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comctl32/treeview: Avoid a NULL pointer dereference.
[wine.git] / dlls / user32 / message.c
bloba1d7779cd55a314790c6b4ef4c2b0b0c8d9d441b
1 /*
2 * Window messaging support
3 *
4 * Copyright 2001 Alexandre Julliard
5 * Copyright 2008 Maarten Lankhorst
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22 #include "config.h"
23 #include "wine/port.h"
24
25 #include <assert.h>
26 #include <stdarg.h>
27
28 #include "ntstatus.h"
29 #define WIN32_NO_STATUS
30 #include "windef.h"
31 #include "winbase.h"
32 #include "wingdi.h"
33 #include "winuser.h"
34 #include "winerror.h"
35 #include "winnls.h"
36 #include "dbt.h"
37 #include "dde.h"
38 #include "imm.h"
39 #include "ddk/imm.h"
40 #include "wine/unicode.h"
41 #include "wine/server.h"
42 #include "user_private.h"
43 #include "win.h"
44 #include "controls.h"
45 #include "wine/debug.h"
46 #include "wine/exception.h"
47
48 WINE_DEFAULT_DEBUG_CHANNEL(msg);
49 WINE_DECLARE_DEBUG_CHANNEL(relay);
50 WINE_DECLARE_DEBUG_CHANNEL(key);
51
52 #define WM_NCMOUSEFIRST WM_NCMOUSEMOVE
53 #define WM_NCMOUSELAST (WM_NCMOUSEFIRST+(WM_MOUSELAST-WM_MOUSEFIRST))
54
55 #define MAX_PACK_COUNT 4
56
57 #define SYS_TIMER_RATE 55 /* min. timer rate in ms (actually 54.925)*/
58
59 /* description of the data fields that need to be packed along with a sent message */
60 struct packed_message
61 {
62 int count;
63 const void *data[MAX_PACK_COUNT];
64 size_t size[MAX_PACK_COUNT];
65 };
66
67 /* info about the message currently being received by the current thread */
68 struct received_message_info
69 {
70 enum message_type type;
71 MSG msg;
72 UINT flags; /* InSendMessageEx return flags */
73 };
74
75 /* structure to group all parameters for sent messages of the various kinds */
76 struct send_message_info
77 {
78 enum message_type type;
79 DWORD dest_tid;
80 HWND hwnd;
81 UINT msg;
82 WPARAM wparam;
83 LPARAM lparam;
84 UINT flags; /* flags for SendMessageTimeout */
85 UINT timeout; /* timeout for SendMessageTimeout */
86 SENDASYNCPROC callback; /* callback function for SendMessageCallback */
87 ULONG_PTR data; /* callback data */
88 enum wm_char_mapping wm_char;
89 };
90
91
92 /* Message class descriptor */
93 static const WCHAR messageW[] = {'M','e','s','s','a','g','e',0};
94 static LRESULT WINAPI message_winproc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam );
95 const struct builtin_class_descr MESSAGE_builtin_class =
96 {
97 messageW, /* name */
98 0, /* style */
99 NULL, /* procA (winproc is Unicode only) */
100 message_winproc, /* procW */
101 0, /* extra */
102 IDC_ARROW, /* cursor */
103 0 /* brush */
104 };
105
106
107
108 /* flag for messages that contain pointers */
109 /* 32 messages per entry, messages 0..31 map to bits 0..31 */
110
111 #define SET(msg) (1 << ((msg) & 31))
112
113 static const unsigned int message_pointer_flags[] =
114 {
115 /* 0x00 - 0x1f */
116 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) |
117 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
118 /* 0x20 - 0x3f */
119 SET(WM_GETMINMAXINFO) | SET(WM_DRAWITEM) | SET(WM_MEASUREITEM) | SET(WM_DELETEITEM) |
120 SET(WM_COMPAREITEM),
121 /* 0x40 - 0x5f */
122 SET(WM_WINDOWPOSCHANGING) | SET(WM_WINDOWPOSCHANGED) | SET(WM_COPYDATA) |
123 SET(WM_NOTIFY) | SET(WM_HELP),
124 /* 0x60 - 0x7f */
125 SET(WM_STYLECHANGING) | SET(WM_STYLECHANGED),
126 /* 0x80 - 0x9f */
127 SET(WM_NCCREATE) | SET(WM_NCCALCSIZE) | SET(WM_GETDLGCODE),
128 /* 0xa0 - 0xbf */
129 SET(EM_GETSEL) | SET(EM_GETRECT) | SET(EM_SETRECT) | SET(EM_SETRECTNP),
130 /* 0xc0 - 0xdf */
131 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETTABSTOPS),
132 /* 0xe0 - 0xff */
133 SET(SBM_GETRANGE) | SET(SBM_SETSCROLLINFO) | SET(SBM_GETSCROLLINFO) | SET(SBM_GETSCROLLBARINFO),
134 /* 0x100 - 0x11f */
135 0,
136 /* 0x120 - 0x13f */
137 0,
138 /* 0x140 - 0x15f */
139 SET(CB_GETEDITSEL) | SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) |
140 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) |
141 SET(CB_GETDROPPEDCONTROLRECT) | SET(CB_FINDSTRINGEXACT),
142 /* 0x160 - 0x17f */
143 0,
144 /* 0x180 - 0x19f */
145 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_SELECTSTRING) |
146 SET(LB_DIR) | SET(LB_FINDSTRING) |
147 SET(LB_GETSELITEMS) | SET(LB_SETTABSTOPS) | SET(LB_ADDFILE) | SET(LB_GETITEMRECT),
148 /* 0x1a0 - 0x1bf */
149 SET(LB_FINDSTRINGEXACT),
150 /* 0x1c0 - 0x1df */
151 0,
152 /* 0x1e0 - 0x1ff */
153 0,
154 /* 0x200 - 0x21f */
155 SET(WM_NEXTMENU) | SET(WM_SIZING) | SET(WM_MOVING) | SET(WM_DEVICECHANGE),
156 /* 0x220 - 0x23f */
157 SET(WM_MDICREATE) | SET(WM_MDIGETACTIVE) | SET(WM_DROPOBJECT) |
158 SET(WM_QUERYDROPOBJECT) | SET(WM_DRAGLOOP) | SET(WM_DRAGSELECT) | SET(WM_DRAGMOVE),
159 /* 0x240 - 0x25f */
160 0,
161 /* 0x260 - 0x27f */
162 0,
163 /* 0x280 - 0x29f */
164 0,
165 /* 0x2a0 - 0x2bf */
166 0,
167 /* 0x2c0 - 0x2df */
168 0,
169 /* 0x2e0 - 0x2ff */
170 0,
171 /* 0x300 - 0x31f */
172 SET(WM_ASKCBFORMATNAME)
173 };
174
175 /* flags for messages that contain Unicode strings */
176 static const unsigned int message_unicode_flags[] =
177 {
178 /* 0x00 - 0x1f */
179 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) | SET(WM_GETTEXTLENGTH) |
180 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
181 /* 0x20 - 0x3f */
182 SET(WM_CHARTOITEM),
183 /* 0x40 - 0x5f */
184 0,
185 /* 0x60 - 0x7f */
186 0,
187 /* 0x80 - 0x9f */
188 SET(WM_NCCREATE),
189 /* 0xa0 - 0xbf */
190 0,
191 /* 0xc0 - 0xdf */
192 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETPASSWORDCHAR),
193 /* 0xe0 - 0xff */
194 0,
195 /* 0x100 - 0x11f */
196 SET(WM_CHAR) | SET(WM_DEADCHAR) | SET(WM_SYSCHAR) | SET(WM_SYSDEADCHAR),
197 /* 0x120 - 0x13f */
198 SET(WM_MENUCHAR),
199 /* 0x140 - 0x15f */
200 SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) | SET(CB_GETLBTEXTLEN) |
201 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) | SET(CB_FINDSTRINGEXACT),
202 /* 0x160 - 0x17f */
203 0,
204 /* 0x180 - 0x19f */
205 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_GETTEXTLEN) |
206 SET(LB_SELECTSTRING) | SET(LB_DIR) | SET(LB_FINDSTRING) | SET(LB_ADDFILE),
207 /* 0x1a0 - 0x1bf */
208 SET(LB_FINDSTRINGEXACT),
209 /* 0x1c0 - 0x1df */
210 0,
211 /* 0x1e0 - 0x1ff */
212 0,
213 /* 0x200 - 0x21f */
214 0,
215 /* 0x220 - 0x23f */
216 SET(WM_MDICREATE),
217 /* 0x240 - 0x25f */
218 0,
219 /* 0x260 - 0x27f */
220 0,
221 /* 0x280 - 0x29f */
222 SET(WM_IME_CHAR),
223 /* 0x2a0 - 0x2bf */
224 0,
225 /* 0x2c0 - 0x2df */
226 0,
227 /* 0x2e0 - 0x2ff */
228 0,
229 /* 0x300 - 0x31f */
230 SET(WM_PAINTCLIPBOARD) | SET(WM_SIZECLIPBOARD) | SET(WM_ASKCBFORMATNAME)
231 };
232
233 /* check whether a given message type includes pointers */
234 static inline int is_pointer_message( UINT message )
235 {
236 if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
237 return (message_pointer_flags[message / 32] & SET(message)) != 0;
238 }
239
240 /* check whether a given message type contains Unicode (or ASCII) chars */
241 static inline int is_unicode_message( UINT message )
242 {
243 if (message >= 8*sizeof(message_unicode_flags)) return FALSE;
244 return (message_unicode_flags[message / 32] & SET(message)) != 0;
245 }
246
247 #undef SET
248
249 /* add a data field to a packed message */
250 static inline void push_data( struct packed_message *data, const void *ptr, size_t size )
251 {
252 data->data[data->count] = ptr;
253 data->size[data->count] = size;
254 data->count++;
255 }
256
257 /* add a string to a packed message */
258 static inline void push_string( struct packed_message *data, LPCWSTR str )
259 {
260 push_data( data, str, (strlenW(str) + 1) * sizeof(WCHAR) );
261 }
262
263 /* make sure that the buffer contains a valid null-terminated Unicode string */
264 static inline BOOL check_string( LPCWSTR str, size_t size )
265 {
266 for (size /= sizeof(WCHAR); size; size--, str++)
267 if (!*str) return TRUE;
268 return FALSE;
269 }
270
271 /* make sure that there is space for 'size' bytes in buffer, growing it if needed */
272 static inline void *get_buffer_space( void **buffer, size_t size )
273 {
274 void *ret;
275
276 if (*buffer)
277 {
278 if (!(ret = HeapReAlloc( GetProcessHeap(), 0, *buffer, size )))
279 HeapFree( GetProcessHeap(), 0, *buffer );
280 }
281 else ret = HeapAlloc( GetProcessHeap(), 0, size );
282
283 *buffer = ret;
284 return ret;
285 }
286
287 /* check whether a combobox expects strings or ids in CB_ADDSTRING/CB_INSERTSTRING */
288 static inline BOOL combobox_has_strings( HWND hwnd )
289 {
290 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
291 return (!(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) || (style & CBS_HASSTRINGS));
292 }
293
294 /* check whether a listbox expects strings or ids in LB_ADDSTRING/LB_INSERTSTRING */
295 static inline BOOL listbox_has_strings( HWND hwnd )
296 {
297 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
298 return (!(style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE)) || (style & LBS_HASSTRINGS));
299 }
300
301 /* check whether message is in the range of keyboard messages */
302 static inline BOOL is_keyboard_message( UINT message )
303 {
304 return (message >= WM_KEYFIRST && message <= WM_KEYLAST);
305 }
306
307 /* check whether message is in the range of mouse messages */
308 static inline BOOL is_mouse_message( UINT message )
309 {
310 return ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) ||
311 (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST));
312 }
313
314 /* check whether message matches the specified hwnd filter */
315 static inline BOOL check_hwnd_filter( const MSG *msg, HWND hwnd_filter )
316 {
317 if (!hwnd_filter || hwnd_filter == GetDesktopWindow()) return TRUE;
318 return (msg->hwnd == hwnd_filter || IsChild( hwnd_filter, msg->hwnd ));
319 }
320
321 /* check for pending WM_CHAR message with DBCS trailing byte */
322 static inline BOOL get_pending_wmchar( MSG *msg, UINT first, UINT last, BOOL remove )
323 {
324 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
325
326 if (!data || !data->get_msg.message) return FALSE;
327 if ((first || last) && (first > WM_CHAR || last < WM_CHAR)) return FALSE;
328 if (!msg) return FALSE;
329 *msg = data->get_msg;
330 if (remove) data->get_msg.message = 0;
331 return TRUE;
332 }
333
334
335 /***********************************************************************
336 * message_winproc
337 *
338 * Window procedure for "Message" windows (HWND_MESSAGE parent).
339 */
340 static LRESULT WINAPI message_winproc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
341 {
342 if (message == WM_NCCREATE) return TRUE;
343 return 0; /* all other messages are ignored */
344 }
345
346
347 /***********************************************************************
348 * broadcast_message_callback
349 *
350 * Helper callback for broadcasting messages.
351 */
352 static BOOL CALLBACK broadcast_message_callback( HWND hwnd, LPARAM lparam )
353 {
354 struct send_message_info *info = (struct send_message_info *)lparam;
355 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & (WS_POPUP|WS_CAPTION))) return TRUE;
356 switch(info->type)
357 {
358 case MSG_UNICODE:
359 SendMessageTimeoutW( hwnd, info->msg, info->wparam, info->lparam,
360 info->flags, info->timeout, NULL );
361 break;
362 case MSG_ASCII:
363 SendMessageTimeoutA( hwnd, info->msg, info->wparam, info->lparam,
364 info->flags, info->timeout, NULL );
365 break;
366 case MSG_NOTIFY:
367 SendNotifyMessageW( hwnd, info->msg, info->wparam, info->lparam );
368 break;
369 case MSG_CALLBACK:
370 SendMessageCallbackW( hwnd, info->msg, info->wparam, info->lparam,
371 info->callback, info->data );
372 break;
373 case MSG_POSTED:
374 PostMessageW( hwnd, info->msg, info->wparam, info->lparam );
375 break;
376 default:
377 ERR( "bad type %d\n", info->type );
378 break;
379 }
380 return TRUE;
381 }
382
383
384 /***********************************************************************
385 * map_wparam_AtoW
386 *
387 * Convert the wparam of an ASCII message to Unicode.
388 */
389 BOOL map_wparam_AtoW( UINT message, WPARAM *wparam, enum wm_char_mapping mapping )
390 {
391 char ch[2];
392 WCHAR wch[2];
393
394 wch[0] = wch[1] = 0;
395 switch(message)
396 {
397 case WM_CHAR:
398 /* WM_CHAR is magic: a DBCS char can be sent/posted as two consecutive WM_CHAR
399 * messages, in which case the first char is stored, and the conversion
400 * to Unicode only takes place once the second char is sent/posted.
401 */
402 if (mapping != WMCHAR_MAP_NOMAPPING)
403 {
404 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
405 BYTE low = LOBYTE(*wparam);
406
407 if (HIBYTE(*wparam))
408 {
409 ch[0] = low;
410 ch[1] = HIBYTE(*wparam);
411 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
412 TRACE( "map %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
413 if (data) data->lead_byte[mapping] = 0;
414 }
415 else if (data && data->lead_byte[mapping])
416 {
417 ch[0] = data->lead_byte[mapping];
418 ch[1] = low;
419 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
420 TRACE( "map stored %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
421 data->lead_byte[mapping] = 0;
422 }
423 else if (!IsDBCSLeadByte( low ))
424 {
425 ch[0] = low;
426 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 1 );
427 TRACE( "map %02x -> %04x\n", (BYTE)ch[0], wch[0] );
428 if (data) data->lead_byte[mapping] = 0;
429 }
430 else /* store it and wait for trail byte */
431 {
432 if (!data)
433 {
434 if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) )))
435 return FALSE;
436 get_user_thread_info()->wmchar_data = data;
437 }
438 TRACE( "storing lead byte %02x mapping %u\n", low, mapping );
439 data->lead_byte[mapping] = low;
440 return FALSE;
441 }
442 *wparam = MAKEWPARAM(wch[0], wch[1]);
443 break;
444 }
445 /* else fall through */
446 case WM_CHARTOITEM:
447 case EM_SETPASSWORDCHAR:
448 case WM_DEADCHAR:
449 case WM_SYSCHAR:
450 case WM_SYSDEADCHAR:
451 case WM_MENUCHAR:
452 ch[0] = LOBYTE(*wparam);
453 ch[1] = HIBYTE(*wparam);
454 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
455 *wparam = MAKEWPARAM(wch[0], wch[1]);
456 break;
457 case WM_IME_CHAR:
458 ch[0] = HIBYTE(*wparam);
459 ch[1] = LOBYTE(*wparam);
460 if (ch[0]) RtlMultiByteToUnicodeN( wch, sizeof(wch[0]), NULL, ch, 2 );
461 else RtlMultiByteToUnicodeN( wch, sizeof(wch[0]), NULL, ch + 1, 1 );
462 *wparam = MAKEWPARAM(wch[0], HIWORD(*wparam));
463 break;
464 }
465 return TRUE;
466 }
467
468
469 /***********************************************************************
470 * map_wparam_WtoA
471 *
472 * Convert the wparam of a Unicode message to ASCII.
473 */
474 static void map_wparam_WtoA( MSG *msg, BOOL remove )
475 {
476 BYTE ch[2];
477 WCHAR wch[2];
478 DWORD len;
479
480 switch(msg->message)
481 {
482 case WM_CHAR:
483 if (!HIWORD(msg->wParam))
484 {
485 wch[0] = LOWORD(msg->wParam);
486 ch[0] = ch[1] = 0;
487 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, &len, wch, sizeof(wch[0]) );
488 if (len == 2) /* DBCS char */
489 {
490 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
491 if (!data)
492 {
493 if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) ))) return;
494 get_user_thread_info()->wmchar_data = data;
495 }
496 if (remove)
497 {
498 data->get_msg = *msg;
499 data->get_msg.wParam = ch[1];
500 }
501 msg->wParam = ch[0];
502 return;
503 }
504 }
505 /* else fall through */
506 case WM_CHARTOITEM:
507 case EM_SETPASSWORDCHAR:
508 case WM_DEADCHAR:
509 case WM_SYSCHAR:
510 case WM_SYSDEADCHAR:
511 case WM_MENUCHAR:
512 wch[0] = LOWORD(msg->wParam);
513 wch[1] = HIWORD(msg->wParam);
514 ch[0] = ch[1] = 0;
515 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, NULL, wch, sizeof(wch) );
516 msg->wParam = MAKEWPARAM( ch[0] | (ch[1] << 8), 0 );
517 break;
518 case WM_IME_CHAR:
519 wch[0] = LOWORD(msg->wParam);
520 ch[0] = ch[1] = 0;
521 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, &len, wch, sizeof(wch[0]) );
522 if (len == 2)
523 msg->wParam = MAKEWPARAM( (ch[0] << 8) | ch[1], HIWORD(msg->wParam) );
524 else
525 msg->wParam = MAKEWPARAM( ch[0], HIWORD(msg->wParam) );
526 break;
527 }
528 }
529
530
531 /***********************************************************************
532 * pack_message
533 *
534 * Pack a message for sending to another process.
535 * Return the size of the data we expect in the message reply.
536 * Set data->count to -1 if there is an error.
537 */
538 static size_t pack_message( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
539 struct packed_message *data )
540 {
541 data->count = 0;
542 switch(message)
543 {
544 case WM_NCCREATE:
545 case WM_CREATE:
546 {
547 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
548 push_data( data, cs, sizeof(*cs) );
549 if (HIWORD(cs->lpszName)) push_string( data, cs->lpszName );
550 if (HIWORD(cs->lpszClass)) push_string( data, cs->lpszClass );
551 return sizeof(*cs);
552 }
553 case WM_GETTEXT:
554 case WM_ASKCBFORMATNAME:
555 return wparam * sizeof(WCHAR);
556 case WM_WININICHANGE:
557 if (lparam) push_string(data, (LPWSTR)lparam );
558 return 0;
559 case WM_SETTEXT:
560 case WM_DEVMODECHANGE:
561 case CB_DIR:
562 case LB_DIR:
563 case LB_ADDFILE:
564 case EM_REPLACESEL:
565 push_string( data, (LPWSTR)lparam );
566 return 0;
567 case WM_GETMINMAXINFO:
568 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
569 return sizeof(MINMAXINFO);
570 case WM_DRAWITEM:
571 push_data( data, (DRAWITEMSTRUCT *)lparam, sizeof(DRAWITEMSTRUCT) );
572 return 0;
573 case WM_MEASUREITEM:
574 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
575 return sizeof(MEASUREITEMSTRUCT);
576 case WM_DELETEITEM:
577 push_data( data, (DELETEITEMSTRUCT *)lparam, sizeof(DELETEITEMSTRUCT) );
578 return 0;
579 case WM_COMPAREITEM:
580 push_data( data, (COMPAREITEMSTRUCT *)lparam, sizeof(COMPAREITEMSTRUCT) );
581 return 0;
582 case WM_WINDOWPOSCHANGING:
583 case WM_WINDOWPOSCHANGED:
584 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
585 return sizeof(WINDOWPOS);
586 case WM_COPYDATA:
587 {
588 COPYDATASTRUCT *cp = (COPYDATASTRUCT *)lparam;
589 push_data( data, cp, sizeof(*cp) );
590 if (cp->lpData) push_data( data, cp->lpData, cp->cbData );
591 return 0;
592 }
593 case WM_NOTIFY:
594 /* WM_NOTIFY cannot be sent across processes (MSDN) */
595 data->count = -1;
596 return 0;
597 case WM_HELP:
598 push_data( data, (HELPINFO *)lparam, sizeof(HELPINFO) );
599 return 0;
600 case WM_STYLECHANGING:
601 case WM_STYLECHANGED:
602 push_data( data, (STYLESTRUCT *)lparam, sizeof(STYLESTRUCT) );
603 return 0;
604 case WM_NCCALCSIZE:
605 if (!wparam)
606 {
607 push_data( data, (RECT *)lparam, sizeof(RECT) );
608 return sizeof(RECT);
609 }
610 else
611 {
612 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
613 push_data( data, nc, sizeof(*nc) );
614 push_data( data, nc->lppos, sizeof(*nc->lppos) );
615 return sizeof(*nc) + sizeof(*nc->lppos);
616 }
617 case WM_GETDLGCODE:
618 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
619 return sizeof(MSG);
620 case SBM_SETSCROLLINFO:
621 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
622 return 0;
623 case SBM_GETSCROLLINFO:
624 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
625 return sizeof(SCROLLINFO);
626 case SBM_GETSCROLLBARINFO:
627 {
628 const SCROLLBARINFO *info = (const SCROLLBARINFO *)lparam;
629 size_t size = min( info->cbSize, sizeof(SCROLLBARINFO) );
630 push_data( data, info, size );
631 return size;
632 }
633 case EM_GETSEL:
634 case SBM_GETRANGE:
635 case CB_GETEDITSEL:
636 {
637 size_t size = 0;
638 if (wparam) size += sizeof(DWORD);
639 if (lparam) size += sizeof(DWORD);
640 return size;
641 }
642 case EM_GETRECT:
643 case LB_GETITEMRECT:
644 case CB_GETDROPPEDCONTROLRECT:
645 return sizeof(RECT);
646 case EM_SETRECT:
647 case EM_SETRECTNP:
648 push_data( data, (RECT *)lparam, sizeof(RECT) );
649 return 0;
650 case EM_GETLINE:
651 {
652 WORD *pw = (WORD *)lparam;
653 push_data( data, pw, sizeof(*pw) );
654 return *pw * sizeof(WCHAR);
655 }
656 case EM_SETTABSTOPS:
657 case LB_SETTABSTOPS:
658 if (wparam) push_data( data, (UINT *)lparam, sizeof(UINT) * wparam );
659 return 0;
660 case CB_ADDSTRING:
661 case CB_INSERTSTRING:
662 case CB_FINDSTRING:
663 case CB_FINDSTRINGEXACT:
664 case CB_SELECTSTRING:
665 if (combobox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
666 return 0;
667 case CB_GETLBTEXT:
668 if (!combobox_has_strings( hwnd )) return sizeof(ULONG_PTR);
669 return (SendMessageW( hwnd, CB_GETLBTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
670 case LB_ADDSTRING:
671 case LB_INSERTSTRING:
672 case LB_FINDSTRING:
673 case LB_FINDSTRINGEXACT:
674 case LB_SELECTSTRING:
675 if (listbox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
676 return 0;
677 case LB_GETTEXT:
678 if (!listbox_has_strings( hwnd )) return sizeof(ULONG_PTR);
679 return (SendMessageW( hwnd, LB_GETTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
680 case LB_GETSELITEMS:
681 return wparam * sizeof(UINT);
682 case WM_NEXTMENU:
683 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
684 return sizeof(MDINEXTMENU);
685 case WM_SIZING:
686 case WM_MOVING:
687 push_data( data, (RECT *)lparam, sizeof(RECT) );
688 return sizeof(RECT);
689 case WM_MDICREATE:
690 {
691 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
692 push_data( data, cs, sizeof(*cs) );
693 if (HIWORD(cs->szTitle)) push_string( data, cs->szTitle );
694 if (HIWORD(cs->szClass)) push_string( data, cs->szClass );
695 return sizeof(*cs);
696 }
697 case WM_MDIGETACTIVE:
698 if (lparam) return sizeof(BOOL);
699 return 0;
700 case WM_DEVICECHANGE:
701 {
702 DEV_BROADCAST_HDR *header = (DEV_BROADCAST_HDR *)lparam;
703 push_data( data, header, header->dbch_size );
704 return 0;
705 }
706 case WM_WINE_SETWINDOWPOS:
707 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
708 return 0;
709 case WM_WINE_KEYBOARD_LL_HOOK:
710 {
711 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
712 push_data( data, h_extra, sizeof(*h_extra) );
713 push_data( data, (LPVOID)h_extra->lparam, sizeof(KBDLLHOOKSTRUCT) );
714 return 0;
715 }
716 case WM_WINE_MOUSE_LL_HOOK:
717 {
718 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
719 push_data( data, h_extra, sizeof(*h_extra) );
720 push_data( data, (LPVOID)h_extra->lparam, sizeof(MSLLHOOKSTRUCT) );
721 return 0;
722 }
723 case WM_NCPAINT:
724 if (wparam <= 1) return 0;
725 FIXME( "WM_NCPAINT hdc packing not supported yet\n" );
726 data->count = -1;
727 return 0;
728 case WM_PAINT:
729 if (!wparam) return 0;
730 /* fall through */
731
732 /* these contain an HFONT */
733 case WM_SETFONT:
734 case WM_GETFONT:
735 /* these contain an HDC */
736 case WM_ERASEBKGND:
737 case WM_ICONERASEBKGND:
738 case WM_CTLCOLORMSGBOX:
739 case WM_CTLCOLOREDIT:
740 case WM_CTLCOLORLISTBOX:
741 case WM_CTLCOLORBTN:
742 case WM_CTLCOLORDLG:
743 case WM_CTLCOLORSCROLLBAR:
744 case WM_CTLCOLORSTATIC:
745 case WM_PRINT:
746 case WM_PRINTCLIENT:
747 /* these contain an HGLOBAL */
748 case WM_PAINTCLIPBOARD:
749 case WM_SIZECLIPBOARD:
750 /* these contain HICON */
751 case WM_GETICON:
752 case WM_SETICON:
753 case WM_QUERYDRAGICON:
754 case WM_QUERYPARKICON:
755 /* these contain pointers */
756 case WM_DROPOBJECT:
757 case WM_QUERYDROPOBJECT:
758 case WM_DRAGLOOP:
759 case WM_DRAGSELECT:
760 case WM_DRAGMOVE:
761 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
762 data->count = -1;
763 return 0;
764 }
765 return 0;
766 }
767
768
769 /***********************************************************************
770 * unpack_message
771 *
772 * Unpack a message received from another process.
773 */
774 static BOOL unpack_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
775 void **buffer, size_t size )
776 {
777 size_t minsize = 0;
778
779 switch(message)
780 {
781 case WM_NCCREATE:
782 case WM_CREATE:
783 {
784 CREATESTRUCTW *cs = *buffer;
785 WCHAR *str = (WCHAR *)(cs + 1);
786 if (size < sizeof(*cs)) return FALSE;
787 size -= sizeof(*cs);
788 if (HIWORD(cs->lpszName))
789 {
790 if (!check_string( str, size )) return FALSE;
791 cs->lpszName = str;
792 size -= (strlenW(str) + 1) * sizeof(WCHAR);
793 str += strlenW(str) + 1;
794 }
795 if (HIWORD(cs->lpszClass))
796 {
797 if (!check_string( str, size )) return FALSE;
798 cs->lpszClass = str;
799 }
800 break;
801 }
802 case WM_GETTEXT:
803 case WM_ASKCBFORMATNAME:
804 if (!get_buffer_space( buffer, (*wparam * sizeof(WCHAR)) )) return FALSE;
805 break;
806 case WM_WININICHANGE:
807 if (!*lparam) return TRUE;
808 /* fall through */
809 case WM_SETTEXT:
810 case WM_DEVMODECHANGE:
811 case CB_DIR:
812 case LB_DIR:
813 case LB_ADDFILE:
814 case EM_REPLACESEL:
815 if (!check_string( *buffer, size )) return FALSE;
816 break;
817 case WM_GETMINMAXINFO:
818 minsize = sizeof(MINMAXINFO);
819 break;
820 case WM_DRAWITEM:
821 minsize = sizeof(DRAWITEMSTRUCT);
822 break;
823 case WM_MEASUREITEM:
824 minsize = sizeof(MEASUREITEMSTRUCT);
825 break;
826 case WM_DELETEITEM:
827 minsize = sizeof(DELETEITEMSTRUCT);
828 break;
829 case WM_COMPAREITEM:
830 minsize = sizeof(COMPAREITEMSTRUCT);
831 break;
832 case WM_WINDOWPOSCHANGING:
833 case WM_WINDOWPOSCHANGED:
834 case WM_WINE_SETWINDOWPOS:
835 minsize = sizeof(WINDOWPOS);
836 break;
837 case WM_COPYDATA:
838 {
839 COPYDATASTRUCT *cp = *buffer;
840 if (size < sizeof(*cp)) return FALSE;
841 if (cp->lpData)
842 {
843 minsize = sizeof(*cp) + cp->cbData;
844 cp->lpData = cp + 1;
845 }
846 break;
847 }
848 case WM_NOTIFY:
849 /* WM_NOTIFY cannot be sent across processes (MSDN) */
850 return FALSE;
851 case WM_HELP:
852 minsize = sizeof(HELPINFO);
853 break;
854 case WM_STYLECHANGING:
855 case WM_STYLECHANGED:
856 minsize = sizeof(STYLESTRUCT);
857 break;
858 case WM_NCCALCSIZE:
859 if (!*wparam) minsize = sizeof(RECT);
860 else
861 {
862 NCCALCSIZE_PARAMS *nc = *buffer;
863 if (size < sizeof(*nc) + sizeof(*nc->lppos)) return FALSE;
864 nc->lppos = (WINDOWPOS *)(nc + 1);
865 }
866 break;
867 case WM_GETDLGCODE:
868 if (!*lparam) return TRUE;
869 minsize = sizeof(MSG);
870 break;
871 case SBM_SETSCROLLINFO:
872 minsize = sizeof(SCROLLINFO);
873 break;
874 case SBM_GETSCROLLINFO:
875 if (!get_buffer_space( buffer, sizeof(SCROLLINFO ))) return FALSE;
876 break;
877 case SBM_GETSCROLLBARINFO:
878 if (!get_buffer_space( buffer, sizeof(SCROLLBARINFO ))) return FALSE;
879 break;
880 case EM_GETSEL:
881 case SBM_GETRANGE:
882 case CB_GETEDITSEL:
883 if (*wparam || *lparam)
884 {
885 if (!get_buffer_space( buffer, 2*sizeof(DWORD) )) return FALSE;
886 if (*wparam) *wparam = (WPARAM)*buffer;
887 if (*lparam) *lparam = (LPARAM)((DWORD *)*buffer + 1);
888 }
889 return TRUE;
890 case EM_GETRECT:
891 case LB_GETITEMRECT:
892 case CB_GETDROPPEDCONTROLRECT:
893 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
894 break;
895 case EM_SETRECT:
896 case EM_SETRECTNP:
897 minsize = sizeof(RECT);
898 break;
899 case EM_GETLINE:
900 {
901 WORD len;
902 if (size < sizeof(WORD)) return FALSE;
903 len = *(WORD *)*buffer;
904 if (!get_buffer_space( buffer, (len + 1) * sizeof(WCHAR) )) return FALSE;
905 *lparam = (LPARAM)*buffer + sizeof(WORD); /* don't erase WORD at start of buffer */
906 return TRUE;
907 }
908 case EM_SETTABSTOPS:
909 case LB_SETTABSTOPS:
910 if (!*wparam) return TRUE;
911 minsize = *wparam * sizeof(UINT);
912 break;
913 case CB_ADDSTRING:
914 case CB_INSERTSTRING:
915 case CB_FINDSTRING:
916 case CB_FINDSTRINGEXACT:
917 case CB_SELECTSTRING:
918 case LB_ADDSTRING:
919 case LB_INSERTSTRING:
920 case LB_FINDSTRING:
921 case LB_FINDSTRINGEXACT:
922 case LB_SELECTSTRING:
923 if (!*buffer) return TRUE;
924 if (!check_string( *buffer, size )) return FALSE;
925 break;
926 case CB_GETLBTEXT:
927 {
928 size = sizeof(ULONG_PTR);
929 if (combobox_has_strings( hwnd ))
930 size = (SendMessageW( hwnd, CB_GETLBTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
931 if (!get_buffer_space( buffer, size )) return FALSE;
932 break;
933 }
934 case LB_GETTEXT:
935 {
936 size = sizeof(ULONG_PTR);
937 if (listbox_has_strings( hwnd ))
938 size = (SendMessageW( hwnd, LB_GETTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
939 if (!get_buffer_space( buffer, size )) return FALSE;
940 break;
941 }
942 case LB_GETSELITEMS:
943 if (!get_buffer_space( buffer, *wparam * sizeof(UINT) )) return FALSE;
944 break;
945 case WM_NEXTMENU:
946 minsize = sizeof(MDINEXTMENU);
947 if (!get_buffer_space( buffer, sizeof(MDINEXTMENU) )) return FALSE;
948 break;
949 case WM_SIZING:
950 case WM_MOVING:
951 minsize = sizeof(RECT);
952 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
953 break;
954 case WM_MDICREATE:
955 {
956 MDICREATESTRUCTW *cs = *buffer;
957 WCHAR *str = (WCHAR *)(cs + 1);
958 if (size < sizeof(*cs)) return FALSE;
959 size -= sizeof(*cs);
960 if (HIWORD(cs->szTitle))
961 {
962 if (!check_string( str, size )) return FALSE;
963 cs->szTitle = str;
964 size -= (strlenW(str) + 1) * sizeof(WCHAR);
965 str += strlenW(str) + 1;
966 }
967 if (HIWORD(cs->szClass))
968 {
969 if (!check_string( str, size )) return FALSE;
970 cs->szClass = str;
971 }
972 break;
973 }
974 case WM_MDIGETACTIVE:
975 if (!*lparam) return TRUE;
976 if (!get_buffer_space( buffer, sizeof(BOOL) )) return FALSE;
977 break;
978 case WM_DEVICECHANGE:
979 minsize = sizeof(DEV_BROADCAST_HDR);
980 break;
981 case WM_WINE_KEYBOARD_LL_HOOK:
982 case WM_WINE_MOUSE_LL_HOOK:
983 {
984 struct hook_extra_info *h_extra = *buffer;
985
986 minsize = sizeof(struct hook_extra_info) +
987 (message == WM_WINE_KEYBOARD_LL_HOOK ? sizeof(KBDLLHOOKSTRUCT)
988 : sizeof(MSLLHOOKSTRUCT));
989 if (size < minsize) return FALSE;
990 h_extra->lparam = (LPARAM)(h_extra + 1);
991 break;
992 }
993 case WM_NCPAINT:
994 if (*wparam <= 1) return TRUE;
995 FIXME( "WM_NCPAINT hdc unpacking not supported\n" );
996 return FALSE;
997 case WM_PAINT:
998 if (!*wparam) return TRUE;
999 /* fall through */
1000
1001 /* these contain an HFONT */
1002 case WM_SETFONT:
1003 case WM_GETFONT:
1004 /* these contain an HDC */
1005 case WM_ERASEBKGND:
1006 case WM_ICONERASEBKGND:
1007 case WM_CTLCOLORMSGBOX:
1008 case WM_CTLCOLOREDIT:
1009 case WM_CTLCOLORLISTBOX:
1010 case WM_CTLCOLORBTN:
1011 case WM_CTLCOLORDLG:
1012 case WM_CTLCOLORSCROLLBAR:
1013 case WM_CTLCOLORSTATIC:
1014 case WM_PRINT:
1015 case WM_PRINTCLIENT:
1016 /* these contain an HGLOBAL */
1017 case WM_PAINTCLIPBOARD:
1018 case WM_SIZECLIPBOARD:
1019 /* these contain HICON */
1020 case WM_GETICON:
1021 case WM_SETICON:
1022 case WM_QUERYDRAGICON:
1023 case WM_QUERYPARKICON:
1024 /* these contain pointers */
1025 case WM_DROPOBJECT:
1026 case WM_QUERYDROPOBJECT:
1027 case WM_DRAGLOOP:
1028 case WM_DRAGSELECT:
1029 case WM_DRAGMOVE:
1030 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
1031 return FALSE;
1032
1033 default:
1034 return TRUE; /* message doesn't need any unpacking */
1035 }
1036
1037 /* default exit for most messages: check minsize and store buffer in lparam */
1038 if (size < minsize) return FALSE;
1039 *lparam = (LPARAM)*buffer;
1040 return TRUE;
1041 }
1042
1043
1044 /***********************************************************************
1045 * pack_reply
1046 *
1047 * Pack a reply to a message for sending to another process.
1048 */
1049 static void pack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1050 LRESULT res, struct packed_message *data )
1051 {
1052 data->count = 0;
1053 switch(message)
1054 {
1055 case WM_NCCREATE:
1056 case WM_CREATE:
1057 push_data( data, (CREATESTRUCTW *)lparam, sizeof(CREATESTRUCTW) );
1058 break;
1059 case WM_GETTEXT:
1060 case CB_GETLBTEXT:
1061 case LB_GETTEXT:
1062 push_data( data, (WCHAR *)lparam, (res + 1) * sizeof(WCHAR) );
1063 break;
1064 case WM_GETMINMAXINFO:
1065 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
1066 break;
1067 case WM_MEASUREITEM:
1068 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
1069 break;
1070 case WM_WINDOWPOSCHANGING:
1071 case WM_WINDOWPOSCHANGED:
1072 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
1073 break;
1074 case WM_GETDLGCODE:
1075 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
1076 break;
1077 case SBM_GETSCROLLINFO:
1078 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
1079 break;
1080 case EM_GETRECT:
1081 case LB_GETITEMRECT:
1082 case CB_GETDROPPEDCONTROLRECT:
1083 case WM_SIZING:
1084 case WM_MOVING:
1085 push_data( data, (RECT *)lparam, sizeof(RECT) );
1086 break;
1087 case EM_GETLINE:
1088 {
1089 WORD *ptr = (WORD *)lparam;
1090 push_data( data, ptr, ptr[-1] * sizeof(WCHAR) );
1091 break;
1092 }
1093 case LB_GETSELITEMS:
1094 push_data( data, (UINT *)lparam, wparam * sizeof(UINT) );
1095 break;
1096 case WM_MDIGETACTIVE:
1097 if (lparam) push_data( data, (BOOL *)lparam, sizeof(BOOL) );
1098 break;
1099 case WM_NCCALCSIZE:
1100 if (!wparam)
1101 push_data( data, (RECT *)lparam, sizeof(RECT) );
1102 else
1103 {
1104 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1105 push_data( data, nc, sizeof(*nc) );
1106 push_data( data, nc->lppos, sizeof(*nc->lppos) );
1107 }
1108 break;
1109 case EM_GETSEL:
1110 case SBM_GETRANGE:
1111 case CB_GETEDITSEL:
1112 if (wparam) push_data( data, (DWORD *)wparam, sizeof(DWORD) );
1113 if (lparam) push_data( data, (DWORD *)lparam, sizeof(DWORD) );
1114 break;
1115 case WM_NEXTMENU:
1116 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
1117 break;
1118 case WM_MDICREATE:
1119 push_data( data, (MDICREATESTRUCTW *)lparam, sizeof(MDICREATESTRUCTW) );
1120 break;
1121 case WM_ASKCBFORMATNAME:
1122 push_data( data, (WCHAR *)lparam, (strlenW((WCHAR *)lparam) + 1) * sizeof(WCHAR) );
1123 break;
1124 }
1125 }
1126
1127
1128 /***********************************************************************
1129 * unpack_reply
1130 *
1131 * Unpack a message reply received from another process.
1132 */
1133 static void unpack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1134 void *buffer, size_t size )
1135 {
1136 switch(message)
1137 {
1138 case WM_NCCREATE:
1139 case WM_CREATE:
1140 {
1141 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
1142 LPCWSTR name = cs->lpszName, class = cs->lpszClass;
1143 memcpy( cs, buffer, min( sizeof(*cs), size ));
1144 cs->lpszName = name; /* restore the original pointers */
1145 cs->lpszClass = class;
1146 break;
1147 }
1148 case WM_GETTEXT:
1149 case WM_ASKCBFORMATNAME:
1150 memcpy( (WCHAR *)lparam, buffer, min( wparam*sizeof(WCHAR), size ));
1151 break;
1152 case WM_GETMINMAXINFO:
1153 memcpy( (MINMAXINFO *)lparam, buffer, min( sizeof(MINMAXINFO), size ));
1154 break;
1155 case WM_MEASUREITEM:
1156 memcpy( (MEASUREITEMSTRUCT *)lparam, buffer, min( sizeof(MEASUREITEMSTRUCT), size ));
1157 break;
1158 case WM_WINDOWPOSCHANGING:
1159 case WM_WINDOWPOSCHANGED:
1160 memcpy( (WINDOWPOS *)lparam, buffer, min( sizeof(WINDOWPOS), size ));
1161 break;
1162 case WM_GETDLGCODE:
1163 if (lparam) memcpy( (MSG *)lparam, buffer, min( sizeof(MSG), size ));
1164 break;
1165 case SBM_GETSCROLLINFO:
1166 memcpy( (SCROLLINFO *)lparam, buffer, min( sizeof(SCROLLINFO), size ));
1167 break;
1168 case SBM_GETSCROLLBARINFO:
1169 memcpy( (SCROLLBARINFO *)lparam, buffer, min( sizeof(SCROLLBARINFO), size ));
1170 break;
1171 case EM_GETRECT:
1172 case CB_GETDROPPEDCONTROLRECT:
1173 case LB_GETITEMRECT:
1174 case WM_SIZING:
1175 case WM_MOVING:
1176 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1177 break;
1178 case EM_GETLINE:
1179 size = min( size, (size_t)*(WORD *)lparam );
1180 memcpy( (WCHAR *)lparam, buffer, size );
1181 break;
1182 case LB_GETSELITEMS:
1183 memcpy( (UINT *)lparam, buffer, min( wparam*sizeof(UINT), size ));
1184 break;
1185 case LB_GETTEXT:
1186 case CB_GETLBTEXT:
1187 memcpy( (WCHAR *)lparam, buffer, size );
1188 break;
1189 case WM_NEXTMENU:
1190 memcpy( (MDINEXTMENU *)lparam, buffer, min( sizeof(MDINEXTMENU), size ));
1191 break;
1192 case WM_MDIGETACTIVE:
1193 if (lparam) memcpy( (BOOL *)lparam, buffer, min( sizeof(BOOL), size ));
1194 break;
1195 case WM_NCCALCSIZE:
1196 if (!wparam)
1197 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1198 else
1199 {
1200 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1201 WINDOWPOS *wp = nc->lppos;
1202 memcpy( nc, buffer, min( sizeof(*nc), size ));
1203 if (size > sizeof(*nc))
1204 {
1205 size -= sizeof(*nc);
1206 memcpy( wp, (NCCALCSIZE_PARAMS*)buffer + 1, min( sizeof(*wp), size ));
1207 }
1208 nc->lppos = wp; /* restore the original pointer */
1209 }
1210 break;
1211 case EM_GETSEL:
1212 case SBM_GETRANGE:
1213 case CB_GETEDITSEL:
1214 if (wparam)
1215 {
1216 memcpy( (DWORD *)wparam, buffer, min( sizeof(DWORD), size ));
1217 if (size <= sizeof(DWORD)) break;
1218 size -= sizeof(DWORD);
1219 buffer = (DWORD *)buffer + 1;
1220 }
1221 if (lparam) memcpy( (DWORD *)lparam, buffer, min( sizeof(DWORD), size ));
1222 break;
1223 case WM_MDICREATE:
1224 {
1225 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
1226 LPCWSTR title = cs->szTitle, class = cs->szClass;
1227 memcpy( cs, buffer, min( sizeof(*cs), size ));
1228 cs->szTitle = title; /* restore the original pointers */
1229 cs->szClass = class;
1230 break;
1231 }
1232 default:
1233 ERR( "should not happen: unexpected message %x\n", message );
1234 break;
1235 }
1236 }
1237
1238
1239 /***********************************************************************
1240 * reply_message
1241 *
1242 * Send a reply to a sent message.
1243 */
1244 static void reply_message( struct received_message_info *info, LRESULT result, BOOL remove )
1245 {
1246 struct packed_message data;
1247 int i, replied = info->flags & ISMEX_REPLIED;
1248
1249 if (info->flags & ISMEX_NOTIFY) return; /* notify messages don't get replies */
1250 if (!remove && replied) return; /* replied already */
1251
1252 data.count = 0;
1253 info->flags |= ISMEX_REPLIED;
1254
1255 if (info->type == MSG_OTHER_PROCESS && !replied)
1256 {
1257 pack_reply( info->msg.hwnd, info->msg.message, info->msg.wParam,
1258 info->msg.lParam, result, &data );
1259 }
1260
1261 SERVER_START_REQ( reply_message )
1262 {
1263 req->result = result;
1264 req->remove = remove;
1265 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
1266 wine_server_call( req );
1267 }
1268 SERVER_END_REQ;
1269 }
1270
1271
1272 /***********************************************************************
1273 * handle_internal_message
1274 *
1275 * Handle an internal Wine message instead of calling the window proc.
1276 */
1277 static LRESULT handle_internal_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
1278 {
1279 switch(msg)
1280 {
1281 case WM_WINE_DESTROYWINDOW:
1282 return WIN_DestroyWindow( hwnd );
1283 case WM_WINE_SETWINDOWPOS:
1284 if (is_desktop_window( hwnd )) return 0;
1285 return USER_SetWindowPos( (WINDOWPOS *)lparam );
1286 case WM_WINE_SHOWWINDOW:
1287 if (is_desktop_window( hwnd )) return 0;
1288 return ShowWindow( hwnd, wparam );
1289 case WM_WINE_SETPARENT:
1290 if (is_desktop_window( hwnd )) return 0;
1291 return (LRESULT)SetParent( hwnd, (HWND)wparam );
1292 case WM_WINE_SETWINDOWLONG:
1293 return WIN_SetWindowLong( hwnd, (short)LOWORD(wparam), HIWORD(wparam), lparam, TRUE );
1294 case WM_WINE_ENABLEWINDOW:
1295 if (is_desktop_window( hwnd )) return 0;
1296 return EnableWindow( hwnd, wparam );
1297 case WM_WINE_SETACTIVEWINDOW:
1298 if (is_desktop_window( hwnd )) return 0;
1299 return (LRESULT)SetActiveWindow( (HWND)wparam );
1300 case WM_WINE_KEYBOARD_LL_HOOK:
1301 case WM_WINE_MOUSE_LL_HOOK:
1302 {
1303 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
1304
1305 return call_current_hook( h_extra->handle, HC_ACTION, wparam, h_extra->lparam );
1306 }
1307 default:
1308 if (msg >= WM_WINE_FIRST_DRIVER_MSG && msg <= WM_WINE_LAST_DRIVER_MSG)
1309 return USER_Driver->pWindowMessage( hwnd, msg, wparam, lparam );
1310 FIXME( "unknown internal message %x\n", msg );
1311 return 0;
1312 }
1313 }
1314
1315 /* since the WM_DDE_ACK response to a WM_DDE_EXECUTE message should contain the handle
1316 * to the memory handle, we keep track (in the server side) of all pairs of handle
1317 * used (the client passes its value and the content of the memory handle), and
1318 * the server stored both values (the client, and the local one, created after the
1319 * content). When a ACK message is generated, the list of pair is searched for a
1320 * matching pair, so that the client memory handle can be returned.
1321 */
1322 struct DDE_pair {
1323 HGLOBAL client_hMem;
1324 HGLOBAL server_hMem;
1325 };
1326
1327 static struct DDE_pair* dde_pairs;
1328 static int dde_num_alloc;
1329 static int dde_num_used;
1330
1331 static CRITICAL_SECTION dde_crst;
1332 static CRITICAL_SECTION_DEBUG critsect_debug =
1333 {
1334 0, 0, &dde_crst,
1335 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
1336 0, 0, { (DWORD_PTR)(__FILE__ ": dde_crst") }
1337 };
1338 static CRITICAL_SECTION dde_crst = { &critsect_debug, -1, 0, 0, 0, 0 };
1339
1340 static BOOL dde_add_pair(HGLOBAL chm, HGLOBAL shm)
1341 {
1342 int i;
1343 #define GROWBY 4
1344
1345 EnterCriticalSection(&dde_crst);
1346
1347 /* now remember the pair of hMem on both sides */
1348 if (dde_num_used == dde_num_alloc)
1349 {
1350 struct DDE_pair* tmp;
1351 if (dde_pairs)
1352 tmp = HeapReAlloc( GetProcessHeap(), 0, dde_pairs,
1353 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1354 else
1355 tmp = HeapAlloc( GetProcessHeap(), 0,
1356 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1357
1358 if (!tmp)
1359 {
1360 LeaveCriticalSection(&dde_crst);
1361 return FALSE;
1362 }
1363 dde_pairs = tmp;
1364 /* zero out newly allocated part */
1365 memset(&dde_pairs[dde_num_alloc], 0, GROWBY * sizeof(struct DDE_pair));
1366 dde_num_alloc += GROWBY;
1367 }
1368 #undef GROWBY
1369 for (i = 0; i < dde_num_alloc; i++)
1370 {
1371 if (dde_pairs[i].server_hMem == 0)
1372 {
1373 dde_pairs[i].client_hMem = chm;
1374 dde_pairs[i].server_hMem = shm;
1375 dde_num_used++;
1376 break;
1377 }
1378 }
1379 LeaveCriticalSection(&dde_crst);
1380 return TRUE;
1381 }
1382
1383 static HGLOBAL dde_get_pair(HGLOBAL shm)
1384 {
1385 int i;
1386 HGLOBAL ret = 0;
1387
1388 EnterCriticalSection(&dde_crst);
1389 for (i = 0; i < dde_num_alloc; i++)
1390 {
1391 if (dde_pairs[i].server_hMem == shm)
1392 {
1393 /* free this pair */
1394 dde_pairs[i].server_hMem = 0;
1395 dde_num_used--;
1396 ret = dde_pairs[i].client_hMem;
1397 break;
1398 }
1399 }
1400 LeaveCriticalSection(&dde_crst);
1401 return ret;
1402 }
1403
1404 /***********************************************************************
1405 * post_dde_message
1406 *
1407 * Post a DDE message
1408 */
1409 static BOOL post_dde_message( struct packed_message *data, const struct send_message_info *info )
1410 {
1411 void* ptr = NULL;
1412 int size = 0;
1413 UINT_PTR uiLo, uiHi;
1414 LPARAM lp = 0;
1415 HGLOBAL hunlock = 0;
1416 int i;
1417 DWORD res;
1418
1419 if (!UnpackDDElParam( info->msg, info->lparam, &uiLo, &uiHi ))
1420 return FALSE;
1421
1422 lp = info->lparam;
1423 switch (info->msg)
1424 {
1425 /* DDE messages which don't require packing are:
1426 * WM_DDE_INITIATE
1427 * WM_DDE_TERMINATE
1428 * WM_DDE_REQUEST
1429 * WM_DDE_UNADVISE
1430 */
1431 case WM_DDE_ACK:
1432 if (HIWORD(uiHi))
1433 {
1434 /* uiHi should contain a hMem from WM_DDE_EXECUTE */
1435 HGLOBAL h = dde_get_pair( (HANDLE)uiHi );
1436 if (h)
1437 {
1438 /* send back the value of h on the other side */
1439 push_data( data, &h, sizeof(HGLOBAL) );
1440 lp = uiLo;
1441 TRACE( "send dde-ack %lx %08lx => %p\n", uiLo, uiHi, h );
1442 }
1443 }
1444 else
1445 {
1446 /* uiHi should contain either an atom or 0 */
1447 TRACE( "send dde-ack %lx atom=%lx\n", uiLo, uiHi );
1448 lp = MAKELONG( uiLo, uiHi );
1449 }
1450 break;
1451 case WM_DDE_ADVISE:
1452 case WM_DDE_DATA:
1453 case WM_DDE_POKE:
1454 size = 0;
1455 if (uiLo)
1456 {
1457 size = GlobalSize( (HGLOBAL)uiLo ) ;
1458 if ((info->msg == WM_DDE_ADVISE && size < sizeof(DDEADVISE)) ||
1459 (info->msg == WM_DDE_DATA && size < FIELD_OFFSET(DDEDATA, Value)) ||
1460 (info->msg == WM_DDE_POKE && size < FIELD_OFFSET(DDEPOKE, Value))
1461 )
1462 return FALSE;
1463 }
1464 else if (info->msg != WM_DDE_DATA) return FALSE;
1465
1466 lp = uiHi;
1467 if (uiLo)
1468 {
1469 if ((ptr = GlobalLock( (HGLOBAL)uiLo) ))
1470 {
1471 DDEDATA *dde_data = ptr;
1472 TRACE("unused %d, fResponse %d, fRelease %d, fDeferUpd %d, fAckReq %d, cfFormat %d\n",
1473 dde_data->unused, dde_data->fResponse, dde_data->fRelease,
1474 dde_data->reserved, dde_data->fAckReq, dde_data->cfFormat);
1475 push_data( data, ptr, size );
1476 hunlock = (HGLOBAL)uiLo;
1477 }
1478 }
1479 TRACE( "send ddepack %u %lx\n", size, uiHi );
1480 break;
1481 case WM_DDE_EXECUTE:
1482 if (info->lparam)
1483 {
1484 if ((ptr = GlobalLock( (HGLOBAL)info->lparam) ))
1485 {
1486 push_data(data, ptr, GlobalSize( (HGLOBAL)info->lparam ));
1487 /* so that the other side can send it back on ACK */
1488 lp = info->lparam;
1489 hunlock = (HGLOBAL)info->lparam;
1490 }
1491 }
1492 break;
1493 }
1494 SERVER_START_REQ( send_message )
1495 {
1496 req->id = info->dest_tid;
1497 req->type = info->type;
1498 req->flags = 0;
1499 req->win = wine_server_user_handle( info->hwnd );
1500 req->msg = info->msg;
1501 req->wparam = info->wparam;
1502 req->lparam = lp;
1503 req->timeout = TIMEOUT_INFINITE;
1504 for (i = 0; i < data->count; i++)
1505 wine_server_add_data( req, data->data[i], data->size[i] );
1506 if ((res = wine_server_call( req )))
1507 {
1508 if (res == STATUS_INVALID_PARAMETER)
1509 /* FIXME: find a STATUS_ value for this one */
1510 SetLastError( ERROR_INVALID_THREAD_ID );
1511 else
1512 SetLastError( RtlNtStatusToDosError(res) );
1513 }
1514 else
1515 FreeDDElParam(info->msg, info->lparam);
1516 }
1517 SERVER_END_REQ;
1518 if (hunlock) GlobalUnlock(hunlock);
1519
1520 return !res;
1521 }
1522
1523 /***********************************************************************
1524 * unpack_dde_message
1525 *
1526 * Unpack a posted DDE message received from another process.
1527 */
1528 static BOOL unpack_dde_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
1529 void **buffer, size_t size )
1530 {
1531 UINT_PTR uiLo, uiHi;
1532 HGLOBAL hMem = 0;
1533 void* ptr;
1534
1535 switch (message)
1536 {
1537 case WM_DDE_ACK:
1538 if (size)
1539 {
1540 /* hMem is being passed */
1541 if (size != sizeof(HGLOBAL)) return FALSE;
1542 if (!buffer || !*buffer) return FALSE;
1543 uiLo = *lparam;
1544 memcpy( &hMem, *buffer, size );
1545 uiHi = (UINT_PTR)hMem;
1546 TRACE("recv dde-ack %lx mem=%lx[%lx]\n", uiLo, uiHi, GlobalSize( hMem ));
1547 }
1548 else
1549 {
1550 uiLo = LOWORD( *lparam );
1551 uiHi = HIWORD( *lparam );
1552 TRACE("recv dde-ack %lx atom=%lx\n", uiLo, uiHi);
1553 }
1554 *lparam = PackDDElParam( WM_DDE_ACK, uiLo, uiHi );
1555 break;
1556 case WM_DDE_ADVISE:
1557 case WM_DDE_DATA:
1558 case WM_DDE_POKE:
1559 if ((!buffer || !*buffer) && message != WM_DDE_DATA) return FALSE;
1560 uiHi = *lparam;
1561 if (size)
1562 {
1563 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size )))
1564 return FALSE;
1565 if ((ptr = GlobalLock( hMem )))
1566 {
1567 memcpy( ptr, *buffer, size );
1568 GlobalUnlock( hMem );
1569 }
1570 else
1571 {
1572 GlobalFree( hMem );
1573 return FALSE;
1574 }
1575 }
1576 uiLo = (UINT_PTR)hMem;
1577
1578 *lparam = PackDDElParam( message, uiLo, uiHi );
1579 break;
1580 case WM_DDE_EXECUTE:
1581 if (size)
1582 {
1583 if (!buffer || !*buffer) return FALSE;
1584 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size ))) return FALSE;
1585 if ((ptr = GlobalLock( hMem )))
1586 {
1587 memcpy( ptr, *buffer, size );
1588 GlobalUnlock( hMem );
1589 TRACE( "exec: pairing c=%08lx s=%p\n", *lparam, hMem );
1590 if (!dde_add_pair( (HGLOBAL)*lparam, hMem ))
1591 {
1592 GlobalFree( hMem );
1593 return FALSE;
1594 }
1595 }
1596 else
1597 {
1598 GlobalFree( hMem );
1599 return FALSE;
1600 }
1601 } else return FALSE;
1602 *lparam = (LPARAM)hMem;
1603 break;
1604 }
1605 return TRUE;
1606 }
1607
1608 /***********************************************************************
1609 * call_window_proc
1610 *
1611 * Call a window procedure and the corresponding hooks.
1612 */
1613 static LRESULT call_window_proc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
1614 BOOL unicode, BOOL same_thread, enum wm_char_mapping mapping )
1615 {
1616 LRESULT result = 0;
1617 CWPSTRUCT cwp;
1618 CWPRETSTRUCT cwpret;
1619
1620 if (msg & 0x80000000)
1621 {
1622 result = handle_internal_message( hwnd, msg, wparam, lparam );
1623 goto done;
1624 }
1625
1626 /* first the WH_CALLWNDPROC hook */
1627 hwnd = WIN_GetFullHandle( hwnd );
1628 cwp.lParam = lparam;
1629 cwp.wParam = wparam;
1630 cwp.message = msg;
1631 cwp.hwnd = hwnd;
1632 HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, same_thread, (LPARAM)&cwp, unicode );
1633
1634 /* now call the window procedure */
1635 if (!WINPROC_call_window( hwnd, msg, wparam, lparam, &result, unicode, mapping )) goto done;
1636
1637 /* and finally the WH_CALLWNDPROCRET hook */
1638 cwpret.lResult = result;
1639 cwpret.lParam = lparam;
1640 cwpret.wParam = wparam;
1641 cwpret.message = msg;
1642 cwpret.hwnd = hwnd;
1643 HOOK_CallHooks( WH_CALLWNDPROCRET, HC_ACTION, same_thread, (LPARAM)&cwpret, unicode );
1644 done:
1645 return result;
1646 }
1647
1648
1649 /***********************************************************************
1650 * send_parent_notify
1651 *
1652 * Send a WM_PARENTNOTIFY to all ancestors of the given window, unless
1653 * the window has the WS_EX_NOPARENTNOTIFY style.
1654 */
1655 static void send_parent_notify( HWND hwnd, WORD event, WORD idChild, POINT pt )
1656 {
1657 /* pt has to be in the client coordinates of the parent window */
1658 MapWindowPoints( 0, hwnd, &pt, 1 );
1659 for (;;)
1660 {
1661 HWND parent;
1662
1663 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) break;
1664 if (GetWindowLongW( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) break;
1665 if (!(parent = GetParent(hwnd))) break;
1666 if (parent == GetDesktopWindow()) break;
1667 MapWindowPoints( hwnd, parent, &pt, 1 );
1668 hwnd = parent;
1669 SendMessageW( hwnd, WM_PARENTNOTIFY,
1670 MAKEWPARAM( event, idChild ), MAKELPARAM( pt.x, pt.y ) );
1671 }
1672 }
1673
1674
1675 /***********************************************************************
1676 * accept_hardware_message
1677 *
1678 * Tell the server we have passed the message to the app
1679 * (even though we may end up dropping it later on)
1680 */
1681 static void accept_hardware_message( UINT hw_id, BOOL remove, HWND new_hwnd )
1682 {
1683 SERVER_START_REQ( accept_hardware_message )
1684 {
1685 req->hw_id = hw_id;
1686 req->remove = remove;
1687 req->new_win = wine_server_user_handle( new_hwnd );
1688 if (wine_server_call( req ))
1689 FIXME("Failed to reply to MSG_HARDWARE message. Message may not be removed from queue.\n");
1690 }
1691 SERVER_END_REQ;
1692 }
1693
1694
1695 /***********************************************************************
1696 * process_keyboard_message
1697 *
1698 * returns TRUE if the contents of 'msg' should be passed to the application
1699 */
1700 static BOOL process_keyboard_message( MSG *msg, UINT hw_id, HWND hwnd_filter,
1701 UINT first, UINT last, BOOL remove )
1702 {
1703 EVENTMSG event;
1704
1705 if (msg->message == WM_KEYDOWN || msg->message == WM_SYSKEYDOWN ||
1706 msg->message == WM_KEYUP || msg->message == WM_SYSKEYUP)
1707 switch (msg->wParam)
1708 {
1709 case VK_LSHIFT: case VK_RSHIFT:
1710 msg->wParam = VK_SHIFT;
1711 break;
1712 case VK_LCONTROL: case VK_RCONTROL:
1713 msg->wParam = VK_CONTROL;
1714 break;
1715 case VK_LMENU: case VK_RMENU:
1716 msg->wParam = VK_MENU;
1717 break;
1718 }
1719
1720 /* FIXME: is this really the right place for this hook? */
1721 event.message = msg->message;
1722 event.hwnd = msg->hwnd;
1723 event.time = msg->time;
1724 event.paramL = (msg->wParam & 0xFF) | (HIWORD(msg->lParam) << 8);
1725 event.paramH = msg->lParam & 0x7FFF;
1726 if (HIWORD(msg->lParam) & 0x0100) event.paramH |= 0x8000; /* special_key - bit */
1727 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1728
1729 /* check message filters */
1730 if (msg->message < first || msg->message > last) return FALSE;
1731 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1732
1733 if (remove)
1734 {
1735 if((msg->message == WM_KEYDOWN) &&
1736 (msg->hwnd != GetDesktopWindow()))
1737 {
1738 /* Handle F1 key by sending out WM_HELP message */
1739 if (msg->wParam == VK_F1)
1740 {
1741 PostMessageW( msg->hwnd, WM_KEYF1, 0, 0 );
1742 }
1743 else if(msg->wParam >= VK_BROWSER_BACK &&
1744 msg->wParam <= VK_LAUNCH_APP2)
1745 {
1746 /* FIXME: Process keystate */
1747 SendMessageW(msg->hwnd, WM_APPCOMMAND, (WPARAM)msg->hwnd, MAKELPARAM(0, (FAPPCOMMAND_KEY | (msg->wParam - VK_BROWSER_BACK + 1))));
1748 }
1749 }
1750 else if (msg->message == WM_KEYUP)
1751 {
1752 /* Handle VK_APPS key by posting a WM_CONTEXTMENU message */
1753 if (msg->wParam == VK_APPS && !MENU_IsMenuActive())
1754 PostMessageW(msg->hwnd, WM_CONTEXTMENU, (WPARAM)msg->hwnd, (LPARAM)-1);
1755 }
1756 }
1757
1758 if (HOOK_CallHooks( WH_KEYBOARD, remove ? HC_ACTION : HC_NOREMOVE,
1759 LOWORD(msg->wParam), msg->lParam, TRUE ))
1760 {
1761 /* skip this message */
1762 HOOK_CallHooks( WH_CBT, HCBT_KEYSKIPPED, LOWORD(msg->wParam), msg->lParam, TRUE );
1763 accept_hardware_message( hw_id, TRUE, 0 );
1764 return FALSE;
1765 }
1766 accept_hardware_message( hw_id, remove, 0 );
1767
1768 if ( msg->message == WM_KEYDOWN || msg->message == WM_KEYUP )
1769 if ( ImmProcessKey(msg->hwnd, GetKeyboardLayout(0), msg->wParam, msg->lParam, 0) )
1770 msg->wParam = VK_PROCESSKEY;
1771
1772 return TRUE;
1773 }
1774
1775
1776 /***********************************************************************
1777 * process_mouse_message
1778 *
1779 * returns TRUE if the contents of 'msg' should be passed to the application
1780 */
1781 static BOOL process_mouse_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1782 UINT first, UINT last, BOOL remove )
1783 {
1784 static MSG clk_msg;
1785
1786 POINT pt;
1787 UINT message;
1788 INT hittest;
1789 EVENTMSG event;
1790 GUITHREADINFO info;
1791 MOUSEHOOKSTRUCT hook;
1792 BOOL eatMsg;
1793
1794 /* find the window to dispatch this mouse message to */
1795
1796 GetGUIThreadInfo( GetCurrentThreadId(), &info );
1797 if (info.hwndCapture)
1798 {
1799 hittest = HTCLIENT;
1800 msg->hwnd = info.hwndCapture;
1801 }
1802 else
1803 {
1804 msg->hwnd = WINPOS_WindowFromPoint( msg->hwnd, msg->pt, &hittest );
1805 }
1806
1807 if (!msg->hwnd || !WIN_IsCurrentThread( msg->hwnd ))
1808 {
1809 accept_hardware_message( hw_id, TRUE, msg->hwnd );
1810 return FALSE;
1811 }
1812
1813 /* FIXME: is this really the right place for this hook? */
1814 event.message = msg->message;
1815 event.time = msg->time;
1816 event.hwnd = msg->hwnd;
1817 event.paramL = msg->pt.x;
1818 event.paramH = msg->pt.y;
1819 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1820
1821 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1822
1823 pt = msg->pt;
1824 message = msg->message;
1825 /* Note: windows has no concept of a non-client wheel message */
1826 if (message != WM_MOUSEWHEEL)
1827 {
1828 if (hittest != HTCLIENT)
1829 {
1830 message += WM_NCMOUSEMOVE - WM_MOUSEMOVE;
1831 msg->wParam = hittest;
1832 }
1833 else
1834 {
1835 /* coordinates don't get translated while tracking a menu */
1836 /* FIXME: should differentiate popups and top-level menus */
1837 if (!(info.flags & GUI_INMENUMODE))
1838 ScreenToClient( msg->hwnd, &pt );
1839 }
1840 }
1841 msg->lParam = MAKELONG( pt.x, pt.y );
1842
1843 /* translate double clicks */
1844
1845 if ((msg->message == WM_LBUTTONDOWN) ||
1846 (msg->message == WM_RBUTTONDOWN) ||
1847 (msg->message == WM_MBUTTONDOWN) ||
1848 (msg->message == WM_XBUTTONDOWN))
1849 {
1850 BOOL update = remove;
1851
1852 /* translate double clicks -
1853 * note that ...MOUSEMOVEs can slip in between
1854 * ...BUTTONDOWN and ...BUTTONDBLCLK messages */
1855
1856 if ((info.flags & (GUI_INMENUMODE|GUI_INMOVESIZE)) ||
1857 hittest != HTCLIENT ||
1858 (GetClassLongA( msg->hwnd, GCL_STYLE ) & CS_DBLCLKS))
1859 {
1860 if ((msg->message == clk_msg.message) &&
1861 (msg->hwnd == clk_msg.hwnd) &&
1862 (msg->wParam == clk_msg.wParam) &&
1863 (msg->time - clk_msg.time < GetDoubleClickTime()) &&
1864 (abs(msg->pt.x - clk_msg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
1865 (abs(msg->pt.y - clk_msg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
1866 {
1867 message += (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
1868 if (update)
1869 {
1870 clk_msg.message = 0; /* clear the double click conditions */
1871 update = FALSE;
1872 }
1873 }
1874 }
1875 if (message < first || message > last) return FALSE;
1876 /* update static double click conditions */
1877 if (update) clk_msg = *msg;
1878 }
1879 else
1880 {
1881 if (message < first || message > last) return FALSE;
1882 }
1883
1884 /* message is accepted now (but may still get dropped) */
1885
1886 hook.pt = msg->pt;
1887 hook.hwnd = msg->hwnd;
1888 hook.wHitTestCode = hittest;
1889 hook.dwExtraInfo = extra_info;
1890 if (HOOK_CallHooks( WH_MOUSE, remove ? HC_ACTION : HC_NOREMOVE,
1891 message, (LPARAM)&hook, TRUE ))
1892 {
1893 hook.pt = msg->pt;
1894 hook.hwnd = msg->hwnd;
1895 hook.wHitTestCode = hittest;
1896 hook.dwExtraInfo = extra_info;
1897 HOOK_CallHooks( WH_CBT, HCBT_CLICKSKIPPED, message, (LPARAM)&hook, TRUE );
1898 accept_hardware_message( hw_id, TRUE, 0 );
1899 return FALSE;
1900 }
1901
1902 if ((hittest == HTERROR) || (hittest == HTNOWHERE))
1903 {
1904 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd,
1905 MAKELONG( hittest, msg->message ));
1906 accept_hardware_message( hw_id, TRUE, 0 );
1907 return FALSE;
1908 }
1909
1910 accept_hardware_message( hw_id, remove, 0 );
1911
1912 if (!remove || info.hwndCapture)
1913 {
1914 msg->message = message;
1915 return TRUE;
1916 }
1917
1918 eatMsg = FALSE;
1919
1920 if ((msg->message == WM_LBUTTONDOWN) ||
1921 (msg->message == WM_RBUTTONDOWN) ||
1922 (msg->message == WM_MBUTTONDOWN) ||
1923 (msg->message == WM_XBUTTONDOWN))
1924 {
1925 /* Send the WM_PARENTNOTIFY,
1926 * note that even for double/nonclient clicks
1927 * notification message is still WM_L/M/RBUTTONDOWN.
1928 */
1929 send_parent_notify( msg->hwnd, msg->message, 0, msg->pt );
1930
1931 /* Activate the window if needed */
1932
1933 if (msg->hwnd != info.hwndActive)
1934 {
1935 HWND hwndTop = msg->hwnd;
1936 while (hwndTop)
1937 {
1938 if ((GetWindowLongW( hwndTop, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) != WS_CHILD) break;
1939 hwndTop = GetParent( hwndTop );
1940 }
1941
1942 if (hwndTop && hwndTop != GetDesktopWindow())
1943 {
1944 LONG ret = SendMessageW( msg->hwnd, WM_MOUSEACTIVATE, (WPARAM)hwndTop,
1945 MAKELONG( hittest, msg->message ) );
1946 switch(ret)
1947 {
1948 case MA_NOACTIVATEANDEAT:
1949 eatMsg = TRUE;
1950 /* fall through */
1951 case MA_NOACTIVATE:
1952 break;
1953 case MA_ACTIVATEANDEAT:
1954 eatMsg = TRUE;
1955 /* fall through */
1956 case MA_ACTIVATE:
1957 case 0:
1958 if (!FOCUS_MouseActivate( hwndTop )) eatMsg = TRUE;
1959 break;
1960 default:
1961 WARN( "unknown WM_MOUSEACTIVATE code %d\n", ret );
1962 break;
1963 }
1964 }
1965 }
1966 }
1967
1968 /* send the WM_SETCURSOR message */
1969
1970 /* Windows sends the normal mouse message as the message parameter
1971 in the WM_SETCURSOR message even if it's non-client mouse message */
1972 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd, MAKELONG( hittest, msg->message ));
1973
1974 msg->message = message;
1975 return !eatMsg;
1976 }
1977
1978
1979 /***********************************************************************
1980 * process_hardware_message
1981 *
1982 * Process a hardware message; return TRUE if message should be passed on to the app
1983 */
1984 static BOOL process_hardware_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1985 UINT first, UINT last, BOOL remove )
1986 {
1987 if (is_keyboard_message( msg->message ))
1988 return process_keyboard_message( msg, hw_id, hwnd_filter, first, last, remove );
1989
1990 if (is_mouse_message( msg->message ))
1991 return process_mouse_message( msg, hw_id, extra_info, hwnd_filter, first, last, remove );
1992
1993 ERR( "unknown message type %x\n", msg->message );
1994 return FALSE;
1995 }
1996
1997
1998 /***********************************************************************
1999 * call_sendmsg_callback
2000 *
2001 * Call the callback function of SendMessageCallback.
2002 */
2003 static inline void call_sendmsg_callback( SENDASYNCPROC callback, HWND hwnd, UINT msg,
2004 ULONG_PTR data, LRESULT result )
2005 {
2006 if (!callback) return;
2007
2008 if (TRACE_ON(relay))
2009 DPRINTF( "%04x:Call message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
2010 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
2011 data, result );
2012 callback( hwnd, msg, data, result );
2013 if (TRACE_ON(relay))
2014 DPRINTF( "%04x:Ret message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
2015 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
2016 data, result );
2017 }
2018
2019
2020 /***********************************************************************
2021 * peek_message
2022 *
2023 * Peek for a message matching the given parameters. Return FALSE if none available.
2024 * All pending sent messages are processed before returning.
2025 */
2026 static BOOL peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags, UINT changed_mask )
2027 {
2028 LRESULT result;
2029 struct user_thread_info *thread_info = get_user_thread_info();
2030 struct received_message_info info, *old_info;
2031 unsigned int hw_id = 0; /* id of previous hardware message */
2032 void *buffer;
2033 size_t buffer_size = 256;
2034
2035 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, buffer_size ))) return FALSE;
2036
2037 if (!first && !last) last = ~0;
2038 if (hwnd == HWND_BROADCAST || hwnd == HWND_TOPMOST || hwnd == HWND_BOTTOM)
2039 hwnd = (HWND)-1;
2040
2041 for (;;)
2042 {
2043 NTSTATUS res;
2044 size_t size = 0;
2045 const message_data_t *msg_data = buffer;
2046
2047 SERVER_START_REQ( get_message )
2048 {
2049 req->flags = flags;
2050 req->get_win = wine_server_user_handle( hwnd );
2051 req->get_first = first;
2052 req->get_last = last;
2053 req->hw_id = hw_id;
2054 req->wake_mask = changed_mask & (QS_SENDMESSAGE | QS_SMRESULT);
2055 req->changed_mask = changed_mask;
2056 wine_server_set_reply( req, buffer, buffer_size );
2057 if (!(res = wine_server_call( req )))
2058 {
2059 size = wine_server_reply_size( reply );
2060 info.type = reply->type;
2061 info.msg.hwnd = wine_server_ptr_handle( reply->win );
2062 info.msg.message = reply->msg;
2063 info.msg.wParam = reply->wparam;
2064 info.msg.lParam = reply->lparam;
2065 info.msg.time = reply->time;
2066 info.msg.pt.x = 0;
2067 info.msg.pt.y = 0;
2068 hw_id = 0;
2069 thread_info->active_hooks = reply->active_hooks;
2070 }
2071 else buffer_size = reply->total;
2072 }
2073 SERVER_END_REQ;
2074
2075 if (res)
2076 {
2077 HeapFree( GetProcessHeap(), 0, buffer );
2078 if (res != STATUS_BUFFER_OVERFLOW) return FALSE;
2079 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, buffer_size ))) return FALSE;
2080 continue;
2081 }
2082
2083 TRACE( "got type %d msg %x (%s) hwnd %p wp %lx lp %lx\n",
2084 info.type, info.msg.message,
2085 (info.type == MSG_WINEVENT) ? "MSG_WINEVENT" : SPY_GetMsgName(info.msg.message, info.msg.hwnd),
2086 info.msg.hwnd, info.msg.wParam, info.msg.lParam );
2087
2088 switch(info.type)
2089 {
2090 case MSG_ASCII:
2091 case MSG_UNICODE:
2092 info.flags = ISMEX_SEND;
2093 break;
2094 case MSG_NOTIFY:
2095 info.flags = ISMEX_NOTIFY;
2096 break;
2097 case MSG_CALLBACK:
2098 info.flags = ISMEX_CALLBACK;
2099 break;
2100 case MSG_CALLBACK_RESULT:
2101 if (size >= sizeof(msg_data->callback))
2102 call_sendmsg_callback( wine_server_get_ptr(msg_data->callback.callback),
2103 info.msg.hwnd, info.msg.message,
2104 msg_data->callback.data, msg_data->callback.result );
2105 continue;
2106 case MSG_WINEVENT:
2107 if (size >= sizeof(msg_data->winevent))
2108 {
2109 WINEVENTPROC hook_proc;
2110
2111 hook_proc = wine_server_get_ptr( msg_data->winevent.hook_proc );
2112 size -= sizeof(msg_data->winevent);
2113 if (size)
2114 {
2115 WCHAR module[MAX_PATH];
2116
2117 size = min( size, (MAX_PATH - 1) * sizeof(WCHAR) );
2118 memcpy( module, &msg_data->winevent + 1, size );
2119 module[size / sizeof(WCHAR)] = 0;
2120 if (!(hook_proc = get_hook_proc( hook_proc, module )))
2121 {
2122 ERR( "invalid winevent hook module name %s\n", debugstr_w(module) );
2123 continue;
2124 }
2125 }
2126
2127 if (TRACE_ON(relay))
2128 DPRINTF( "%04x:Call winevent proc %p (hook=%04x,event=%x,hwnd=%p,object_id=%lx,child_id=%lx,tid=%04x,time=%x)\n",
2129 GetCurrentThreadId(), hook_proc,
2130 msg_data->winevent.hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2131 info.msg.lParam, msg_data->winevent.tid, info.msg.time);
2132
2133 hook_proc( wine_server_ptr_handle( msg_data->winevent.hook ), info.msg.message,
2134 info.msg.hwnd, info.msg.wParam, info.msg.lParam,
2135 msg_data->winevent.tid, info.msg.time );
2136
2137 if (TRACE_ON(relay))
2138 DPRINTF( "%04x:Ret winevent proc %p (hook=%04x,event=%x,hwnd=%p,object_id=%lx,child_id=%lx,tid=%04x,time=%x)\n",
2139 GetCurrentThreadId(), hook_proc,
2140 msg_data->winevent.hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2141 info.msg.lParam, msg_data->winevent.tid, info.msg.time);
2142 }
2143 continue;
2144 case MSG_OTHER_PROCESS:
2145 info.flags = ISMEX_SEND;
2146 if (!unpack_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2147 &info.msg.lParam, &buffer, size ))
2148 {
2149 /* ignore it */
2150 reply_message( &info, 0, TRUE );
2151 continue;
2152 }
2153 break;
2154 case MSG_HARDWARE:
2155 if (size >= sizeof(msg_data->hardware))
2156 {
2157 info.msg.pt.x = msg_data->hardware.x;
2158 info.msg.pt.y = msg_data->hardware.y;
2159 hw_id = msg_data->hardware.hw_id;
2160 if (!process_hardware_message( &info.msg, hw_id, msg_data->hardware.info,
2161 hwnd, first, last, flags & PM_REMOVE ))
2162 {
2163 TRACE("dropping msg %x\n", info.msg.message );
2164 continue; /* ignore it */
2165 }
2166 *msg = info.msg;
2167 thread_info->GetMessagePosVal = MAKELONG( info.msg.pt.x, info.msg.pt.y );
2168 thread_info->GetMessageTimeVal = info.msg.time;
2169 thread_info->GetMessageExtraInfoVal = msg_data->hardware.info;
2170 HeapFree( GetProcessHeap(), 0, buffer );
2171 HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, flags & PM_REMOVE, (LPARAM)msg, TRUE );
2172 return TRUE;
2173 }
2174 continue;
2175 case MSG_POSTED:
2176 if (info.msg.message & 0x80000000) /* internal message */
2177 {
2178 if (flags & PM_REMOVE)
2179 {
2180 handle_internal_message( info.msg.hwnd, info.msg.message,
2181 info.msg.wParam, info.msg.lParam );
2182 /* if this is a nested call return right away */
2183 if (first == info.msg.message && last == info.msg.message) return FALSE;
2184 }
2185 else
2186 peek_message( msg, info.msg.hwnd, info.msg.message,
2187 info.msg.message, flags | PM_REMOVE, changed_mask );
2188 continue;
2189 }
2190 if (info.msg.message >= WM_DDE_FIRST && info.msg.message <= WM_DDE_LAST)
2191 {
2192 if (!unpack_dde_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2193 &info.msg.lParam, &buffer, size ))
2194 continue; /* ignore it */
2195 }
2196 *msg = info.msg;
2197 msg->pt.x = (short)LOWORD( thread_info->GetMessagePosVal );
2198 msg->pt.y = (short)HIWORD( thread_info->GetMessagePosVal );
2199 thread_info->GetMessageTimeVal = info.msg.time;
2200 thread_info->GetMessageExtraInfoVal = 0;
2201 HeapFree( GetProcessHeap(), 0, buffer );
2202 HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, flags & PM_REMOVE, (LPARAM)msg, TRUE );
2203 return TRUE;
2204 }
2205
2206 /* if we get here, we have a sent message; call the window procedure */
2207 old_info = thread_info->receive_info;
2208 thread_info->receive_info = &info;
2209 result = call_window_proc( info.msg.hwnd, info.msg.message, info.msg.wParam,
2210 info.msg.lParam, (info.type != MSG_ASCII), FALSE,
2211 WMCHAR_MAP_RECVMESSAGE );
2212 reply_message( &info, result, TRUE );
2213 thread_info->receive_info = old_info;
2214
2215 /* if some PM_QS* flags were specified, only handle sent messages from now on */
2216 if (HIWORD(flags) && !changed_mask) flags = PM_QS_SENDMESSAGE | LOWORD(flags);
2217 }
2218 }
2219
2220
2221 /***********************************************************************
2222 * process_sent_messages
2223 *
2224 * Process all pending sent messages.
2225 */
2226 static inline void process_sent_messages(void)
2227 {
2228 MSG msg;
2229 peek_message( &msg, 0, 0, 0, PM_REMOVE | PM_QS_SENDMESSAGE, 0 );
2230 }
2231
2232
2233 /***********************************************************************
2234 * get_server_queue_handle
2235 *
2236 * Get a handle to the server message queue for the current thread.
2237 */
2238 static HANDLE get_server_queue_handle(void)
2239 {
2240 struct user_thread_info *thread_info = get_user_thread_info();
2241 HANDLE ret;
2242
2243 if (!(ret = thread_info->server_queue))
2244 {
2245 SERVER_START_REQ( get_msg_queue )
2246 {
2247 wine_server_call( req );
2248 ret = wine_server_ptr_handle( reply->handle );
2249 }
2250 SERVER_END_REQ;
2251 thread_info->server_queue = ret;
2252 if (!ret) ERR( "Cannot get server thread queue\n" );
2253 }
2254 return ret;
2255 }
2256
2257
2258 /***********************************************************************
2259 * wait_message_reply
2260 *
2261 * Wait until a sent message gets replied to.
2262 */
2263 static void wait_message_reply( UINT flags )
2264 {
2265 HANDLE server_queue = get_server_queue_handle();
2266
2267 for (;;)
2268 {
2269 unsigned int wake_bits = 0;
2270 DWORD dwlc, res;
2271
2272 SERVER_START_REQ( set_queue_mask )
2273 {
2274 req->wake_mask = QS_SMRESULT | ((flags & SMTO_BLOCK) ? 0 : QS_SENDMESSAGE);
2275 req->changed_mask = req->wake_mask;
2276 req->skip_wait = 1;
2277 if (!wine_server_call( req ))
2278 wake_bits = reply->wake_bits;
2279 }
2280 SERVER_END_REQ;
2281
2282 if (wake_bits & QS_SMRESULT) return; /* got a result */
2283 if (wake_bits & QS_SENDMESSAGE)
2284 {
2285 /* Process the sent message immediately */
2286 process_sent_messages();
2287 continue;
2288 }
2289
2290 /* now wait for it */
2291
2292 ReleaseThunkLock( &dwlc );
2293 res = USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue,
2294 INFINITE, QS_SENDMESSAGE, 0 );
2295 if (dwlc) RestoreThunkLock( dwlc );
2296 }
2297 }
2298
2299 /***********************************************************************
2300 * put_message_in_queue
2301 *
2302 * Put a sent message into the destination queue.
2303 * For inter-process message, reply_size is set to expected size of reply data.
2304 */
2305 static BOOL put_message_in_queue( const struct send_message_info *info, size_t *reply_size )
2306 {
2307 struct packed_message data;
2308 message_data_t msg_data;
2309 unsigned int res;
2310 int i;
2311 timeout_t timeout = TIMEOUT_INFINITE;
2312
2313 /* Check for INFINITE timeout for compatibility with Win9x,
2314 * although Windows >= NT does not do so
2315 */
2316 if (info->type != MSG_NOTIFY &&
2317 info->type != MSG_CALLBACK &&
2318 info->type != MSG_POSTED &&
2319 info->timeout &&
2320 info->timeout != INFINITE)
2321 {
2322 /* timeout is signed despite the prototype */
2323 timeout = (timeout_t)max( 0, (int)info->timeout ) * -10000;
2324 }
2325
2326 data.count = 0;
2327 if (info->type == MSG_OTHER_PROCESS)
2328 {
2329 *reply_size = pack_message( info->hwnd, info->msg, info->wparam, info->lparam, &data );
2330 if (data.count == -1)
2331 {
2332 WARN( "cannot pack message %x\n", info->msg );
2333 return FALSE;
2334 }
2335 }
2336 else if (info->type == MSG_CALLBACK)
2337 {
2338 msg_data.callback.callback = wine_server_client_ptr( info->callback );
2339 msg_data.callback.data = info->data;
2340 msg_data.callback.result = 0;
2341 data.data[0] = &msg_data;
2342 data.size[0] = sizeof(msg_data.callback);
2343 data.count = 1;
2344 }
2345 else if (info->type == MSG_POSTED && info->msg >= WM_DDE_FIRST && info->msg <= WM_DDE_LAST)
2346 {
2347 return post_dde_message( &data, info );
2348 }
2349
2350 SERVER_START_REQ( send_message )
2351 {
2352 req->id = info->dest_tid;
2353 req->type = info->type;
2354 req->flags = 0;
2355 req->win = wine_server_user_handle( info->hwnd );
2356 req->msg = info->msg;
2357 req->wparam = info->wparam;
2358 req->lparam = info->lparam;
2359 req->timeout = timeout;
2360
2361 if (info->flags & SMTO_ABORTIFHUNG) req->flags |= SEND_MSG_ABORT_IF_HUNG;
2362 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
2363 if ((res = wine_server_call( req )))
2364 {
2365 if (res == STATUS_INVALID_PARAMETER)
2366 /* FIXME: find a STATUS_ value for this one */
2367 SetLastError( ERROR_INVALID_THREAD_ID );
2368 else
2369 SetLastError( RtlNtStatusToDosError(res) );
2370 }
2371 }
2372 SERVER_END_REQ;
2373 return !res;
2374 }
2375
2376
2377 /***********************************************************************
2378 * retrieve_reply
2379 *
2380 * Retrieve a message reply from the server.
2381 */
2382 static LRESULT retrieve_reply( const struct send_message_info *info,
2383 size_t reply_size, LRESULT *result )
2384 {
2385 NTSTATUS status;
2386 void *reply_data = NULL;
2387
2388 if (reply_size)
2389 {
2390 if (!(reply_data = HeapAlloc( GetProcessHeap(), 0, reply_size )))
2391 {
2392 WARN( "no memory for reply, will be truncated\n" );
2393 reply_size = 0;
2394 }
2395 }
2396 SERVER_START_REQ( get_message_reply )
2397 {
2398 req->cancel = 1;
2399 if (reply_size) wine_server_set_reply( req, reply_data, reply_size );
2400 if (!(status = wine_server_call( req ))) *result = reply->result;
2401 reply_size = wine_server_reply_size( reply );
2402 }
2403 SERVER_END_REQ;
2404 if (!status && reply_size)
2405 unpack_reply( info->hwnd, info->msg, info->wparam, info->lparam, reply_data, reply_size );
2406
2407 HeapFree( GetProcessHeap(), 0, reply_data );
2408
2409 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx got reply %lx (err=%d)\n",
2410 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam,
2411 info->lparam, *result, status );
2412
2413 /* MSDN states that last error is 0 on timeout, but at least NT4 returns ERROR_TIMEOUT */
2414 if (status) SetLastError( RtlNtStatusToDosError(status) );
2415 return !status;
2416 }
2417
2418
2419 /***********************************************************************
2420 * send_inter_thread_message
2421 */
2422 static LRESULT send_inter_thread_message( const struct send_message_info *info, LRESULT *res_ptr )
2423 {
2424 size_t reply_size = 0;
2425
2426 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx\n",
2427 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam, info->lparam );
2428
2429 USER_CheckNotLock();
2430
2431 if (!put_message_in_queue( info, &reply_size )) return 0;
2432
2433 /* there's no reply to wait for on notify/callback messages */
2434 if (info->type == MSG_NOTIFY || info->type == MSG_CALLBACK) return 1;
2435
2436 wait_message_reply( info->flags );
2437 return retrieve_reply( info, reply_size, res_ptr );
2438 }
2439
2440
2441 /***********************************************************************
2442 * send_inter_thread_callback
2443 */
2444 static LRESULT send_inter_thread_callback( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
2445 LRESULT *result, void *arg )
2446 {
2447 struct send_message_info *info = arg;
2448 info->hwnd = hwnd;
2449 info->msg = msg;
2450 info->wparam = wp;
2451 info->lparam = lp;
2452 return send_inter_thread_message( info, result );
2453 }
2454
2455
2456 /***********************************************************************
2457 * send_message
2458 *
2459 * Backend implementation of the various SendMessage functions.
2460 */
2461 static BOOL send_message( struct send_message_info *info, DWORD_PTR *res_ptr, BOOL unicode )
2462 {
2463 DWORD dest_pid;
2464 BOOL ret;
2465 LRESULT result;
2466
2467 if (is_broadcast(info->hwnd))
2468 {
2469 EnumWindows( broadcast_message_callback, (LPARAM)info );
2470 if (res_ptr) *res_ptr = 1;
2471 return TRUE;
2472 }
2473
2474 if (!(info->dest_tid = GetWindowThreadProcessId( info->hwnd, &dest_pid ))) return FALSE;
2475
2476 if (USER_IsExitingThread( info->dest_tid )) return FALSE;
2477
2478 SPY_EnterMessage( SPY_SENDMESSAGE, info->hwnd, info->msg, info->wparam, info->lparam );
2479
2480 if (info->dest_tid == GetCurrentThreadId())
2481 {
2482 result = call_window_proc( info->hwnd, info->msg, info->wparam, info->lparam,
2483 unicode, TRUE, info->wm_char );
2484 if (info->type == MSG_CALLBACK)
2485 call_sendmsg_callback( info->callback, info->hwnd, info->msg, info->data, result );
2486 ret = TRUE;
2487 }
2488 else
2489 {
2490 if (dest_pid != GetCurrentProcessId() && (info->type == MSG_ASCII || info->type == MSG_UNICODE))
2491 info->type = MSG_OTHER_PROCESS;
2492
2493 /* MSG_ASCII can be sent unconverted except for WM_CHAR; everything else needs to be Unicode */
2494 if (!unicode && is_unicode_message( info->msg ) &&
2495 (info->type != MSG_ASCII || info->msg == WM_CHAR))
2496 ret = WINPROC_CallProcAtoW( send_inter_thread_callback, info->hwnd, info->msg,
2497 info->wparam, info->lparam, &result, info, info->wm_char );
2498 else
2499 ret = send_inter_thread_message( info, &result );
2500 }
2501
2502 SPY_ExitMessage( SPY_RESULT_OK, info->hwnd, info->msg, result, info->wparam, info->lparam );
2503 if (ret && res_ptr) *res_ptr = result;
2504 return ret;
2505 }
2506
2507
2508 /***********************************************************************
2509 * MSG_SendInternalMessageTimeout
2510 *
2511 * Same as SendMessageTimeoutW but sends the message to a specific thread
2512 * without requiring a window handle. Only works for internal Wine messages.
2513 */
2514 LRESULT MSG_SendInternalMessageTimeout( DWORD dest_pid, DWORD dest_tid,
2515 UINT msg, WPARAM wparam, LPARAM lparam,
2516 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2517 {
2518 struct send_message_info info;
2519 LRESULT ret, result;
2520
2521 assert( msg & 0x80000000 ); /* must be an internal Wine message */
2522
2523 info.type = MSG_UNICODE;
2524 info.dest_tid = dest_tid;
2525 info.hwnd = 0;
2526 info.msg = msg;
2527 info.wparam = wparam;
2528 info.lparam = lparam;
2529 info.flags = flags;
2530 info.timeout = timeout;
2531
2532 if (USER_IsExitingThread( dest_tid )) return 0;
2533
2534 if (dest_tid == GetCurrentThreadId())
2535 {
2536 result = handle_internal_message( 0, msg, wparam, lparam );
2537 ret = 1;
2538 }
2539 else
2540 {
2541 if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
2542 ret = send_inter_thread_message( &info, &result );
2543 }
2544 if (ret && res_ptr) *res_ptr = result;
2545 return ret;
2546 }
2547
2548
2549 /***********************************************************************
2550 * SendMessageTimeoutW (USER32.@)
2551 */
2552 LRESULT WINAPI SendMessageTimeoutW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2553 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2554 {
2555 struct send_message_info info;
2556
2557 info.type = MSG_UNICODE;
2558 info.hwnd = hwnd;
2559 info.msg = msg;
2560 info.wparam = wparam;
2561 info.lparam = lparam;
2562 info.flags = flags;
2563 info.timeout = timeout;
2564
2565 return send_message( &info, res_ptr, TRUE );
2566 }
2567
2568 /***********************************************************************
2569 * SendMessageTimeoutA (USER32.@)
2570 */
2571 LRESULT WINAPI SendMessageTimeoutA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2572 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2573 {
2574 struct send_message_info info;
2575
2576 info.type = MSG_ASCII;
2577 info.hwnd = hwnd;
2578 info.msg = msg;
2579 info.wparam = wparam;
2580 info.lparam = lparam;
2581 info.flags = flags;
2582 info.timeout = timeout;
2583 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2584
2585 return send_message( &info, res_ptr, FALSE );
2586 }
2587
2588
2589 /***********************************************************************
2590 * SendMessageW (USER32.@)
2591 */
2592 LRESULT WINAPI SendMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2593 {
2594 DWORD_PTR res = 0;
2595 struct send_message_info info;
2596
2597 info.type = MSG_UNICODE;
2598 info.hwnd = hwnd;
2599 info.msg = msg;
2600 info.wparam = wparam;
2601 info.lparam = lparam;
2602 info.flags = SMTO_NORMAL;
2603 info.timeout = 0;
2604
2605 send_message( &info, &res, TRUE );
2606 return res;
2607 }
2608
2609
2610 /***********************************************************************
2611 * SendMessageA (USER32.@)
2612 */
2613 LRESULT WINAPI SendMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2614 {
2615 DWORD_PTR res = 0;
2616 struct send_message_info info;
2617
2618 info.type = MSG_ASCII;
2619 info.hwnd = hwnd;
2620 info.msg = msg;
2621 info.wparam = wparam;
2622 info.lparam = lparam;
2623 info.flags = SMTO_NORMAL;
2624 info.timeout = 0;
2625 info.wm_char = WMCHAR_MAP_SENDMESSAGE;
2626
2627 send_message( &info, &res, FALSE );
2628 return res;
2629 }
2630
2631
2632 /***********************************************************************
2633 * SendNotifyMessageA (USER32.@)
2634 */
2635 BOOL WINAPI SendNotifyMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2636 {
2637 struct send_message_info info;
2638
2639 if (is_pointer_message(msg))
2640 {
2641 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2642 return FALSE;
2643 }
2644
2645 info.type = MSG_NOTIFY;
2646 info.hwnd = hwnd;
2647 info.msg = msg;
2648 info.wparam = wparam;
2649 info.lparam = lparam;
2650 info.flags = 0;
2651 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2652
2653 return send_message( &info, NULL, FALSE );
2654 }
2655
2656
2657 /***********************************************************************
2658 * SendNotifyMessageW (USER32.@)
2659 */
2660 BOOL WINAPI SendNotifyMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2661 {
2662 struct send_message_info info;
2663
2664 if (is_pointer_message(msg))
2665 {
2666 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2667 return FALSE;
2668 }
2669
2670 info.type = MSG_NOTIFY;
2671 info.hwnd = hwnd;
2672 info.msg = msg;
2673 info.wparam = wparam;
2674 info.lparam = lparam;
2675 info.flags = 0;
2676
2677 return send_message( &info, NULL, TRUE );
2678 }
2679
2680
2681 /***********************************************************************
2682 * SendMessageCallbackA (USER32.@)
2683 */
2684 BOOL WINAPI SendMessageCallbackA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2685 SENDASYNCPROC callback, ULONG_PTR data )
2686 {
2687 struct send_message_info info;
2688
2689 if (is_pointer_message(msg))
2690 {
2691 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2692 return FALSE;
2693 }
2694
2695 info.type = MSG_CALLBACK;
2696 info.hwnd = hwnd;
2697 info.msg = msg;
2698 info.wparam = wparam;
2699 info.lparam = lparam;
2700 info.callback = callback;
2701 info.data = data;
2702 info.flags = 0;
2703 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2704
2705 return send_message( &info, NULL, FALSE );
2706 }
2707
2708
2709 /***********************************************************************
2710 * SendMessageCallbackW (USER32.@)
2711 */
2712 BOOL WINAPI SendMessageCallbackW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2713 SENDASYNCPROC callback, ULONG_PTR data )
2714 {
2715 struct send_message_info info;
2716
2717 if (is_pointer_message(msg))
2718 {
2719 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2720 return FALSE;
2721 }
2722
2723 info.type = MSG_CALLBACK;
2724 info.hwnd = hwnd;
2725 info.msg = msg;
2726 info.wparam = wparam;
2727 info.lparam = lparam;
2728 info.callback = callback;
2729 info.data = data;
2730 info.flags = 0;
2731
2732 return send_message( &info, NULL, TRUE );
2733 }
2734
2735
2736 /***********************************************************************
2737 * ReplyMessage (USER32.@)
2738 */
2739 BOOL WINAPI ReplyMessage( LRESULT result )
2740 {
2741 struct received_message_info *info = get_user_thread_info()->receive_info;
2742
2743 if (!info) return FALSE;
2744 reply_message( info, result, FALSE );
2745 return TRUE;
2746 }
2747
2748
2749 /***********************************************************************
2750 * InSendMessage (USER32.@)
2751 */
2752 BOOL WINAPI InSendMessage(void)
2753 {
2754 return (InSendMessageEx(NULL) & (ISMEX_SEND|ISMEX_REPLIED)) == ISMEX_SEND;
2755 }
2756
2757
2758 /***********************************************************************
2759 * InSendMessageEx (USER32.@)
2760 */
2761 DWORD WINAPI InSendMessageEx( LPVOID reserved )
2762 {
2763 struct received_message_info *info = get_user_thread_info()->receive_info;
2764
2765 if (info) return info->flags;
2766 return ISMEX_NOSEND;
2767 }
2768
2769
2770 /***********************************************************************
2771 * PostMessageA (USER32.@)
2772 */
2773 BOOL WINAPI PostMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2774 {
2775 if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_POSTMESSAGE )) return TRUE;
2776 return PostMessageW( hwnd, msg, wparam, lparam );
2777 }
2778
2779
2780 /***********************************************************************
2781 * PostMessageW (USER32.@)
2782 */
2783 BOOL WINAPI PostMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2784 {
2785 struct send_message_info info;
2786
2787 if (is_pointer_message( msg ))
2788 {
2789 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2790 return FALSE;
2791 }
2792
2793 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx\n",
2794 hwnd, msg, SPY_GetMsgName(msg, hwnd), wparam, lparam );
2795
2796 info.type = MSG_POSTED;
2797 info.hwnd = hwnd;
2798 info.msg = msg;
2799 info.wparam = wparam;
2800 info.lparam = lparam;
2801 info.flags = 0;
2802
2803 if (is_broadcast(hwnd))
2804 {
2805 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2806 return TRUE;
2807 }
2808
2809 if (!hwnd) return PostThreadMessageW( GetCurrentThreadId(), msg, wparam, lparam );
2810
2811 if (!(info.dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2812
2813 if (USER_IsExitingThread( info.dest_tid )) return TRUE;
2814
2815 return put_message_in_queue( &info, NULL );
2816 }
2817
2818
2819 /**********************************************************************
2820 * PostThreadMessageA (USER32.@)
2821 */
2822 BOOL WINAPI PostThreadMessageA( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2823 {
2824 if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_POSTMESSAGE )) return TRUE;
2825 return PostThreadMessageW( thread, msg, wparam, lparam );
2826 }
2827
2828
2829 /**********************************************************************
2830 * PostThreadMessageW (USER32.@)
2831 */
2832 BOOL WINAPI PostThreadMessageW( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2833 {
2834 struct send_message_info info;
2835
2836 if (is_pointer_message( msg ))
2837 {
2838 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2839 return FALSE;
2840 }
2841 if (USER_IsExitingThread( thread )) return TRUE;
2842
2843 info.type = MSG_POSTED;
2844 info.dest_tid = thread;
2845 info.hwnd = 0;
2846 info.msg = msg;
2847 info.wparam = wparam;
2848 info.lparam = lparam;
2849 info.flags = 0;
2850 return put_message_in_queue( &info, NULL );
2851 }
2852
2853
2854 /***********************************************************************
2855 * PostQuitMessage (USER32.@)
2856 *
2857 * Posts a quit message to the current thread's message queue.
2858 *
2859 * PARAMS
2860 * exit_code [I] Exit code to return from message loop.
2861 *
2862 * RETURNS
2863 * Nothing.
2864 *
2865 * NOTES
2866 * This function is not the same as calling:
2867 *|PostThreadMessage(GetCurrentThreadId(), WM_QUIT, exit_code, 0);
2868 * It instead sets a flag in the message queue that signals it to generate
2869 * a WM_QUIT message when there are no other pending sent or posted messages
2870 * in the queue.
2871 */
2872 void WINAPI PostQuitMessage( INT exit_code )
2873 {
2874 SERVER_START_REQ( post_quit_message )
2875 {
2876 req->exit_code = exit_code;
2877 wine_server_call( req );
2878 }
2879 SERVER_END_REQ;
2880 }
2881
2882
2883 /***********************************************************************
2884 * PeekMessageW (USER32.@)
2885 */
2886 BOOL WINAPI PeekMessageW( MSG *msg_out, HWND hwnd, UINT first, UINT last, UINT flags )
2887 {
2888 MSG msg;
2889
2890 USER_CheckNotLock();
2891
2892 /* check for graphics events */
2893 USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
2894
2895 if (!peek_message( &msg, hwnd, first, last, flags, 0 ))
2896 {
2897 if (!(flags & PM_NOYIELD))
2898 {
2899 DWORD count;
2900 ReleaseThunkLock(&count);
2901 NtYieldExecution();
2902 if (count) RestoreThunkLock(count);
2903 }
2904 return FALSE;
2905 }
2906
2907 /* copy back our internal safe copy of message data to msg_out.
2908 * msg_out is a variable from the *program*, so it can't be used
2909 * internally as it can get "corrupted" by our use of SendMessage()
2910 * (back to the program) inside the message handling itself. */
2911 if (!msg_out)
2912 {
2913 SetLastError( ERROR_NOACCESS );
2914 return FALSE;
2915 }
2916 *msg_out = msg;
2917 return TRUE;
2918 }
2919
2920
2921 /***********************************************************************
2922 * PeekMessageA (USER32.@)
2923 */
2924 BOOL WINAPI PeekMessageA( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
2925 {
2926 if (get_pending_wmchar( msg, first, last, (flags & PM_REMOVE) )) return TRUE;
2927 if (!PeekMessageW( msg, hwnd, first, last, flags )) return FALSE;
2928 map_wparam_WtoA( msg, (flags & PM_REMOVE) );
2929 return TRUE;
2930 }
2931
2932
2933 /***********************************************************************
2934 * GetMessageW (USER32.@)
2935 */
2936 BOOL WINAPI GetMessageW( MSG *msg, HWND hwnd, UINT first, UINT last )
2937 {
2938 HANDLE server_queue = get_server_queue_handle();
2939 unsigned int mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
2940
2941 USER_CheckNotLock();
2942
2943 /* check for graphics events */
2944 USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
2945
2946 if (first || last)
2947 {
2948 if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
2949 if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
2950 ((first <= WM_NCMOUSELAST) && (last >= WM_NCMOUSEFIRST)) ) mask |= QS_MOUSE;
2951 if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER;
2952 if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER;
2953 if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT;
2954 }
2955 else mask = QS_ALLINPUT;
2956
2957 while (!peek_message( msg, hwnd, first, last, PM_REMOVE | (mask << 16), mask ))
2958 {
2959 DWORD dwlc;
2960
2961 ReleaseThunkLock( &dwlc );
2962 USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue, INFINITE, mask, 0 );
2963 if (dwlc) RestoreThunkLock( dwlc );
2964 }
2965
2966 return (msg->message != WM_QUIT);
2967 }
2968
2969
2970 /***********************************************************************
2971 * GetMessageA (USER32.@)
2972 */
2973 BOOL WINAPI GetMessageA( MSG *msg, HWND hwnd, UINT first, UINT last )
2974 {
2975 if (get_pending_wmchar( msg, first, last, TRUE )) return TRUE;
2976 GetMessageW( msg, hwnd, first, last );
2977 map_wparam_WtoA( msg, TRUE );
2978 return (msg->message != WM_QUIT);
2979 }
2980
2981
2982 /***********************************************************************
2983 * IsDialogMessageA (USER32.@)
2984 * IsDialogMessage (USER32.@)
2985 */
2986 BOOL WINAPI IsDialogMessageA( HWND hwndDlg, LPMSG pmsg )
2987 {
2988 MSG msg = *pmsg;
2989 map_wparam_AtoW( msg.message, &msg.wParam, WMCHAR_MAP_NOMAPPING );
2990 return IsDialogMessageW( hwndDlg, &msg );
2991 }
2992
2993
2994 /***********************************************************************
2995 * TranslateMessage (USER32.@)
2996 *
2997 * Implementation of TranslateMessage.
2998 *
2999 * TranslateMessage translates virtual-key messages into character-messages,
3000 * as follows :
3001 * WM_KEYDOWN/WM_KEYUP combinations produce a WM_CHAR or WM_DEADCHAR message.
3002 * ditto replacing WM_* with WM_SYS*
3003 * This produces WM_CHAR messages only for keys mapped to ASCII characters
3004 * by the keyboard driver.
3005 *
3006 * If the message is WM_KEYDOWN, WM_KEYUP, WM_SYSKEYDOWN, or WM_SYSKEYUP, the
3007 * return value is nonzero, regardless of the translation.
3008 *
3009 */
3010 BOOL WINAPI TranslateMessage( const MSG *msg )
3011 {
3012 UINT message;
3013 WCHAR wp[2];
3014 BYTE state[256];
3015
3016 if (msg->message < WM_KEYFIRST || msg->message > WM_KEYLAST) return FALSE;
3017 if (msg->message != WM_KEYDOWN && msg->message != WM_SYSKEYDOWN) return TRUE;
3018
3019 TRACE_(key)("Translating key %s (%04lx), scancode %04x\n",
3020 SPY_GetVKeyName(msg->wParam), msg->wParam, HIWORD(msg->lParam));
3021
3022 switch (msg->wParam)
3023 {
3024 case VK_PACKET:
3025 message = (msg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
3026 TRACE_(key)("PostMessageW(%p,%s,%04x,%08x)\n",
3027 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), HIWORD(msg->lParam), LOWORD(msg->lParam));
3028 PostMessageW( msg->hwnd, message, HIWORD(msg->lParam), LOWORD(msg->lParam));
3029 return TRUE;
3030
3031 case VK_PROCESSKEY:
3032 return ImmTranslateMessage(msg->hwnd, msg->message, msg->wParam, msg->lParam);
3033 }
3034
3035 GetKeyboardState( state );
3036 /* FIXME : should handle ToUnicode yielding 2 */
3037 switch (ToUnicode(msg->wParam, HIWORD(msg->lParam), state, wp, 2, 0))
3038 {
3039 case 1:
3040 message = (msg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
3041 TRACE_(key)("1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
3042 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
3043 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
3044 break;
3045
3046 case -1:
3047 message = (msg->message == WM_KEYDOWN) ? WM_DEADCHAR : WM_SYSDEADCHAR;
3048 TRACE_(key)("-1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
3049 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
3050 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
3051 break;
3052 }
3053 return TRUE;
3054 }
3055
3056
3057 /***********************************************************************
3058 * DispatchMessageA (USER32.@)
3059 *
3060 * See DispatchMessageW.
3061 */
3062 LRESULT WINAPI DECLSPEC_HOTPATCH DispatchMessageA( const MSG* msg )
3063 {
3064 LRESULT retval;
3065
3066 /* Process timer messages */
3067 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
3068 {
3069 if (msg->lParam)
3070 {
3071 __TRY
3072 {
3073 retval = CallWindowProcA( (WNDPROC)msg->lParam, msg->hwnd,
3074 msg->message, msg->wParam, GetTickCount() );
3075 }
3076 __EXCEPT_PAGE_FAULT
3077 {
3078 retval = 0;
3079 }
3080 __ENDTRY
3081 return retval;
3082 }
3083 }
3084 if (!msg->hwnd) return 0;
3085
3086 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
3087 msg->wParam, msg->lParam );
3088
3089 if (!WINPROC_call_window( msg->hwnd, msg->message, msg->wParam, msg->lParam,
3090 &retval, FALSE, WMCHAR_MAP_DISPATCHMESSAGE ))
3091 {
3092 if (!IsWindow( msg->hwnd )) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
3093 else SetLastError( ERROR_MESSAGE_SYNC_ONLY );
3094 retval = 0;
3095 }
3096
3097 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
3098 msg->wParam, msg->lParam );
3099
3100 if (msg->message == WM_PAINT)
3101 {
3102 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
3103 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
3104 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
3105 DeleteObject( hrgn );
3106 }
3107 return retval;
3108 }
3109
3110
3111 /***********************************************************************
3112 * DispatchMessageW (USER32.@) Process a message
3113 *
3114 * Process the message specified in the structure *_msg_.
3115 *
3116 * If the lpMsg parameter points to a WM_TIMER message and the
3117 * parameter of the WM_TIMER message is not NULL, the lParam parameter
3118 * points to the function that is called instead of the window
3119 * procedure. The function stored in lParam (timer callback) is protected
3120 * from causing page-faults.
3121 *
3122 * The message must be valid.
3123 *
3124 * RETURNS
3125 *
3126 * DispatchMessage() returns the result of the window procedure invoked.
3127 *
3128 * CONFORMANCE
3129 *
3130 * ECMA-234, Win32
3131 *
3132 */
3133 LRESULT WINAPI DECLSPEC_HOTPATCH DispatchMessageW( const MSG* msg )
3134 {
3135 LRESULT retval;
3136
3137 /* Process timer messages */
3138 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
3139 {
3140 if (msg->lParam)
3141 {
3142 __TRY
3143 {
3144 retval = CallWindowProcW( (WNDPROC)msg->lParam, msg->hwnd,
3145 msg->message, msg->wParam, GetTickCount() );
3146 }
3147 __EXCEPT_PAGE_FAULT
3148 {
3149 retval = 0;
3150 }
3151 __ENDTRY
3152 return retval;
3153 }
3154 }
3155 if (!msg->hwnd) return 0;
3156
3157 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
3158 msg->wParam, msg->lParam );
3159
3160 if (!WINPROC_call_window( msg->hwnd, msg->message, msg->wParam, msg->lParam,
3161 &retval, TRUE, WMCHAR_MAP_DISPATCHMESSAGE ))
3162 {
3163 if (!IsWindow( msg->hwnd )) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
3164 else SetLastError( ERROR_MESSAGE_SYNC_ONLY );
3165 retval = 0;
3166 }
3167
3168 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
3169 msg->wParam, msg->lParam );
3170
3171 if (msg->message == WM_PAINT)
3172 {
3173 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
3174 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
3175 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
3176 DeleteObject( hrgn );
3177 }
3178 return retval;
3179 }
3180
3181
3182 /***********************************************************************
3183 * GetMessagePos (USER.119)
3184 * GetMessagePos (USER32.@)
3185 *
3186 * The GetMessagePos() function returns a long value representing a
3187 * cursor position, in screen coordinates, when the last message
3188 * retrieved by the GetMessage() function occurs. The x-coordinate is
3189 * in the low-order word of the return value, the y-coordinate is in
3190 * the high-order word. The application can use the MAKEPOINT()
3191 * macro to obtain a POINT structure from the return value.
3192 *
3193 * For the current cursor position, use GetCursorPos().
3194 *
3195 * RETURNS
3196 *
3197 * Cursor position of last message on success, zero on failure.
3198 *
3199 * CONFORMANCE
3200 *
3201 * ECMA-234, Win32
3202 *
3203 */
3204 DWORD WINAPI GetMessagePos(void)
3205 {
3206 return get_user_thread_info()->GetMessagePosVal;
3207 }
3208
3209
3210 /***********************************************************************
3211 * GetMessageTime (USER.120)
3212 * GetMessageTime (USER32.@)
3213 *
3214 * GetMessageTime() returns the message time for the last message
3215 * retrieved by the function. The time is measured in milliseconds with
3216 * the same offset as GetTickCount().
3217 *
3218 * Since the tick count wraps, this is only useful for moderately short
3219 * relative time comparisons.
3220 *
3221 * RETURNS
3222 *
3223 * Time of last message on success, zero on failure.
3224 */
3225 LONG WINAPI GetMessageTime(void)
3226 {
3227 return get_user_thread_info()->GetMessageTimeVal;
3228 }
3229
3230
3231 /***********************************************************************
3232 * GetMessageExtraInfo (USER.288)
3233 * GetMessageExtraInfo (USER32.@)
3234 */
3235 LPARAM WINAPI GetMessageExtraInfo(void)
3236 {
3237 return get_user_thread_info()->GetMessageExtraInfoVal;
3238 }
3239
3240
3241 /***********************************************************************
3242 * SetMessageExtraInfo (USER32.@)
3243 */
3244 LPARAM WINAPI SetMessageExtraInfo(LPARAM lParam)
3245 {
3246 struct user_thread_info *thread_info = get_user_thread_info();
3247 LONG old_value = thread_info->GetMessageExtraInfoVal;
3248 thread_info->GetMessageExtraInfoVal = lParam;
3249 return old_value;
3250 }
3251
3252
3253 /***********************************************************************
3254 * WaitMessage (USER.112) Suspend thread pending messages
3255 * WaitMessage (USER32.@) Suspend thread pending messages
3256 *
3257 * WaitMessage() suspends a thread until events appear in the thread's
3258 * queue.
3259 */
3260 BOOL WINAPI WaitMessage(void)
3261 {
3262 return (MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, QS_ALLINPUT, 0 ) != WAIT_FAILED);
3263 }
3264
3265
3266 /***********************************************************************
3267 * MsgWaitForMultipleObjectsEx (USER32.@)
3268 */
3269 DWORD WINAPI MsgWaitForMultipleObjectsEx( DWORD count, CONST HANDLE *pHandles,
3270 DWORD timeout, DWORD mask, DWORD flags )
3271 {
3272 HANDLE handles[MAXIMUM_WAIT_OBJECTS];
3273 DWORD i, ret, lock;
3274
3275 if (count > MAXIMUM_WAIT_OBJECTS-1)
3276 {
3277 SetLastError( ERROR_INVALID_PARAMETER );
3278 return WAIT_FAILED;
3279 }
3280
3281 /* set the queue mask */
3282 SERVER_START_REQ( set_queue_mask )
3283 {
3284 req->wake_mask = (flags & MWMO_INPUTAVAILABLE) ? mask : 0;
3285 req->changed_mask = mask;
3286 req->skip_wait = 0;
3287 wine_server_call( req );
3288 }
3289 SERVER_END_REQ;
3290
3291 /* add the queue to the handle list */
3292 for (i = 0; i < count; i++) handles[i] = pHandles[i];
3293 handles[count] = get_server_queue_handle();
3294
3295 ReleaseThunkLock( &lock );
3296 ret = USER_Driver->pMsgWaitForMultipleObjectsEx( count+1, handles, timeout, mask, flags );
3297 if (lock) RestoreThunkLock( lock );
3298 return ret;
3299 }
3300
3301
3302 /***********************************************************************
3303 * MsgWaitForMultipleObjects (USER32.@)
3304 */
3305 DWORD WINAPI MsgWaitForMultipleObjects( DWORD count, CONST HANDLE *handles,
3306 BOOL wait_all, DWORD timeout, DWORD mask )
3307 {
3308 return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
3309 wait_all ? MWMO_WAITALL : 0 );
3310 }
3311
3312
3313 /***********************************************************************
3314 * WaitForInputIdle (USER32.@)
3315 */
3316 DWORD WINAPI WaitForInputIdle( HANDLE hProcess, DWORD dwTimeOut )
3317 {
3318 DWORD start_time, elapsed, ret;
3319 HANDLE handles[2];
3320
3321 handles[0] = hProcess;
3322 SERVER_START_REQ( get_process_idle_event )
3323 {
3324 req->handle = wine_server_obj_handle( hProcess );
3325 if (!(ret = wine_server_call_err( req )))
3326 handles[1] = wine_server_ptr_handle( reply->event );
3327 }
3328 SERVER_END_REQ;
3329 if (ret) return WAIT_FAILED; /* error */
3330 if (!handles[1]) return 0; /* no event to wait on */
3331
3332 start_time = GetTickCount();
3333 elapsed = 0;
3334
3335 TRACE("waiting for %p\n", handles[1] );
3336 do
3337 {
3338 ret = MsgWaitForMultipleObjects ( 2, handles, FALSE, dwTimeOut - elapsed, QS_SENDMESSAGE );
3339 switch (ret)
3340 {
3341 case WAIT_OBJECT_0:
3342 return WAIT_FAILED;
3343 case WAIT_OBJECT_0+2:
3344 process_sent_messages();
3345 break;
3346 case WAIT_TIMEOUT:
3347 case WAIT_FAILED:
3348 TRACE("timeout or error\n");
3349 return ret;
3350 default:
3351 TRACE("finished\n");
3352 return 0;
3353 }
3354 if (dwTimeOut != INFINITE)
3355 {
3356 elapsed = GetTickCount() - start_time;
3357 if (elapsed > dwTimeOut)
3358 break;
3359 }
3360 }
3361 while (1);
3362
3363 return WAIT_TIMEOUT;
3364 }
3365
3366
3367 /***********************************************************************
3368 * RegisterWindowMessageA (USER32.@)
3369 * RegisterWindowMessage (USER.118)
3370 */
3371 UINT WINAPI RegisterWindowMessageA( LPCSTR str )
3372 {
3373 UINT ret = GlobalAddAtomA(str);
3374 TRACE("%s, ret=%x\n", str, ret);
3375 return ret;
3376 }
3377
3378
3379 /***********************************************************************
3380 * RegisterWindowMessageW (USER32.@)
3381 */
3382 UINT WINAPI RegisterWindowMessageW( LPCWSTR str )
3383 {
3384 UINT ret = GlobalAddAtomW(str);
3385 TRACE("%s ret=%x\n", debugstr_w(str), ret);
3386 return ret;
3387 }
3388
3389 typedef struct BroadcastParm
3390 {
3391 DWORD flags;
3392 LPDWORD recipients;
3393 UINT msg;
3394 WPARAM wp;
3395 LPARAM lp;
3396 DWORD success;
3397 HWINSTA winsta;
3398 } BroadcastParm;
3399
3400 static BOOL CALLBACK bcast_childwindow( HWND hw, LPARAM lp )
3401 {
3402 BroadcastParm *parm = (BroadcastParm*)lp;
3403 DWORD_PTR retval = 0;
3404 LRESULT lresult;
3405
3406 if (parm->flags & BSF_IGNORECURRENTTASK && WIN_IsCurrentProcess(hw))
3407 {
3408 TRACE("Not telling myself %p\n", hw);
3409 return TRUE;
3410 }
3411
3412 /* I don't know 100% for sure if this is what Windows does, but it fits the tests */
3413 if (parm->flags & BSF_QUERY)
3414 {
3415 TRACE("Telling window %p using SendMessageTimeout\n", hw);
3416
3417 /* Not tested for conflicting flags */
3418 if (parm->flags & BSF_FORCEIFHUNG || parm->flags & BSF_NOHANG)
3419 lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_ABORTIFHUNG, 2000, &retval );
3420 else if (parm->flags & BSF_NOTIMEOUTIFNOTHUNG)
3421 lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_NOTIMEOUTIFNOTHUNG, 2000, &retval );
3422 else
3423 lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_NORMAL, 2000, &retval );
3424
3425 if (!lresult && GetLastError() == ERROR_TIMEOUT)
3426 {
3427 WARN("Timed out!\n");
3428 if (!(parm->flags & BSF_FORCEIFHUNG))
3429 goto fail;
3430 }
3431 if (retval == BROADCAST_QUERY_DENY)
3432 goto fail;
3433
3434 return TRUE;
3435
3436 fail:
3437 parm->success = 0;
3438 return FALSE;
3439 }
3440 else if (parm->flags & BSF_POSTMESSAGE)
3441 {
3442 TRACE("Telling window %p using PostMessage\n", hw);
3443 PostMessageW( hw, parm->msg, parm->wp, parm->lp );
3444 }
3445 else
3446 {
3447 TRACE("Telling window %p using SendNotifyMessage\n", hw);
3448 SendNotifyMessageW( hw, parm->msg, parm->wp, parm->lp );
3449 }
3450
3451 return TRUE;
3452 }
3453
3454 static BOOL CALLBACK bcast_desktop( LPWSTR desktop, LPARAM lp )
3455 {
3456 BOOL ret;
3457 HDESK hdesktop;
3458 BroadcastParm *parm = (BroadcastParm*)lp;
3459
3460 TRACE("desktop: %s\n", debugstr_w( desktop ));
3461
3462 hdesktop = open_winstation_desktop( parm->winsta, desktop, 0, FALSE, DESKTOP_ENUMERATE|DESKTOP_WRITEOBJECTS|STANDARD_RIGHTS_WRITE );
3463 if (!hdesktop)
3464 {
3465 FIXME("Could not open desktop %s\n", debugstr_w(desktop));
3466 return TRUE;
3467 }
3468
3469 ret = EnumDesktopWindows( hdesktop, bcast_childwindow, lp );
3470 CloseDesktop(hdesktop);
3471 TRACE("-->%d\n", ret);
3472 return parm->success;
3473 }
3474
3475 static BOOL CALLBACK bcast_winsta( LPWSTR winsta, LPARAM lp )
3476 {
3477 BOOL ret;
3478 HWINSTA hwinsta = OpenWindowStationW( winsta, FALSE, WINSTA_ENUMDESKTOPS );
3479 TRACE("hwinsta: %p/%s/%08x\n", hwinsta, debugstr_w( winsta ), GetLastError());
3480 if (!hwinsta)
3481 return TRUE;
3482 ((BroadcastParm *)lp)->winsta = hwinsta;
3483 ret = EnumDesktopsW( hwinsta, bcast_desktop, lp );
3484 CloseWindowStation( hwinsta );
3485 TRACE("-->%d\n", ret);
3486 return ret;
3487 }
3488
3489 /***********************************************************************
3490 * BroadcastSystemMessageA (USER32.@)
3491 * BroadcastSystemMessage (USER32.@)
3492 */
3493 LONG WINAPI BroadcastSystemMessageA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3494 {
3495 return BroadcastSystemMessageExA( flags, recipients, msg, wp, lp, NULL );
3496 }
3497
3498
3499 /***********************************************************************
3500 * BroadcastSystemMessageW (USER32.@)
3501 */
3502 LONG WINAPI BroadcastSystemMessageW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3503 {
3504 return BroadcastSystemMessageExW( flags, recipients, msg, wp, lp, NULL );
3505 }
3506
3507 /***********************************************************************
3508 * BroadcastSystemMessageExA (USER32.@)
3509 */
3510 LONG WINAPI BroadcastSystemMessageExA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp, PBSMINFO pinfo )
3511 {
3512 map_wparam_AtoW( msg, &wp, WMCHAR_MAP_NOMAPPING );
3513 return BroadcastSystemMessageExW( flags, recipients, msg, wp, lp, NULL );
3514 }
3515
3516
3517 /***********************************************************************
3518 * BroadcastSystemMessageExW (USER32.@)
3519 */
3520 LONG WINAPI BroadcastSystemMessageExW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp, PBSMINFO pinfo )
3521 {
3522 BroadcastParm parm;
3523 DWORD recips = BSM_ALLCOMPONENTS;
3524 BOOL ret = TRUE;
3525 static const DWORD all_flags = ( BSF_QUERY | BSF_IGNORECURRENTTASK | BSF_FLUSHDISK | BSF_NOHANG
3526 | BSF_POSTMESSAGE | BSF_FORCEIFHUNG | BSF_NOTIMEOUTIFNOTHUNG
3527 | BSF_ALLOWSFW | BSF_SENDNOTIFYMESSAGE | BSF_RETURNHDESK | BSF_LUID );
3528
3529 TRACE("Flags: %08x, recipients: %p(0x%x), msg: %04x, wparam: %08lx, lparam: %08lx\n", flags, recipients,
3530 (recipients ? *recipients : recips), msg, wp, lp);
3531
3532 if (flags & ~all_flags)
3533 {
3534 SetLastError(ERROR_INVALID_PARAMETER);
3535 return 0;
3536 }
3537
3538 if (!recipients)
3539 recipients = &recips;
3540
3541 if ( pinfo && flags & BSF_QUERY )
3542 FIXME("Not returning PBSMINFO information yet\n");
3543
3544 parm.flags = flags;
3545 parm.recipients = recipients;
3546 parm.msg = msg;
3547 parm.wp = wp;
3548 parm.lp = lp;
3549 parm.success = TRUE;
3550
3551 if (*recipients & BSM_ALLDESKTOPS || *recipients == BSM_ALLCOMPONENTS)
3552 ret = EnumWindowStationsW(bcast_winsta, (LONG_PTR)&parm);
3553 else if (*recipients & BSM_APPLICATIONS)
3554 {
3555 EnumWindows(bcast_childwindow, (LONG_PTR)&parm);
3556 ret = parm.success;
3557 }
3558 else
3559 FIXME("Recipients %08x not supported!\n", *recipients);
3560
3561 return ret;
3562 }
3563
3564 /***********************************************************************
3565 * SetMessageQueue (USER32.@)
3566 */
3567 BOOL WINAPI SetMessageQueue( INT size )
3568 {
3569 /* now obsolete the message queue will be expanded dynamically as necessary */
3570 return TRUE;
3571 }
3572
3573
3574 /***********************************************************************
3575 * MessageBeep (USER32.@)
3576 */
3577 BOOL WINAPI MessageBeep( UINT i )
3578 {
3579 BOOL active = TRUE;
3580 SystemParametersInfoA( SPI_GETBEEP, 0, &active, FALSE );
3581 if (active) USER_Driver->pBeep();
3582 return TRUE;
3583 }
3584
3585
3586 /***********************************************************************
3587 * SetTimer (USER32.@)
3588 */
3589 UINT_PTR WINAPI SetTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3590 {
3591 UINT_PTR ret;
3592 WNDPROC winproc = 0;
3593
3594 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, NULL );
3595
3596 SERVER_START_REQ( set_win_timer )
3597 {
3598 req->win = wine_server_user_handle( hwnd );
3599 req->msg = WM_TIMER;
3600 req->id = id;
3601 req->rate = max( timeout, SYS_TIMER_RATE );
3602 req->lparam = (ULONG_PTR)winproc;
3603 if (!wine_server_call_err( req ))
3604 {
3605 ret = reply->id;
3606 if (!ret) ret = TRUE;
3607 }
3608 else ret = 0;
3609 }
3610 SERVER_END_REQ;
3611
3612 TRACE("Added %p %lx %p timeout %d\n", hwnd, id, winproc, timeout );
3613 return ret;
3614 }
3615
3616
3617 /***********************************************************************
3618 * SetSystemTimer (USER32.@)
3619 */
3620 UINT_PTR WINAPI SetSystemTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3621 {
3622 UINT_PTR ret;
3623 WNDPROC winproc = 0;
3624
3625 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, NULL );
3626
3627 SERVER_START_REQ( set_win_timer )
3628 {
3629 req->win = wine_server_user_handle( hwnd );
3630 req->msg = WM_SYSTIMER;
3631 req->id = id;
3632 req->rate = max( timeout, SYS_TIMER_RATE );
3633 req->lparam = (ULONG_PTR)winproc;
3634 if (!wine_server_call_err( req ))
3635 {
3636 ret = reply->id;
3637 if (!ret) ret = TRUE;
3638 }
3639 else ret = 0;
3640 }
3641 SERVER_END_REQ;
3642
3643 TRACE("Added %p %lx %p timeout %d\n", hwnd, id, winproc, timeout );
3644 return ret;
3645 }
3646
3647
3648 /***********************************************************************
3649 * KillTimer (USER32.@)
3650 */
3651 BOOL WINAPI KillTimer( HWND hwnd, UINT_PTR id )
3652 {
3653 BOOL ret;
3654
3655 SERVER_START_REQ( kill_win_timer )
3656 {
3657 req->win = wine_server_user_handle( hwnd );
3658 req->msg = WM_TIMER;
3659 req->id = id;
3660 ret = !wine_server_call_err( req );
3661 }
3662 SERVER_END_REQ;
3663 return ret;
3664 }
3665
3666
3667 /***********************************************************************
3668 * KillSystemTimer (USER32.@)
3669 */
3670 BOOL WINAPI KillSystemTimer( HWND hwnd, UINT_PTR id )
3671 {
3672 BOOL ret;
3673
3674 SERVER_START_REQ( kill_win_timer )
3675 {
3676 req->win = wine_server_user_handle( hwnd );
3677 req->msg = WM_SYSTIMER;
3678 req->id = id;
3679 ret = !wine_server_call_err( req );
3680 }
3681 SERVER_END_REQ;
3682 return ret;
3683 }
3684
3685
3686 /**********************************************************************
3687 * GetGUIThreadInfo (USER32.@)
3688 */
3689 BOOL WINAPI GetGUIThreadInfo( DWORD id, GUITHREADINFO *info )
3690 {
3691 BOOL ret;
3692
3693 SERVER_START_REQ( get_thread_input )
3694 {
3695 req->tid = id;
3696 if ((ret = !wine_server_call_err( req )))
3697 {
3698 info->flags = 0;
3699 info->hwndActive = wine_server_ptr_handle( reply->active );
3700 info->hwndFocus = wine_server_ptr_handle( reply->focus );
3701 info->hwndCapture = wine_server_ptr_handle( reply->capture );
3702 info->hwndMenuOwner = wine_server_ptr_handle( reply->menu_owner );
3703 info->hwndMoveSize = wine_server_ptr_handle( reply->move_size );
3704 info->hwndCaret = wine_server_ptr_handle( reply->caret );
3705 info->rcCaret.left = reply->rect.left;
3706 info->rcCaret.top = reply->rect.top;
3707 info->rcCaret.right = reply->rect.right;
3708 info->rcCaret.bottom = reply->rect.bottom;
3709 if (reply->menu_owner) info->flags |= GUI_INMENUMODE;
3710 if (reply->move_size) info->flags |= GUI_INMOVESIZE;
3711 if (reply->caret) info->flags |= GUI_CARETBLINKING;
3712 }
3713 }
3714 SERVER_END_REQ;
3715 return ret;
3716 }
3717
3718
3719 /******************************************************************
3720 * IsHungAppWindow (USER32.@)
3721 *
3722 */
3723 BOOL WINAPI IsHungAppWindow( HWND hWnd )
3724 {
3725 BOOL ret;
3726
3727 SERVER_START_REQ( is_window_hung )
3728 {
3729 req->win = wine_server_user_handle( hWnd );
3730 ret = !wine_server_call_err( req ) && reply->is_hung;
3731 }
3732 SERVER_END_REQ;
3733 return ret;
3734 }
3735
3736 /******************************************************************
3737 * ChangeWindowMessageFilter (USER32.@)
3738 */
3739 BOOL WINAPI ChangeWindowMessageFilter( UINT message, DWORD flag )
3740 {
3741 FIXME( "%x %08x\n", message, flag );
3742 return TRUE;
3743 }
Windows API implementation