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user32: Specify the new queue mask separately from the PeekMessage flags.
[wine/multimedia.git] / dlls / user32 / message.c
blob733003040c8b85779f1b3f579d58166e332a03ba
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
47 WINE_DEFAULT_DEBUG_CHANNEL(msg);
48 WINE_DECLARE_DEBUG_CHANNEL(relay);
49 WINE_DECLARE_DEBUG_CHANNEL(key);
50
51 #define WM_NCMOUSEFIRST WM_NCMOUSEMOVE
52 #define WM_NCMOUSELAST (WM_NCMOUSEFIRST+(WM_MOUSELAST-WM_MOUSEFIRST))
53
54 #define MAX_PACK_COUNT 4
55
56 #define SYS_TIMER_RATE 55 /* min. timer rate in ms (actually 54.925)*/
57
58 /* description of the data fields that need to be packed along with a sent message */
59 struct packed_message
60 {
61 int count;
62 const void *data[MAX_PACK_COUNT];
63 size_t size[MAX_PACK_COUNT];
64 };
65
66 /* info about the message currently being received by the current thread */
67 struct received_message_info
68 {
69 enum message_type type;
70 MSG msg;
71 UINT flags; /* InSendMessageEx return flags */
72 };
73
74 /* structure to group all parameters for sent messages of the various kinds */
75 struct send_message_info
76 {
77 enum message_type type;
78 DWORD dest_tid;
79 HWND hwnd;
80 UINT msg;
81 WPARAM wparam;
82 LPARAM lparam;
83 UINT flags; /* flags for SendMessageTimeout */
84 UINT timeout; /* timeout for SendMessageTimeout */
85 SENDASYNCPROC callback; /* callback function for SendMessageCallback */
86 ULONG_PTR data; /* callback data */
87 enum wm_char_mapping wm_char;
88 };
89
90
91 /* Message class descriptor */
92 static const WCHAR messageW[] = {'M','e','s','s','a','g','e',0};
93 static LRESULT WINAPI message_winproc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam );
94 const struct builtin_class_descr MESSAGE_builtin_class =
95 {
96 messageW, /* name */
97 0, /* style */
98 NULL, /* procA (winproc is Unicode only) */
99 message_winproc, /* procW */
100 0, /* extra */
101 IDC_ARROW, /* cursor */
102 0 /* brush */
103 };
104
105
106
107 /* flag for messages that contain pointers */
108 /* 32 messages per entry, messages 0..31 map to bits 0..31 */
109
110 #define SET(msg) (1 << ((msg) & 31))
111
112 static const unsigned int message_pointer_flags[] =
113 {
114 /* 0x00 - 0x1f */
115 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) |
116 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
117 /* 0x20 - 0x3f */
118 SET(WM_GETMINMAXINFO) | SET(WM_DRAWITEM) | SET(WM_MEASUREITEM) | SET(WM_DELETEITEM) |
119 SET(WM_COMPAREITEM),
120 /* 0x40 - 0x5f */
121 SET(WM_WINDOWPOSCHANGING) | SET(WM_WINDOWPOSCHANGED) | SET(WM_COPYDATA) |
122 SET(WM_NOTIFY) | SET(WM_HELP),
123 /* 0x60 - 0x7f */
124 SET(WM_STYLECHANGING) | SET(WM_STYLECHANGED),
125 /* 0x80 - 0x9f */
126 SET(WM_NCCREATE) | SET(WM_NCCALCSIZE) | SET(WM_GETDLGCODE),
127 /* 0xa0 - 0xbf */
128 SET(EM_GETSEL) | SET(EM_GETRECT) | SET(EM_SETRECT) | SET(EM_SETRECTNP),
129 /* 0xc0 - 0xdf */
130 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETTABSTOPS),
131 /* 0xe0 - 0xff */
132 SET(SBM_GETRANGE) | SET(SBM_SETSCROLLINFO) | SET(SBM_GETSCROLLINFO) | SET(SBM_GETSCROLLBARINFO),
133 /* 0x100 - 0x11f */
134 0,
135 /* 0x120 - 0x13f */
136 0,
137 /* 0x140 - 0x15f */
138 SET(CB_GETEDITSEL) | SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) |
139 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) |
140 SET(CB_GETDROPPEDCONTROLRECT) | SET(CB_FINDSTRINGEXACT),
141 /* 0x160 - 0x17f */
142 0,
143 /* 0x180 - 0x19f */
144 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_SELECTSTRING) |
145 SET(LB_DIR) | SET(LB_FINDSTRING) |
146 SET(LB_GETSELITEMS) | SET(LB_SETTABSTOPS) | SET(LB_ADDFILE) | SET(LB_GETITEMRECT),
147 /* 0x1a0 - 0x1bf */
148 SET(LB_FINDSTRINGEXACT),
149 /* 0x1c0 - 0x1df */
150 0,
151 /* 0x1e0 - 0x1ff */
152 0,
153 /* 0x200 - 0x21f */
154 SET(WM_NEXTMENU) | SET(WM_SIZING) | SET(WM_MOVING) | SET(WM_DEVICECHANGE),
155 /* 0x220 - 0x23f */
156 SET(WM_MDICREATE) | SET(WM_MDIGETACTIVE) | SET(WM_DROPOBJECT) |
157 SET(WM_QUERYDROPOBJECT) | SET(WM_DRAGLOOP) | SET(WM_DRAGSELECT) | SET(WM_DRAGMOVE),
158 /* 0x240 - 0x25f */
159 0,
160 /* 0x260 - 0x27f */
161 0,
162 /* 0x280 - 0x29f */
163 0,
164 /* 0x2a0 - 0x2bf */
165 0,
166 /* 0x2c0 - 0x2df */
167 0,
168 /* 0x2e0 - 0x2ff */
169 0,
170 /* 0x300 - 0x31f */
171 SET(WM_ASKCBFORMATNAME)
172 };
173
174 /* flags for messages that contain Unicode strings */
175 static const unsigned int message_unicode_flags[] =
176 {
177 /* 0x00 - 0x1f */
178 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) | SET(WM_GETTEXTLENGTH) |
179 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
180 /* 0x20 - 0x3f */
181 SET(WM_CHARTOITEM),
182 /* 0x40 - 0x5f */
183 0,
184 /* 0x60 - 0x7f */
185 0,
186 /* 0x80 - 0x9f */
187 SET(WM_NCCREATE),
188 /* 0xa0 - 0xbf */
189 0,
190 /* 0xc0 - 0xdf */
191 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETPASSWORDCHAR),
192 /* 0xe0 - 0xff */
193 0,
194 /* 0x100 - 0x11f */
195 SET(WM_CHAR) | SET(WM_DEADCHAR) | SET(WM_SYSCHAR) | SET(WM_SYSDEADCHAR),
196 /* 0x120 - 0x13f */
197 SET(WM_MENUCHAR),
198 /* 0x140 - 0x15f */
199 SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) | SET(CB_GETLBTEXTLEN) |
200 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) | SET(CB_FINDSTRINGEXACT),
201 /* 0x160 - 0x17f */
202 0,
203 /* 0x180 - 0x19f */
204 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_GETTEXTLEN) |
205 SET(LB_SELECTSTRING) | SET(LB_DIR) | SET(LB_FINDSTRING) | SET(LB_ADDFILE),
206 /* 0x1a0 - 0x1bf */
207 SET(LB_FINDSTRINGEXACT),
208 /* 0x1c0 - 0x1df */
209 0,
210 /* 0x1e0 - 0x1ff */
211 0,
212 /* 0x200 - 0x21f */
213 0,
214 /* 0x220 - 0x23f */
215 SET(WM_MDICREATE),
216 /* 0x240 - 0x25f */
217 0,
218 /* 0x260 - 0x27f */
219 0,
220 /* 0x280 - 0x29f */
221 SET(WM_IME_CHAR),
222 /* 0x2a0 - 0x2bf */
223 0,
224 /* 0x2c0 - 0x2df */
225 0,
226 /* 0x2e0 - 0x2ff */
227 0,
228 /* 0x300 - 0x31f */
229 SET(WM_PAINTCLIPBOARD) | SET(WM_SIZECLIPBOARD) | SET(WM_ASKCBFORMATNAME)
230 };
231
232 /* check whether a given message type includes pointers */
233 static inline int is_pointer_message( UINT message )
234 {
235 if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
236 return (message_pointer_flags[message / 32] & SET(message)) != 0;
237 }
238
239 /* check whether a given message type contains Unicode (or ASCII) chars */
240 static inline int is_unicode_message( UINT message )
241 {
242 if (message >= 8*sizeof(message_unicode_flags)) return FALSE;
243 return (message_unicode_flags[message / 32] & SET(message)) != 0;
244 }
245
246 #undef SET
247
248 /* add a data field to a packed message */
249 static inline void push_data( struct packed_message *data, const void *ptr, size_t size )
250 {
251 data->data[data->count] = ptr;
252 data->size[data->count] = size;
253 data->count++;
254 }
255
256 /* add a string to a packed message */
257 static inline void push_string( struct packed_message *data, LPCWSTR str )
258 {
259 push_data( data, str, (strlenW(str) + 1) * sizeof(WCHAR) );
260 }
261
262 /* make sure that the buffer contains a valid null-terminated Unicode string */
263 static inline BOOL check_string( LPCWSTR str, size_t size )
264 {
265 for (size /= sizeof(WCHAR); size; size--, str++)
266 if (!*str) return TRUE;
267 return FALSE;
268 }
269
270 /* make sure that there is space for 'size' bytes in buffer, growing it if needed */
271 static inline void *get_buffer_space( void **buffer, size_t size )
272 {
273 void *ret;
274
275 if (*buffer)
276 {
277 if (!(ret = HeapReAlloc( GetProcessHeap(), 0, *buffer, size )))
278 HeapFree( GetProcessHeap(), 0, *buffer );
279 }
280 else ret = HeapAlloc( GetProcessHeap(), 0, size );
281
282 *buffer = ret;
283 return ret;
284 }
285
286 /* check whether a combobox expects strings or ids in CB_ADDSTRING/CB_INSERTSTRING */
287 static inline BOOL combobox_has_strings( HWND hwnd )
288 {
289 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
290 return (!(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) || (style & CBS_HASSTRINGS));
291 }
292
293 /* check whether a listbox expects strings or ids in LB_ADDSTRING/LB_INSERTSTRING */
294 static inline BOOL listbox_has_strings( HWND hwnd )
295 {
296 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
297 return (!(style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE)) || (style & LBS_HASSTRINGS));
298 }
299
300 /* check whether message is in the range of keyboard messages */
301 static inline BOOL is_keyboard_message( UINT message )
302 {
303 return (message >= WM_KEYFIRST && message <= WM_KEYLAST);
304 }
305
306 /* check whether message is in the range of mouse messages */
307 static inline BOOL is_mouse_message( UINT message )
308 {
309 return ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) ||
310 (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST));
311 }
312
313 /* check whether message matches the specified hwnd filter */
314 static inline BOOL check_hwnd_filter( const MSG *msg, HWND hwnd_filter )
315 {
316 if (!hwnd_filter || hwnd_filter == GetDesktopWindow()) return TRUE;
317 return (msg->hwnd == hwnd_filter || IsChild( hwnd_filter, msg->hwnd ));
318 }
319
320 /* check for pending WM_CHAR message with DBCS trailing byte */
321 static inline BOOL get_pending_wmchar( MSG *msg, UINT first, UINT last, BOOL remove )
322 {
323 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
324
325 if (!data || !data->get_msg.message) return FALSE;
326 if ((first || last) && (first > WM_CHAR || last < WM_CHAR)) return FALSE;
327 if (!msg) return FALSE;
328 *msg = data->get_msg;
329 if (remove) data->get_msg.message = 0;
330 return TRUE;
331 }
332
333
334 /***********************************************************************
335 * message_winproc
336 *
337 * Window procedure for "Message" windows (HWND_MESSAGE parent).
338 */
339 static LRESULT WINAPI message_winproc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
340 {
341 if (message == WM_NCCREATE) return TRUE;
342 return 0; /* all other messages are ignored */
343 }
344
345
346 /***********************************************************************
347 * broadcast_message_callback
348 *
349 * Helper callback for broadcasting messages.
350 */
351 static BOOL CALLBACK broadcast_message_callback( HWND hwnd, LPARAM lparam )
352 {
353 struct send_message_info *info = (struct send_message_info *)lparam;
354 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & (WS_POPUP|WS_CAPTION))) return TRUE;
355 switch(info->type)
356 {
357 case MSG_UNICODE:
358 SendMessageTimeoutW( hwnd, info->msg, info->wparam, info->lparam,
359 info->flags, info->timeout, NULL );
360 break;
361 case MSG_ASCII:
362 SendMessageTimeoutA( hwnd, info->msg, info->wparam, info->lparam,
363 info->flags, info->timeout, NULL );
364 break;
365 case MSG_NOTIFY:
366 SendNotifyMessageW( hwnd, info->msg, info->wparam, info->lparam );
367 break;
368 case MSG_CALLBACK:
369 SendMessageCallbackW( hwnd, info->msg, info->wparam, info->lparam,
370 info->callback, info->data );
371 break;
372 case MSG_POSTED:
373 PostMessageW( hwnd, info->msg, info->wparam, info->lparam );
374 break;
375 default:
376 ERR( "bad type %d\n", info->type );
377 break;
378 }
379 return TRUE;
380 }
381
382
383 /***********************************************************************
384 * map_wparam_AtoW
385 *
386 * Convert the wparam of an ASCII message to Unicode.
387 */
388 BOOL map_wparam_AtoW( UINT message, WPARAM *wparam, enum wm_char_mapping mapping )
389 {
390 char ch[2];
391 WCHAR wch[2];
392
393 wch[0] = wch[1] = 0;
394 switch(message)
395 {
396 case WM_CHAR:
397 /* WM_CHAR is magic: a DBCS char can be sent/posted as two consecutive WM_CHAR
398 * messages, in which case the first char is stored, and the conversion
399 * to Unicode only takes place once the second char is sent/posted.
400 */
401 if (mapping != WMCHAR_MAP_NOMAPPING)
402 {
403 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
404 BYTE low = LOBYTE(*wparam);
405
406 if (HIBYTE(*wparam))
407 {
408 ch[0] = low;
409 ch[1] = HIBYTE(*wparam);
410 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
411 TRACE( "map %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
412 if (data) data->lead_byte[mapping] = 0;
413 }
414 else if (data && data->lead_byte[mapping])
415 {
416 ch[0] = data->lead_byte[mapping];
417 ch[1] = low;
418 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
419 TRACE( "map stored %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
420 data->lead_byte[mapping] = 0;
421 }
422 else if (!IsDBCSLeadByte( low ))
423 {
424 ch[0] = low;
425 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 1 );
426 TRACE( "map %02x -> %04x\n", (BYTE)ch[0], wch[0] );
427 if (data) data->lead_byte[mapping] = 0;
428 }
429 else /* store it and wait for trail byte */
430 {
431 if (!data)
432 {
433 if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) )))
434 return FALSE;
435 get_user_thread_info()->wmchar_data = data;
436 }
437 TRACE( "storing lead byte %02x mapping %u\n", low, mapping );
438 data->lead_byte[mapping] = low;
439 return FALSE;
440 }
441 *wparam = MAKEWPARAM(wch[0], wch[1]);
442 break;
443 }
444 /* else fall through */
445 case WM_CHARTOITEM:
446 case EM_SETPASSWORDCHAR:
447 case WM_DEADCHAR:
448 case WM_SYSCHAR:
449 case WM_SYSDEADCHAR:
450 case WM_MENUCHAR:
451 ch[0] = LOBYTE(*wparam);
452 ch[1] = HIBYTE(*wparam);
453 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
454 *wparam = MAKEWPARAM(wch[0], wch[1]);
455 break;
456 case WM_IME_CHAR:
457 ch[0] = HIBYTE(*wparam);
458 ch[1] = LOBYTE(*wparam);
459 if (ch[0]) RtlMultiByteToUnicodeN( wch, sizeof(wch[0]), NULL, ch, 2 );
460 else RtlMultiByteToUnicodeN( wch, sizeof(wch[0]), NULL, ch + 1, 1 );
461 *wparam = MAKEWPARAM(wch[0], HIWORD(*wparam));
462 break;
463 }
464 return TRUE;
465 }
466
467
468 /***********************************************************************
469 * map_wparam_WtoA
470 *
471 * Convert the wparam of a Unicode message to ASCII.
472 */
473 static void map_wparam_WtoA( MSG *msg, BOOL remove )
474 {
475 BYTE ch[2];
476 WCHAR wch[2];
477 DWORD len;
478
479 switch(msg->message)
480 {
481 case WM_CHAR:
482 if (!HIWORD(msg->wParam))
483 {
484 wch[0] = LOWORD(msg->wParam);
485 ch[0] = ch[1] = 0;
486 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, &len, wch, sizeof(wch[0]) );
487 if (len == 2) /* DBCS char */
488 {
489 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
490 if (!data)
491 {
492 if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) ))) return;
493 get_user_thread_info()->wmchar_data = data;
494 }
495 if (remove)
496 {
497 data->get_msg = *msg;
498 data->get_msg.wParam = ch[1];
499 }
500 msg->wParam = ch[0];
501 return;
502 }
503 }
504 /* else fall through */
505 case WM_CHARTOITEM:
506 case EM_SETPASSWORDCHAR:
507 case WM_DEADCHAR:
508 case WM_SYSCHAR:
509 case WM_SYSDEADCHAR:
510 case WM_MENUCHAR:
511 wch[0] = LOWORD(msg->wParam);
512 wch[1] = HIWORD(msg->wParam);
513 ch[0] = ch[1] = 0;
514 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, NULL, wch, sizeof(wch) );
515 msg->wParam = MAKEWPARAM( ch[0] | (ch[1] << 8), 0 );
516 break;
517 case WM_IME_CHAR:
518 wch[0] = LOWORD(msg->wParam);
519 ch[0] = ch[1] = 0;
520 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, &len, wch, sizeof(wch[0]) );
521 if (len == 2)
522 msg->wParam = MAKEWPARAM( (ch[0] << 8) | ch[1], HIWORD(msg->wParam) );
523 else
524 msg->wParam = MAKEWPARAM( ch[0], HIWORD(msg->wParam) );
525 break;
526 }
527 }
528
529
530 /***********************************************************************
531 * pack_message
532 *
533 * Pack a message for sending to another process.
534 * Return the size of the data we expect in the message reply.
535 * Set data->count to -1 if there is an error.
536 */
537 static size_t pack_message( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
538 struct packed_message *data )
539 {
540 data->count = 0;
541 switch(message)
542 {
543 case WM_NCCREATE:
544 case WM_CREATE:
545 {
546 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
547 push_data( data, cs, sizeof(*cs) );
548 if (HIWORD(cs->lpszName)) push_string( data, cs->lpszName );
549 if (HIWORD(cs->lpszClass)) push_string( data, cs->lpszClass );
550 return sizeof(*cs);
551 }
552 case WM_GETTEXT:
553 case WM_ASKCBFORMATNAME:
554 return wparam * sizeof(WCHAR);
555 case WM_WININICHANGE:
556 if (lparam) push_string(data, (LPWSTR)lparam );
557 return 0;
558 case WM_SETTEXT:
559 case WM_DEVMODECHANGE:
560 case CB_DIR:
561 case LB_DIR:
562 case LB_ADDFILE:
563 case EM_REPLACESEL:
564 push_string( data, (LPWSTR)lparam );
565 return 0;
566 case WM_GETMINMAXINFO:
567 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
568 return sizeof(MINMAXINFO);
569 case WM_DRAWITEM:
570 push_data( data, (DRAWITEMSTRUCT *)lparam, sizeof(DRAWITEMSTRUCT) );
571 return 0;
572 case WM_MEASUREITEM:
573 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
574 return sizeof(MEASUREITEMSTRUCT);
575 case WM_DELETEITEM:
576 push_data( data, (DELETEITEMSTRUCT *)lparam, sizeof(DELETEITEMSTRUCT) );
577 return 0;
578 case WM_COMPAREITEM:
579 push_data( data, (COMPAREITEMSTRUCT *)lparam, sizeof(COMPAREITEMSTRUCT) );
580 return 0;
581 case WM_WINDOWPOSCHANGING:
582 case WM_WINDOWPOSCHANGED:
583 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
584 return sizeof(WINDOWPOS);
585 case WM_COPYDATA:
586 {
587 COPYDATASTRUCT *cp = (COPYDATASTRUCT *)lparam;
588 push_data( data, cp, sizeof(*cp) );
589 if (cp->lpData) push_data( data, cp->lpData, cp->cbData );
590 return 0;
591 }
592 case WM_NOTIFY:
593 /* WM_NOTIFY cannot be sent across processes (MSDN) */
594 data->count = -1;
595 return 0;
596 case WM_HELP:
597 push_data( data, (HELPINFO *)lparam, sizeof(HELPINFO) );
598 return 0;
599 case WM_STYLECHANGING:
600 case WM_STYLECHANGED:
601 push_data( data, (STYLESTRUCT *)lparam, sizeof(STYLESTRUCT) );
602 return 0;
603 case WM_NCCALCSIZE:
604 if (!wparam)
605 {
606 push_data( data, (RECT *)lparam, sizeof(RECT) );
607 return sizeof(RECT);
608 }
609 else
610 {
611 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
612 push_data( data, nc, sizeof(*nc) );
613 push_data( data, nc->lppos, sizeof(*nc->lppos) );
614 return sizeof(*nc) + sizeof(*nc->lppos);
615 }
616 case WM_GETDLGCODE:
617 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
618 return sizeof(MSG);
619 case SBM_SETSCROLLINFO:
620 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
621 return 0;
622 case SBM_GETSCROLLINFO:
623 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
624 return sizeof(SCROLLINFO);
625 case SBM_GETSCROLLBARINFO:
626 {
627 const SCROLLBARINFO *info = (const SCROLLBARINFO *)lparam;
628 size_t size = min( info->cbSize, sizeof(SCROLLBARINFO) );
629 push_data( data, info, size );
630 return size;
631 }
632 case EM_GETSEL:
633 case SBM_GETRANGE:
634 case CB_GETEDITSEL:
635 {
636 size_t size = 0;
637 if (wparam) size += sizeof(DWORD);
638 if (lparam) size += sizeof(DWORD);
639 return size;
640 }
641 case EM_GETRECT:
642 case LB_GETITEMRECT:
643 case CB_GETDROPPEDCONTROLRECT:
644 return sizeof(RECT);
645 case EM_SETRECT:
646 case EM_SETRECTNP:
647 push_data( data, (RECT *)lparam, sizeof(RECT) );
648 return 0;
649 case EM_GETLINE:
650 {
651 WORD *pw = (WORD *)lparam;
652 push_data( data, pw, sizeof(*pw) );
653 return *pw * sizeof(WCHAR);
654 }
655 case EM_SETTABSTOPS:
656 case LB_SETTABSTOPS:
657 if (wparam) push_data( data, (UINT *)lparam, sizeof(UINT) * wparam );
658 return 0;
659 case CB_ADDSTRING:
660 case CB_INSERTSTRING:
661 case CB_FINDSTRING:
662 case CB_FINDSTRINGEXACT:
663 case CB_SELECTSTRING:
664 if (combobox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
665 return 0;
666 case CB_GETLBTEXT:
667 if (!combobox_has_strings( hwnd )) return sizeof(ULONG_PTR);
668 return (SendMessageW( hwnd, CB_GETLBTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
669 case LB_ADDSTRING:
670 case LB_INSERTSTRING:
671 case LB_FINDSTRING:
672 case LB_FINDSTRINGEXACT:
673 case LB_SELECTSTRING:
674 if (listbox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
675 return 0;
676 case LB_GETTEXT:
677 if (!listbox_has_strings( hwnd )) return sizeof(ULONG_PTR);
678 return (SendMessageW( hwnd, LB_GETTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
679 case LB_GETSELITEMS:
680 return wparam * sizeof(UINT);
681 case WM_NEXTMENU:
682 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
683 return sizeof(MDINEXTMENU);
684 case WM_SIZING:
685 case WM_MOVING:
686 push_data( data, (RECT *)lparam, sizeof(RECT) );
687 return sizeof(RECT);
688 case WM_MDICREATE:
689 {
690 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
691 push_data( data, cs, sizeof(*cs) );
692 if (HIWORD(cs->szTitle)) push_string( data, cs->szTitle );
693 if (HIWORD(cs->szClass)) push_string( data, cs->szClass );
694 return sizeof(*cs);
695 }
696 case WM_MDIGETACTIVE:
697 if (lparam) return sizeof(BOOL);
698 return 0;
699 case WM_DEVICECHANGE:
700 {
701 DEV_BROADCAST_HDR *header = (DEV_BROADCAST_HDR *)lparam;
702 push_data( data, header, header->dbch_size );
703 return 0;
704 }
705 case WM_WINE_SETWINDOWPOS:
706 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
707 return 0;
708 case WM_WINE_KEYBOARD_LL_HOOK:
709 {
710 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
711 push_data( data, h_extra, sizeof(*h_extra) );
712 push_data( data, (LPVOID)h_extra->lparam, sizeof(KBDLLHOOKSTRUCT) );
713 return 0;
714 }
715 case WM_WINE_MOUSE_LL_HOOK:
716 {
717 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
718 push_data( data, h_extra, sizeof(*h_extra) );
719 push_data( data, (LPVOID)h_extra->lparam, sizeof(MSLLHOOKSTRUCT) );
720 return 0;
721 }
722 case WM_NCPAINT:
723 if (wparam <= 1) return 0;
724 FIXME( "WM_NCPAINT hdc packing not supported yet\n" );
725 data->count = -1;
726 return 0;
727 case WM_PAINT:
728 if (!wparam) return 0;
729 /* fall through */
730
731 /* these contain an HFONT */
732 case WM_SETFONT:
733 case WM_GETFONT:
734 /* these contain an HDC */
735 case WM_ERASEBKGND:
736 case WM_ICONERASEBKGND:
737 case WM_CTLCOLORMSGBOX:
738 case WM_CTLCOLOREDIT:
739 case WM_CTLCOLORLISTBOX:
740 case WM_CTLCOLORBTN:
741 case WM_CTLCOLORDLG:
742 case WM_CTLCOLORSCROLLBAR:
743 case WM_CTLCOLORSTATIC:
744 case WM_PRINT:
745 case WM_PRINTCLIENT:
746 /* these contain an HGLOBAL */
747 case WM_PAINTCLIPBOARD:
748 case WM_SIZECLIPBOARD:
749 /* these contain HICON */
750 case WM_GETICON:
751 case WM_SETICON:
752 case WM_QUERYDRAGICON:
753 case WM_QUERYPARKICON:
754 /* these contain pointers */
755 case WM_DROPOBJECT:
756 case WM_QUERYDROPOBJECT:
757 case WM_DRAGLOOP:
758 case WM_DRAGSELECT:
759 case WM_DRAGMOVE:
760 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
761 data->count = -1;
762 return 0;
763 }
764 return 0;
765 }
766
767
768 /***********************************************************************
769 * unpack_message
770 *
771 * Unpack a message received from another process.
772 */
773 static BOOL unpack_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
774 void **buffer, size_t size )
775 {
776 size_t minsize = 0;
777
778 switch(message)
779 {
780 case WM_NCCREATE:
781 case WM_CREATE:
782 {
783 CREATESTRUCTW *cs = *buffer;
784 WCHAR *str = (WCHAR *)(cs + 1);
785 if (size < sizeof(*cs)) return FALSE;
786 size -= sizeof(*cs);
787 if (HIWORD(cs->lpszName))
788 {
789 if (!check_string( str, size )) return FALSE;
790 cs->lpszName = str;
791 size -= (strlenW(str) + 1) * sizeof(WCHAR);
792 str += strlenW(str) + 1;
793 }
794 if (HIWORD(cs->lpszClass))
795 {
796 if (!check_string( str, size )) return FALSE;
797 cs->lpszClass = str;
798 }
799 break;
800 }
801 case WM_GETTEXT:
802 case WM_ASKCBFORMATNAME:
803 if (!get_buffer_space( buffer, (*wparam * sizeof(WCHAR)) )) return FALSE;
804 break;
805 case WM_WININICHANGE:
806 if (!*lparam) return TRUE;
807 /* fall through */
808 case WM_SETTEXT:
809 case WM_DEVMODECHANGE:
810 case CB_DIR:
811 case LB_DIR:
812 case LB_ADDFILE:
813 case EM_REPLACESEL:
814 if (!check_string( *buffer, size )) return FALSE;
815 break;
816 case WM_GETMINMAXINFO:
817 minsize = sizeof(MINMAXINFO);
818 break;
819 case WM_DRAWITEM:
820 minsize = sizeof(DRAWITEMSTRUCT);
821 break;
822 case WM_MEASUREITEM:
823 minsize = sizeof(MEASUREITEMSTRUCT);
824 break;
825 case WM_DELETEITEM:
826 minsize = sizeof(DELETEITEMSTRUCT);
827 break;
828 case WM_COMPAREITEM:
829 minsize = sizeof(COMPAREITEMSTRUCT);
830 break;
831 case WM_WINDOWPOSCHANGING:
832 case WM_WINDOWPOSCHANGED:
833 case WM_WINE_SETWINDOWPOS:
834 minsize = sizeof(WINDOWPOS);
835 break;
836 case WM_COPYDATA:
837 {
838 COPYDATASTRUCT *cp = *buffer;
839 if (size < sizeof(*cp)) return FALSE;
840 if (cp->lpData)
841 {
842 minsize = sizeof(*cp) + cp->cbData;
843 cp->lpData = cp + 1;
844 }
845 break;
846 }
847 case WM_NOTIFY:
848 /* WM_NOTIFY cannot be sent across processes (MSDN) */
849 return FALSE;
850 case WM_HELP:
851 minsize = sizeof(HELPINFO);
852 break;
853 case WM_STYLECHANGING:
854 case WM_STYLECHANGED:
855 minsize = sizeof(STYLESTRUCT);
856 break;
857 case WM_NCCALCSIZE:
858 if (!*wparam) minsize = sizeof(RECT);
859 else
860 {
861 NCCALCSIZE_PARAMS *nc = *buffer;
862 if (size < sizeof(*nc) + sizeof(*nc->lppos)) return FALSE;
863 nc->lppos = (WINDOWPOS *)(nc + 1);
864 }
865 break;
866 case WM_GETDLGCODE:
867 if (!*lparam) return TRUE;
868 minsize = sizeof(MSG);
869 break;
870 case SBM_SETSCROLLINFO:
871 minsize = sizeof(SCROLLINFO);
872 break;
873 case SBM_GETSCROLLINFO:
874 if (!get_buffer_space( buffer, sizeof(SCROLLINFO ))) return FALSE;
875 break;
876 case SBM_GETSCROLLBARINFO:
877 if (!get_buffer_space( buffer, sizeof(SCROLLBARINFO ))) return FALSE;
878 break;
879 case EM_GETSEL:
880 case SBM_GETRANGE:
881 case CB_GETEDITSEL:
882 if (*wparam || *lparam)
883 {
884 if (!get_buffer_space( buffer, 2*sizeof(DWORD) )) return FALSE;
885 if (*wparam) *wparam = (WPARAM)*buffer;
886 if (*lparam) *lparam = (LPARAM)((DWORD *)*buffer + 1);
887 }
888 return TRUE;
889 case EM_GETRECT:
890 case LB_GETITEMRECT:
891 case CB_GETDROPPEDCONTROLRECT:
892 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
893 break;
894 case EM_SETRECT:
895 case EM_SETRECTNP:
896 minsize = sizeof(RECT);
897 break;
898 case EM_GETLINE:
899 {
900 WORD len;
901 if (size < sizeof(WORD)) return FALSE;
902 len = *(WORD *)*buffer;
903 if (!get_buffer_space( buffer, (len + 1) * sizeof(WCHAR) )) return FALSE;
904 *lparam = (LPARAM)*buffer + sizeof(WORD); /* don't erase WORD at start of buffer */
905 return TRUE;
906 }
907 case EM_SETTABSTOPS:
908 case LB_SETTABSTOPS:
909 if (!*wparam) return TRUE;
910 minsize = *wparam * sizeof(UINT);
911 break;
912 case CB_ADDSTRING:
913 case CB_INSERTSTRING:
914 case CB_FINDSTRING:
915 case CB_FINDSTRINGEXACT:
916 case CB_SELECTSTRING:
917 case LB_ADDSTRING:
918 case LB_INSERTSTRING:
919 case LB_FINDSTRING:
920 case LB_FINDSTRINGEXACT:
921 case LB_SELECTSTRING:
922 if (!*buffer) return TRUE;
923 if (!check_string( *buffer, size )) return FALSE;
924 break;
925 case CB_GETLBTEXT:
926 {
927 size = sizeof(ULONG_PTR);
928 if (combobox_has_strings( hwnd ))
929 size = (SendMessageW( hwnd, CB_GETLBTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
930 if (!get_buffer_space( buffer, size )) return FALSE;
931 break;
932 }
933 case LB_GETTEXT:
934 {
935 size = sizeof(ULONG_PTR);
936 if (listbox_has_strings( hwnd ))
937 size = (SendMessageW( hwnd, LB_GETTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
938 if (!get_buffer_space( buffer, size )) return FALSE;
939 break;
940 }
941 case LB_GETSELITEMS:
942 if (!get_buffer_space( buffer, *wparam * sizeof(UINT) )) return FALSE;
943 break;
944 case WM_NEXTMENU:
945 minsize = sizeof(MDINEXTMENU);
946 if (!get_buffer_space( buffer, sizeof(MDINEXTMENU) )) return FALSE;
947 break;
948 case WM_SIZING:
949 case WM_MOVING:
950 minsize = sizeof(RECT);
951 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
952 break;
953 case WM_MDICREATE:
954 {
955 MDICREATESTRUCTW *cs = *buffer;
956 WCHAR *str = (WCHAR *)(cs + 1);
957 if (size < sizeof(*cs)) return FALSE;
958 size -= sizeof(*cs);
959 if (HIWORD(cs->szTitle))
960 {
961 if (!check_string( str, size )) return FALSE;
962 cs->szTitle = str;
963 size -= (strlenW(str) + 1) * sizeof(WCHAR);
964 str += strlenW(str) + 1;
965 }
966 if (HIWORD(cs->szClass))
967 {
968 if (!check_string( str, size )) return FALSE;
969 cs->szClass = str;
970 }
971 break;
972 }
973 case WM_MDIGETACTIVE:
974 if (!*lparam) return TRUE;
975 if (!get_buffer_space( buffer, sizeof(BOOL) )) return FALSE;
976 break;
977 case WM_DEVICECHANGE:
978 minsize = sizeof(DEV_BROADCAST_HDR);
979 break;
980 case WM_WINE_KEYBOARD_LL_HOOK:
981 case WM_WINE_MOUSE_LL_HOOK:
982 {
983 struct hook_extra_info *h_extra = (struct hook_extra_info *)*buffer;
984
985 minsize = sizeof(struct hook_extra_info) +
986 (message == WM_WINE_KEYBOARD_LL_HOOK ? sizeof(KBDLLHOOKSTRUCT)
987 : sizeof(MSLLHOOKSTRUCT));
988 if (size < minsize) return FALSE;
989 h_extra->lparam = (LPARAM)(h_extra + 1);
990 break;
991 }
992 case WM_NCPAINT:
993 if (*wparam <= 1) return TRUE;
994 FIXME( "WM_NCPAINT hdc unpacking not supported\n" );
995 return FALSE;
996 case WM_PAINT:
997 if (!*wparam) return TRUE;
998 /* fall through */
999
1000 /* these contain an HFONT */
1001 case WM_SETFONT:
1002 case WM_GETFONT:
1003 /* these contain an HDC */
1004 case WM_ERASEBKGND:
1005 case WM_ICONERASEBKGND:
1006 case WM_CTLCOLORMSGBOX:
1007 case WM_CTLCOLOREDIT:
1008 case WM_CTLCOLORLISTBOX:
1009 case WM_CTLCOLORBTN:
1010 case WM_CTLCOLORDLG:
1011 case WM_CTLCOLORSCROLLBAR:
1012 case WM_CTLCOLORSTATIC:
1013 case WM_PRINT:
1014 case WM_PRINTCLIENT:
1015 /* these contain an HGLOBAL */
1016 case WM_PAINTCLIPBOARD:
1017 case WM_SIZECLIPBOARD:
1018 /* these contain HICON */
1019 case WM_GETICON:
1020 case WM_SETICON:
1021 case WM_QUERYDRAGICON:
1022 case WM_QUERYPARKICON:
1023 /* these contain pointers */
1024 case WM_DROPOBJECT:
1025 case WM_QUERYDROPOBJECT:
1026 case WM_DRAGLOOP:
1027 case WM_DRAGSELECT:
1028 case WM_DRAGMOVE:
1029 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
1030 return FALSE;
1031
1032 default:
1033 return TRUE; /* message doesn't need any unpacking */
1034 }
1035
1036 /* default exit for most messages: check minsize and store buffer in lparam */
1037 if (size < minsize) return FALSE;
1038 *lparam = (LPARAM)*buffer;
1039 return TRUE;
1040 }
1041
1042
1043 /***********************************************************************
1044 * pack_reply
1045 *
1046 * Pack a reply to a message for sending to another process.
1047 */
1048 static void pack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1049 LRESULT res, struct packed_message *data )
1050 {
1051 data->count = 0;
1052 switch(message)
1053 {
1054 case WM_NCCREATE:
1055 case WM_CREATE:
1056 push_data( data, (CREATESTRUCTW *)lparam, sizeof(CREATESTRUCTW) );
1057 break;
1058 case WM_GETTEXT:
1059 case CB_GETLBTEXT:
1060 case LB_GETTEXT:
1061 push_data( data, (WCHAR *)lparam, (res + 1) * sizeof(WCHAR) );
1062 break;
1063 case WM_GETMINMAXINFO:
1064 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
1065 break;
1066 case WM_MEASUREITEM:
1067 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
1068 break;
1069 case WM_WINDOWPOSCHANGING:
1070 case WM_WINDOWPOSCHANGED:
1071 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
1072 break;
1073 case WM_GETDLGCODE:
1074 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
1075 break;
1076 case SBM_GETSCROLLINFO:
1077 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
1078 break;
1079 case EM_GETRECT:
1080 case LB_GETITEMRECT:
1081 case CB_GETDROPPEDCONTROLRECT:
1082 case WM_SIZING:
1083 case WM_MOVING:
1084 push_data( data, (RECT *)lparam, sizeof(RECT) );
1085 break;
1086 case EM_GETLINE:
1087 {
1088 WORD *ptr = (WORD *)lparam;
1089 push_data( data, ptr, ptr[-1] * sizeof(WCHAR) );
1090 break;
1091 }
1092 case LB_GETSELITEMS:
1093 push_data( data, (UINT *)lparam, wparam * sizeof(UINT) );
1094 break;
1095 case WM_MDIGETACTIVE:
1096 if (lparam) push_data( data, (BOOL *)lparam, sizeof(BOOL) );
1097 break;
1098 case WM_NCCALCSIZE:
1099 if (!wparam)
1100 push_data( data, (RECT *)lparam, sizeof(RECT) );
1101 else
1102 {
1103 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1104 push_data( data, nc, sizeof(*nc) );
1105 push_data( data, nc->lppos, sizeof(*nc->lppos) );
1106 }
1107 break;
1108 case EM_GETSEL:
1109 case SBM_GETRANGE:
1110 case CB_GETEDITSEL:
1111 if (wparam) push_data( data, (DWORD *)wparam, sizeof(DWORD) );
1112 if (lparam) push_data( data, (DWORD *)lparam, sizeof(DWORD) );
1113 break;
1114 case WM_NEXTMENU:
1115 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
1116 break;
1117 case WM_MDICREATE:
1118 push_data( data, (MDICREATESTRUCTW *)lparam, sizeof(MDICREATESTRUCTW) );
1119 break;
1120 case WM_ASKCBFORMATNAME:
1121 push_data( data, (WCHAR *)lparam, (strlenW((WCHAR *)lparam) + 1) * sizeof(WCHAR) );
1122 break;
1123 }
1124 }
1125
1126
1127 /***********************************************************************
1128 * unpack_reply
1129 *
1130 * Unpack a message reply received from another process.
1131 */
1132 static void unpack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1133 void *buffer, size_t size )
1134 {
1135 switch(message)
1136 {
1137 case WM_NCCREATE:
1138 case WM_CREATE:
1139 {
1140 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
1141 LPCWSTR name = cs->lpszName, class = cs->lpszClass;
1142 memcpy( cs, buffer, min( sizeof(*cs), size ));
1143 cs->lpszName = name; /* restore the original pointers */
1144 cs->lpszClass = class;
1145 break;
1146 }
1147 case WM_GETTEXT:
1148 case WM_ASKCBFORMATNAME:
1149 memcpy( (WCHAR *)lparam, buffer, min( wparam*sizeof(WCHAR), size ));
1150 break;
1151 case WM_GETMINMAXINFO:
1152 memcpy( (MINMAXINFO *)lparam, buffer, min( sizeof(MINMAXINFO), size ));
1153 break;
1154 case WM_MEASUREITEM:
1155 memcpy( (MEASUREITEMSTRUCT *)lparam, buffer, min( sizeof(MEASUREITEMSTRUCT), size ));
1156 break;
1157 case WM_WINDOWPOSCHANGING:
1158 case WM_WINDOWPOSCHANGED:
1159 memcpy( (WINDOWPOS *)lparam, buffer, min( sizeof(WINDOWPOS), size ));
1160 break;
1161 case WM_GETDLGCODE:
1162 if (lparam) memcpy( (MSG *)lparam, buffer, min( sizeof(MSG), size ));
1163 break;
1164 case SBM_GETSCROLLINFO:
1165 memcpy( (SCROLLINFO *)lparam, buffer, min( sizeof(SCROLLINFO), size ));
1166 break;
1167 case SBM_GETSCROLLBARINFO:
1168 memcpy( (SCROLLBARINFO *)lparam, buffer, min( sizeof(SCROLLBARINFO), size ));
1169 break;
1170 case EM_GETRECT:
1171 case CB_GETDROPPEDCONTROLRECT:
1172 case LB_GETITEMRECT:
1173 case WM_SIZING:
1174 case WM_MOVING:
1175 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1176 break;
1177 case EM_GETLINE:
1178 size = min( size, (size_t)*(WORD *)lparam );
1179 memcpy( (WCHAR *)lparam, buffer, size );
1180 break;
1181 case LB_GETSELITEMS:
1182 memcpy( (UINT *)lparam, buffer, min( wparam*sizeof(UINT), size ));
1183 break;
1184 case LB_GETTEXT:
1185 case CB_GETLBTEXT:
1186 memcpy( (WCHAR *)lparam, buffer, size );
1187 break;
1188 case WM_NEXTMENU:
1189 memcpy( (MDINEXTMENU *)lparam, buffer, min( sizeof(MDINEXTMENU), size ));
1190 break;
1191 case WM_MDIGETACTIVE:
1192 if (lparam) memcpy( (BOOL *)lparam, buffer, min( sizeof(BOOL), size ));
1193 break;
1194 case WM_NCCALCSIZE:
1195 if (!wparam)
1196 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1197 else
1198 {
1199 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1200 WINDOWPOS *wp = nc->lppos;
1201 memcpy( nc, buffer, min( sizeof(*nc), size ));
1202 if (size > sizeof(*nc))
1203 {
1204 size -= sizeof(*nc);
1205 memcpy( wp, (NCCALCSIZE_PARAMS*)buffer + 1, min( sizeof(*wp), size ));
1206 }
1207 nc->lppos = wp; /* restore the original pointer */
1208 }
1209 break;
1210 case EM_GETSEL:
1211 case SBM_GETRANGE:
1212 case CB_GETEDITSEL:
1213 if (wparam)
1214 {
1215 memcpy( (DWORD *)wparam, buffer, min( sizeof(DWORD), size ));
1216 if (size <= sizeof(DWORD)) break;
1217 size -= sizeof(DWORD);
1218 buffer = (DWORD *)buffer + 1;
1219 }
1220 if (lparam) memcpy( (DWORD *)lparam, buffer, min( sizeof(DWORD), size ));
1221 break;
1222 case WM_MDICREATE:
1223 {
1224 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
1225 LPCWSTR title = cs->szTitle, class = cs->szClass;
1226 memcpy( cs, buffer, min( sizeof(*cs), size ));
1227 cs->szTitle = title; /* restore the original pointers */
1228 cs->szClass = class;
1229 break;
1230 }
1231 default:
1232 ERR( "should not happen: unexpected message %x\n", message );
1233 break;
1234 }
1235 }
1236
1237
1238 /***********************************************************************
1239 * reply_message
1240 *
1241 * Send a reply to a sent message.
1242 */
1243 static void reply_message( struct received_message_info *info, LRESULT result, BOOL remove )
1244 {
1245 struct packed_message data;
1246 int i, replied = info->flags & ISMEX_REPLIED;
1247
1248 if (info->flags & ISMEX_NOTIFY) return; /* notify messages don't get replies */
1249 if (!remove && replied) return; /* replied already */
1250
1251 data.count = 0;
1252 info->flags |= ISMEX_REPLIED;
1253
1254 if (info->type == MSG_OTHER_PROCESS && !replied)
1255 {
1256 pack_reply( info->msg.hwnd, info->msg.message, info->msg.wParam,
1257 info->msg.lParam, result, &data );
1258 }
1259
1260 SERVER_START_REQ( reply_message )
1261 {
1262 req->result = result;
1263 req->remove = remove;
1264 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
1265 wine_server_call( req );
1266 }
1267 SERVER_END_REQ;
1268 }
1269
1270
1271 /***********************************************************************
1272 * handle_internal_message
1273 *
1274 * Handle an internal Wine message instead of calling the window proc.
1275 */
1276 static LRESULT handle_internal_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
1277 {
1278 switch(msg)
1279 {
1280 case WM_WINE_DESTROYWINDOW:
1281 return WIN_DestroyWindow( hwnd );
1282 case WM_WINE_SETWINDOWPOS:
1283 if (is_desktop_window( hwnd )) return 0;
1284 return USER_SetWindowPos( (WINDOWPOS *)lparam );
1285 case WM_WINE_SHOWWINDOW:
1286 if (is_desktop_window( hwnd )) return 0;
1287 return ShowWindow( hwnd, wparam );
1288 case WM_WINE_SETPARENT:
1289 if (is_desktop_window( hwnd )) return 0;
1290 return (LRESULT)SetParent( hwnd, (HWND)wparam );
1291 case WM_WINE_SETWINDOWLONG:
1292 return WIN_SetWindowLong( hwnd, (short)LOWORD(wparam), HIWORD(wparam), lparam, TRUE );
1293 case WM_WINE_ENABLEWINDOW:
1294 if (is_desktop_window( hwnd )) return 0;
1295 return EnableWindow( hwnd, wparam );
1296 case WM_WINE_SETACTIVEWINDOW:
1297 if (is_desktop_window( hwnd )) return 0;
1298 return (LRESULT)SetActiveWindow( (HWND)wparam );
1299 case WM_WINE_KEYBOARD_LL_HOOK:
1300 case WM_WINE_MOUSE_LL_HOOK:
1301 {
1302 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
1303
1304 return call_current_hook( h_extra->handle, HC_ACTION, wparam, h_extra->lparam );
1305 }
1306 default:
1307 if (msg >= WM_WINE_FIRST_DRIVER_MSG && msg <= WM_WINE_LAST_DRIVER_MSG)
1308 return USER_Driver->pWindowMessage( hwnd, msg, wparam, lparam );
1309 FIXME( "unknown internal message %x\n", msg );
1310 return 0;
1311 }
1312 }
1313
1314 /* since the WM_DDE_ACK response to a WM_DDE_EXECUTE message should contain the handle
1315 * to the memory handle, we keep track (in the server side) of all pairs of handle
1316 * used (the client passes its value and the content of the memory handle), and
1317 * the server stored both values (the client, and the local one, created after the
1318 * content). When a ACK message is generated, the list of pair is searched for a
1319 * matching pair, so that the client memory handle can be returned.
1320 */
1321 struct DDE_pair {
1322 HGLOBAL client_hMem;
1323 HGLOBAL server_hMem;
1324 };
1325
1326 static struct DDE_pair* dde_pairs;
1327 static int dde_num_alloc;
1328 static int dde_num_used;
1329
1330 static CRITICAL_SECTION dde_crst;
1331 static CRITICAL_SECTION_DEBUG critsect_debug =
1332 {
1333 0, 0, &dde_crst,
1334 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
1335 0, 0, { (DWORD_PTR)(__FILE__ ": dde_crst") }
1336 };
1337 static CRITICAL_SECTION dde_crst = { &critsect_debug, -1, 0, 0, 0, 0 };
1338
1339 static BOOL dde_add_pair(HGLOBAL chm, HGLOBAL shm)
1340 {
1341 int i;
1342 #define GROWBY 4
1343
1344 EnterCriticalSection(&dde_crst);
1345
1346 /* now remember the pair of hMem on both sides */
1347 if (dde_num_used == dde_num_alloc)
1348 {
1349 struct DDE_pair* tmp;
1350 if (dde_pairs)
1351 tmp = HeapReAlloc( GetProcessHeap(), 0, dde_pairs,
1352 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1353 else
1354 tmp = HeapAlloc( GetProcessHeap(), 0,
1355 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1356
1357 if (!tmp)
1358 {
1359 LeaveCriticalSection(&dde_crst);
1360 return FALSE;
1361 }
1362 dde_pairs = tmp;
1363 /* zero out newly allocated part */
1364 memset(&dde_pairs[dde_num_alloc], 0, GROWBY * sizeof(struct DDE_pair));
1365 dde_num_alloc += GROWBY;
1366 }
1367 #undef GROWBY
1368 for (i = 0; i < dde_num_alloc; i++)
1369 {
1370 if (dde_pairs[i].server_hMem == 0)
1371 {
1372 dde_pairs[i].client_hMem = chm;
1373 dde_pairs[i].server_hMem = shm;
1374 dde_num_used++;
1375 break;
1376 }
1377 }
1378 LeaveCriticalSection(&dde_crst);
1379 return TRUE;
1380 }
1381
1382 static HGLOBAL dde_get_pair(HGLOBAL shm)
1383 {
1384 int i;
1385 HGLOBAL ret = 0;
1386
1387 EnterCriticalSection(&dde_crst);
1388 for (i = 0; i < dde_num_alloc; i++)
1389 {
1390 if (dde_pairs[i].server_hMem == shm)
1391 {
1392 /* free this pair */
1393 dde_pairs[i].server_hMem = 0;
1394 dde_num_used--;
1395 ret = dde_pairs[i].client_hMem;
1396 break;
1397 }
1398 }
1399 LeaveCriticalSection(&dde_crst);
1400 return ret;
1401 }
1402
1403 /***********************************************************************
1404 * post_dde_message
1405 *
1406 * Post a DDE message
1407 */
1408 static BOOL post_dde_message( struct packed_message *data, const struct send_message_info *info )
1409 {
1410 void* ptr = NULL;
1411 int size = 0;
1412 UINT_PTR uiLo, uiHi;
1413 LPARAM lp = 0;
1414 HGLOBAL hunlock = 0;
1415 int i;
1416 DWORD res;
1417
1418 if (!UnpackDDElParam( info->msg, info->lparam, &uiLo, &uiHi ))
1419 return FALSE;
1420
1421 lp = info->lparam;
1422 switch (info->msg)
1423 {
1424 /* DDE messages which don't require packing are:
1425 * WM_DDE_INITIATE
1426 * WM_DDE_TERMINATE
1427 * WM_DDE_REQUEST
1428 * WM_DDE_UNADVISE
1429 */
1430 case WM_DDE_ACK:
1431 if (HIWORD(uiHi))
1432 {
1433 /* uiHi should contain a hMem from WM_DDE_EXECUTE */
1434 HGLOBAL h = dde_get_pair( (HANDLE)uiHi );
1435 if (h)
1436 {
1437 /* send back the value of h on the other side */
1438 push_data( data, &h, sizeof(HGLOBAL) );
1439 lp = uiLo;
1440 TRACE( "send dde-ack %lx %08lx => %p\n", uiLo, uiHi, h );
1441 }
1442 }
1443 else
1444 {
1445 /* uiHi should contain either an atom or 0 */
1446 TRACE( "send dde-ack %lx atom=%lx\n", uiLo, uiHi );
1447 lp = MAKELONG( uiLo, uiHi );
1448 }
1449 break;
1450 case WM_DDE_ADVISE:
1451 case WM_DDE_DATA:
1452 case WM_DDE_POKE:
1453 size = 0;
1454 if (uiLo)
1455 {
1456 size = GlobalSize( (HGLOBAL)uiLo ) ;
1457 if ((info->msg == WM_DDE_ADVISE && size < sizeof(DDEADVISE)) ||
1458 (info->msg == WM_DDE_DATA && size < FIELD_OFFSET(DDEDATA, Value)) ||
1459 (info->msg == WM_DDE_POKE && size < FIELD_OFFSET(DDEPOKE, Value))
1460 )
1461 return FALSE;
1462 }
1463 else if (info->msg != WM_DDE_DATA) return FALSE;
1464
1465 lp = uiHi;
1466 if (uiLo)
1467 {
1468 if ((ptr = GlobalLock( (HGLOBAL)uiLo) ))
1469 {
1470 DDEDATA *dde_data = (DDEDATA *)ptr;
1471 TRACE("unused %d, fResponse %d, fRelease %d, fDeferUpd %d, fAckReq %d, cfFormat %d\n",
1472 dde_data->unused, dde_data->fResponse, dde_data->fRelease,
1473 dde_data->reserved, dde_data->fAckReq, dde_data->cfFormat);
1474 push_data( data, ptr, size );
1475 hunlock = (HGLOBAL)uiLo;
1476 }
1477 }
1478 TRACE( "send ddepack %u %lx\n", size, uiHi );
1479 break;
1480 case WM_DDE_EXECUTE:
1481 if (info->lparam)
1482 {
1483 if ((ptr = GlobalLock( (HGLOBAL)info->lparam) ))
1484 {
1485 push_data(data, ptr, GlobalSize( (HGLOBAL)info->lparam ));
1486 /* so that the other side can send it back on ACK */
1487 lp = info->lparam;
1488 hunlock = (HGLOBAL)info->lparam;
1489 }
1490 }
1491 break;
1492 }
1493 SERVER_START_REQ( send_message )
1494 {
1495 req->id = info->dest_tid;
1496 req->type = info->type;
1497 req->flags = 0;
1498 req->win = info->hwnd;
1499 req->msg = info->msg;
1500 req->wparam = info->wparam;
1501 req->lparam = lp;
1502 req->timeout = TIMEOUT_INFINITE;
1503 for (i = 0; i < data->count; i++)
1504 wine_server_add_data( req, data->data[i], data->size[i] );
1505 if ((res = wine_server_call( req )))
1506 {
1507 if (res == STATUS_INVALID_PARAMETER)
1508 /* FIXME: find a STATUS_ value for this one */
1509 SetLastError( ERROR_INVALID_THREAD_ID );
1510 else
1511 SetLastError( RtlNtStatusToDosError(res) );
1512 }
1513 else
1514 FreeDDElParam(info->msg, info->lparam);
1515 }
1516 SERVER_END_REQ;
1517 if (hunlock) GlobalUnlock(hunlock);
1518
1519 return !res;
1520 }
1521
1522 /***********************************************************************
1523 * unpack_dde_message
1524 *
1525 * Unpack a posted DDE message received from another process.
1526 */
1527 static BOOL unpack_dde_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
1528 void **buffer, size_t size )
1529 {
1530 UINT_PTR uiLo, uiHi;
1531 HGLOBAL hMem = 0;
1532 void* ptr;
1533
1534 switch (message)
1535 {
1536 case WM_DDE_ACK:
1537 if (size)
1538 {
1539 /* hMem is being passed */
1540 if (size != sizeof(HGLOBAL)) return FALSE;
1541 if (!buffer || !*buffer) return FALSE;
1542 uiLo = *lparam;
1543 memcpy( &hMem, *buffer, size );
1544 uiHi = (UINT_PTR)hMem;
1545 TRACE("recv dde-ack %lx mem=%lx[%lx]\n", uiLo, uiHi, GlobalSize( hMem ));
1546 }
1547 else
1548 {
1549 uiLo = LOWORD( *lparam );
1550 uiHi = HIWORD( *lparam );
1551 TRACE("recv dde-ack %lx atom=%lx\n", uiLo, uiHi);
1552 }
1553 *lparam = PackDDElParam( WM_DDE_ACK, uiLo, uiHi );
1554 break;
1555 case WM_DDE_ADVISE:
1556 case WM_DDE_DATA:
1557 case WM_DDE_POKE:
1558 if ((!buffer || !*buffer) && message != WM_DDE_DATA) return FALSE;
1559 uiHi = *lparam;
1560 if (size)
1561 {
1562 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size )))
1563 return FALSE;
1564 if ((ptr = GlobalLock( hMem )))
1565 {
1566 memcpy( ptr, *buffer, size );
1567 GlobalUnlock( hMem );
1568 }
1569 else
1570 {
1571 GlobalFree( hMem );
1572 return FALSE;
1573 }
1574 }
1575 uiLo = (UINT_PTR)hMem;
1576
1577 *lparam = PackDDElParam( message, uiLo, uiHi );
1578 break;
1579 case WM_DDE_EXECUTE:
1580 if (size)
1581 {
1582 if (!buffer || !*buffer) return FALSE;
1583 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size ))) return FALSE;
1584 if ((ptr = GlobalLock( hMem )))
1585 {
1586 memcpy( ptr, *buffer, size );
1587 GlobalUnlock( hMem );
1588 TRACE( "exec: pairing c=%08lx s=%p\n", *lparam, hMem );
1589 if (!dde_add_pair( (HGLOBAL)*lparam, hMem ))
1590 {
1591 GlobalFree( hMem );
1592 return FALSE;
1593 }
1594 }
1595 else
1596 {
1597 GlobalFree( hMem );
1598 return FALSE;
1599 }
1600 } else return FALSE;
1601 *lparam = (LPARAM)hMem;
1602 break;
1603 }
1604 return TRUE;
1605 }
1606
1607 /***********************************************************************
1608 * call_window_proc
1609 *
1610 * Call a window procedure and the corresponding hooks.
1611 */
1612 static LRESULT call_window_proc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
1613 BOOL unicode, BOOL same_thread, enum wm_char_mapping mapping )
1614 {
1615 LRESULT result = 0;
1616 CWPSTRUCT cwp;
1617 CWPRETSTRUCT cwpret;
1618
1619 if (msg & 0x80000000)
1620 {
1621 result = handle_internal_message( hwnd, msg, wparam, lparam );
1622 goto done;
1623 }
1624
1625 /* first the WH_CALLWNDPROC hook */
1626 hwnd = WIN_GetFullHandle( hwnd );
1627 cwp.lParam = lparam;
1628 cwp.wParam = wparam;
1629 cwp.message = msg;
1630 cwp.hwnd = hwnd;
1631 HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, same_thread, (LPARAM)&cwp, unicode );
1632
1633 /* now call the window procedure */
1634 if (!WINPROC_call_window( hwnd, msg, wparam, lparam, &result, unicode, mapping )) goto done;
1635
1636 /* and finally the WH_CALLWNDPROCRET hook */
1637 cwpret.lResult = result;
1638 cwpret.lParam = lparam;
1639 cwpret.wParam = wparam;
1640 cwpret.message = msg;
1641 cwpret.hwnd = hwnd;
1642 HOOK_CallHooks( WH_CALLWNDPROCRET, HC_ACTION, same_thread, (LPARAM)&cwpret, unicode );
1643 done:
1644 return result;
1645 }
1646
1647
1648 /***********************************************************************
1649 * send_parent_notify
1650 *
1651 * Send a WM_PARENTNOTIFY to all ancestors of the given window, unless
1652 * the window has the WS_EX_NOPARENTNOTIFY style.
1653 */
1654 static void send_parent_notify( HWND hwnd, WORD event, WORD idChild, POINT pt )
1655 {
1656 /* pt has to be in the client coordinates of the parent window */
1657 MapWindowPoints( 0, hwnd, &pt, 1 );
1658 for (;;)
1659 {
1660 HWND parent;
1661
1662 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) break;
1663 if (GetWindowLongW( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) break;
1664 if (!(parent = GetParent(hwnd))) break;
1665 if (parent == GetDesktopWindow()) break;
1666 MapWindowPoints( hwnd, parent, &pt, 1 );
1667 hwnd = parent;
1668 SendMessageW( hwnd, WM_PARENTNOTIFY,
1669 MAKEWPARAM( event, idChild ), MAKELPARAM( pt.x, pt.y ) );
1670 }
1671 }
1672
1673
1674 /***********************************************************************
1675 * accept_hardware_message
1676 *
1677 * Tell the server we have passed the message to the app
1678 * (even though we may end up dropping it later on)
1679 */
1680 static void accept_hardware_message( UINT hw_id, BOOL remove, HWND new_hwnd )
1681 {
1682 SERVER_START_REQ( accept_hardware_message )
1683 {
1684 req->hw_id = hw_id;
1685 req->remove = remove;
1686 req->new_win = new_hwnd;
1687 if (wine_server_call( req ))
1688 FIXME("Failed to reply to MSG_HARDWARE message. Message may not be removed from queue.\n");
1689 }
1690 SERVER_END_REQ;
1691 }
1692
1693
1694 /***********************************************************************
1695 * process_keyboard_message
1696 *
1697 * returns TRUE if the contents of 'msg' should be passed to the application
1698 */
1699 static BOOL process_keyboard_message( MSG *msg, UINT hw_id, HWND hwnd_filter,
1700 UINT first, UINT last, BOOL remove )
1701 {
1702 EVENTMSG event;
1703
1704 if (msg->message == WM_KEYDOWN || msg->message == WM_SYSKEYDOWN ||
1705 msg->message == WM_KEYUP || msg->message == WM_SYSKEYUP)
1706 switch (msg->wParam)
1707 {
1708 case VK_LSHIFT: case VK_RSHIFT:
1709 msg->wParam = VK_SHIFT;
1710 break;
1711 case VK_LCONTROL: case VK_RCONTROL:
1712 msg->wParam = VK_CONTROL;
1713 break;
1714 case VK_LMENU: case VK_RMENU:
1715 msg->wParam = VK_MENU;
1716 break;
1717 }
1718
1719 /* FIXME: is this really the right place for this hook? */
1720 event.message = msg->message;
1721 event.hwnd = msg->hwnd;
1722 event.time = msg->time;
1723 event.paramL = (msg->wParam & 0xFF) | (HIWORD(msg->lParam) << 8);
1724 event.paramH = msg->lParam & 0x7FFF;
1725 if (HIWORD(msg->lParam) & 0x0100) event.paramH |= 0x8000; /* special_key - bit */
1726 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1727
1728 /* check message filters */
1729 if (msg->message < first || msg->message > last) return FALSE;
1730 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1731
1732 if (remove)
1733 {
1734 if((msg->message == WM_KEYDOWN) &&
1735 (msg->hwnd != GetDesktopWindow()))
1736 {
1737 /* Handle F1 key by sending out WM_HELP message */
1738 if (msg->wParam == VK_F1)
1739 {
1740 PostMessageW( msg->hwnd, WM_KEYF1, 0, 0 );
1741 }
1742 else if(msg->wParam >= VK_BROWSER_BACK &&
1743 msg->wParam <= VK_LAUNCH_APP2)
1744 {
1745 /* FIXME: Process keystate */
1746 SendMessageW(msg->hwnd, WM_APPCOMMAND, (WPARAM)msg->hwnd, MAKELPARAM(0, (FAPPCOMMAND_KEY | (msg->wParam - VK_BROWSER_BACK + 1))));
1747 }
1748 }
1749 else if (msg->message == WM_KEYUP)
1750 {
1751 /* Handle VK_APPS key by posting a WM_CONTEXTMENU message */
1752 if (msg->wParam == VK_APPS && !MENU_IsMenuActive())
1753 PostMessageW(msg->hwnd, WM_CONTEXTMENU, (WPARAM)msg->hwnd, (LPARAM)-1);
1754 }
1755 }
1756
1757 if (HOOK_CallHooks( WH_KEYBOARD, remove ? HC_ACTION : HC_NOREMOVE,
1758 LOWORD(msg->wParam), msg->lParam, TRUE ))
1759 {
1760 /* skip this message */
1761 HOOK_CallHooks( WH_CBT, HCBT_KEYSKIPPED, LOWORD(msg->wParam), msg->lParam, TRUE );
1762 accept_hardware_message( hw_id, TRUE, 0 );
1763 return FALSE;
1764 }
1765 accept_hardware_message( hw_id, remove, 0 );
1766
1767 if ( msg->message == WM_KEYDOWN || msg->message == WM_KEYUP )
1768 if ( ImmProcessKey(msg->hwnd, GetKeyboardLayout(0), msg->wParam, msg->lParam, 0) )
1769 msg->wParam = VK_PROCESSKEY;
1770
1771 return TRUE;
1772 }
1773
1774
1775 /***********************************************************************
1776 * process_mouse_message
1777 *
1778 * returns TRUE if the contents of 'msg' should be passed to the application
1779 */
1780 static BOOL process_mouse_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1781 UINT first, UINT last, BOOL remove )
1782 {
1783 static MSG clk_msg;
1784
1785 POINT pt;
1786 UINT message;
1787 INT hittest;
1788 EVENTMSG event;
1789 GUITHREADINFO info;
1790 MOUSEHOOKSTRUCT hook;
1791 BOOL eatMsg;
1792
1793 /* find the window to dispatch this mouse message to */
1794
1795 GetGUIThreadInfo( GetCurrentThreadId(), &info );
1796 if (info.hwndCapture)
1797 {
1798 hittest = HTCLIENT;
1799 msg->hwnd = info.hwndCapture;
1800 }
1801 else
1802 {
1803 msg->hwnd = WINPOS_WindowFromPoint( msg->hwnd, msg->pt, &hittest );
1804 }
1805
1806 if (!msg->hwnd || !WIN_IsCurrentThread( msg->hwnd ))
1807 {
1808 accept_hardware_message( hw_id, TRUE, msg->hwnd );
1809 return FALSE;
1810 }
1811
1812 /* FIXME: is this really the right place for this hook? */
1813 event.message = msg->message;
1814 event.time = msg->time;
1815 event.hwnd = msg->hwnd;
1816 event.paramL = msg->pt.x;
1817 event.paramH = msg->pt.y;
1818 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1819
1820 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1821
1822 pt = msg->pt;
1823 message = msg->message;
1824 /* Note: windows has no concept of a non-client wheel message */
1825 if (message != WM_MOUSEWHEEL)
1826 {
1827 if (hittest != HTCLIENT)
1828 {
1829 message += WM_NCMOUSEMOVE - WM_MOUSEMOVE;
1830 msg->wParam = hittest;
1831 }
1832 else
1833 {
1834 /* coordinates don't get translated while tracking a menu */
1835 /* FIXME: should differentiate popups and top-level menus */
1836 if (!(info.flags & GUI_INMENUMODE))
1837 ScreenToClient( msg->hwnd, &pt );
1838 }
1839 }
1840 msg->lParam = MAKELONG( pt.x, pt.y );
1841
1842 /* translate double clicks */
1843
1844 if ((msg->message == WM_LBUTTONDOWN) ||
1845 (msg->message == WM_RBUTTONDOWN) ||
1846 (msg->message == WM_MBUTTONDOWN) ||
1847 (msg->message == WM_XBUTTONDOWN))
1848 {
1849 BOOL update = remove;
1850
1851 /* translate double clicks -
1852 * note that ...MOUSEMOVEs can slip in between
1853 * ...BUTTONDOWN and ...BUTTONDBLCLK messages */
1854
1855 if ((info.flags & (GUI_INMENUMODE|GUI_INMOVESIZE)) ||
1856 hittest != HTCLIENT ||
1857 (GetClassLongA( msg->hwnd, GCL_STYLE ) & CS_DBLCLKS))
1858 {
1859 if ((msg->message == clk_msg.message) &&
1860 (msg->hwnd == clk_msg.hwnd) &&
1861 (msg->wParam == clk_msg.wParam) &&
1862 (msg->time - clk_msg.time < GetDoubleClickTime()) &&
1863 (abs(msg->pt.x - clk_msg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
1864 (abs(msg->pt.y - clk_msg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
1865 {
1866 message += (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
1867 if (update)
1868 {
1869 clk_msg.message = 0; /* clear the double click conditions */
1870 update = FALSE;
1871 }
1872 }
1873 }
1874 if (message < first || message > last) return FALSE;
1875 /* update static double click conditions */
1876 if (update) clk_msg = *msg;
1877 }
1878 else
1879 {
1880 if (message < first || message > last) return FALSE;
1881 }
1882
1883 /* message is accepted now (but may still get dropped) */
1884
1885 hook.pt = msg->pt;
1886 hook.hwnd = msg->hwnd;
1887 hook.wHitTestCode = hittest;
1888 hook.dwExtraInfo = extra_info;
1889 if (HOOK_CallHooks( WH_MOUSE, remove ? HC_ACTION : HC_NOREMOVE,
1890 message, (LPARAM)&hook, TRUE ))
1891 {
1892 hook.pt = msg->pt;
1893 hook.hwnd = msg->hwnd;
1894 hook.wHitTestCode = hittest;
1895 hook.dwExtraInfo = extra_info;
1896 HOOK_CallHooks( WH_CBT, HCBT_CLICKSKIPPED, message, (LPARAM)&hook, TRUE );
1897 accept_hardware_message( hw_id, TRUE, 0 );
1898 return FALSE;
1899 }
1900
1901 if ((hittest == HTERROR) || (hittest == HTNOWHERE))
1902 {
1903 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd,
1904 MAKELONG( hittest, msg->message ));
1905 accept_hardware_message( hw_id, TRUE, 0 );
1906 return FALSE;
1907 }
1908
1909 accept_hardware_message( hw_id, remove, 0 );
1910
1911 if (!remove || info.hwndCapture)
1912 {
1913 msg->message = message;
1914 return TRUE;
1915 }
1916
1917 eatMsg = FALSE;
1918
1919 if ((msg->message == WM_LBUTTONDOWN) ||
1920 (msg->message == WM_RBUTTONDOWN) ||
1921 (msg->message == WM_MBUTTONDOWN) ||
1922 (msg->message == WM_XBUTTONDOWN))
1923 {
1924 /* Send the WM_PARENTNOTIFY,
1925 * note that even for double/nonclient clicks
1926 * notification message is still WM_L/M/RBUTTONDOWN.
1927 */
1928 send_parent_notify( msg->hwnd, msg->message, 0, msg->pt );
1929
1930 /* Activate the window if needed */
1931
1932 if (msg->hwnd != info.hwndActive)
1933 {
1934 HWND hwndTop = msg->hwnd;
1935 while (hwndTop)
1936 {
1937 if ((GetWindowLongW( hwndTop, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) != WS_CHILD) break;
1938 hwndTop = GetParent( hwndTop );
1939 }
1940
1941 if (hwndTop && hwndTop != GetDesktopWindow())
1942 {
1943 LONG ret = SendMessageW( msg->hwnd, WM_MOUSEACTIVATE, (WPARAM)hwndTop,
1944 MAKELONG( hittest, msg->message ) );
1945 switch(ret)
1946 {
1947 case MA_NOACTIVATEANDEAT:
1948 eatMsg = TRUE;
1949 /* fall through */
1950 case MA_NOACTIVATE:
1951 break;
1952 case MA_ACTIVATEANDEAT:
1953 eatMsg = TRUE;
1954 /* fall through */
1955 case MA_ACTIVATE:
1956 case 0:
1957 if (!FOCUS_MouseActivate( hwndTop )) eatMsg = TRUE;
1958 break;
1959 default:
1960 WARN( "unknown WM_MOUSEACTIVATE code %d\n", ret );
1961 break;
1962 }
1963 }
1964 }
1965 }
1966
1967 /* send the WM_SETCURSOR message */
1968
1969 /* Windows sends the normal mouse message as the message parameter
1970 in the WM_SETCURSOR message even if it's non-client mouse message */
1971 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd, MAKELONG( hittest, msg->message ));
1972
1973 msg->message = message;
1974 return !eatMsg;
1975 }
1976
1977
1978 /***********************************************************************
1979 * process_hardware_message
1980 *
1981 * Process a hardware message; return TRUE if message should be passed on to the app
1982 */
1983 static BOOL process_hardware_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1984 UINT first, UINT last, BOOL remove )
1985 {
1986 if (is_keyboard_message( msg->message ))
1987 return process_keyboard_message( msg, hw_id, hwnd_filter, first, last, remove );
1988
1989 if (is_mouse_message( msg->message ))
1990 return process_mouse_message( msg, hw_id, extra_info, hwnd_filter, first, last, remove );
1991
1992 ERR( "unknown message type %x\n", msg->message );
1993 return FALSE;
1994 }
1995
1996
1997 /***********************************************************************
1998 * call_sendmsg_callback
1999 *
2000 * Call the callback function of SendMessageCallback.
2001 */
2002 static inline void call_sendmsg_callback( SENDASYNCPROC callback, HWND hwnd, UINT msg,
2003 ULONG_PTR data, LRESULT result )
2004 {
2005 if (!callback) return;
2006
2007 if (TRACE_ON(relay))
2008 DPRINTF( "%04x:Call message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
2009 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
2010 data, result );
2011 callback( hwnd, msg, data, result );
2012 if (TRACE_ON(relay))
2013 DPRINTF( "%04x:Ret message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
2014 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
2015 data, result );
2016 }
2017
2018
2019 /***********************************************************************
2020 * peek_message
2021 *
2022 * Peek for a message matching the given parameters. Return FALSE if none available.
2023 * All pending sent messages are processed before returning.
2024 */
2025 static BOOL peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags, UINT changed_mask )
2026 {
2027 LRESULT result;
2028 ULONG_PTR extra_info = 0;
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
2033 if (!first && !last) last = ~0;
2034
2035 for (;;)
2036 {
2037 NTSTATUS res;
2038 void *buffer = NULL;
2039 size_t size = 0, buffer_size = 0;
2040
2041 do /* loop while buffer is too small */
2042 {
2043 if (buffer_size && !(buffer = HeapAlloc( GetProcessHeap(), 0, buffer_size )))
2044 return FALSE;
2045 SERVER_START_REQ( get_message )
2046 {
2047 req->flags = flags;
2048 req->get_win = hwnd;
2049 req->get_first = first;
2050 req->get_last = last;
2051 req->hw_id = hw_id;
2052 req->wake_mask = changed_mask & (QS_SENDMESSAGE | QS_SMRESULT);
2053 req->changed_mask = changed_mask;
2054 if (buffer_size) wine_server_set_reply( req, buffer, buffer_size );
2055 if (!(res = wine_server_call( req )))
2056 {
2057 size = wine_server_reply_size( reply );
2058 info.type = reply->type;
2059 info.msg.hwnd = reply->win;
2060 info.msg.message = reply->msg;
2061 info.msg.wParam = reply->wparam;
2062 info.msg.lParam = reply->lparam;
2063 info.msg.time = reply->time;
2064 info.msg.pt.x = reply->x;
2065 info.msg.pt.y = reply->y;
2066 hw_id = reply->hw_id;
2067 extra_info = reply->info;
2068 thread_info->active_hooks = reply->active_hooks;
2069 }
2070 else
2071 {
2072 HeapFree( GetProcessHeap(), 0, buffer );
2073 buffer_size = reply->total;
2074 }
2075 }
2076 SERVER_END_REQ;
2077 } while (res == STATUS_BUFFER_OVERFLOW);
2078
2079 if (res) return FALSE;
2080
2081 TRACE( "got type %d msg %x (%s) hwnd %p wp %lx lp %lx\n",
2082 info.type, info.msg.message,
2083 (info.type == MSG_WINEVENT) ? "MSG_WINEVENT" : SPY_GetMsgName(info.msg.message, info.msg.hwnd),
2084 info.msg.hwnd, info.msg.wParam, info.msg.lParam );
2085
2086 switch(info.type)
2087 {
2088 case MSG_ASCII:
2089 case MSG_UNICODE:
2090 info.flags = ISMEX_SEND;
2091 break;
2092 case MSG_NOTIFY:
2093 info.flags = ISMEX_NOTIFY;
2094 break;
2095 case MSG_CALLBACK:
2096 info.flags = ISMEX_CALLBACK;
2097 break;
2098 case MSG_CALLBACK_RESULT:
2099 if (size >= sizeof(struct callback_msg_data))
2100 {
2101 const struct callback_msg_data *data = (const struct callback_msg_data *)buffer;
2102 call_sendmsg_callback( data->callback, info.msg.hwnd,
2103 info.msg.message, data->data, data->result );
2104 }
2105 goto next;
2106 case MSG_WINEVENT:
2107 if (size >= sizeof(struct winevent_msg_data))
2108 {
2109 WINEVENTPROC hook_proc;
2110 const struct winevent_msg_data *data = (const struct winevent_msg_data *)buffer;
2111
2112 hook_proc = data->hook_proc;
2113 size -= sizeof(*data);
2114 if (size)
2115 {
2116 WCHAR module[MAX_PATH];
2117
2118 size = min( size, (MAX_PATH - 1) * sizeof(WCHAR) );
2119 memcpy( module, buffer, size );
2120 module[size / sizeof(WCHAR)] = 0;
2121 if (!(hook_proc = get_hook_proc( hook_proc, module )))
2122 {
2123 ERR( "invalid winevent hook module name %s\n", debugstr_w(module) );
2124 goto next;
2125 }
2126 }
2127
2128 if (TRACE_ON(relay))
2129 DPRINTF( "%04x:Call winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%lx,child_id=%lx,tid=%04x,time=%x)\n",
2130 GetCurrentThreadId(), hook_proc,
2131 data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2132 info.msg.lParam, data->tid, info.msg.time);
2133
2134 hook_proc( data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2135 info.msg.lParam, data->tid, info.msg.time );
2136
2137 if (TRACE_ON(relay))
2138 DPRINTF( "%04x:Ret winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%lx,child_id=%lx,tid=%04x,time=%x)\n",
2139 GetCurrentThreadId(), hook_proc,
2140 data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2141 info.msg.lParam, data->tid, info.msg.time);
2142 }
2143 goto next;
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 goto next;
2152 }
2153 break;
2154 case MSG_HARDWARE:
2155 if (!process_hardware_message( &info.msg, hw_id, extra_info,
2156 hwnd, first, last, flags & PM_REMOVE ))
2157 {
2158 TRACE("dropping msg %x\n", info.msg.message );
2159 goto next; /* ignore it */
2160 }
2161 thread_info->GetMessagePosVal = MAKELONG( info.msg.pt.x, info.msg.pt.y );
2162 /* fall through */
2163 case MSG_POSTED:
2164 if (info.msg.message & 0x80000000) /* internal message */
2165 {
2166 if (flags & PM_REMOVE)
2167 handle_internal_message( info.msg.hwnd, info.msg.message,
2168 info.msg.wParam, info.msg.lParam );
2169 else
2170 peek_message( msg, info.msg.hwnd, info.msg.message,
2171 info.msg.message, flags | PM_REMOVE, changed_mask );
2172 goto next;
2173 }
2174 if (info.msg.message >= WM_DDE_FIRST && info.msg.message <= WM_DDE_LAST)
2175 {
2176 if (!unpack_dde_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2177 &info.msg.lParam, &buffer, size ))
2178 goto next; /* ignore it */
2179 }
2180 *msg = info.msg;
2181 msg->pt.x = (short)LOWORD( thread_info->GetMessagePosVal );
2182 msg->pt.y = (short)HIWORD( thread_info->GetMessagePosVal );
2183 thread_info->GetMessageTimeVal = info.msg.time;
2184 thread_info->GetMessageExtraInfoVal = extra_info;
2185 HeapFree( GetProcessHeap(), 0, buffer );
2186 HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, flags & PM_REMOVE, (LPARAM)msg, TRUE );
2187 return TRUE;
2188 }
2189
2190 /* if we get here, we have a sent message; call the window procedure */
2191 old_info = thread_info->receive_info;
2192 thread_info->receive_info = &info;
2193 result = call_window_proc( info.msg.hwnd, info.msg.message, info.msg.wParam,
2194 info.msg.lParam, (info.type != MSG_ASCII), FALSE,
2195 WMCHAR_MAP_RECVMESSAGE );
2196 reply_message( &info, result, TRUE );
2197 thread_info->receive_info = old_info;
2198
2199 /* if some PM_QS* flags were specified, only handle sent messages from now on */
2200 if (HIWORD(flags) && !changed_mask) flags = PM_QS_SENDMESSAGE | LOWORD(flags);
2201 next:
2202 HeapFree( GetProcessHeap(), 0, buffer );
2203 }
2204 }
2205
2206
2207 /***********************************************************************
2208 * process_sent_messages
2209 *
2210 * Process all pending sent messages.
2211 */
2212 static inline void process_sent_messages(void)
2213 {
2214 MSG msg;
2215 peek_message( &msg, 0, 0, 0, PM_REMOVE | PM_QS_SENDMESSAGE, 0 );
2216 }
2217
2218
2219 /***********************************************************************
2220 * get_server_queue_handle
2221 *
2222 * Get a handle to the server message queue for the current thread.
2223 */
2224 static HANDLE get_server_queue_handle(void)
2225 {
2226 struct user_thread_info *thread_info = get_user_thread_info();
2227 HANDLE ret;
2228
2229 if (!(ret = thread_info->server_queue))
2230 {
2231 SERVER_START_REQ( get_msg_queue )
2232 {
2233 wine_server_call( req );
2234 ret = reply->handle;
2235 }
2236 SERVER_END_REQ;
2237 thread_info->server_queue = ret;
2238 if (!ret) ERR( "Cannot get server thread queue\n" );
2239 }
2240 return ret;
2241 }
2242
2243
2244 /***********************************************************************
2245 * wait_message_reply
2246 *
2247 * Wait until a sent message gets replied to.
2248 */
2249 static void wait_message_reply( UINT flags )
2250 {
2251 HANDLE server_queue = get_server_queue_handle();
2252
2253 for (;;)
2254 {
2255 unsigned int wake_bits = 0;
2256 DWORD dwlc, res;
2257
2258 SERVER_START_REQ( set_queue_mask )
2259 {
2260 req->wake_mask = QS_SMRESULT | ((flags & SMTO_BLOCK) ? 0 : QS_SENDMESSAGE);
2261 req->changed_mask = req->wake_mask;
2262 req->skip_wait = 1;
2263 if (!wine_server_call( req ))
2264 wake_bits = reply->wake_bits;
2265 }
2266 SERVER_END_REQ;
2267
2268 if (wake_bits & QS_SMRESULT) return; /* got a result */
2269 if (wake_bits & QS_SENDMESSAGE)
2270 {
2271 /* Process the sent message immediately */
2272 process_sent_messages();
2273 continue;
2274 }
2275
2276 /* now wait for it */
2277
2278 ReleaseThunkLock( &dwlc );
2279 res = USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue,
2280 INFINITE, QS_SENDMESSAGE, 0 );
2281 if (dwlc) RestoreThunkLock( dwlc );
2282 }
2283 }
2284
2285 /***********************************************************************
2286 * put_message_in_queue
2287 *
2288 * Put a sent message into the destination queue.
2289 * For inter-process message, reply_size is set to expected size of reply data.
2290 */
2291 static BOOL put_message_in_queue( const struct send_message_info *info, size_t *reply_size )
2292 {
2293 struct packed_message data;
2294 message_data_t msg_data;
2295 unsigned int res;
2296 int i;
2297 timeout_t timeout = TIMEOUT_INFINITE;
2298
2299 /* Check for INFINITE timeout for compatibility with Win9x,
2300 * although Windows >= NT does not do so
2301 */
2302 if (info->type != MSG_NOTIFY &&
2303 info->type != MSG_CALLBACK &&
2304 info->type != MSG_POSTED &&
2305 info->timeout &&
2306 info->timeout != INFINITE)
2307 {
2308 /* timeout is signed despite the prototype */
2309 timeout = (timeout_t)max( 0, (int)info->timeout ) * -10000;
2310 }
2311
2312 data.count = 0;
2313 if (info->type == MSG_OTHER_PROCESS)
2314 {
2315 *reply_size = pack_message( info->hwnd, info->msg, info->wparam, info->lparam, &data );
2316 if (data.count == -1)
2317 {
2318 WARN( "cannot pack message %x\n", info->msg );
2319 return FALSE;
2320 }
2321 }
2322 else if (info->type == MSG_CALLBACK)
2323 {
2324 msg_data.callback.callback = info->callback;
2325 msg_data.callback.data = info->data;
2326 msg_data.callback.result = 0;
2327 data.data[0] = &msg_data;
2328 data.size[0] = sizeof(msg_data.callback);
2329 data.count = 1;
2330 }
2331 else if (info->type == MSG_POSTED && info->msg >= WM_DDE_FIRST && info->msg <= WM_DDE_LAST)
2332 {
2333 return post_dde_message( &data, info );
2334 }
2335
2336 SERVER_START_REQ( send_message )
2337 {
2338 req->id = info->dest_tid;
2339 req->type = info->type;
2340 req->flags = 0;
2341 req->win = info->hwnd;
2342 req->msg = info->msg;
2343 req->wparam = info->wparam;
2344 req->lparam = info->lparam;
2345 req->timeout = timeout;
2346
2347 if (info->flags & SMTO_ABORTIFHUNG) req->flags |= SEND_MSG_ABORT_IF_HUNG;
2348 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
2349 if ((res = wine_server_call( req )))
2350 {
2351 if (res == STATUS_INVALID_PARAMETER)
2352 /* FIXME: find a STATUS_ value for this one */
2353 SetLastError( ERROR_INVALID_THREAD_ID );
2354 else
2355 SetLastError( RtlNtStatusToDosError(res) );
2356 }
2357 }
2358 SERVER_END_REQ;
2359 return !res;
2360 }
2361
2362
2363 /***********************************************************************
2364 * retrieve_reply
2365 *
2366 * Retrieve a message reply from the server.
2367 */
2368 static LRESULT retrieve_reply( const struct send_message_info *info,
2369 size_t reply_size, LRESULT *result )
2370 {
2371 NTSTATUS status;
2372 void *reply_data = NULL;
2373
2374 if (reply_size)
2375 {
2376 if (!(reply_data = HeapAlloc( GetProcessHeap(), 0, reply_size )))
2377 {
2378 WARN( "no memory for reply, will be truncated\n" );
2379 reply_size = 0;
2380 }
2381 }
2382 SERVER_START_REQ( get_message_reply )
2383 {
2384 req->cancel = 1;
2385 if (reply_size) wine_server_set_reply( req, reply_data, reply_size );
2386 if (!(status = wine_server_call( req ))) *result = reply->result;
2387 reply_size = wine_server_reply_size( reply );
2388 }
2389 SERVER_END_REQ;
2390 if (!status && reply_size)
2391 unpack_reply( info->hwnd, info->msg, info->wparam, info->lparam, reply_data, reply_size );
2392
2393 HeapFree( GetProcessHeap(), 0, reply_data );
2394
2395 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx got reply %lx (err=%d)\n",
2396 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam,
2397 info->lparam, *result, status );
2398
2399 /* MSDN states that last error is 0 on timeout, but at least NT4 returns ERROR_TIMEOUT */
2400 if (status) SetLastError( RtlNtStatusToDosError(status) );
2401 return !status;
2402 }
2403
2404
2405 /***********************************************************************
2406 * send_inter_thread_message
2407 */
2408 static LRESULT send_inter_thread_message( const struct send_message_info *info, LRESULT *res_ptr )
2409 {
2410 size_t reply_size = 0;
2411
2412 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx\n",
2413 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam, info->lparam );
2414
2415 USER_CheckNotLock();
2416
2417 if (!put_message_in_queue( info, &reply_size )) return 0;
2418
2419 /* there's no reply to wait for on notify/callback messages */
2420 if (info->type == MSG_NOTIFY || info->type == MSG_CALLBACK) return 1;
2421
2422 wait_message_reply( info->flags );
2423 return retrieve_reply( info, reply_size, res_ptr );
2424 }
2425
2426
2427 /***********************************************************************
2428 * send_inter_thread_callback
2429 */
2430 static LRESULT send_inter_thread_callback( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
2431 LRESULT *result, void *arg )
2432 {
2433 struct send_message_info *info = arg;
2434 info->hwnd = hwnd;
2435 info->msg = msg;
2436 info->wparam = wp;
2437 info->lparam = lp;
2438 return send_inter_thread_message( info, result );
2439 }
2440
2441
2442 /***********************************************************************
2443 * send_message
2444 *
2445 * Backend implementation of the various SendMessage functions.
2446 */
2447 static BOOL send_message( struct send_message_info *info, DWORD_PTR *res_ptr, BOOL unicode )
2448 {
2449 DWORD dest_pid;
2450 BOOL ret;
2451 LRESULT result;
2452
2453 if (is_broadcast(info->hwnd))
2454 {
2455 EnumWindows( broadcast_message_callback, (LPARAM)info );
2456 if (res_ptr) *res_ptr = 1;
2457 return TRUE;
2458 }
2459
2460 if (!(info->dest_tid = GetWindowThreadProcessId( info->hwnd, &dest_pid ))) return FALSE;
2461
2462 if (USER_IsExitingThread( info->dest_tid )) return FALSE;
2463
2464 SPY_EnterMessage( SPY_SENDMESSAGE, info->hwnd, info->msg, info->wparam, info->lparam );
2465
2466 if (info->dest_tid == GetCurrentThreadId())
2467 {
2468 result = call_window_proc( info->hwnd, info->msg, info->wparam, info->lparam,
2469 unicode, TRUE, info->wm_char );
2470 if (info->type == MSG_CALLBACK)
2471 call_sendmsg_callback( info->callback, info->hwnd, info->msg, info->data, result );
2472 ret = TRUE;
2473 }
2474 else
2475 {
2476 if (dest_pid != GetCurrentProcessId() && (info->type == MSG_ASCII || info->type == MSG_UNICODE))
2477 info->type = MSG_OTHER_PROCESS;
2478
2479 /* MSG_ASCII can be sent unconverted except for WM_CHAR; everything else needs to be Unicode */
2480 if (!unicode && is_unicode_message( info->msg ) &&
2481 (info->type != MSG_ASCII || info->msg == WM_CHAR))
2482 ret = WINPROC_CallProcAtoW( send_inter_thread_callback, info->hwnd, info->msg,
2483 info->wparam, info->lparam, &result, info, info->wm_char );
2484 else
2485 ret = send_inter_thread_message( info, &result );
2486 }
2487
2488 SPY_ExitMessage( SPY_RESULT_OK, info->hwnd, info->msg, result, info->wparam, info->lparam );
2489 if (ret && res_ptr) *res_ptr = result;
2490 return ret;
2491 }
2492
2493
2494 /***********************************************************************
2495 * MSG_SendInternalMessageTimeout
2496 *
2497 * Same as SendMessageTimeoutW but sends the message to a specific thread
2498 * without requiring a window handle. Only works for internal Wine messages.
2499 */
2500 LRESULT MSG_SendInternalMessageTimeout( DWORD dest_pid, DWORD dest_tid,
2501 UINT msg, WPARAM wparam, LPARAM lparam,
2502 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2503 {
2504 struct send_message_info info;
2505 LRESULT ret, result;
2506
2507 assert( msg & 0x80000000 ); /* must be an internal Wine message */
2508
2509 info.type = MSG_UNICODE;
2510 info.dest_tid = dest_tid;
2511 info.hwnd = 0;
2512 info.msg = msg;
2513 info.wparam = wparam;
2514 info.lparam = lparam;
2515 info.flags = flags;
2516 info.timeout = timeout;
2517
2518 if (USER_IsExitingThread( dest_tid )) return 0;
2519
2520 if (dest_tid == GetCurrentThreadId())
2521 {
2522 result = handle_internal_message( 0, msg, wparam, lparam );
2523 ret = 1;
2524 }
2525 else
2526 {
2527 if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
2528 ret = send_inter_thread_message( &info, &result );
2529 }
2530 if (ret && res_ptr) *res_ptr = result;
2531 return ret;
2532 }
2533
2534
2535 /***********************************************************************
2536 * SendMessageTimeoutW (USER32.@)
2537 */
2538 LRESULT WINAPI SendMessageTimeoutW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2539 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2540 {
2541 struct send_message_info info;
2542
2543 info.type = MSG_UNICODE;
2544 info.hwnd = hwnd;
2545 info.msg = msg;
2546 info.wparam = wparam;
2547 info.lparam = lparam;
2548 info.flags = flags;
2549 info.timeout = timeout;
2550
2551 return send_message( &info, res_ptr, TRUE );
2552 }
2553
2554 /***********************************************************************
2555 * SendMessageTimeoutA (USER32.@)
2556 */
2557 LRESULT WINAPI SendMessageTimeoutA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2558 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2559 {
2560 struct send_message_info info;
2561
2562 info.type = MSG_ASCII;
2563 info.hwnd = hwnd;
2564 info.msg = msg;
2565 info.wparam = wparam;
2566 info.lparam = lparam;
2567 info.flags = flags;
2568 info.timeout = timeout;
2569 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2570
2571 return send_message( &info, res_ptr, FALSE );
2572 }
2573
2574
2575 /***********************************************************************
2576 * SendMessageW (USER32.@)
2577 */
2578 LRESULT WINAPI SendMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2579 {
2580 DWORD_PTR res = 0;
2581 struct send_message_info info;
2582
2583 info.type = MSG_UNICODE;
2584 info.hwnd = hwnd;
2585 info.msg = msg;
2586 info.wparam = wparam;
2587 info.lparam = lparam;
2588 info.flags = SMTO_NORMAL;
2589 info.timeout = 0;
2590
2591 send_message( &info, &res, TRUE );
2592 return res;
2593 }
2594
2595
2596 /***********************************************************************
2597 * SendMessageA (USER32.@)
2598 */
2599 LRESULT WINAPI SendMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2600 {
2601 DWORD_PTR res = 0;
2602 struct send_message_info info;
2603
2604 info.type = MSG_ASCII;
2605 info.hwnd = hwnd;
2606 info.msg = msg;
2607 info.wparam = wparam;
2608 info.lparam = lparam;
2609 info.flags = SMTO_NORMAL;
2610 info.timeout = 0;
2611 info.wm_char = WMCHAR_MAP_SENDMESSAGE;
2612
2613 send_message( &info, &res, FALSE );
2614 return res;
2615 }
2616
2617
2618 /***********************************************************************
2619 * SendNotifyMessageA (USER32.@)
2620 */
2621 BOOL WINAPI SendNotifyMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2622 {
2623 struct send_message_info info;
2624
2625 if (is_pointer_message(msg))
2626 {
2627 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2628 return FALSE;
2629 }
2630
2631 info.type = MSG_NOTIFY;
2632 info.hwnd = hwnd;
2633 info.msg = msg;
2634 info.wparam = wparam;
2635 info.lparam = lparam;
2636 info.flags = 0;
2637 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2638
2639 return send_message( &info, NULL, FALSE );
2640 }
2641
2642
2643 /***********************************************************************
2644 * SendNotifyMessageW (USER32.@)
2645 */
2646 BOOL WINAPI SendNotifyMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2647 {
2648 struct send_message_info info;
2649
2650 if (is_pointer_message(msg))
2651 {
2652 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2653 return FALSE;
2654 }
2655
2656 info.type = MSG_NOTIFY;
2657 info.hwnd = hwnd;
2658 info.msg = msg;
2659 info.wparam = wparam;
2660 info.lparam = lparam;
2661 info.flags = 0;
2662
2663 return send_message( &info, NULL, TRUE );
2664 }
2665
2666
2667 /***********************************************************************
2668 * SendMessageCallbackA (USER32.@)
2669 */
2670 BOOL WINAPI SendMessageCallbackA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2671 SENDASYNCPROC callback, ULONG_PTR data )
2672 {
2673 struct send_message_info info;
2674
2675 if (is_pointer_message(msg))
2676 {
2677 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2678 return FALSE;
2679 }
2680
2681 info.type = MSG_CALLBACK;
2682 info.hwnd = hwnd;
2683 info.msg = msg;
2684 info.wparam = wparam;
2685 info.lparam = lparam;
2686 info.callback = callback;
2687 info.data = data;
2688 info.flags = 0;
2689 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2690
2691 return send_message( &info, NULL, FALSE );
2692 }
2693
2694
2695 /***********************************************************************
2696 * SendMessageCallbackW (USER32.@)
2697 */
2698 BOOL WINAPI SendMessageCallbackW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2699 SENDASYNCPROC callback, ULONG_PTR data )
2700 {
2701 struct send_message_info info;
2702
2703 if (is_pointer_message(msg))
2704 {
2705 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2706 return FALSE;
2707 }
2708
2709 info.type = MSG_CALLBACK;
2710 info.hwnd = hwnd;
2711 info.msg = msg;
2712 info.wparam = wparam;
2713 info.lparam = lparam;
2714 info.callback = callback;
2715 info.data = data;
2716 info.flags = 0;
2717
2718 return send_message( &info, NULL, TRUE );
2719 }
2720
2721
2722 /***********************************************************************
2723 * ReplyMessage (USER32.@)
2724 */
2725 BOOL WINAPI ReplyMessage( LRESULT result )
2726 {
2727 struct received_message_info *info = get_user_thread_info()->receive_info;
2728
2729 if (!info) return FALSE;
2730 reply_message( info, result, FALSE );
2731 return TRUE;
2732 }
2733
2734
2735 /***********************************************************************
2736 * InSendMessage (USER32.@)
2737 */
2738 BOOL WINAPI InSendMessage(void)
2739 {
2740 return (InSendMessageEx(NULL) & (ISMEX_SEND|ISMEX_REPLIED)) == ISMEX_SEND;
2741 }
2742
2743
2744 /***********************************************************************
2745 * InSendMessageEx (USER32.@)
2746 */
2747 DWORD WINAPI InSendMessageEx( LPVOID reserved )
2748 {
2749 struct received_message_info *info = get_user_thread_info()->receive_info;
2750
2751 if (info) return info->flags;
2752 return ISMEX_NOSEND;
2753 }
2754
2755
2756 /***********************************************************************
2757 * PostMessageA (USER32.@)
2758 */
2759 BOOL WINAPI PostMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2760 {
2761 if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_POSTMESSAGE )) return TRUE;
2762 return PostMessageW( hwnd, msg, wparam, lparam );
2763 }
2764
2765
2766 /***********************************************************************
2767 * PostMessageW (USER32.@)
2768 */
2769 BOOL WINAPI PostMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2770 {
2771 struct send_message_info info;
2772
2773 if (is_pointer_message( msg ))
2774 {
2775 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2776 return FALSE;
2777 }
2778
2779 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx\n",
2780 hwnd, msg, SPY_GetMsgName(msg, hwnd), wparam, lparam );
2781
2782 info.type = MSG_POSTED;
2783 info.hwnd = hwnd;
2784 info.msg = msg;
2785 info.wparam = wparam;
2786 info.lparam = lparam;
2787 info.flags = 0;
2788
2789 if (is_broadcast(hwnd))
2790 {
2791 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2792 return TRUE;
2793 }
2794
2795 if (!hwnd) return PostThreadMessageW( GetCurrentThreadId(), msg, wparam, lparam );
2796
2797 if (!(info.dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2798
2799 if (USER_IsExitingThread( info.dest_tid )) return TRUE;
2800
2801 return put_message_in_queue( &info, NULL );
2802 }
2803
2804
2805 /**********************************************************************
2806 * PostThreadMessageA (USER32.@)
2807 */
2808 BOOL WINAPI PostThreadMessageA( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2809 {
2810 if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_POSTMESSAGE )) return TRUE;
2811 return PostThreadMessageW( thread, msg, wparam, lparam );
2812 }
2813
2814
2815 /**********************************************************************
2816 * PostThreadMessageW (USER32.@)
2817 */
2818 BOOL WINAPI PostThreadMessageW( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2819 {
2820 struct send_message_info info;
2821
2822 if (is_pointer_message( msg ))
2823 {
2824 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2825 return FALSE;
2826 }
2827 if (USER_IsExitingThread( thread )) return TRUE;
2828
2829 info.type = MSG_POSTED;
2830 info.dest_tid = thread;
2831 info.hwnd = 0;
2832 info.msg = msg;
2833 info.wparam = wparam;
2834 info.lparam = lparam;
2835 info.flags = 0;
2836 return put_message_in_queue( &info, NULL );
2837 }
2838
2839
2840 /***********************************************************************
2841 * PostQuitMessage (USER32.@)
2842 *
2843 * Posts a quit message to the current thread's message queue.
2844 *
2845 * PARAMS
2846 * exit_code [I] Exit code to return from message loop.
2847 *
2848 * RETURNS
2849 * Nothing.
2850 *
2851 * NOTES
2852 * This function is not the same as calling:
2853 *|PostThreadMessage(GetCurrentThreadId(), WM_QUIT, exit_code, 0);
2854 * It instead sets a flag in the message queue that signals it to generate
2855 * a WM_QUIT message when there are no other pending sent or posted messages
2856 * in the queue.
2857 */
2858 void WINAPI PostQuitMessage( INT exit_code )
2859 {
2860 SERVER_START_REQ( post_quit_message )
2861 {
2862 req->exit_code = exit_code;
2863 wine_server_call( req );
2864 }
2865 SERVER_END_REQ;
2866 }
2867
2868
2869 /***********************************************************************
2870 * PeekMessageW (USER32.@)
2871 */
2872 BOOL WINAPI PeekMessageW( MSG *msg_out, HWND hwnd, UINT first, UINT last, UINT flags )
2873 {
2874 MSG msg;
2875
2876 USER_CheckNotLock();
2877
2878 /* check for graphics events */
2879 USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
2880
2881 if (!peek_message( &msg, hwnd, first, last, flags, 0 ))
2882 {
2883 if (!(flags & PM_NOYIELD))
2884 {
2885 DWORD count;
2886 ReleaseThunkLock(&count);
2887 NtYieldExecution();
2888 if (count) RestoreThunkLock(count);
2889 }
2890 return FALSE;
2891 }
2892
2893 /* copy back our internal safe copy of message data to msg_out.
2894 * msg_out is a variable from the *program*, so it can't be used
2895 * internally as it can get "corrupted" by our use of SendMessage()
2896 * (back to the program) inside the message handling itself. */
2897 if (!msg_out)
2898 {
2899 SetLastError( ERROR_NOACCESS );
2900 return FALSE;
2901 }
2902 *msg_out = msg;
2903 return TRUE;
2904 }
2905
2906
2907 /***********************************************************************
2908 * PeekMessageA (USER32.@)
2909 */
2910 BOOL WINAPI PeekMessageA( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
2911 {
2912 if (get_pending_wmchar( msg, first, last, (flags & PM_REMOVE) )) return TRUE;
2913 if (!PeekMessageW( msg, hwnd, first, last, flags )) return FALSE;
2914 map_wparam_WtoA( msg, (flags & PM_REMOVE) );
2915 return TRUE;
2916 }
2917
2918
2919 /***********************************************************************
2920 * GetMessageW (USER32.@)
2921 */
2922 BOOL WINAPI GetMessageW( MSG *msg, HWND hwnd, UINT first, UINT last )
2923 {
2924 HANDLE server_queue = get_server_queue_handle();
2925 unsigned int mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
2926
2927 USER_CheckNotLock();
2928
2929 /* check for graphics events */
2930 USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
2931
2932 if (first || last)
2933 {
2934 if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
2935 if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
2936 ((first <= WM_NCMOUSELAST) && (last >= WM_NCMOUSEFIRST)) ) mask |= QS_MOUSE;
2937 if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER;
2938 if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER;
2939 if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT;
2940 }
2941 else mask = QS_ALLINPUT;
2942
2943 while (!peek_message( msg, hwnd, first, last, PM_REMOVE | (mask << 16), mask ))
2944 {
2945 DWORD dwlc;
2946
2947 ReleaseThunkLock( &dwlc );
2948 USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue, INFINITE, mask, 0 );
2949 if (dwlc) RestoreThunkLock( dwlc );
2950 }
2951
2952 return (msg->message != WM_QUIT);
2953 }
2954
2955
2956 /***********************************************************************
2957 * GetMessageA (USER32.@)
2958 */
2959 BOOL WINAPI GetMessageA( MSG *msg, HWND hwnd, UINT first, UINT last )
2960 {
2961 if (get_pending_wmchar( msg, first, last, TRUE )) return TRUE;
2962 GetMessageW( msg, hwnd, first, last );
2963 map_wparam_WtoA( msg, TRUE );
2964 return (msg->message != WM_QUIT);
2965 }
2966
2967
2968 /***********************************************************************
2969 * IsDialogMessageA (USER32.@)
2970 * IsDialogMessage (USER32.@)
2971 */
2972 BOOL WINAPI IsDialogMessageA( HWND hwndDlg, LPMSG pmsg )
2973 {
2974 MSG msg = *pmsg;
2975 map_wparam_AtoW( msg.message, &msg.wParam, WMCHAR_MAP_NOMAPPING );
2976 return IsDialogMessageW( hwndDlg, &msg );
2977 }
2978
2979
2980 /***********************************************************************
2981 * TranslateMessage (USER32.@)
2982 *
2983 * Implementation of TranslateMessage.
2984 *
2985 * TranslateMessage translates virtual-key messages into character-messages,
2986 * as follows :
2987 * WM_KEYDOWN/WM_KEYUP combinations produce a WM_CHAR or WM_DEADCHAR message.
2988 * ditto replacing WM_* with WM_SYS*
2989 * This produces WM_CHAR messages only for keys mapped to ASCII characters
2990 * by the keyboard driver.
2991 *
2992 * If the message is WM_KEYDOWN, WM_KEYUP, WM_SYSKEYDOWN, or WM_SYSKEYUP, the
2993 * return value is nonzero, regardless of the translation.
2994 *
2995 */
2996 BOOL WINAPI TranslateMessage( const MSG *msg )
2997 {
2998 UINT message;
2999 WCHAR wp[2];
3000 BYTE state[256];
3001
3002 if (msg->message < WM_KEYFIRST || msg->message > WM_KEYLAST) return FALSE;
3003 if (msg->message != WM_KEYDOWN && msg->message != WM_SYSKEYDOWN) return TRUE;
3004
3005 TRACE_(key)("Translating key %s (%04lx), scancode %02x\n",
3006 SPY_GetVKeyName(msg->wParam), msg->wParam, LOBYTE(HIWORD(msg->lParam)));
3007
3008 if ( msg->wParam == VK_PROCESSKEY )
3009 return ImmTranslateMessage(msg->hwnd, msg->message, msg->wParam, msg->lParam);
3010
3011 GetKeyboardState( state );
3012 /* FIXME : should handle ToUnicode yielding 2 */
3013 switch (ToUnicode(msg->wParam, HIWORD(msg->lParam), state, wp, 2, 0))
3014 {
3015 case 1:
3016 message = (msg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
3017 TRACE_(key)("1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
3018 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
3019 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
3020 break;
3021
3022 case -1:
3023 message = (msg->message == WM_KEYDOWN) ? WM_DEADCHAR : WM_SYSDEADCHAR;
3024 TRACE_(key)("-1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
3025 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
3026 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
3027 break;
3028 }
3029 return TRUE;
3030 }
3031
3032
3033 /***********************************************************************
3034 * DispatchMessageA (USER32.@)
3035 *
3036 * See DispatchMessageW.
3037 */
3038 LRESULT WINAPI DispatchMessageA( const MSG* msg )
3039 {
3040 LRESULT retval;
3041
3042 /* Process timer messages */
3043 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
3044 {
3045 if (msg->lParam) return CallWindowProcA( (WNDPROC)msg->lParam, msg->hwnd,
3046 msg->message, msg->wParam, GetTickCount() );
3047 }
3048 if (!msg->hwnd) return 0;
3049
3050 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
3051 msg->wParam, msg->lParam );
3052
3053 if (!WINPROC_call_window( msg->hwnd, msg->message, msg->wParam, msg->lParam,
3054 &retval, FALSE, WMCHAR_MAP_DISPATCHMESSAGE ))
3055 {
3056 if (!IsWindow( msg->hwnd )) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
3057 else SetLastError( ERROR_MESSAGE_SYNC_ONLY );
3058 retval = 0;
3059 }
3060
3061 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
3062 msg->wParam, msg->lParam );
3063
3064 if (msg->message == WM_PAINT)
3065 {
3066 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
3067 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
3068 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
3069 DeleteObject( hrgn );
3070 }
3071 return retval;
3072 }
3073
3074
3075 /***********************************************************************
3076 * DispatchMessageW (USER32.@) Process a message
3077 *
3078 * Process the message specified in the structure *_msg_.
3079 *
3080 * If the lpMsg parameter points to a WM_TIMER message and the
3081 * parameter of the WM_TIMER message is not NULL, the lParam parameter
3082 * points to the function that is called instead of the window
3083 * procedure.
3084 *
3085 * The message must be valid.
3086 *
3087 * RETURNS
3088 *
3089 * DispatchMessage() returns the result of the window procedure invoked.
3090 *
3091 * CONFORMANCE
3092 *
3093 * ECMA-234, Win32
3094 *
3095 */
3096 LRESULT WINAPI DispatchMessageW( const MSG* msg )
3097 {
3098 LRESULT retval;
3099
3100 /* Process timer messages */
3101 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
3102 {
3103 if (msg->lParam) return CallWindowProcW( (WNDPROC)msg->lParam, msg->hwnd,
3104 msg->message, msg->wParam, GetTickCount() );
3105 }
3106 if (!msg->hwnd) return 0;
3107
3108 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
3109 msg->wParam, msg->lParam );
3110
3111 if (!WINPROC_call_window( msg->hwnd, msg->message, msg->wParam, msg->lParam,
3112 &retval, TRUE, WMCHAR_MAP_DISPATCHMESSAGE ))
3113 {
3114 if (!IsWindow( msg->hwnd )) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
3115 else SetLastError( ERROR_MESSAGE_SYNC_ONLY );
3116 retval = 0;
3117 }
3118
3119 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
3120 msg->wParam, msg->lParam );
3121
3122 if (msg->message == WM_PAINT)
3123 {
3124 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
3125 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
3126 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
3127 DeleteObject( hrgn );
3128 }
3129 return retval;
3130 }
3131
3132
3133 /***********************************************************************
3134 * GetMessagePos (USER.119)
3135 * GetMessagePos (USER32.@)
3136 *
3137 * The GetMessagePos() function returns a long value representing a
3138 * cursor position, in screen coordinates, when the last message
3139 * retrieved by the GetMessage() function occurs. The x-coordinate is
3140 * in the low-order word of the return value, the y-coordinate is in
3141 * the high-order word. The application can use the MAKEPOINT()
3142 * macro to obtain a POINT structure from the return value.
3143 *
3144 * For the current cursor position, use GetCursorPos().
3145 *
3146 * RETURNS
3147 *
3148 * Cursor position of last message on success, zero on failure.
3149 *
3150 * CONFORMANCE
3151 *
3152 * ECMA-234, Win32
3153 *
3154 */
3155 DWORD WINAPI GetMessagePos(void)
3156 {
3157 return get_user_thread_info()->GetMessagePosVal;
3158 }
3159
3160
3161 /***********************************************************************
3162 * GetMessageTime (USER.120)
3163 * GetMessageTime (USER32.@)
3164 *
3165 * GetMessageTime() returns the message time for the last message
3166 * retrieved by the function. The time is measured in milliseconds with
3167 * the same offset as GetTickCount().
3168 *
3169 * Since the tick count wraps, this is only useful for moderately short
3170 * relative time comparisons.
3171 *
3172 * RETURNS
3173 *
3174 * Time of last message on success, zero on failure.
3175 */
3176 LONG WINAPI GetMessageTime(void)
3177 {
3178 return get_user_thread_info()->GetMessageTimeVal;
3179 }
3180
3181
3182 /***********************************************************************
3183 * GetMessageExtraInfo (USER.288)
3184 * GetMessageExtraInfo (USER32.@)
3185 */
3186 LPARAM WINAPI GetMessageExtraInfo(void)
3187 {
3188 return get_user_thread_info()->GetMessageExtraInfoVal;
3189 }
3190
3191
3192 /***********************************************************************
3193 * SetMessageExtraInfo (USER32.@)
3194 */
3195 LPARAM WINAPI SetMessageExtraInfo(LPARAM lParam)
3196 {
3197 struct user_thread_info *thread_info = get_user_thread_info();
3198 LONG old_value = thread_info->GetMessageExtraInfoVal;
3199 thread_info->GetMessageExtraInfoVal = lParam;
3200 return old_value;
3201 }
3202
3203
3204 /***********************************************************************
3205 * WaitMessage (USER.112) Suspend thread pending messages
3206 * WaitMessage (USER32.@) Suspend thread pending messages
3207 *
3208 * WaitMessage() suspends a thread until events appear in the thread's
3209 * queue.
3210 */
3211 BOOL WINAPI WaitMessage(void)
3212 {
3213 return (MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, QS_ALLINPUT, 0 ) != WAIT_FAILED);
3214 }
3215
3216
3217 /***********************************************************************
3218 * MsgWaitForMultipleObjectsEx (USER32.@)
3219 */
3220 DWORD WINAPI MsgWaitForMultipleObjectsEx( DWORD count, CONST HANDLE *pHandles,
3221 DWORD timeout, DWORD mask, DWORD flags )
3222 {
3223 HANDLE handles[MAXIMUM_WAIT_OBJECTS];
3224 DWORD i, ret, lock;
3225
3226 if (count > MAXIMUM_WAIT_OBJECTS-1)
3227 {
3228 SetLastError( ERROR_INVALID_PARAMETER );
3229 return WAIT_FAILED;
3230 }
3231
3232 /* set the queue mask */
3233 SERVER_START_REQ( set_queue_mask )
3234 {
3235 req->wake_mask = (flags & MWMO_INPUTAVAILABLE) ? mask : 0;
3236 req->changed_mask = mask;
3237 req->skip_wait = 0;
3238 wine_server_call( req );
3239 }
3240 SERVER_END_REQ;
3241
3242 /* add the queue to the handle list */
3243 for (i = 0; i < count; i++) handles[i] = pHandles[i];
3244 handles[count] = get_server_queue_handle();
3245
3246 ReleaseThunkLock( &lock );
3247 ret = USER_Driver->pMsgWaitForMultipleObjectsEx( count+1, handles, timeout, mask, flags );
3248 if (lock) RestoreThunkLock( lock );
3249 return ret;
3250 }
3251
3252
3253 /***********************************************************************
3254 * MsgWaitForMultipleObjects (USER32.@)
3255 */
3256 DWORD WINAPI MsgWaitForMultipleObjects( DWORD count, CONST HANDLE *handles,
3257 BOOL wait_all, DWORD timeout, DWORD mask )
3258 {
3259 return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
3260 wait_all ? MWMO_WAITALL : 0 );
3261 }
3262
3263
3264 /***********************************************************************
3265 * WaitForInputIdle (USER32.@)
3266 */
3267 DWORD WINAPI WaitForInputIdle( HANDLE hProcess, DWORD dwTimeOut )
3268 {
3269 DWORD start_time, elapsed, ret;
3270 HANDLE handles[2];
3271
3272 handles[0] = hProcess;
3273 SERVER_START_REQ( get_process_idle_event )
3274 {
3275 req->handle = hProcess;
3276 if (!(ret = wine_server_call_err( req ))) handles[1] = reply->event;
3277 }
3278 SERVER_END_REQ;
3279 if (ret) return WAIT_FAILED; /* error */
3280 if (!handles[1]) return 0; /* no event to wait on */
3281
3282 start_time = GetTickCount();
3283 elapsed = 0;
3284
3285 TRACE("waiting for %p\n", handles[1] );
3286 do
3287 {
3288 ret = MsgWaitForMultipleObjects ( 2, handles, FALSE, dwTimeOut - elapsed, QS_SENDMESSAGE );
3289 switch (ret)
3290 {
3291 case WAIT_OBJECT_0:
3292 return WAIT_FAILED;
3293 case WAIT_OBJECT_0+2:
3294 process_sent_messages();
3295 break;
3296 case WAIT_TIMEOUT:
3297 case WAIT_FAILED:
3298 TRACE("timeout or error\n");
3299 return ret;
3300 default:
3301 TRACE("finished\n");
3302 return 0;
3303 }
3304 if (dwTimeOut != INFINITE)
3305 {
3306 elapsed = GetTickCount() - start_time;
3307 if (elapsed > dwTimeOut)
3308 break;
3309 }
3310 }
3311 while (1);
3312
3313 return WAIT_TIMEOUT;
3314 }
3315
3316
3317 /***********************************************************************
3318 * UserYield (USER.332)
3319 */
3320 void WINAPI UserYield16(void)
3321 {
3322 DWORD count;
3323
3324 /* Handle sent messages */
3325 process_sent_messages();
3326
3327 /* Yield */
3328 ReleaseThunkLock(&count);
3329
3330 if (count)
3331 {
3332 RestoreThunkLock(count);
3333 /* Handle sent messages again */
3334 process_sent_messages();
3335 }
3336 }
3337
3338
3339 /***********************************************************************
3340 * RegisterWindowMessageA (USER32.@)
3341 * RegisterWindowMessage (USER.118)
3342 */
3343 UINT WINAPI RegisterWindowMessageA( LPCSTR str )
3344 {
3345 UINT ret = GlobalAddAtomA(str);
3346 TRACE("%s, ret=%x\n", str, ret);
3347 return ret;
3348 }
3349
3350
3351 /***********************************************************************
3352 * RegisterWindowMessageW (USER32.@)
3353 */
3354 UINT WINAPI RegisterWindowMessageW( LPCWSTR str )
3355 {
3356 UINT ret = GlobalAddAtomW(str);
3357 TRACE("%s ret=%x\n", debugstr_w(str), ret);
3358 return ret;
3359 }
3360
3361 typedef struct BroadcastParm
3362 {
3363 DWORD flags;
3364 LPDWORD recipients;
3365 UINT msg;
3366 WPARAM wp;
3367 LPARAM lp;
3368 DWORD success;
3369 HWINSTA winsta;
3370 } BroadcastParm;
3371
3372 static BOOL CALLBACK bcast_childwindow( HWND hw, LPARAM lp )
3373 {
3374 BroadcastParm *parm = (BroadcastParm*)lp;
3375 DWORD_PTR retval = 0;
3376 LRESULT lresult;
3377
3378 if (parm->flags & BSF_IGNORECURRENTTASK && WIN_IsCurrentProcess(hw))
3379 {
3380 TRACE("Not telling myself %p\n", hw);
3381 return TRUE;
3382 }
3383
3384 /* I don't know 100% for sure if this is what Windows does, but it fits the tests */
3385 if (parm->flags & BSF_QUERY)
3386 {
3387 TRACE("Telling window %p using SendMessageTimeout\n", hw);
3388
3389 /* Not tested for conflicting flags */
3390 if (parm->flags & BSF_FORCEIFHUNG || parm->flags & BSF_NOHANG)
3391 lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_ABORTIFHUNG, 2000, &retval );
3392 else if (parm->flags & BSF_NOTIMEOUTIFNOTHUNG)
3393 lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_NOTIMEOUTIFNOTHUNG, 2000, &retval );
3394 else
3395 lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_NORMAL, 2000, &retval );
3396
3397 if (!lresult && GetLastError() == ERROR_TIMEOUT)
3398 {
3399 WARN("Timed out!\n");
3400 if (!(parm->flags & BSF_FORCEIFHUNG))
3401 goto fail;
3402 }
3403 if (retval == BROADCAST_QUERY_DENY)
3404 goto fail;
3405
3406 return TRUE;
3407
3408 fail:
3409 parm->success = 0;
3410 return FALSE;
3411 }
3412 else if (parm->flags & BSF_POSTMESSAGE)
3413 {
3414 TRACE("Telling window %p using PostMessage\n", hw);
3415 PostMessageW( hw, parm->msg, parm->wp, parm->lp );
3416 }
3417 else
3418 {
3419 TRACE("Telling window %p using SendNotifyMessage\n", hw);
3420 SendNotifyMessageW( hw, parm->msg, parm->wp, parm->lp );
3421 }
3422
3423 return TRUE;
3424 }
3425
3426 static BOOL CALLBACK bcast_desktop( LPWSTR desktop, LPARAM lp )
3427 {
3428 BOOL ret;
3429 HDESK hdesktop;
3430 BroadcastParm *parm = (BroadcastParm*)lp;
3431
3432 TRACE("desktop: %s\n", debugstr_w( desktop ));
3433
3434 hdesktop = open_winstation_desktop( parm->winsta, desktop, 0, FALSE, DESKTOP_ENUMERATE|DESKTOP_WRITEOBJECTS|STANDARD_RIGHTS_WRITE );
3435 if (!hdesktop)
3436 {
3437 FIXME("Could not open desktop %s\n", debugstr_w(desktop));
3438 return TRUE;
3439 }
3440
3441 ret = EnumDesktopWindows( hdesktop, bcast_childwindow, lp );
3442 CloseDesktop(hdesktop);
3443 TRACE("-->%d\n", ret);
3444 return parm->success;
3445 }
3446
3447 static BOOL CALLBACK bcast_winsta( LPWSTR winsta, LPARAM lp )
3448 {
3449 BOOL ret;
3450 HWINSTA hwinsta = OpenWindowStationW( winsta, FALSE, WINSTA_ENUMDESKTOPS );
3451 TRACE("hwinsta: %p/%s/%08x\n", hwinsta, debugstr_w( winsta ), GetLastError());
3452 if (!hwinsta)
3453 return TRUE;
3454 ((BroadcastParm *)lp)->winsta = hwinsta;
3455 ret = EnumDesktopsW( hwinsta, bcast_desktop, lp );
3456 CloseWindowStation( hwinsta );
3457 TRACE("-->%d\n", ret);
3458 return ret;
3459 }
3460
3461 /***********************************************************************
3462 * BroadcastSystemMessageA (USER32.@)
3463 * BroadcastSystemMessage (USER32.@)
3464 */
3465 LONG WINAPI BroadcastSystemMessageA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3466 {
3467 return BroadcastSystemMessageExA( flags, recipients, msg, wp, lp, NULL );
3468 }
3469
3470
3471 /***********************************************************************
3472 * BroadcastSystemMessageW (USER32.@)
3473 */
3474 LONG WINAPI BroadcastSystemMessageW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3475 {
3476 return BroadcastSystemMessageExW( flags, recipients, msg, wp, lp, NULL );
3477 }
3478
3479 /***********************************************************************
3480 * BroadcastSystemMessageExA (USER32.@)
3481 */
3482 LONG WINAPI BroadcastSystemMessageExA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp, PBSMINFO pinfo )
3483 {
3484 map_wparam_AtoW( msg, &wp, WMCHAR_MAP_NOMAPPING );
3485 return BroadcastSystemMessageExW( flags, recipients, msg, wp, lp, NULL );
3486 }
3487
3488
3489 /***********************************************************************
3490 * BroadcastSystemMessageExW (USER32.@)
3491 */
3492 LONG WINAPI BroadcastSystemMessageExW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp, PBSMINFO pinfo )
3493 {
3494 BroadcastParm parm;
3495 DWORD recips = BSM_ALLCOMPONENTS;
3496 BOOL ret = TRUE;
3497 static const DWORD all_flags = ( BSF_QUERY | BSF_IGNORECURRENTTASK | BSF_FLUSHDISK | BSF_NOHANG
3498 | BSF_POSTMESSAGE | BSF_FORCEIFHUNG | BSF_NOTIMEOUTIFNOTHUNG
3499 | BSF_ALLOWSFW | BSF_SENDNOTIFYMESSAGE | BSF_RETURNHDESK | BSF_LUID );
3500
3501 TRACE("Flags: %08x, recipients: %p(0x%x), msg: %04x, wparam: %08lx, lparam: %08lx\n", flags, recipients,
3502 (recipients ? *recipients : recips), msg, wp, lp);
3503
3504 if (flags & ~all_flags)
3505 {
3506 SetLastError(ERROR_INVALID_PARAMETER);
3507 return 0;
3508 }
3509
3510 if (!recipients)
3511 recipients = &recips;
3512
3513 if ( pinfo && flags & BSF_QUERY )
3514 FIXME("Not returning PBSMINFO information yet\n");
3515
3516 parm.flags = flags;
3517 parm.recipients = recipients;
3518 parm.msg = msg;
3519 parm.wp = wp;
3520 parm.lp = lp;
3521 parm.success = TRUE;
3522
3523 if (*recipients & BSM_ALLDESKTOPS || *recipients == BSM_ALLCOMPONENTS)
3524 ret = EnumWindowStationsW(bcast_winsta, (LONG_PTR)&parm);
3525 else if (*recipients & BSM_APPLICATIONS)
3526 {
3527 EnumWindows(bcast_childwindow, (LONG_PTR)&parm);
3528 ret = parm.success;
3529 }
3530 else
3531 FIXME("Recipients %08x not supported!\n", *recipients);
3532
3533 return ret;
3534 }
3535
3536 /***********************************************************************
3537 * SetMessageQueue (USER32.@)
3538 */
3539 BOOL WINAPI SetMessageQueue( INT size )
3540 {
3541 /* now obsolete the message queue will be expanded dynamically as necessary */
3542 return TRUE;
3543 }
3544
3545
3546 /***********************************************************************
3547 * MessageBeep (USER32.@)
3548 */
3549 BOOL WINAPI MessageBeep( UINT i )
3550 {
3551 BOOL active = TRUE;
3552 SystemParametersInfoA( SPI_GETBEEP, 0, &active, FALSE );
3553 if (active) USER_Driver->pBeep();
3554 return TRUE;
3555 }
3556
3557
3558 /***********************************************************************
3559 * SetTimer (USER32.@)
3560 */
3561 UINT_PTR WINAPI SetTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3562 {
3563 UINT_PTR ret;
3564 WNDPROC winproc = 0;
3565
3566 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, NULL );
3567
3568 SERVER_START_REQ( set_win_timer )
3569 {
3570 req->win = hwnd;
3571 req->msg = WM_TIMER;
3572 req->id = id;
3573 req->rate = max( timeout, SYS_TIMER_RATE );
3574 req->lparam = (unsigned long)winproc;
3575 if (!wine_server_call_err( req ))
3576 {
3577 ret = reply->id;
3578 if (!ret) ret = TRUE;
3579 }
3580 else ret = 0;
3581 }
3582 SERVER_END_REQ;
3583
3584 TRACE("Added %p %lx %p timeout %d\n", hwnd, id, winproc, timeout );
3585 return ret;
3586 }
3587
3588
3589 /***********************************************************************
3590 * SetSystemTimer (USER32.@)
3591 */
3592 UINT_PTR WINAPI SetSystemTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3593 {
3594 UINT_PTR ret;
3595 WNDPROC winproc = 0;
3596
3597 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, NULL );
3598
3599 SERVER_START_REQ( set_win_timer )
3600 {
3601 req->win = hwnd;
3602 req->msg = WM_SYSTIMER;
3603 req->id = id;
3604 req->rate = max( timeout, SYS_TIMER_RATE );
3605 req->lparam = (unsigned long)winproc;
3606 if (!wine_server_call_err( req ))
3607 {
3608 ret = reply->id;
3609 if (!ret) ret = TRUE;
3610 }
3611 else ret = 0;
3612 }
3613 SERVER_END_REQ;
3614
3615 TRACE("Added %p %lx %p timeout %d\n", hwnd, id, winproc, timeout );
3616 return ret;
3617 }
3618
3619
3620 /***********************************************************************
3621 * KillTimer (USER32.@)
3622 */
3623 BOOL WINAPI KillTimer( HWND hwnd, UINT_PTR id )
3624 {
3625 BOOL ret;
3626
3627 SERVER_START_REQ( kill_win_timer )
3628 {
3629 req->win = hwnd;
3630 req->msg = WM_TIMER;
3631 req->id = id;
3632 ret = !wine_server_call_err( req );
3633 }
3634 SERVER_END_REQ;
3635 return ret;
3636 }
3637
3638
3639 /***********************************************************************
3640 * KillSystemTimer (USER32.@)
3641 */
3642 BOOL WINAPI KillSystemTimer( HWND hwnd, UINT_PTR id )
3643 {
3644 BOOL ret;
3645
3646 SERVER_START_REQ( kill_win_timer )
3647 {
3648 req->win = hwnd;
3649 req->msg = WM_SYSTIMER;
3650 req->id = id;
3651 ret = !wine_server_call_err( req );
3652 }
3653 SERVER_END_REQ;
3654 return ret;
3655 }
3656
3657
3658 /**********************************************************************
3659 * GetGUIThreadInfo (USER32.@)
3660 */
3661 BOOL WINAPI GetGUIThreadInfo( DWORD id, GUITHREADINFO *info )
3662 {
3663 BOOL ret;
3664
3665 SERVER_START_REQ( get_thread_input )
3666 {
3667 req->tid = id;
3668 if ((ret = !wine_server_call_err( req )))
3669 {
3670 info->flags = 0;
3671 info->hwndActive = reply->active;
3672 info->hwndFocus = reply->focus;
3673 info->hwndCapture = reply->capture;
3674 info->hwndMenuOwner = reply->menu_owner;
3675 info->hwndMoveSize = reply->move_size;
3676 info->hwndCaret = reply->caret;
3677 info->rcCaret.left = reply->rect.left;
3678 info->rcCaret.top = reply->rect.top;
3679 info->rcCaret.right = reply->rect.right;
3680 info->rcCaret.bottom = reply->rect.bottom;
3681 if (reply->menu_owner) info->flags |= GUI_INMENUMODE;
3682 if (reply->move_size) info->flags |= GUI_INMOVESIZE;
3683 if (reply->caret) info->flags |= GUI_CARETBLINKING;
3684 }
3685 }
3686 SERVER_END_REQ;
3687 return ret;
3688 }
3689
3690
3691 /******************************************************************
3692 * IsHungAppWindow (USER32.@)
3693 *
3694 */
3695 BOOL WINAPI IsHungAppWindow( HWND hWnd )
3696 {
3697 BOOL ret;
3698
3699 SERVER_START_REQ( is_window_hung )
3700 {
3701 req->win = hWnd;
3702 ret = !wine_server_call_err( req ) && reply->is_hung;
3703 }
3704 SERVER_END_REQ;
3705 return ret;
3706 }
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