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comctl32: Some simplifications.
[wine/wine64.git] / dlls / user32 / message.c
blob522ff386db4952d1124d54e9960f9d5906ce5490
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 #define MAX_SENDMSG_RECURSION 64
56
57 #define SYS_TIMER_RATE 55 /* min. timer rate in ms (actually 54.925)*/
58
59 /* description of the data fields that need to be packed along with a sent message */
60 struct packed_message
61 {
62 int count;
63 const void *data[MAX_PACK_COUNT];
64 size_t size[MAX_PACK_COUNT];
65 };
66
67 /* info about the message currently being received by the current thread */
68 struct received_message_info
69 {
70 enum message_type type;
71 MSG msg;
72 UINT flags; /* InSendMessageEx return flags */
73 };
74
75 /* structure to group all parameters for sent messages of the various kinds */
76 struct send_message_info
77 {
78 enum message_type type;
79 DWORD dest_tid;
80 HWND hwnd;
81 UINT msg;
82 WPARAM wparam;
83 LPARAM lparam;
84 UINT flags; /* flags for SendMessageTimeout */
85 UINT timeout; /* timeout for SendMessageTimeout */
86 SENDASYNCPROC callback; /* callback function for SendMessageCallback */
87 ULONG_PTR data; /* callback data */
88 enum wm_char_mapping wm_char;
89 };
90
91
92 /* Message class descriptor */
93 static const WCHAR messageW[] = {'M','e','s','s','a','g','e',0};
94 static LRESULT WINAPI message_winproc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam );
95 const struct builtin_class_descr MESSAGE_builtin_class =
96 {
97 messageW, /* name */
98 0, /* style */
99 NULL, /* procA (winproc is Unicode only) */
100 message_winproc, /* procW */
101 0, /* extra */
102 IDC_ARROW, /* cursor */
103 0 /* brush */
104 };
105
106
107
108 /* flag for messages that contain pointers */
109 /* 32 messages per entry, messages 0..31 map to bits 0..31 */
110
111 #define SET(msg) (1 << ((msg) & 31))
112
113 static const unsigned int message_pointer_flags[] =
114 {
115 /* 0x00 - 0x1f */
116 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) |
117 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
118 /* 0x20 - 0x3f */
119 SET(WM_GETMINMAXINFO) | SET(WM_DRAWITEM) | SET(WM_MEASUREITEM) | SET(WM_DELETEITEM) |
120 SET(WM_COMPAREITEM),
121 /* 0x40 - 0x5f */
122 SET(WM_WINDOWPOSCHANGING) | SET(WM_WINDOWPOSCHANGED) | SET(WM_COPYDATA) |
123 SET(WM_NOTIFY) | SET(WM_HELP),
124 /* 0x60 - 0x7f */
125 SET(WM_STYLECHANGING) | SET(WM_STYLECHANGED),
126 /* 0x80 - 0x9f */
127 SET(WM_NCCREATE) | SET(WM_NCCALCSIZE) | SET(WM_GETDLGCODE),
128 /* 0xa0 - 0xbf */
129 SET(EM_GETSEL) | SET(EM_GETRECT) | SET(EM_SETRECT) | SET(EM_SETRECTNP),
130 /* 0xc0 - 0xdf */
131 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETTABSTOPS),
132 /* 0xe0 - 0xff */
133 SET(SBM_GETRANGE) | SET(SBM_SETSCROLLINFO) | SET(SBM_GETSCROLLINFO) | SET(SBM_GETSCROLLBARINFO),
134 /* 0x100 - 0x11f */
135 0,
136 /* 0x120 - 0x13f */
137 0,
138 /* 0x140 - 0x15f */
139 SET(CB_GETEDITSEL) | SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) |
140 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) |
141 SET(CB_GETDROPPEDCONTROLRECT) | SET(CB_FINDSTRINGEXACT),
142 /* 0x160 - 0x17f */
143 0,
144 /* 0x180 - 0x19f */
145 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_SELECTSTRING) |
146 SET(LB_DIR) | SET(LB_FINDSTRING) |
147 SET(LB_GETSELITEMS) | SET(LB_SETTABSTOPS) | SET(LB_ADDFILE) | SET(LB_GETITEMRECT),
148 /* 0x1a0 - 0x1bf */
149 SET(LB_FINDSTRINGEXACT),
150 /* 0x1c0 - 0x1df */
151 0,
152 /* 0x1e0 - 0x1ff */
153 0,
154 /* 0x200 - 0x21f */
155 SET(WM_NEXTMENU) | SET(WM_SIZING) | SET(WM_MOVING) | SET(WM_DEVICECHANGE),
156 /* 0x220 - 0x23f */
157 SET(WM_MDICREATE) | SET(WM_MDIGETACTIVE) | SET(WM_DROPOBJECT) |
158 SET(WM_QUERYDROPOBJECT) | SET(WM_DRAGLOOP) | SET(WM_DRAGSELECT) | SET(WM_DRAGMOVE),
159 /* 0x240 - 0x25f */
160 0,
161 /* 0x260 - 0x27f */
162 0,
163 /* 0x280 - 0x29f */
164 0,
165 /* 0x2a0 - 0x2bf */
166 0,
167 /* 0x2c0 - 0x2df */
168 0,
169 /* 0x2e0 - 0x2ff */
170 0,
171 /* 0x300 - 0x31f */
172 SET(WM_ASKCBFORMATNAME)
173 };
174
175 /* flags for messages that contain Unicode strings */
176 static const unsigned int message_unicode_flags[] =
177 {
178 /* 0x00 - 0x1f */
179 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) | SET(WM_GETTEXTLENGTH) |
180 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
181 /* 0x20 - 0x3f */
182 SET(WM_CHARTOITEM),
183 /* 0x40 - 0x5f */
184 0,
185 /* 0x60 - 0x7f */
186 0,
187 /* 0x80 - 0x9f */
188 SET(WM_NCCREATE),
189 /* 0xa0 - 0xbf */
190 0,
191 /* 0xc0 - 0xdf */
192 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETPASSWORDCHAR),
193 /* 0xe0 - 0xff */
194 0,
195 /* 0x100 - 0x11f */
196 SET(WM_CHAR) | SET(WM_DEADCHAR) | SET(WM_SYSCHAR) | SET(WM_SYSDEADCHAR),
197 /* 0x120 - 0x13f */
198 SET(WM_MENUCHAR),
199 /* 0x140 - 0x15f */
200 SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) | SET(CB_GETLBTEXTLEN) |
201 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) | SET(CB_FINDSTRINGEXACT),
202 /* 0x160 - 0x17f */
203 0,
204 /* 0x180 - 0x19f */
205 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_GETTEXTLEN) |
206 SET(LB_SELECTSTRING) | SET(LB_DIR) | SET(LB_FINDSTRING) | SET(LB_ADDFILE),
207 /* 0x1a0 - 0x1bf */
208 SET(LB_FINDSTRINGEXACT),
209 /* 0x1c0 - 0x1df */
210 0,
211 /* 0x1e0 - 0x1ff */
212 0,
213 /* 0x200 - 0x21f */
214 0,
215 /* 0x220 - 0x23f */
216 SET(WM_MDICREATE),
217 /* 0x240 - 0x25f */
218 0,
219 /* 0x260 - 0x27f */
220 0,
221 /* 0x280 - 0x29f */
222 SET(WM_IME_CHAR),
223 /* 0x2a0 - 0x2bf */
224 0,
225 /* 0x2c0 - 0x2df */
226 0,
227 /* 0x2e0 - 0x2ff */
228 0,
229 /* 0x300 - 0x31f */
230 SET(WM_PAINTCLIPBOARD) | SET(WM_SIZECLIPBOARD) | SET(WM_ASKCBFORMATNAME)
231 };
232
233 /* check whether a given message type includes pointers */
234 static inline int is_pointer_message( UINT message )
235 {
236 if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
237 return (message_pointer_flags[message / 32] & SET(message)) != 0;
238 }
239
240 /* check whether a given message type contains Unicode (or ASCII) chars */
241 static inline int is_unicode_message( UINT message )
242 {
243 if (message >= 8*sizeof(message_unicode_flags)) return FALSE;
244 return (message_unicode_flags[message / 32] & SET(message)) != 0;
245 }
246
247 #undef SET
248
249 /* add a data field to a packed message */
250 static inline void push_data( struct packed_message *data, const void *ptr, size_t size )
251 {
252 data->data[data->count] = ptr;
253 data->size[data->count] = size;
254 data->count++;
255 }
256
257 /* add a string to a packed message */
258 static inline void push_string( struct packed_message *data, LPCWSTR str )
259 {
260 push_data( data, str, (strlenW(str) + 1) * sizeof(WCHAR) );
261 }
262
263 /* make sure that the buffer contains a valid null-terminated Unicode string */
264 static inline BOOL check_string( LPCWSTR str, size_t size )
265 {
266 for (size /= sizeof(WCHAR); size; size--, str++)
267 if (!*str) return TRUE;
268 return FALSE;
269 }
270
271 /* make sure that there is space for 'size' bytes in buffer, growing it if needed */
272 static inline void *get_buffer_space( void **buffer, size_t size )
273 {
274 void *ret;
275
276 if (*buffer)
277 {
278 if (!(ret = HeapReAlloc( GetProcessHeap(), 0, *buffer, size )))
279 HeapFree( GetProcessHeap(), 0, *buffer );
280 }
281 else ret = HeapAlloc( GetProcessHeap(), 0, size );
282
283 *buffer = ret;
284 return ret;
285 }
286
287 /* check whether a combobox expects strings or ids in CB_ADDSTRING/CB_INSERTSTRING */
288 static inline BOOL combobox_has_strings( HWND hwnd )
289 {
290 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
291 return (!(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) || (style & CBS_HASSTRINGS));
292 }
293
294 /* check whether a listbox expects strings or ids in LB_ADDSTRING/LB_INSERTSTRING */
295 static inline BOOL listbox_has_strings( HWND hwnd )
296 {
297 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
298 return (!(style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE)) || (style & LBS_HASSTRINGS));
299 }
300
301 /* check whether message is in the range of keyboard messages */
302 static inline BOOL is_keyboard_message( UINT message )
303 {
304 return (message >= WM_KEYFIRST && message <= WM_KEYLAST);
305 }
306
307 /* check whether message is in the range of mouse messages */
308 static inline BOOL is_mouse_message( UINT message )
309 {
310 return ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) ||
311 (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST));
312 }
313
314 /* check whether message matches the specified hwnd filter */
315 static inline BOOL check_hwnd_filter( const MSG *msg, HWND hwnd_filter )
316 {
317 if (!hwnd_filter || hwnd_filter == GetDesktopWindow()) return TRUE;
318 return (msg->hwnd == hwnd_filter || IsChild( hwnd_filter, msg->hwnd ));
319 }
320
321 /* check for pending WM_CHAR message with DBCS trailing byte */
322 static inline BOOL get_pending_wmchar( MSG *msg, UINT first, UINT last, BOOL remove )
323 {
324 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
325
326 if (!data || !data->get_msg.message) return FALSE;
327 if ((first || last) && (first > WM_CHAR || last < WM_CHAR)) return FALSE;
328 if (!msg) return FALSE;
329 *msg = data->get_msg;
330 if (remove) data->get_msg.message = 0;
331 return TRUE;
332 }
333
334
335 /***********************************************************************
336 * message_winproc
337 *
338 * Window procedure for "Message" windows (HWND_MESSAGE parent).
339 */
340 static LRESULT WINAPI message_winproc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
341 {
342 if (message == WM_NCCREATE) return TRUE;
343 return 0; /* all other messages are ignored */
344 }
345
346
347 /***********************************************************************
348 * broadcast_message_callback
349 *
350 * Helper callback for broadcasting messages.
351 */
352 static BOOL CALLBACK broadcast_message_callback( HWND hwnd, LPARAM lparam )
353 {
354 struct send_message_info *info = (struct send_message_info *)lparam;
355 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & (WS_POPUP|WS_CAPTION))) return TRUE;
356 switch(info->type)
357 {
358 case MSG_UNICODE:
359 SendMessageTimeoutW( hwnd, info->msg, info->wparam, info->lparam,
360 info->flags, info->timeout, NULL );
361 break;
362 case MSG_ASCII:
363 SendMessageTimeoutA( hwnd, info->msg, info->wparam, info->lparam,
364 info->flags, info->timeout, NULL );
365 break;
366 case MSG_NOTIFY:
367 SendNotifyMessageW( hwnd, info->msg, info->wparam, info->lparam );
368 break;
369 case MSG_CALLBACK:
370 SendMessageCallbackW( hwnd, info->msg, info->wparam, info->lparam,
371 info->callback, info->data );
372 break;
373 case MSG_POSTED:
374 PostMessageW( hwnd, info->msg, info->wparam, info->lparam );
375 break;
376 default:
377 ERR( "bad type %d\n", info->type );
378 break;
379 }
380 return TRUE;
381 }
382
383
384 /***********************************************************************
385 * map_wparam_AtoW
386 *
387 * Convert the wparam of an ASCII message to Unicode.
388 */
389 BOOL map_wparam_AtoW( UINT message, WPARAM *wparam, enum wm_char_mapping mapping )
390 {
391 char ch[2];
392 WCHAR wch[2];
393
394 wch[0] = wch[1] = 0;
395 switch(message)
396 {
397 case WM_CHAR:
398 /* WM_CHAR is magic: a DBCS char can be sent/posted as two consecutive WM_CHAR
399 * messages, in which case the first char is stored, and the conversion
400 * to Unicode only takes place once the second char is sent/posted.
401 */
402 if (mapping != WMCHAR_MAP_NOMAPPING)
403 {
404 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
405 BYTE low = LOBYTE(*wparam);
406
407 if (HIBYTE(*wparam))
408 {
409 ch[0] = low;
410 ch[1] = HIBYTE(*wparam);
411 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
412 TRACE( "map %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
413 if (data) data->lead_byte[mapping] = 0;
414 }
415 else if (data && data->lead_byte[mapping])
416 {
417 ch[0] = data->lead_byte[mapping];
418 ch[1] = low;
419 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
420 TRACE( "map stored %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
421 data->lead_byte[mapping] = 0;
422 }
423 else if (!IsDBCSLeadByte( low ))
424 {
425 ch[0] = low;
426 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 1 );
427 TRACE( "map %02x -> %04x\n", (BYTE)ch[0], wch[0] );
428 if (data) data->lead_byte[mapping] = 0;
429 }
430 else /* store it and wait for trail byte */
431 {
432 if (!data)
433 {
434 if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) )))
435 return FALSE;
436 get_user_thread_info()->wmchar_data = data;
437 }
438 TRACE( "storing lead byte %02x mapping %u\n", low, mapping );
439 data->lead_byte[mapping] = low;
440 return FALSE;
441 }
442 *wparam = MAKEWPARAM(wch[0], wch[1]);
443 break;
444 }
445 /* else fall through */
446 case WM_CHARTOITEM:
447 case EM_SETPASSWORDCHAR:
448 case WM_DEADCHAR:
449 case WM_SYSCHAR:
450 case WM_SYSDEADCHAR:
451 case WM_MENUCHAR:
452 ch[0] = LOBYTE(*wparam);
453 ch[1] = HIBYTE(*wparam);
454 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
455 *wparam = MAKEWPARAM(wch[0], wch[1]);
456 break;
457 case WM_IME_CHAR:
458 ch[0] = HIBYTE(*wparam);
459 ch[1] = LOBYTE(*wparam);
460 if (ch[0]) RtlMultiByteToUnicodeN( wch, sizeof(wch[0]), NULL, ch, 2 );
461 else RtlMultiByteToUnicodeN( wch, sizeof(wch[0]), NULL, ch + 1, 1 );
462 *wparam = MAKEWPARAM(wch[0], HIWORD(*wparam));
463 break;
464 }
465 return TRUE;
466 }
467
468
469 /***********************************************************************
470 * map_wparam_WtoA
471 *
472 * Convert the wparam of a Unicode message to ASCII.
473 */
474 static void map_wparam_WtoA( MSG *msg, BOOL remove )
475 {
476 BYTE ch[2];
477 WCHAR wch[2];
478 DWORD len;
479
480 switch(msg->message)
481 {
482 case WM_CHAR:
483 if (!HIWORD(msg->wParam))
484 {
485 wch[0] = LOWORD(msg->wParam);
486 ch[0] = ch[1] = 0;
487 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, &len, wch, sizeof(wch[0]) );
488 if (len == 2) /* DBCS char */
489 {
490 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
491 if (!data)
492 {
493 if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) ))) return;
494 get_user_thread_info()->wmchar_data = data;
495 }
496 if (remove)
497 {
498 data->get_msg = *msg;
499 data->get_msg.wParam = ch[1];
500 }
501 msg->wParam = ch[0];
502 return;
503 }
504 }
505 /* else fall through */
506 case WM_CHARTOITEM:
507 case EM_SETPASSWORDCHAR:
508 case WM_DEADCHAR:
509 case WM_SYSCHAR:
510 case WM_SYSDEADCHAR:
511 case WM_MENUCHAR:
512 wch[0] = LOWORD(msg->wParam);
513 wch[1] = HIWORD(msg->wParam);
514 ch[0] = ch[1] = 0;
515 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, NULL, wch, sizeof(wch) );
516 msg->wParam = MAKEWPARAM( ch[0] | (ch[1] << 8), 0 );
517 break;
518 case WM_IME_CHAR:
519 wch[0] = LOWORD(msg->wParam);
520 ch[0] = ch[1] = 0;
521 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, &len, wch, sizeof(wch[0]) );
522 if (len == 2)
523 msg->wParam = MAKEWPARAM( (ch[0] << 8) | ch[1], HIWORD(msg->wParam) );
524 else
525 msg->wParam = MAKEWPARAM( ch[0], HIWORD(msg->wParam) );
526 break;
527 }
528 }
529
530
531 /***********************************************************************
532 * pack_message
533 *
534 * Pack a message for sending to another process.
535 * Return the size of the data we expect in the message reply.
536 * Set data->count to -1 if there is an error.
537 */
538 static size_t pack_message( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
539 struct packed_message *data )
540 {
541 data->count = 0;
542 switch(message)
543 {
544 case WM_NCCREATE:
545 case WM_CREATE:
546 {
547 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
548 push_data( data, cs, sizeof(*cs) );
549 if (HIWORD(cs->lpszName)) push_string( data, cs->lpszName );
550 if (HIWORD(cs->lpszClass)) push_string( data, cs->lpszClass );
551 return sizeof(*cs);
552 }
553 case WM_GETTEXT:
554 case WM_ASKCBFORMATNAME:
555 return wparam * sizeof(WCHAR);
556 case WM_WININICHANGE:
557 if (lparam) push_string(data, (LPWSTR)lparam );
558 return 0;
559 case WM_SETTEXT:
560 case WM_DEVMODECHANGE:
561 case CB_DIR:
562 case LB_DIR:
563 case LB_ADDFILE:
564 case EM_REPLACESEL:
565 push_string( data, (LPWSTR)lparam );
566 return 0;
567 case WM_GETMINMAXINFO:
568 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
569 return sizeof(MINMAXINFO);
570 case WM_DRAWITEM:
571 push_data( data, (DRAWITEMSTRUCT *)lparam, sizeof(DRAWITEMSTRUCT) );
572 return 0;
573 case WM_MEASUREITEM:
574 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
575 return sizeof(MEASUREITEMSTRUCT);
576 case WM_DELETEITEM:
577 push_data( data, (DELETEITEMSTRUCT *)lparam, sizeof(DELETEITEMSTRUCT) );
578 return 0;
579 case WM_COMPAREITEM:
580 push_data( data, (COMPAREITEMSTRUCT *)lparam, sizeof(COMPAREITEMSTRUCT) );
581 return 0;
582 case WM_WINDOWPOSCHANGING:
583 case WM_WINDOWPOSCHANGED:
584 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
585 return sizeof(WINDOWPOS);
586 case WM_COPYDATA:
587 {
588 COPYDATASTRUCT *cp = (COPYDATASTRUCT *)lparam;
589 push_data( data, cp, sizeof(*cp) );
590 if (cp->lpData) push_data( data, cp->lpData, cp->cbData );
591 return 0;
592 }
593 case WM_NOTIFY:
594 /* WM_NOTIFY cannot be sent across processes (MSDN) */
595 data->count = -1;
596 return 0;
597 case WM_HELP:
598 push_data( data, (HELPINFO *)lparam, sizeof(HELPINFO) );
599 return 0;
600 case WM_STYLECHANGING:
601 case WM_STYLECHANGED:
602 push_data( data, (STYLESTRUCT *)lparam, sizeof(STYLESTRUCT) );
603 return 0;
604 case WM_NCCALCSIZE:
605 if (!wparam)
606 {
607 push_data( data, (RECT *)lparam, sizeof(RECT) );
608 return sizeof(RECT);
609 }
610 else
611 {
612 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
613 push_data( data, nc, sizeof(*nc) );
614 push_data( data, nc->lppos, sizeof(*nc->lppos) );
615 return sizeof(*nc) + sizeof(*nc->lppos);
616 }
617 case WM_GETDLGCODE:
618 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
619 return sizeof(MSG);
620 case SBM_SETSCROLLINFO:
621 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
622 return 0;
623 case SBM_GETSCROLLINFO:
624 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
625 return sizeof(SCROLLINFO);
626 case SBM_GETSCROLLBARINFO:
627 {
628 const SCROLLBARINFO *info = (const SCROLLBARINFO *)lparam;
629 size_t size = min( info->cbSize, sizeof(SCROLLBARINFO) );
630 push_data( data, info, size );
631 return size;
632 }
633 case EM_GETSEL:
634 case SBM_GETRANGE:
635 case CB_GETEDITSEL:
636 {
637 size_t size = 0;
638 if (wparam) size += sizeof(DWORD);
639 if (lparam) size += sizeof(DWORD);
640 return size;
641 }
642 case EM_GETRECT:
643 case LB_GETITEMRECT:
644 case CB_GETDROPPEDCONTROLRECT:
645 return sizeof(RECT);
646 case EM_SETRECT:
647 case EM_SETRECTNP:
648 push_data( data, (RECT *)lparam, sizeof(RECT) );
649 return 0;
650 case EM_GETLINE:
651 {
652 WORD *pw = (WORD *)lparam;
653 push_data( data, pw, sizeof(*pw) );
654 return *pw * sizeof(WCHAR);
655 }
656 case EM_SETTABSTOPS:
657 case LB_SETTABSTOPS:
658 if (wparam) push_data( data, (UINT *)lparam, sizeof(UINT) * wparam );
659 return 0;
660 case CB_ADDSTRING:
661 case CB_INSERTSTRING:
662 case CB_FINDSTRING:
663 case CB_FINDSTRINGEXACT:
664 case CB_SELECTSTRING:
665 if (combobox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
666 return 0;
667 case CB_GETLBTEXT:
668 if (!combobox_has_strings( hwnd )) return sizeof(ULONG_PTR);
669 return (SendMessageW( hwnd, CB_GETLBTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
670 case LB_ADDSTRING:
671 case LB_INSERTSTRING:
672 case LB_FINDSTRING:
673 case LB_FINDSTRINGEXACT:
674 case LB_SELECTSTRING:
675 if (listbox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
676 return 0;
677 case LB_GETTEXT:
678 if (!listbox_has_strings( hwnd )) return sizeof(ULONG_PTR);
679 return (SendMessageW( hwnd, LB_GETTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
680 case LB_GETSELITEMS:
681 return wparam * sizeof(UINT);
682 case WM_NEXTMENU:
683 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
684 return sizeof(MDINEXTMENU);
685 case WM_SIZING:
686 case WM_MOVING:
687 push_data( data, (RECT *)lparam, sizeof(RECT) );
688 return sizeof(RECT);
689 case WM_MDICREATE:
690 {
691 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
692 push_data( data, cs, sizeof(*cs) );
693 if (HIWORD(cs->szTitle)) push_string( data, cs->szTitle );
694 if (HIWORD(cs->szClass)) push_string( data, cs->szClass );
695 return sizeof(*cs);
696 }
697 case WM_MDIGETACTIVE:
698 if (lparam) return sizeof(BOOL);
699 return 0;
700 case WM_DEVICECHANGE:
701 {
702 DEV_BROADCAST_HDR *header = (DEV_BROADCAST_HDR *)lparam;
703 push_data( data, header, header->dbch_size );
704 return 0;
705 }
706 case WM_WINE_SETWINDOWPOS:
707 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
708 return 0;
709 case WM_WINE_KEYBOARD_LL_HOOK:
710 {
711 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
712 push_data( data, h_extra, sizeof(*h_extra) );
713 push_data( data, (LPVOID)h_extra->lparam, sizeof(KBDLLHOOKSTRUCT) );
714 return 0;
715 }
716 case WM_WINE_MOUSE_LL_HOOK:
717 {
718 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
719 push_data( data, h_extra, sizeof(*h_extra) );
720 push_data( data, (LPVOID)h_extra->lparam, sizeof(MSLLHOOKSTRUCT) );
721 return 0;
722 }
723 case WM_NCPAINT:
724 if (wparam <= 1) return 0;
725 FIXME( "WM_NCPAINT hdc packing not supported yet\n" );
726 data->count = -1;
727 return 0;
728 case WM_PAINT:
729 if (!wparam) return 0;
730 /* fall through */
731
732 /* these contain an HFONT */
733 case WM_SETFONT:
734 case WM_GETFONT:
735 /* these contain an HDC */
736 case WM_ERASEBKGND:
737 case WM_ICONERASEBKGND:
738 case WM_CTLCOLORMSGBOX:
739 case WM_CTLCOLOREDIT:
740 case WM_CTLCOLORLISTBOX:
741 case WM_CTLCOLORBTN:
742 case WM_CTLCOLORDLG:
743 case WM_CTLCOLORSCROLLBAR:
744 case WM_CTLCOLORSTATIC:
745 case WM_PRINT:
746 case WM_PRINTCLIENT:
747 /* these contain an HGLOBAL */
748 case WM_PAINTCLIPBOARD:
749 case WM_SIZECLIPBOARD:
750 /* these contain HICON */
751 case WM_GETICON:
752 case WM_SETICON:
753 case WM_QUERYDRAGICON:
754 case WM_QUERYPARKICON:
755 /* these contain pointers */
756 case WM_DROPOBJECT:
757 case WM_QUERYDROPOBJECT:
758 case WM_DRAGLOOP:
759 case WM_DRAGSELECT:
760 case WM_DRAGMOVE:
761 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
762 data->count = -1;
763 return 0;
764 }
765 return 0;
766 }
767
768
769 /***********************************************************************
770 * unpack_message
771 *
772 * Unpack a message received from another process.
773 */
774 static BOOL unpack_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
775 void **buffer, size_t size )
776 {
777 size_t minsize = 0;
778
779 switch(message)
780 {
781 case WM_NCCREATE:
782 case WM_CREATE:
783 {
784 CREATESTRUCTW *cs = *buffer;
785 WCHAR *str = (WCHAR *)(cs + 1);
786 if (size < sizeof(*cs)) return FALSE;
787 size -= sizeof(*cs);
788 if (HIWORD(cs->lpszName))
789 {
790 if (!check_string( str, size )) return FALSE;
791 cs->lpszName = str;
792 size -= (strlenW(str) + 1) * sizeof(WCHAR);
793 str += strlenW(str) + 1;
794 }
795 if (HIWORD(cs->lpszClass))
796 {
797 if (!check_string( str, size )) return FALSE;
798 cs->lpszClass = str;
799 }
800 break;
801 }
802 case WM_GETTEXT:
803 case WM_ASKCBFORMATNAME:
804 if (!get_buffer_space( buffer, (*wparam * sizeof(WCHAR)) )) return FALSE;
805 break;
806 case WM_WININICHANGE:
807 if (!*lparam) return TRUE;
808 /* fall through */
809 case WM_SETTEXT:
810 case WM_DEVMODECHANGE:
811 case CB_DIR:
812 case LB_DIR:
813 case LB_ADDFILE:
814 case EM_REPLACESEL:
815 if (!check_string( *buffer, size )) return FALSE;
816 break;
817 case WM_GETMINMAXINFO:
818 minsize = sizeof(MINMAXINFO);
819 break;
820 case WM_DRAWITEM:
821 minsize = sizeof(DRAWITEMSTRUCT);
822 break;
823 case WM_MEASUREITEM:
824 minsize = sizeof(MEASUREITEMSTRUCT);
825 break;
826 case WM_DELETEITEM:
827 minsize = sizeof(DELETEITEMSTRUCT);
828 break;
829 case WM_COMPAREITEM:
830 minsize = sizeof(COMPAREITEMSTRUCT);
831 break;
832 case WM_WINDOWPOSCHANGING:
833 case WM_WINDOWPOSCHANGED:
834 case WM_WINE_SETWINDOWPOS:
835 minsize = sizeof(WINDOWPOS);
836 break;
837 case WM_COPYDATA:
838 {
839 COPYDATASTRUCT *cp = *buffer;
840 if (size < sizeof(*cp)) return FALSE;
841 if (cp->lpData)
842 {
843 minsize = sizeof(*cp) + cp->cbData;
844 cp->lpData = cp + 1;
845 }
846 break;
847 }
848 case WM_NOTIFY:
849 /* WM_NOTIFY cannot be sent across processes (MSDN) */
850 return FALSE;
851 case WM_HELP:
852 minsize = sizeof(HELPINFO);
853 break;
854 case WM_STYLECHANGING:
855 case WM_STYLECHANGED:
856 minsize = sizeof(STYLESTRUCT);
857 break;
858 case WM_NCCALCSIZE:
859 if (!*wparam) minsize = sizeof(RECT);
860 else
861 {
862 NCCALCSIZE_PARAMS *nc = *buffer;
863 if (size < sizeof(*nc) + sizeof(*nc->lppos)) return FALSE;
864 nc->lppos = (WINDOWPOS *)(nc + 1);
865 }
866 break;
867 case WM_GETDLGCODE:
868 if (!*lparam) return TRUE;
869 minsize = sizeof(MSG);
870 break;
871 case SBM_SETSCROLLINFO:
872 minsize = sizeof(SCROLLINFO);
873 break;
874 case SBM_GETSCROLLINFO:
875 if (!get_buffer_space( buffer, sizeof(SCROLLINFO ))) return FALSE;
876 break;
877 case SBM_GETSCROLLBARINFO:
878 if (!get_buffer_space( buffer, sizeof(SCROLLBARINFO ))) return FALSE;
879 break;
880 case EM_GETSEL:
881 case SBM_GETRANGE:
882 case CB_GETEDITSEL:
883 if (*wparam || *lparam)
884 {
885 if (!get_buffer_space( buffer, 2*sizeof(DWORD) )) return FALSE;
886 if (*wparam) *wparam = (WPARAM)*buffer;
887 if (*lparam) *lparam = (LPARAM)((DWORD *)*buffer + 1);
888 }
889 return TRUE;
890 case EM_GETRECT:
891 case LB_GETITEMRECT:
892 case CB_GETDROPPEDCONTROLRECT:
893 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
894 break;
895 case EM_SETRECT:
896 case EM_SETRECTNP:
897 minsize = sizeof(RECT);
898 break;
899 case EM_GETLINE:
900 {
901 WORD len;
902 if (size < sizeof(WORD)) return FALSE;
903 len = *(WORD *)*buffer;
904 if (!get_buffer_space( buffer, (len + 1) * sizeof(WCHAR) )) return FALSE;
905 *lparam = (LPARAM)*buffer + sizeof(WORD); /* don't erase WORD at start of buffer */
906 return TRUE;
907 }
908 case EM_SETTABSTOPS:
909 case LB_SETTABSTOPS:
910 if (!*wparam) return TRUE;
911 minsize = *wparam * sizeof(UINT);
912 break;
913 case CB_ADDSTRING:
914 case CB_INSERTSTRING:
915 case CB_FINDSTRING:
916 case CB_FINDSTRINGEXACT:
917 case CB_SELECTSTRING:
918 case LB_ADDSTRING:
919 case LB_INSERTSTRING:
920 case LB_FINDSTRING:
921 case LB_FINDSTRINGEXACT:
922 case LB_SELECTSTRING:
923 if (!*buffer) return TRUE;
924 if (!check_string( *buffer, size )) return FALSE;
925 break;
926 case CB_GETLBTEXT:
927 {
928 size = sizeof(ULONG_PTR);
929 if (combobox_has_strings( hwnd ))
930 size = (SendMessageW( hwnd, CB_GETLBTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
931 if (!get_buffer_space( buffer, size )) return FALSE;
932 break;
933 }
934 case LB_GETTEXT:
935 {
936 size = sizeof(ULONG_PTR);
937 if (listbox_has_strings( hwnd ))
938 size = (SendMessageW( hwnd, LB_GETTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
939 if (!get_buffer_space( buffer, size )) return FALSE;
940 break;
941 }
942 case LB_GETSELITEMS:
943 if (!get_buffer_space( buffer, *wparam * sizeof(UINT) )) return FALSE;
944 break;
945 case WM_NEXTMENU:
946 minsize = sizeof(MDINEXTMENU);
947 if (!get_buffer_space( buffer, sizeof(MDINEXTMENU) )) return FALSE;
948 break;
949 case WM_SIZING:
950 case WM_MOVING:
951 minsize = sizeof(RECT);
952 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
953 break;
954 case WM_MDICREATE:
955 {
956 MDICREATESTRUCTW *cs = *buffer;
957 WCHAR *str = (WCHAR *)(cs + 1);
958 if (size < sizeof(*cs)) return FALSE;
959 size -= sizeof(*cs);
960 if (HIWORD(cs->szTitle))
961 {
962 if (!check_string( str, size )) return FALSE;
963 cs->szTitle = str;
964 size -= (strlenW(str) + 1) * sizeof(WCHAR);
965 str += strlenW(str) + 1;
966 }
967 if (HIWORD(cs->szClass))
968 {
969 if (!check_string( str, size )) return FALSE;
970 cs->szClass = str;
971 }
972 break;
973 }
974 case WM_MDIGETACTIVE:
975 if (!*lparam) return TRUE;
976 if (!get_buffer_space( buffer, sizeof(BOOL) )) return FALSE;
977 break;
978 case WM_DEVICECHANGE:
979 minsize = sizeof(DEV_BROADCAST_HDR);
980 break;
981 case WM_WINE_KEYBOARD_LL_HOOK:
982 case WM_WINE_MOUSE_LL_HOOK:
983 {
984 struct hook_extra_info *h_extra = (struct hook_extra_info *)*buffer;
985
986 minsize = sizeof(struct hook_extra_info) +
987 (message == WM_WINE_KEYBOARD_LL_HOOK ? sizeof(KBDLLHOOKSTRUCT)
988 : sizeof(MSLLHOOKSTRUCT));
989 if (size < minsize) return FALSE;
990 h_extra->lparam = (LPARAM)(h_extra + 1);
991 break;
992 }
993 case WM_NCPAINT:
994 if (*wparam <= 1) return TRUE;
995 FIXME( "WM_NCPAINT hdc unpacking not supported\n" );
996 return FALSE;
997 case WM_PAINT:
998 if (!*wparam) return TRUE;
999 /* fall through */
1000
1001 /* these contain an HFONT */
1002 case WM_SETFONT:
1003 case WM_GETFONT:
1004 /* these contain an HDC */
1005 case WM_ERASEBKGND:
1006 case WM_ICONERASEBKGND:
1007 case WM_CTLCOLORMSGBOX:
1008 case WM_CTLCOLOREDIT:
1009 case WM_CTLCOLORLISTBOX:
1010 case WM_CTLCOLORBTN:
1011 case WM_CTLCOLORDLG:
1012 case WM_CTLCOLORSCROLLBAR:
1013 case WM_CTLCOLORSTATIC:
1014 case WM_PRINT:
1015 case WM_PRINTCLIENT:
1016 /* these contain an HGLOBAL */
1017 case WM_PAINTCLIPBOARD:
1018 case WM_SIZECLIPBOARD:
1019 /* these contain HICON */
1020 case WM_GETICON:
1021 case WM_SETICON:
1022 case WM_QUERYDRAGICON:
1023 case WM_QUERYPARKICON:
1024 /* these contain pointers */
1025 case WM_DROPOBJECT:
1026 case WM_QUERYDROPOBJECT:
1027 case WM_DRAGLOOP:
1028 case WM_DRAGSELECT:
1029 case WM_DRAGMOVE:
1030 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
1031 return FALSE;
1032
1033 default:
1034 return TRUE; /* message doesn't need any unpacking */
1035 }
1036
1037 /* default exit for most messages: check minsize and store buffer in lparam */
1038 if (size < minsize) return FALSE;
1039 *lparam = (LPARAM)*buffer;
1040 return TRUE;
1041 }
1042
1043
1044 /***********************************************************************
1045 * pack_reply
1046 *
1047 * Pack a reply to a message for sending to another process.
1048 */
1049 static void pack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1050 LRESULT res, struct packed_message *data )
1051 {
1052 data->count = 0;
1053 switch(message)
1054 {
1055 case WM_NCCREATE:
1056 case WM_CREATE:
1057 push_data( data, (CREATESTRUCTW *)lparam, sizeof(CREATESTRUCTW) );
1058 break;
1059 case WM_GETTEXT:
1060 case CB_GETLBTEXT:
1061 case LB_GETTEXT:
1062 push_data( data, (WCHAR *)lparam, (res + 1) * sizeof(WCHAR) );
1063 break;
1064 case WM_GETMINMAXINFO:
1065 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
1066 break;
1067 case WM_MEASUREITEM:
1068 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
1069 break;
1070 case WM_WINDOWPOSCHANGING:
1071 case WM_WINDOWPOSCHANGED:
1072 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
1073 break;
1074 case WM_GETDLGCODE:
1075 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
1076 break;
1077 case SBM_GETSCROLLINFO:
1078 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
1079 break;
1080 case EM_GETRECT:
1081 case LB_GETITEMRECT:
1082 case CB_GETDROPPEDCONTROLRECT:
1083 case WM_SIZING:
1084 case WM_MOVING:
1085 push_data( data, (RECT *)lparam, sizeof(RECT) );
1086 break;
1087 case EM_GETLINE:
1088 {
1089 WORD *ptr = (WORD *)lparam;
1090 push_data( data, ptr, ptr[-1] * sizeof(WCHAR) );
1091 break;
1092 }
1093 case LB_GETSELITEMS:
1094 push_data( data, (UINT *)lparam, wparam * sizeof(UINT) );
1095 break;
1096 case WM_MDIGETACTIVE:
1097 if (lparam) push_data( data, (BOOL *)lparam, sizeof(BOOL) );
1098 break;
1099 case WM_NCCALCSIZE:
1100 if (!wparam)
1101 push_data( data, (RECT *)lparam, sizeof(RECT) );
1102 else
1103 {
1104 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1105 push_data( data, nc, sizeof(*nc) );
1106 push_data( data, nc->lppos, sizeof(*nc->lppos) );
1107 }
1108 break;
1109 case EM_GETSEL:
1110 case SBM_GETRANGE:
1111 case CB_GETEDITSEL:
1112 if (wparam) push_data( data, (DWORD *)wparam, sizeof(DWORD) );
1113 if (lparam) push_data( data, (DWORD *)lparam, sizeof(DWORD) );
1114 break;
1115 case WM_NEXTMENU:
1116 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
1117 break;
1118 case WM_MDICREATE:
1119 push_data( data, (MDICREATESTRUCTW *)lparam, sizeof(MDICREATESTRUCTW) );
1120 break;
1121 case WM_ASKCBFORMATNAME:
1122 push_data( data, (WCHAR *)lparam, (strlenW((WCHAR *)lparam) + 1) * sizeof(WCHAR) );
1123 break;
1124 }
1125 }
1126
1127
1128 /***********************************************************************
1129 * unpack_reply
1130 *
1131 * Unpack a message reply received from another process.
1132 */
1133 static void unpack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1134 void *buffer, size_t size )
1135 {
1136 switch(message)
1137 {
1138 case WM_NCCREATE:
1139 case WM_CREATE:
1140 {
1141 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
1142 LPCWSTR name = cs->lpszName, class = cs->lpszClass;
1143 memcpy( cs, buffer, min( sizeof(*cs), size ));
1144 cs->lpszName = name; /* restore the original pointers */
1145 cs->lpszClass = class;
1146 break;
1147 }
1148 case WM_GETTEXT:
1149 case WM_ASKCBFORMATNAME:
1150 memcpy( (WCHAR *)lparam, buffer, min( wparam*sizeof(WCHAR), size ));
1151 break;
1152 case WM_GETMINMAXINFO:
1153 memcpy( (MINMAXINFO *)lparam, buffer, min( sizeof(MINMAXINFO), size ));
1154 break;
1155 case WM_MEASUREITEM:
1156 memcpy( (MEASUREITEMSTRUCT *)lparam, buffer, min( sizeof(MEASUREITEMSTRUCT), size ));
1157 break;
1158 case WM_WINDOWPOSCHANGING:
1159 case WM_WINDOWPOSCHANGED:
1160 memcpy( (WINDOWPOS *)lparam, buffer, min( sizeof(WINDOWPOS), size ));
1161 break;
1162 case WM_GETDLGCODE:
1163 if (lparam) memcpy( (MSG *)lparam, buffer, min( sizeof(MSG), size ));
1164 break;
1165 case SBM_GETSCROLLINFO:
1166 memcpy( (SCROLLINFO *)lparam, buffer, min( sizeof(SCROLLINFO), size ));
1167 break;
1168 case SBM_GETSCROLLBARINFO:
1169 memcpy( (SCROLLBARINFO *)lparam, buffer, min( sizeof(SCROLLBARINFO), size ));
1170 break;
1171 case EM_GETRECT:
1172 case CB_GETDROPPEDCONTROLRECT:
1173 case LB_GETITEMRECT:
1174 case WM_SIZING:
1175 case WM_MOVING:
1176 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1177 break;
1178 case EM_GETLINE:
1179 size = min( size, (size_t)*(WORD *)lparam );
1180 memcpy( (WCHAR *)lparam, buffer, size );
1181 break;
1182 case LB_GETSELITEMS:
1183 memcpy( (UINT *)lparam, buffer, min( wparam*sizeof(UINT), size ));
1184 break;
1185 case LB_GETTEXT:
1186 case CB_GETLBTEXT:
1187 memcpy( (WCHAR *)lparam, buffer, size );
1188 break;
1189 case WM_NEXTMENU:
1190 memcpy( (MDINEXTMENU *)lparam, buffer, min( sizeof(MDINEXTMENU), size ));
1191 break;
1192 case WM_MDIGETACTIVE:
1193 if (lparam) memcpy( (BOOL *)lparam, buffer, min( sizeof(BOOL), size ));
1194 break;
1195 case WM_NCCALCSIZE:
1196 if (!wparam)
1197 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1198 else
1199 {
1200 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1201 WINDOWPOS *wp = nc->lppos;
1202 memcpy( nc, buffer, min( sizeof(*nc), size ));
1203 if (size > sizeof(*nc))
1204 {
1205 size -= sizeof(*nc);
1206 memcpy( wp, (NCCALCSIZE_PARAMS*)buffer + 1, min( sizeof(*wp), size ));
1207 }
1208 nc->lppos = wp; /* restore the original pointer */
1209 }
1210 break;
1211 case EM_GETSEL:
1212 case SBM_GETRANGE:
1213 case CB_GETEDITSEL:
1214 if (wparam)
1215 {
1216 memcpy( (DWORD *)wparam, buffer, min( sizeof(DWORD), size ));
1217 if (size <= sizeof(DWORD)) break;
1218 size -= sizeof(DWORD);
1219 buffer = (DWORD *)buffer + 1;
1220 }
1221 if (lparam) memcpy( (DWORD *)lparam, buffer, min( sizeof(DWORD), size ));
1222 break;
1223 case WM_MDICREATE:
1224 {
1225 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
1226 LPCWSTR title = cs->szTitle, class = cs->szClass;
1227 memcpy( cs, buffer, min( sizeof(*cs), size ));
1228 cs->szTitle = title; /* restore the original pointers */
1229 cs->szClass = class;
1230 break;
1231 }
1232 default:
1233 ERR( "should not happen: unexpected message %x\n", message );
1234 break;
1235 }
1236 }
1237
1238
1239 /***********************************************************************
1240 * reply_message
1241 *
1242 * Send a reply to a sent message.
1243 */
1244 static void reply_message( struct received_message_info *info, LRESULT result, BOOL remove )
1245 {
1246 struct packed_message data;
1247 int i, replied = info->flags & ISMEX_REPLIED;
1248
1249 if (info->flags & ISMEX_NOTIFY) return; /* notify messages don't get replies */
1250 if (!remove && replied) return; /* replied already */
1251
1252 data.count = 0;
1253 info->flags |= ISMEX_REPLIED;
1254
1255 if (info->type == MSG_OTHER_PROCESS && !replied)
1256 {
1257 pack_reply( info->msg.hwnd, info->msg.message, info->msg.wParam,
1258 info->msg.lParam, result, &data );
1259 }
1260
1261 SERVER_START_REQ( reply_message )
1262 {
1263 req->result = result;
1264 req->remove = remove;
1265 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
1266 wine_server_call( req );
1267 }
1268 SERVER_END_REQ;
1269 }
1270
1271
1272 /***********************************************************************
1273 * handle_internal_message
1274 *
1275 * Handle an internal Wine message instead of calling the window proc.
1276 */
1277 static LRESULT handle_internal_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
1278 {
1279 switch(msg)
1280 {
1281 case WM_WINE_DESTROYWINDOW:
1282 return WIN_DestroyWindow( hwnd );
1283 case WM_WINE_SETWINDOWPOS:
1284 if (is_desktop_window( hwnd )) return 0;
1285 return USER_SetWindowPos( (WINDOWPOS *)lparam );
1286 case WM_WINE_SHOWWINDOW:
1287 if (is_desktop_window( hwnd )) return 0;
1288 return ShowWindow( hwnd, wparam );
1289 case WM_WINE_SETPARENT:
1290 if (is_desktop_window( hwnd )) return 0;
1291 return (LRESULT)SetParent( hwnd, (HWND)wparam );
1292 case WM_WINE_SETWINDOWLONG:
1293 return WIN_SetWindowLong( hwnd, (short)LOWORD(wparam), HIWORD(wparam), lparam, TRUE );
1294 case WM_WINE_ENABLEWINDOW:
1295 if (is_desktop_window( hwnd )) return 0;
1296 return EnableWindow( hwnd, wparam );
1297 case WM_WINE_SETACTIVEWINDOW:
1298 if (is_desktop_window( hwnd )) return 0;
1299 return (LRESULT)SetActiveWindow( (HWND)wparam );
1300 case WM_WINE_KEYBOARD_LL_HOOK:
1301 case WM_WINE_MOUSE_LL_HOOK:
1302 {
1303 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
1304
1305 return call_current_hook( h_extra->handle, HC_ACTION, wparam, h_extra->lparam );
1306 }
1307 default:
1308 if (msg >= WM_WINE_FIRST_DRIVER_MSG && msg <= WM_WINE_LAST_DRIVER_MSG)
1309 return USER_Driver->pWindowMessage( hwnd, msg, wparam, lparam );
1310 FIXME( "unknown internal message %x\n", msg );
1311 return 0;
1312 }
1313 }
1314
1315 /* since the WM_DDE_ACK response to a WM_DDE_EXECUTE message should contain the handle
1316 * to the memory handle, we keep track (in the server side) of all pairs of handle
1317 * used (the client passes its value and the content of the memory handle), and
1318 * the server stored both values (the client, and the local one, created after the
1319 * content). When a ACK message is generated, the list of pair is searched for a
1320 * matching pair, so that the client memory handle can be returned.
1321 */
1322 struct DDE_pair {
1323 HGLOBAL client_hMem;
1324 HGLOBAL server_hMem;
1325 };
1326
1327 static struct DDE_pair* dde_pairs;
1328 static int dde_num_alloc;
1329 static int dde_num_used;
1330
1331 static CRITICAL_SECTION dde_crst;
1332 static CRITICAL_SECTION_DEBUG critsect_debug =
1333 {
1334 0, 0, &dde_crst,
1335 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
1336 0, 0, { (DWORD_PTR)(__FILE__ ": dde_crst") }
1337 };
1338 static CRITICAL_SECTION dde_crst = { &critsect_debug, -1, 0, 0, 0, 0 };
1339
1340 static BOOL dde_add_pair(HGLOBAL chm, HGLOBAL shm)
1341 {
1342 int i;
1343 #define GROWBY 4
1344
1345 EnterCriticalSection(&dde_crst);
1346
1347 /* now remember the pair of hMem on both sides */
1348 if (dde_num_used == dde_num_alloc)
1349 {
1350 struct DDE_pair* tmp;
1351 if (dde_pairs)
1352 tmp = HeapReAlloc( GetProcessHeap(), 0, dde_pairs,
1353 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1354 else
1355 tmp = HeapAlloc( GetProcessHeap(), 0,
1356 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1357
1358 if (!tmp)
1359 {
1360 LeaveCriticalSection(&dde_crst);
1361 return FALSE;
1362 }
1363 dde_pairs = tmp;
1364 /* zero out newly allocated part */
1365 memset(&dde_pairs[dde_num_alloc], 0, GROWBY * sizeof(struct DDE_pair));
1366 dde_num_alloc += GROWBY;
1367 }
1368 #undef GROWBY
1369 for (i = 0; i < dde_num_alloc; i++)
1370 {
1371 if (dde_pairs[i].server_hMem == 0)
1372 {
1373 dde_pairs[i].client_hMem = chm;
1374 dde_pairs[i].server_hMem = shm;
1375 dde_num_used++;
1376 break;
1377 }
1378 }
1379 LeaveCriticalSection(&dde_crst);
1380 return TRUE;
1381 }
1382
1383 static HGLOBAL dde_get_pair(HGLOBAL shm)
1384 {
1385 int i;
1386 HGLOBAL ret = 0;
1387
1388 EnterCriticalSection(&dde_crst);
1389 for (i = 0; i < dde_num_alloc; i++)
1390 {
1391 if (dde_pairs[i].server_hMem == shm)
1392 {
1393 /* free this pair */
1394 dde_pairs[i].server_hMem = 0;
1395 dde_num_used--;
1396 ret = dde_pairs[i].client_hMem;
1397 break;
1398 }
1399 }
1400 LeaveCriticalSection(&dde_crst);
1401 return ret;
1402 }
1403
1404 /***********************************************************************
1405 * post_dde_message
1406 *
1407 * Post a DDE message
1408 */
1409 static BOOL post_dde_message( struct packed_message *data, const struct send_message_info *info )
1410 {
1411 void* ptr = NULL;
1412 int size = 0;
1413 UINT_PTR uiLo, uiHi;
1414 LPARAM lp = 0;
1415 HGLOBAL hunlock = 0;
1416 int i;
1417 DWORD res;
1418
1419 if (!UnpackDDElParam( info->msg, info->lparam, &uiLo, &uiHi ))
1420 return FALSE;
1421
1422 lp = info->lparam;
1423 switch (info->msg)
1424 {
1425 /* DDE messages which don't require packing are:
1426 * WM_DDE_INITIATE
1427 * WM_DDE_TERMINATE
1428 * WM_DDE_REQUEST
1429 * WM_DDE_UNADVISE
1430 */
1431 case WM_DDE_ACK:
1432 if (HIWORD(uiHi))
1433 {
1434 /* uiHi should contain a hMem from WM_DDE_EXECUTE */
1435 HGLOBAL h = dde_get_pair( (HANDLE)uiHi );
1436 if (h)
1437 {
1438 /* send back the value of h on the other side */
1439 push_data( data, &h, sizeof(HGLOBAL) );
1440 lp = uiLo;
1441 TRACE( "send dde-ack %lx %08lx => %p\n", uiLo, uiHi, h );
1442 }
1443 }
1444 else
1445 {
1446 /* uiHi should contain either an atom or 0 */
1447 TRACE( "send dde-ack %lx atom=%lx\n", uiLo, uiHi );
1448 lp = MAKELONG( uiLo, uiHi );
1449 }
1450 break;
1451 case WM_DDE_ADVISE:
1452 case WM_DDE_DATA:
1453 case WM_DDE_POKE:
1454 size = 0;
1455 if (uiLo)
1456 {
1457 size = GlobalSize( (HGLOBAL)uiLo ) ;
1458 if ((info->msg == WM_DDE_ADVISE && size < sizeof(DDEADVISE)) ||
1459 (info->msg == WM_DDE_DATA && size < FIELD_OFFSET(DDEDATA, Value)) ||
1460 (info->msg == WM_DDE_POKE && size < FIELD_OFFSET(DDEPOKE, Value))
1461 )
1462 return FALSE;
1463 }
1464 else if (info->msg != WM_DDE_DATA) return FALSE;
1465
1466 lp = uiHi;
1467 if (uiLo)
1468 {
1469 if ((ptr = GlobalLock( (HGLOBAL)uiLo) ))
1470 {
1471 DDEDATA *dde_data = (DDEDATA *)ptr;
1472 TRACE("unused %d, fResponse %d, fRelease %d, fDeferUpd %d, fAckReq %d, cfFormat %d\n",
1473 dde_data->unused, dde_data->fResponse, dde_data->fRelease,
1474 dde_data->reserved, dde_data->fAckReq, dde_data->cfFormat);
1475 push_data( data, ptr, size );
1476 hunlock = (HGLOBAL)uiLo;
1477 }
1478 }
1479 TRACE( "send ddepack %u %lx\n", size, uiHi );
1480 break;
1481 case WM_DDE_EXECUTE:
1482 if (info->lparam)
1483 {
1484 if ((ptr = GlobalLock( (HGLOBAL)info->lparam) ))
1485 {
1486 push_data(data, ptr, GlobalSize( (HGLOBAL)info->lparam ));
1487 /* so that the other side can send it back on ACK */
1488 lp = info->lparam;
1489 hunlock = (HGLOBAL)info->lparam;
1490 }
1491 }
1492 break;
1493 }
1494 SERVER_START_REQ( send_message )
1495 {
1496 req->id = info->dest_tid;
1497 req->type = info->type;
1498 req->flags = 0;
1499 req->win = info->hwnd;
1500 req->msg = info->msg;
1501 req->wparam = info->wparam;
1502 req->lparam = lp;
1503 req->timeout = TIMEOUT_INFINITE;
1504 for (i = 0; i < data->count; i++)
1505 wine_server_add_data( req, data->data[i], data->size[i] );
1506 if ((res = wine_server_call( req )))
1507 {
1508 if (res == STATUS_INVALID_PARAMETER)
1509 /* FIXME: find a STATUS_ value for this one */
1510 SetLastError( ERROR_INVALID_THREAD_ID );
1511 else
1512 SetLastError( RtlNtStatusToDosError(res) );
1513 }
1514 else
1515 FreeDDElParam(info->msg, info->lparam);
1516 }
1517 SERVER_END_REQ;
1518 if (hunlock) GlobalUnlock(hunlock);
1519
1520 return !res;
1521 }
1522
1523 /***********************************************************************
1524 * unpack_dde_message
1525 *
1526 * Unpack a posted DDE message received from another process.
1527 */
1528 static BOOL unpack_dde_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
1529 void **buffer, size_t size )
1530 {
1531 UINT_PTR uiLo, uiHi;
1532 HGLOBAL hMem = 0;
1533 void* ptr;
1534
1535 switch (message)
1536 {
1537 case WM_DDE_ACK:
1538 if (size)
1539 {
1540 /* hMem is being passed */
1541 if (size != sizeof(HGLOBAL)) return FALSE;
1542 if (!buffer || !*buffer) return FALSE;
1543 uiLo = *lparam;
1544 memcpy( &hMem, *buffer, size );
1545 uiHi = (UINT_PTR)hMem;
1546 TRACE("recv dde-ack %lx mem=%lx[%lx]\n", uiLo, uiHi, GlobalSize( hMem ));
1547 }
1548 else
1549 {
1550 uiLo = LOWORD( *lparam );
1551 uiHi = HIWORD( *lparam );
1552 TRACE("recv dde-ack %lx atom=%lx\n", uiLo, uiHi);
1553 }
1554 *lparam = PackDDElParam( WM_DDE_ACK, uiLo, uiHi );
1555 break;
1556 case WM_DDE_ADVISE:
1557 case WM_DDE_DATA:
1558 case WM_DDE_POKE:
1559 if ((!buffer || !*buffer) && message != WM_DDE_DATA) return FALSE;
1560 uiHi = *lparam;
1561 if (size)
1562 {
1563 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size )))
1564 return FALSE;
1565 if ((ptr = GlobalLock( hMem )))
1566 {
1567 memcpy( ptr, *buffer, size );
1568 GlobalUnlock( hMem );
1569 }
1570 else
1571 {
1572 GlobalFree( hMem );
1573 return FALSE;
1574 }
1575 }
1576 uiLo = (UINT_PTR)hMem;
1577
1578 *lparam = PackDDElParam( message, uiLo, uiHi );
1579 break;
1580 case WM_DDE_EXECUTE:
1581 if (size)
1582 {
1583 if (!buffer || !*buffer) return FALSE;
1584 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size ))) return FALSE;
1585 if ((ptr = GlobalLock( hMem )))
1586 {
1587 memcpy( ptr, *buffer, size );
1588 GlobalUnlock( hMem );
1589 TRACE( "exec: pairing c=%08lx s=%p\n", *lparam, hMem );
1590 if (!dde_add_pair( (HGLOBAL)*lparam, hMem ))
1591 {
1592 GlobalFree( hMem );
1593 return FALSE;
1594 }
1595 }
1596 else
1597 {
1598 GlobalFree( hMem );
1599 return FALSE;
1600 }
1601 } else return FALSE;
1602 *lparam = (LPARAM)hMem;
1603 break;
1604 }
1605 return TRUE;
1606 }
1607
1608 /***********************************************************************
1609 * call_window_proc
1610 *
1611 * Call a window procedure and the corresponding hooks.
1612 */
1613 static LRESULT call_window_proc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
1614 BOOL unicode, BOOL same_thread, enum wm_char_mapping mapping )
1615 {
1616 struct user_thread_info *thread_info = get_user_thread_info();
1617 LRESULT result = 0;
1618 CWPSTRUCT cwp;
1619 CWPRETSTRUCT cwpret;
1620
1621 if (thread_info->recursion_count > MAX_SENDMSG_RECURSION) return 0;
1622 thread_info->recursion_count++;
1623
1624 if (msg & 0x80000000)
1625 {
1626 result = handle_internal_message( hwnd, msg, wparam, lparam );
1627 goto done;
1628 }
1629
1630 /* first the WH_CALLWNDPROC hook */
1631 hwnd = WIN_GetFullHandle( hwnd );
1632 cwp.lParam = lparam;
1633 cwp.wParam = wparam;
1634 cwp.message = msg;
1635 cwp.hwnd = hwnd;
1636 HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, same_thread, (LPARAM)&cwp, unicode );
1637
1638 /* now call the window procedure */
1639 if (!WINPROC_call_window( hwnd, msg, wparam, lparam, &result, unicode, mapping )) goto done;
1640
1641 /* and finally the WH_CALLWNDPROCRET hook */
1642 cwpret.lResult = result;
1643 cwpret.lParam = lparam;
1644 cwpret.wParam = wparam;
1645 cwpret.message = msg;
1646 cwpret.hwnd = hwnd;
1647 HOOK_CallHooks( WH_CALLWNDPROCRET, HC_ACTION, same_thread, (LPARAM)&cwpret, unicode );
1648 done:
1649 thread_info->recursion_count--;
1650 return result;
1651 }
1652
1653
1654 /***********************************************************************
1655 * send_parent_notify
1656 *
1657 * Send a WM_PARENTNOTIFY to all ancestors of the given window, unless
1658 * the window has the WS_EX_NOPARENTNOTIFY style.
1659 */
1660 static void send_parent_notify( HWND hwnd, WORD event, WORD idChild, POINT pt )
1661 {
1662 /* pt has to be in the client coordinates of the parent window */
1663 MapWindowPoints( 0, hwnd, &pt, 1 );
1664 for (;;)
1665 {
1666 HWND parent;
1667
1668 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) break;
1669 if (GetWindowLongW( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) break;
1670 if (!(parent = GetParent(hwnd))) break;
1671 if (parent == GetDesktopWindow()) break;
1672 MapWindowPoints( hwnd, parent, &pt, 1 );
1673 hwnd = parent;
1674 SendMessageW( hwnd, WM_PARENTNOTIFY,
1675 MAKEWPARAM( event, idChild ), MAKELPARAM( pt.x, pt.y ) );
1676 }
1677 }
1678
1679
1680 /***********************************************************************
1681 * accept_hardware_message
1682 *
1683 * Tell the server we have passed the message to the app
1684 * (even though we may end up dropping it later on)
1685 */
1686 static void accept_hardware_message( UINT hw_id, BOOL remove, HWND new_hwnd )
1687 {
1688 SERVER_START_REQ( accept_hardware_message )
1689 {
1690 req->hw_id = hw_id;
1691 req->remove = remove;
1692 req->new_win = new_hwnd;
1693 if (wine_server_call( req ))
1694 FIXME("Failed to reply to MSG_HARDWARE message. Message may not be removed from queue.\n");
1695 }
1696 SERVER_END_REQ;
1697 }
1698
1699
1700 /***********************************************************************
1701 * process_keyboard_message
1702 *
1703 * returns TRUE if the contents of 'msg' should be passed to the application
1704 */
1705 static BOOL process_keyboard_message( MSG *msg, UINT hw_id, HWND hwnd_filter,
1706 UINT first, UINT last, BOOL remove )
1707 {
1708 EVENTMSG event;
1709
1710 if (msg->message == WM_KEYDOWN || msg->message == WM_SYSKEYDOWN ||
1711 msg->message == WM_KEYUP || msg->message == WM_SYSKEYUP)
1712 switch (msg->wParam)
1713 {
1714 case VK_LSHIFT: case VK_RSHIFT:
1715 msg->wParam = VK_SHIFT;
1716 break;
1717 case VK_LCONTROL: case VK_RCONTROL:
1718 msg->wParam = VK_CONTROL;
1719 break;
1720 case VK_LMENU: case VK_RMENU:
1721 msg->wParam = VK_MENU;
1722 break;
1723 }
1724
1725 /* FIXME: is this really the right place for this hook? */
1726 event.message = msg->message;
1727 event.hwnd = msg->hwnd;
1728 event.time = msg->time;
1729 event.paramL = (msg->wParam & 0xFF) | (HIWORD(msg->lParam) << 8);
1730 event.paramH = msg->lParam & 0x7FFF;
1731 if (HIWORD(msg->lParam) & 0x0100) event.paramH |= 0x8000; /* special_key - bit */
1732 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1733
1734 /* check message filters */
1735 if (msg->message < first || msg->message > last) return FALSE;
1736 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1737
1738 if (remove)
1739 {
1740 if((msg->message == WM_KEYDOWN) &&
1741 (msg->hwnd != GetDesktopWindow()))
1742 {
1743 /* Handle F1 key by sending out WM_HELP message */
1744 if (msg->wParam == VK_F1)
1745 {
1746 PostMessageW( msg->hwnd, WM_KEYF1, 0, 0 );
1747 }
1748 else if(msg->wParam >= VK_BROWSER_BACK &&
1749 msg->wParam <= VK_LAUNCH_APP2)
1750 {
1751 /* FIXME: Process keystate */
1752 SendMessageW(msg->hwnd, WM_APPCOMMAND, (WPARAM)msg->hwnd, MAKELPARAM(0, (FAPPCOMMAND_KEY | (msg->wParam - VK_BROWSER_BACK + 1))));
1753 }
1754 }
1755 else if (msg->message == WM_KEYUP)
1756 {
1757 /* Handle VK_APPS key by posting a WM_CONTEXTMENU message */
1758 if (msg->wParam == VK_APPS && !MENU_IsMenuActive())
1759 PostMessageW(msg->hwnd, WM_CONTEXTMENU, (WPARAM)msg->hwnd, (LPARAM)-1);
1760 }
1761 }
1762
1763 if (HOOK_CallHooks( WH_KEYBOARD, remove ? HC_ACTION : HC_NOREMOVE,
1764 LOWORD(msg->wParam), msg->lParam, TRUE ))
1765 {
1766 /* skip this message */
1767 HOOK_CallHooks( WH_CBT, HCBT_KEYSKIPPED, LOWORD(msg->wParam), msg->lParam, TRUE );
1768 accept_hardware_message( hw_id, TRUE, 0 );
1769 return FALSE;
1770 }
1771 accept_hardware_message( hw_id, remove, 0 );
1772
1773 if ( msg->message == WM_KEYDOWN || msg->message == WM_KEYUP )
1774 if ( ImmProcessKey(msg->hwnd, GetKeyboardLayout(0), msg->wParam, msg->lParam, 0) )
1775 msg->wParam = VK_PROCESSKEY;
1776
1777 return TRUE;
1778 }
1779
1780
1781 /***********************************************************************
1782 * process_mouse_message
1783 *
1784 * returns TRUE if the contents of 'msg' should be passed to the application
1785 */
1786 static BOOL process_mouse_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1787 UINT first, UINT last, BOOL remove )
1788 {
1789 static MSG clk_msg;
1790
1791 POINT pt;
1792 UINT message;
1793 INT hittest;
1794 EVENTMSG event;
1795 GUITHREADINFO info;
1796 MOUSEHOOKSTRUCT hook;
1797 BOOL eatMsg;
1798
1799 /* find the window to dispatch this mouse message to */
1800
1801 GetGUIThreadInfo( GetCurrentThreadId(), &info );
1802 if (info.hwndCapture)
1803 {
1804 hittest = HTCLIENT;
1805 msg->hwnd = info.hwndCapture;
1806 }
1807 else
1808 {
1809 msg->hwnd = WINPOS_WindowFromPoint( msg->hwnd, msg->pt, &hittest );
1810 }
1811
1812 if (!msg->hwnd || !WIN_IsCurrentThread( msg->hwnd ))
1813 {
1814 accept_hardware_message( hw_id, TRUE, msg->hwnd );
1815 return FALSE;
1816 }
1817
1818 /* FIXME: is this really the right place for this hook? */
1819 event.message = msg->message;
1820 event.time = msg->time;
1821 event.hwnd = msg->hwnd;
1822 event.paramL = msg->pt.x;
1823 event.paramH = msg->pt.y;
1824 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1825
1826 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1827
1828 pt = msg->pt;
1829 message = msg->message;
1830 /* Note: windows has no concept of a non-client wheel message */
1831 if (message != WM_MOUSEWHEEL)
1832 {
1833 if (hittest != HTCLIENT)
1834 {
1835 message += WM_NCMOUSEMOVE - WM_MOUSEMOVE;
1836 msg->wParam = hittest;
1837 }
1838 else
1839 {
1840 /* coordinates don't get translated while tracking a menu */
1841 /* FIXME: should differentiate popups and top-level menus */
1842 if (!(info.flags & GUI_INMENUMODE))
1843 ScreenToClient( msg->hwnd, &pt );
1844 }
1845 }
1846 msg->lParam = MAKELONG( pt.x, pt.y );
1847
1848 /* translate double clicks */
1849
1850 if ((msg->message == WM_LBUTTONDOWN) ||
1851 (msg->message == WM_RBUTTONDOWN) ||
1852 (msg->message == WM_MBUTTONDOWN) ||
1853 (msg->message == WM_XBUTTONDOWN))
1854 {
1855 BOOL update = remove;
1856
1857 /* translate double clicks -
1858 * note that ...MOUSEMOVEs can slip in between
1859 * ...BUTTONDOWN and ...BUTTONDBLCLK messages */
1860
1861 if ((info.flags & (GUI_INMENUMODE|GUI_INMOVESIZE)) ||
1862 hittest != HTCLIENT ||
1863 (GetClassLongA( msg->hwnd, GCL_STYLE ) & CS_DBLCLKS))
1864 {
1865 if ((msg->message == clk_msg.message) &&
1866 (msg->hwnd == clk_msg.hwnd) &&
1867 (msg->wParam == clk_msg.wParam) &&
1868 (msg->time - clk_msg.time < GetDoubleClickTime()) &&
1869 (abs(msg->pt.x - clk_msg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
1870 (abs(msg->pt.y - clk_msg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
1871 {
1872 message += (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
1873 if (update)
1874 {
1875 clk_msg.message = 0; /* clear the double click conditions */
1876 update = FALSE;
1877 }
1878 }
1879 }
1880 if (message < first || message > last) return FALSE;
1881 /* update static double click conditions */
1882 if (update) clk_msg = *msg;
1883 }
1884 else
1885 {
1886 if (message < first || message > last) return FALSE;
1887 }
1888
1889 /* message is accepted now (but may still get dropped) */
1890
1891 hook.pt = msg->pt;
1892 hook.hwnd = msg->hwnd;
1893 hook.wHitTestCode = hittest;
1894 hook.dwExtraInfo = extra_info;
1895 if (HOOK_CallHooks( WH_MOUSE, remove ? HC_ACTION : HC_NOREMOVE,
1896 message, (LPARAM)&hook, TRUE ))
1897 {
1898 hook.pt = msg->pt;
1899 hook.hwnd = msg->hwnd;
1900 hook.wHitTestCode = hittest;
1901 hook.dwExtraInfo = extra_info;
1902 HOOK_CallHooks( WH_CBT, HCBT_CLICKSKIPPED, message, (LPARAM)&hook, TRUE );
1903 accept_hardware_message( hw_id, TRUE, 0 );
1904 return FALSE;
1905 }
1906
1907 if ((hittest == HTERROR) || (hittest == HTNOWHERE))
1908 {
1909 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd,
1910 MAKELONG( hittest, msg->message ));
1911 accept_hardware_message( hw_id, TRUE, 0 );
1912 return FALSE;
1913 }
1914
1915 accept_hardware_message( hw_id, remove, 0 );
1916
1917 if (!remove || info.hwndCapture)
1918 {
1919 msg->message = message;
1920 return TRUE;
1921 }
1922
1923 eatMsg = FALSE;
1924
1925 if ((msg->message == WM_LBUTTONDOWN) ||
1926 (msg->message == WM_RBUTTONDOWN) ||
1927 (msg->message == WM_MBUTTONDOWN) ||
1928 (msg->message == WM_XBUTTONDOWN))
1929 {
1930 /* Send the WM_PARENTNOTIFY,
1931 * note that even for double/nonclient clicks
1932 * notification message is still WM_L/M/RBUTTONDOWN.
1933 */
1934 send_parent_notify( msg->hwnd, msg->message, 0, msg->pt );
1935
1936 /* Activate the window if needed */
1937
1938 if (msg->hwnd != info.hwndActive)
1939 {
1940 HWND hwndTop = msg->hwnd;
1941 while (hwndTop)
1942 {
1943 if ((GetWindowLongW( hwndTop, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) != WS_CHILD) break;
1944 hwndTop = GetParent( hwndTop );
1945 }
1946
1947 if (hwndTop && hwndTop != GetDesktopWindow())
1948 {
1949 LONG ret = SendMessageW( msg->hwnd, WM_MOUSEACTIVATE, (WPARAM)hwndTop,
1950 MAKELONG( hittest, msg->message ) );
1951 switch(ret)
1952 {
1953 case MA_NOACTIVATEANDEAT:
1954 eatMsg = TRUE;
1955 /* fall through */
1956 case MA_NOACTIVATE:
1957 break;
1958 case MA_ACTIVATEANDEAT:
1959 eatMsg = TRUE;
1960 /* fall through */
1961 case MA_ACTIVATE:
1962 case 0:
1963 if (!FOCUS_MouseActivate( hwndTop )) eatMsg = TRUE;
1964 break;
1965 default:
1966 WARN( "unknown WM_MOUSEACTIVATE code %d\n", ret );
1967 break;
1968 }
1969 }
1970 }
1971 }
1972
1973 /* send the WM_SETCURSOR message */
1974
1975 /* Windows sends the normal mouse message as the message parameter
1976 in the WM_SETCURSOR message even if it's non-client mouse message */
1977 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd, MAKELONG( hittest, msg->message ));
1978
1979 msg->message = message;
1980 return !eatMsg;
1981 }
1982
1983
1984 /***********************************************************************
1985 * process_hardware_message
1986 *
1987 * Process a hardware message; return TRUE if message should be passed on to the app
1988 */
1989 static BOOL process_hardware_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1990 UINT first, UINT last, BOOL remove )
1991 {
1992 if (is_keyboard_message( msg->message ))
1993 return process_keyboard_message( msg, hw_id, hwnd_filter, first, last, remove );
1994
1995 if (is_mouse_message( msg->message ))
1996 return process_mouse_message( msg, hw_id, extra_info, hwnd_filter, first, last, remove );
1997
1998 ERR( "unknown message type %x\n", msg->message );
1999 return FALSE;
2000 }
2001
2002
2003 /***********************************************************************
2004 * call_sendmsg_callback
2005 *
2006 * Call the callback function of SendMessageCallback.
2007 */
2008 static inline void call_sendmsg_callback( SENDASYNCPROC callback, HWND hwnd, UINT msg,
2009 ULONG_PTR data, LRESULT result )
2010 {
2011 if (!callback) return;
2012
2013 if (TRACE_ON(relay))
2014 DPRINTF( "%04x:Call message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
2015 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
2016 data, result );
2017 callback( hwnd, msg, data, result );
2018 if (TRACE_ON(relay))
2019 DPRINTF( "%04x:Ret message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
2020 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
2021 data, result );
2022 }
2023
2024
2025 /***********************************************************************
2026 * peek_message
2027 *
2028 * Peek for a message matching the given parameters. Return FALSE if none available.
2029 * All pending sent messages are processed before returning.
2030 */
2031 static BOOL peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
2032 {
2033 LRESULT result;
2034 ULONG_PTR extra_info = 0;
2035 struct user_thread_info *thread_info = get_user_thread_info();
2036 struct received_message_info info, *old_info;
2037 unsigned int wake_mask, changed_mask = HIWORD(flags);
2038 unsigned int hw_id = 0; /* id of previous hardware message */
2039
2040 if (!first && !last) last = ~0;
2041 if (!changed_mask) changed_mask = QS_ALLINPUT;
2042 wake_mask = changed_mask & (QS_SENDMESSAGE | QS_SMRESULT);
2043
2044 for (;;)
2045 {
2046 NTSTATUS res;
2047 void *buffer = NULL;
2048 size_t size = 0, buffer_size = 0;
2049
2050 do /* loop while buffer is too small */
2051 {
2052 if (buffer_size && !(buffer = HeapAlloc( GetProcessHeap(), 0, buffer_size )))
2053 return FALSE;
2054 SERVER_START_REQ( get_message )
2055 {
2056 req->flags = flags;
2057 req->get_win = hwnd;
2058 req->get_first = first;
2059 req->get_last = last;
2060 req->hw_id = hw_id;
2061 req->wake_mask = wake_mask;
2062 req->changed_mask = changed_mask;
2063 if (buffer_size) wine_server_set_reply( req, buffer, buffer_size );
2064 if (!(res = wine_server_call( req )))
2065 {
2066 size = wine_server_reply_size( reply );
2067 info.type = reply->type;
2068 info.msg.hwnd = reply->win;
2069 info.msg.message = reply->msg;
2070 info.msg.wParam = reply->wparam;
2071 info.msg.lParam = reply->lparam;
2072 info.msg.time = reply->time;
2073 info.msg.pt.x = reply->x;
2074 info.msg.pt.y = reply->y;
2075 hw_id = reply->hw_id;
2076 extra_info = reply->info;
2077 thread_info->active_hooks = reply->active_hooks;
2078 }
2079 else
2080 {
2081 HeapFree( GetProcessHeap(), 0, buffer );
2082 buffer_size = reply->total;
2083 }
2084 }
2085 SERVER_END_REQ;
2086 } while (res == STATUS_BUFFER_OVERFLOW);
2087
2088 if (res) return FALSE;
2089
2090 TRACE( "got type %d msg %x (%s) hwnd %p wp %lx lp %lx\n",
2091 info.type, info.msg.message,
2092 (info.type == MSG_WINEVENT) ? "MSG_WINEVENT" : SPY_GetMsgName(info.msg.message, info.msg.hwnd),
2093 info.msg.hwnd, info.msg.wParam, info.msg.lParam );
2094
2095 switch(info.type)
2096 {
2097 case MSG_ASCII:
2098 case MSG_UNICODE:
2099 info.flags = ISMEX_SEND;
2100 break;
2101 case MSG_NOTIFY:
2102 info.flags = ISMEX_NOTIFY;
2103 break;
2104 case MSG_CALLBACK:
2105 info.flags = ISMEX_CALLBACK;
2106 break;
2107 case MSG_CALLBACK_RESULT:
2108 if (size >= sizeof(struct callback_msg_data))
2109 {
2110 const struct callback_msg_data *data = (const struct callback_msg_data *)buffer;
2111 call_sendmsg_callback( data->callback, info.msg.hwnd,
2112 info.msg.message, data->data, data->result );
2113 }
2114 goto next;
2115 case MSG_WINEVENT:
2116 if (size >= sizeof(struct winevent_msg_data))
2117 {
2118 WINEVENTPROC hook_proc;
2119 const struct winevent_msg_data *data = (const struct winevent_msg_data *)buffer;
2120
2121 hook_proc = data->hook_proc;
2122 size -= sizeof(*data);
2123 if (size)
2124 {
2125 WCHAR module[MAX_PATH];
2126
2127 size = min( size, (MAX_PATH - 1) * sizeof(WCHAR) );
2128 memcpy( module, buffer, size );
2129 module[size / sizeof(WCHAR)] = 0;
2130 if (!(hook_proc = get_hook_proc( hook_proc, module )))
2131 {
2132 ERR( "invalid winevent hook module name %s\n", debugstr_w(module) );
2133 goto next;
2134 }
2135 }
2136
2137 if (TRACE_ON(relay))
2138 DPRINTF( "%04x:Call 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 hook_proc( data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2144 info.msg.lParam, data->tid, info.msg.time );
2145
2146 if (TRACE_ON(relay))
2147 DPRINTF( "%04x:Ret winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%lx,child_id=%lx,tid=%04x,time=%x)\n",
2148 GetCurrentThreadId(), hook_proc,
2149 data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2150 info.msg.lParam, data->tid, info.msg.time);
2151 }
2152 goto next;
2153 case MSG_OTHER_PROCESS:
2154 info.flags = ISMEX_SEND;
2155 if (!unpack_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2156 &info.msg.lParam, &buffer, size ))
2157 {
2158 /* ignore it */
2159 reply_message( &info, 0, TRUE );
2160 goto next;
2161 }
2162 break;
2163 case MSG_HARDWARE:
2164 if (!process_hardware_message( &info.msg, hw_id, extra_info,
2165 hwnd, first, last, flags & PM_REMOVE ))
2166 {
2167 TRACE("dropping msg %x\n", info.msg.message );
2168 goto next; /* ignore it */
2169 }
2170 thread_info->GetMessagePosVal = MAKELONG( info.msg.pt.x, info.msg.pt.y );
2171 /* fall through */
2172 case MSG_POSTED:
2173 thread_info->GetMessageExtraInfoVal = extra_info;
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 HeapFree( GetProcessHeap(), 0, buffer );
2182 return TRUE;
2183 }
2184
2185 /* if we get here, we have a sent message; call the window procedure */
2186 old_info = thread_info->receive_info;
2187 thread_info->receive_info = &info;
2188 result = call_window_proc( info.msg.hwnd, info.msg.message, info.msg.wParam,
2189 info.msg.lParam, (info.type != MSG_ASCII), FALSE,
2190 WMCHAR_MAP_RECVMESSAGE );
2191 reply_message( &info, result, TRUE );
2192 thread_info->receive_info = old_info;
2193
2194 /* if some PM_QS* flags were specified, only handle sent messages from now on */
2195 if (HIWORD(flags)) flags = PM_QS_SENDMESSAGE | LOWORD(flags);
2196 next:
2197 HeapFree( GetProcessHeap(), 0, buffer );
2198 }
2199 }
2200
2201
2202 /***********************************************************************
2203 * process_sent_messages
2204 *
2205 * Process all pending sent messages.
2206 */
2207 static inline void process_sent_messages(void)
2208 {
2209 MSG msg;
2210 peek_message( &msg, 0, 0, 0, PM_REMOVE | PM_QS_SENDMESSAGE );
2211 }
2212
2213
2214 /***********************************************************************
2215 * get_server_queue_handle
2216 *
2217 * Get a handle to the server message queue for the current thread.
2218 */
2219 static HANDLE get_server_queue_handle(void)
2220 {
2221 struct user_thread_info *thread_info = get_user_thread_info();
2222 HANDLE ret;
2223
2224 if (!(ret = thread_info->server_queue))
2225 {
2226 SERVER_START_REQ( get_msg_queue )
2227 {
2228 wine_server_call( req );
2229 ret = reply->handle;
2230 }
2231 SERVER_END_REQ;
2232 thread_info->server_queue = ret;
2233 if (!ret) ERR( "Cannot get server thread queue\n" );
2234 }
2235 return ret;
2236 }
2237
2238
2239 /***********************************************************************
2240 * wait_message_reply
2241 *
2242 * Wait until a sent message gets replied to.
2243 */
2244 static void wait_message_reply( UINT flags )
2245 {
2246 HANDLE server_queue = get_server_queue_handle();
2247
2248 for (;;)
2249 {
2250 unsigned int wake_bits = 0;
2251 DWORD dwlc, res;
2252
2253 SERVER_START_REQ( set_queue_mask )
2254 {
2255 req->wake_mask = QS_SMRESULT | ((flags & SMTO_BLOCK) ? 0 : QS_SENDMESSAGE);
2256 req->changed_mask = req->wake_mask;
2257 req->skip_wait = 1;
2258 if (!wine_server_call( req ))
2259 wake_bits = reply->wake_bits;
2260 }
2261 SERVER_END_REQ;
2262
2263 if (wake_bits & QS_SMRESULT) return; /* got a result */
2264 if (wake_bits & QS_SENDMESSAGE)
2265 {
2266 /* Process the sent message immediately */
2267 process_sent_messages();
2268 continue;
2269 }
2270
2271 /* now wait for it */
2272
2273 ReleaseThunkLock( &dwlc );
2274 res = USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue,
2275 INFINITE, QS_SENDMESSAGE, 0 );
2276 if (dwlc) RestoreThunkLock( dwlc );
2277 }
2278 }
2279
2280 /***********************************************************************
2281 * put_message_in_queue
2282 *
2283 * Put a sent message into the destination queue.
2284 * For inter-process message, reply_size is set to expected size of reply data.
2285 */
2286 static BOOL put_message_in_queue( const struct send_message_info *info, size_t *reply_size )
2287 {
2288 struct packed_message data;
2289 message_data_t msg_data;
2290 unsigned int res;
2291 int i;
2292 timeout_t timeout = TIMEOUT_INFINITE;
2293
2294 /* Check for INFINITE timeout for compatibility with Win9x,
2295 * although Windows >= NT does not do so
2296 */
2297 if (info->type != MSG_NOTIFY &&
2298 info->type != MSG_CALLBACK &&
2299 info->type != MSG_POSTED &&
2300 info->timeout &&
2301 info->timeout != INFINITE)
2302 {
2303 /* timeout is signed despite the prototype */
2304 timeout = (timeout_t)max( 0, (int)info->timeout ) * -10000;
2305 }
2306
2307 data.count = 0;
2308 if (info->type == MSG_OTHER_PROCESS)
2309 {
2310 *reply_size = pack_message( info->hwnd, info->msg, info->wparam, info->lparam, &data );
2311 if (data.count == -1)
2312 {
2313 WARN( "cannot pack message %x\n", info->msg );
2314 return FALSE;
2315 }
2316 }
2317 else if (info->type == MSG_CALLBACK)
2318 {
2319 msg_data.callback.callback = info->callback;
2320 msg_data.callback.data = info->data;
2321 msg_data.callback.result = 0;
2322 data.data[0] = &msg_data;
2323 data.size[0] = sizeof(msg_data.callback);
2324 data.count = 1;
2325 }
2326 else if (info->type == MSG_POSTED && info->msg >= WM_DDE_FIRST && info->msg <= WM_DDE_LAST)
2327 {
2328 return post_dde_message( &data, info );
2329 }
2330
2331 SERVER_START_REQ( send_message )
2332 {
2333 req->id = info->dest_tid;
2334 req->type = info->type;
2335 req->flags = 0;
2336 req->win = info->hwnd;
2337 req->msg = info->msg;
2338 req->wparam = info->wparam;
2339 req->lparam = info->lparam;
2340 req->timeout = timeout;
2341
2342 if (info->flags & SMTO_ABORTIFHUNG) req->flags |= SEND_MSG_ABORT_IF_HUNG;
2343 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
2344 if ((res = wine_server_call( req )))
2345 {
2346 if (res == STATUS_INVALID_PARAMETER)
2347 /* FIXME: find a STATUS_ value for this one */
2348 SetLastError( ERROR_INVALID_THREAD_ID );
2349 else
2350 SetLastError( RtlNtStatusToDosError(res) );
2351 }
2352 }
2353 SERVER_END_REQ;
2354 return !res;
2355 }
2356
2357
2358 /***********************************************************************
2359 * retrieve_reply
2360 *
2361 * Retrieve a message reply from the server.
2362 */
2363 static LRESULT retrieve_reply( const struct send_message_info *info,
2364 size_t reply_size, LRESULT *result )
2365 {
2366 NTSTATUS status;
2367 void *reply_data = NULL;
2368
2369 if (reply_size)
2370 {
2371 if (!(reply_data = HeapAlloc( GetProcessHeap(), 0, reply_size )))
2372 {
2373 WARN( "no memory for reply, will be truncated\n" );
2374 reply_size = 0;
2375 }
2376 }
2377 SERVER_START_REQ( get_message_reply )
2378 {
2379 req->cancel = 1;
2380 if (reply_size) wine_server_set_reply( req, reply_data, reply_size );
2381 if (!(status = wine_server_call( req ))) *result = reply->result;
2382 reply_size = wine_server_reply_size( reply );
2383 }
2384 SERVER_END_REQ;
2385 if (!status && reply_size)
2386 unpack_reply( info->hwnd, info->msg, info->wparam, info->lparam, reply_data, reply_size );
2387
2388 HeapFree( GetProcessHeap(), 0, reply_data );
2389
2390 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx got reply %lx (err=%d)\n",
2391 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam,
2392 info->lparam, *result, status );
2393
2394 /* MSDN states that last error is 0 on timeout, but at least NT4 returns ERROR_TIMEOUT */
2395 if (status) SetLastError( RtlNtStatusToDosError(status) );
2396 return !status;
2397 }
2398
2399
2400 /***********************************************************************
2401 * send_inter_thread_message
2402 */
2403 static LRESULT send_inter_thread_message( const struct send_message_info *info, LRESULT *res_ptr )
2404 {
2405 size_t reply_size = 0;
2406
2407 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx\n",
2408 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam, info->lparam );
2409
2410 USER_CheckNotLock();
2411
2412 if (!put_message_in_queue( info, &reply_size )) return 0;
2413
2414 /* there's no reply to wait for on notify/callback messages */
2415 if (info->type == MSG_NOTIFY || info->type == MSG_CALLBACK) return 1;
2416
2417 wait_message_reply( info->flags );
2418 return retrieve_reply( info, reply_size, res_ptr );
2419 }
2420
2421
2422 /***********************************************************************
2423 * send_inter_thread_callback
2424 */
2425 static LRESULT send_inter_thread_callback( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
2426 LRESULT *result, void *arg )
2427 {
2428 struct send_message_info *info = arg;
2429 info->hwnd = hwnd;
2430 info->msg = msg;
2431 info->wparam = wp;
2432 info->lparam = lp;
2433 return send_inter_thread_message( info, result );
2434 }
2435
2436
2437 /***********************************************************************
2438 * send_message
2439 *
2440 * Backend implementation of the various SendMessage functions.
2441 */
2442 static BOOL send_message( struct send_message_info *info, DWORD_PTR *res_ptr, BOOL unicode )
2443 {
2444 DWORD dest_pid;
2445 BOOL ret;
2446 LRESULT result;
2447
2448 if (is_broadcast(info->hwnd))
2449 {
2450 EnumWindows( broadcast_message_callback, (LPARAM)info );
2451 if (res_ptr) *res_ptr = 1;
2452 return TRUE;
2453 }
2454
2455 if (!(info->dest_tid = GetWindowThreadProcessId( info->hwnd, &dest_pid ))) return FALSE;
2456
2457 if (USER_IsExitingThread( info->dest_tid )) return FALSE;
2458
2459 SPY_EnterMessage( SPY_SENDMESSAGE, info->hwnd, info->msg, info->wparam, info->lparam );
2460
2461 if (info->dest_tid == GetCurrentThreadId())
2462 {
2463 result = call_window_proc( info->hwnd, info->msg, info->wparam, info->lparam,
2464 unicode, TRUE, info->wm_char );
2465 if (info->type == MSG_CALLBACK)
2466 call_sendmsg_callback( info->callback, info->hwnd, info->msg, info->data, result );
2467 ret = TRUE;
2468 }
2469 else
2470 {
2471 if (dest_pid != GetCurrentProcessId() && (info->type == MSG_ASCII || info->type == MSG_UNICODE))
2472 info->type = MSG_OTHER_PROCESS;
2473
2474 /* MSG_ASCII can be sent unconverted except for WM_CHAR; everything else needs to be Unicode */
2475 if (!unicode && is_unicode_message( info->msg ) &&
2476 (info->type != MSG_ASCII || info->msg == WM_CHAR))
2477 ret = WINPROC_CallProcAtoW( send_inter_thread_callback, info->hwnd, info->msg,
2478 info->wparam, info->lparam, &result, info, info->wm_char );
2479 else
2480 ret = send_inter_thread_message( info, &result );
2481 }
2482
2483 SPY_ExitMessage( SPY_RESULT_OK, info->hwnd, info->msg, result, info->wparam, info->lparam );
2484 if (ret && res_ptr) *res_ptr = result;
2485 return ret;
2486 }
2487
2488
2489 /***********************************************************************
2490 * MSG_SendInternalMessageTimeout
2491 *
2492 * Same as SendMessageTimeoutW but sends the message to a specific thread
2493 * without requiring a window handle. Only works for internal Wine messages.
2494 */
2495 LRESULT MSG_SendInternalMessageTimeout( DWORD dest_pid, DWORD dest_tid,
2496 UINT msg, WPARAM wparam, LPARAM lparam,
2497 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2498 {
2499 struct send_message_info info;
2500 LRESULT ret, result;
2501
2502 assert( msg & 0x80000000 ); /* must be an internal Wine message */
2503
2504 info.type = MSG_UNICODE;
2505 info.dest_tid = dest_tid;
2506 info.hwnd = 0;
2507 info.msg = msg;
2508 info.wparam = wparam;
2509 info.lparam = lparam;
2510 info.flags = flags;
2511 info.timeout = timeout;
2512
2513 if (USER_IsExitingThread( dest_tid )) return 0;
2514
2515 if (dest_tid == GetCurrentThreadId())
2516 {
2517 result = handle_internal_message( 0, msg, wparam, lparam );
2518 ret = 1;
2519 }
2520 else
2521 {
2522 if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
2523 ret = send_inter_thread_message( &info, &result );
2524 }
2525 if (ret && res_ptr) *res_ptr = result;
2526 return ret;
2527 }
2528
2529
2530 /***********************************************************************
2531 * SendMessageTimeoutW (USER32.@)
2532 */
2533 LRESULT WINAPI SendMessageTimeoutW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2534 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2535 {
2536 struct send_message_info info;
2537
2538 info.type = MSG_UNICODE;
2539 info.hwnd = hwnd;
2540 info.msg = msg;
2541 info.wparam = wparam;
2542 info.lparam = lparam;
2543 info.flags = flags;
2544 info.timeout = timeout;
2545
2546 return send_message( &info, res_ptr, TRUE );
2547 }
2548
2549 /***********************************************************************
2550 * SendMessageTimeoutA (USER32.@)
2551 */
2552 LRESULT WINAPI SendMessageTimeoutA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2553 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2554 {
2555 struct send_message_info info;
2556
2557 info.type = MSG_ASCII;
2558 info.hwnd = hwnd;
2559 info.msg = msg;
2560 info.wparam = wparam;
2561 info.lparam = lparam;
2562 info.flags = flags;
2563 info.timeout = timeout;
2564 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2565
2566 return send_message( &info, res_ptr, FALSE );
2567 }
2568
2569
2570 /***********************************************************************
2571 * SendMessageW (USER32.@)
2572 */
2573 LRESULT WINAPI SendMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2574 {
2575 DWORD_PTR res = 0;
2576 struct send_message_info info;
2577
2578 info.type = MSG_UNICODE;
2579 info.hwnd = hwnd;
2580 info.msg = msg;
2581 info.wparam = wparam;
2582 info.lparam = lparam;
2583 info.flags = SMTO_NORMAL;
2584 info.timeout = 0;
2585
2586 send_message( &info, &res, TRUE );
2587 return res;
2588 }
2589
2590
2591 /***********************************************************************
2592 * SendMessageA (USER32.@)
2593 */
2594 LRESULT WINAPI SendMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2595 {
2596 DWORD_PTR res = 0;
2597 struct send_message_info info;
2598
2599 info.type = MSG_ASCII;
2600 info.hwnd = hwnd;
2601 info.msg = msg;
2602 info.wparam = wparam;
2603 info.lparam = lparam;
2604 info.flags = SMTO_NORMAL;
2605 info.timeout = 0;
2606 info.wm_char = WMCHAR_MAP_SENDMESSAGE;
2607
2608 send_message( &info, &res, FALSE );
2609 return res;
2610 }
2611
2612
2613 /***********************************************************************
2614 * SendNotifyMessageA (USER32.@)
2615 */
2616 BOOL WINAPI SendNotifyMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2617 {
2618 struct send_message_info info;
2619
2620 if (is_pointer_message(msg))
2621 {
2622 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2623 return FALSE;
2624 }
2625
2626 info.type = MSG_NOTIFY;
2627 info.hwnd = hwnd;
2628 info.msg = msg;
2629 info.wparam = wparam;
2630 info.lparam = lparam;
2631 info.flags = 0;
2632 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2633
2634 return send_message( &info, NULL, FALSE );
2635 }
2636
2637
2638 /***********************************************************************
2639 * SendNotifyMessageW (USER32.@)
2640 */
2641 BOOL WINAPI SendNotifyMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2642 {
2643 struct send_message_info info;
2644
2645 if (is_pointer_message(msg))
2646 {
2647 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2648 return FALSE;
2649 }
2650
2651 info.type = MSG_NOTIFY;
2652 info.hwnd = hwnd;
2653 info.msg = msg;
2654 info.wparam = wparam;
2655 info.lparam = lparam;
2656 info.flags = 0;
2657
2658 return send_message( &info, NULL, TRUE );
2659 }
2660
2661
2662 /***********************************************************************
2663 * SendMessageCallbackA (USER32.@)
2664 */
2665 BOOL WINAPI SendMessageCallbackA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2666 SENDASYNCPROC callback, ULONG_PTR data )
2667 {
2668 struct send_message_info info;
2669
2670 if (is_pointer_message(msg))
2671 {
2672 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2673 return FALSE;
2674 }
2675
2676 info.type = MSG_CALLBACK;
2677 info.hwnd = hwnd;
2678 info.msg = msg;
2679 info.wparam = wparam;
2680 info.lparam = lparam;
2681 info.callback = callback;
2682 info.data = data;
2683 info.flags = 0;
2684 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2685
2686 return send_message( &info, NULL, FALSE );
2687 }
2688
2689
2690 /***********************************************************************
2691 * SendMessageCallbackW (USER32.@)
2692 */
2693 BOOL WINAPI SendMessageCallbackW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2694 SENDASYNCPROC callback, ULONG_PTR data )
2695 {
2696 struct send_message_info info;
2697
2698 if (is_pointer_message(msg))
2699 {
2700 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2701 return FALSE;
2702 }
2703
2704 info.type = MSG_CALLBACK;
2705 info.hwnd = hwnd;
2706 info.msg = msg;
2707 info.wparam = wparam;
2708 info.lparam = lparam;
2709 info.callback = callback;
2710 info.data = data;
2711 info.flags = 0;
2712
2713 return send_message( &info, NULL, TRUE );
2714 }
2715
2716
2717 /***********************************************************************
2718 * ReplyMessage (USER32.@)
2719 */
2720 BOOL WINAPI ReplyMessage( LRESULT result )
2721 {
2722 struct received_message_info *info = get_user_thread_info()->receive_info;
2723
2724 if (!info) return FALSE;
2725 reply_message( info, result, FALSE );
2726 return TRUE;
2727 }
2728
2729
2730 /***********************************************************************
2731 * InSendMessage (USER32.@)
2732 */
2733 BOOL WINAPI InSendMessage(void)
2734 {
2735 return (InSendMessageEx(NULL) & (ISMEX_SEND|ISMEX_REPLIED)) == ISMEX_SEND;
2736 }
2737
2738
2739 /***********************************************************************
2740 * InSendMessageEx (USER32.@)
2741 */
2742 DWORD WINAPI InSendMessageEx( LPVOID reserved )
2743 {
2744 struct received_message_info *info = get_user_thread_info()->receive_info;
2745
2746 if (info) return info->flags;
2747 return ISMEX_NOSEND;
2748 }
2749
2750
2751 /***********************************************************************
2752 * PostMessageA (USER32.@)
2753 */
2754 BOOL WINAPI PostMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2755 {
2756 if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_POSTMESSAGE )) return TRUE;
2757 return PostMessageW( hwnd, msg, wparam, lparam );
2758 }
2759
2760
2761 /***********************************************************************
2762 * PostMessageW (USER32.@)
2763 */
2764 BOOL WINAPI PostMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2765 {
2766 struct send_message_info info;
2767
2768 if (is_pointer_message( msg ))
2769 {
2770 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2771 return FALSE;
2772 }
2773
2774 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx\n",
2775 hwnd, msg, SPY_GetMsgName(msg, hwnd), wparam, lparam );
2776
2777 info.type = MSG_POSTED;
2778 info.hwnd = hwnd;
2779 info.msg = msg;
2780 info.wparam = wparam;
2781 info.lparam = lparam;
2782 info.flags = 0;
2783
2784 if (is_broadcast(hwnd))
2785 {
2786 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2787 return TRUE;
2788 }
2789
2790 if (!hwnd) return PostThreadMessageW( GetCurrentThreadId(), msg, wparam, lparam );
2791
2792 if (!(info.dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2793
2794 if (USER_IsExitingThread( info.dest_tid )) return TRUE;
2795
2796 return put_message_in_queue( &info, NULL );
2797 }
2798
2799
2800 /**********************************************************************
2801 * PostThreadMessageA (USER32.@)
2802 */
2803 BOOL WINAPI PostThreadMessageA( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2804 {
2805 if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_POSTMESSAGE )) return TRUE;
2806 return PostThreadMessageW( thread, msg, wparam, lparam );
2807 }
2808
2809
2810 /**********************************************************************
2811 * PostThreadMessageW (USER32.@)
2812 */
2813 BOOL WINAPI PostThreadMessageW( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2814 {
2815 struct send_message_info info;
2816
2817 if (is_pointer_message( msg ))
2818 {
2819 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2820 return FALSE;
2821 }
2822 if (USER_IsExitingThread( thread )) return TRUE;
2823
2824 info.type = MSG_POSTED;
2825 info.dest_tid = thread;
2826 info.hwnd = 0;
2827 info.msg = msg;
2828 info.wparam = wparam;
2829 info.lparam = lparam;
2830 info.flags = 0;
2831 return put_message_in_queue( &info, NULL );
2832 }
2833
2834
2835 /***********************************************************************
2836 * PostQuitMessage (USER32.@)
2837 *
2838 * Posts a quit message to the current thread's message queue.
2839 *
2840 * PARAMS
2841 * exit_code [I] Exit code to return from message loop.
2842 *
2843 * RETURNS
2844 * Nothing.
2845 *
2846 * NOTES
2847 * This function is not the same as calling:
2848 *|PostThreadMessage(GetCurrentThreadId(), WM_QUIT, exit_code, 0);
2849 * It instead sets a flag in the message queue that signals it to generate
2850 * a WM_QUIT message when there are no other pending sent or posted messages
2851 * in the queue.
2852 */
2853 void WINAPI PostQuitMessage( INT exit_code )
2854 {
2855 SERVER_START_REQ( post_quit_message )
2856 {
2857 req->exit_code = exit_code;
2858 wine_server_call( req );
2859 }
2860 SERVER_END_REQ;
2861 }
2862
2863
2864 /***********************************************************************
2865 * PeekMessageW (USER32.@)
2866 */
2867 BOOL WINAPI PeekMessageW( MSG *msg_out, HWND hwnd, UINT first, UINT last, UINT flags )
2868 {
2869 struct user_thread_info *thread_info = get_user_thread_info();
2870 MSG msg;
2871
2872 USER_CheckNotLock();
2873
2874 /* check for graphics events */
2875 USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
2876
2877 hwnd = WIN_GetFullHandle( hwnd );
2878
2879 for (;;)
2880 {
2881 if (!peek_message( &msg, hwnd, first, last, flags ))
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 if (msg.message & 0x80000000)
2893 {
2894 if (!(flags & PM_REMOVE))
2895 {
2896 /* Have to remove the message explicitly.
2897 Do this before handling it, because the message handler may
2898 call PeekMessage again */
2899 peek_message( &msg, msg.hwnd, msg.message, msg.message, flags | PM_REMOVE );
2900 }
2901 handle_internal_message( msg.hwnd, msg.message, msg.wParam, msg.lParam );
2902 }
2903 else break;
2904 }
2905
2906 thread_info->GetMessageTimeVal = msg.time;
2907 msg.pt.x = (short)LOWORD( thread_info->GetMessagePosVal );
2908 msg.pt.y = (short)HIWORD( thread_info->GetMessagePosVal );
2909
2910 HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, flags & PM_REMOVE, (LPARAM)&msg, TRUE );
2911
2912 /* copy back our internal safe copy of message data to msg_out.
2913 * msg_out is a variable from the *program*, so it can't be used
2914 * internally as it can get "corrupted" by our use of SendMessage()
2915 * (back to the program) inside the message handling itself. */
2916 if (!msg_out)
2917 {
2918 SetLastError( ERROR_NOACCESS );
2919 return FALSE;
2920 }
2921 *msg_out = msg;
2922 return TRUE;
2923 }
2924
2925
2926 /***********************************************************************
2927 * PeekMessageA (USER32.@)
2928 */
2929 BOOL WINAPI PeekMessageA( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
2930 {
2931 if (get_pending_wmchar( msg, first, last, (flags & PM_REMOVE) )) return TRUE;
2932 if (!PeekMessageW( msg, hwnd, first, last, flags )) return FALSE;
2933 map_wparam_WtoA( msg, (flags & PM_REMOVE) );
2934 return TRUE;
2935 }
2936
2937
2938 /***********************************************************************
2939 * GetMessageW (USER32.@)
2940 */
2941 BOOL WINAPI GetMessageW( MSG *msg, HWND hwnd, UINT first, UINT last )
2942 {
2943 HANDLE server_queue = get_server_queue_handle();
2944 int mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
2945
2946 if (first || last)
2947 {
2948 if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
2949 if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
2950 ((first <= WM_NCMOUSELAST) && (last >= WM_NCMOUSEFIRST)) ) mask |= QS_MOUSE;
2951 if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER;
2952 if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER;
2953 if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT;
2954 }
2955 else mask = QS_ALLINPUT;
2956
2957 while (!PeekMessageW( msg, hwnd, first, last, PM_REMOVE | PM_NOYIELD | (mask << 16) ))
2958 {
2959 DWORD dwlc;
2960
2961 ReleaseThunkLock( &dwlc );
2962 USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue, INFINITE, mask, 0 );
2963 if (dwlc) RestoreThunkLock( dwlc );
2964 }
2965
2966 return (msg->message != WM_QUIT);
2967 }
2968
2969
2970 /***********************************************************************
2971 * GetMessageA (USER32.@)
2972 */
2973 BOOL WINAPI GetMessageA( MSG *msg, HWND hwnd, UINT first, UINT last )
2974 {
2975 if (get_pending_wmchar( msg, first, last, TRUE )) return TRUE;
2976 GetMessageW( msg, hwnd, first, last );
2977 map_wparam_WtoA( msg, TRUE );
2978 return (msg->message != WM_QUIT);
2979 }
2980
2981
2982 /***********************************************************************
2983 * IsDialogMessageA (USER32.@)
2984 * IsDialogMessage (USER32.@)
2985 */
2986 BOOL WINAPI IsDialogMessageA( HWND hwndDlg, LPMSG pmsg )
2987 {
2988 MSG msg = *pmsg;
2989 map_wparam_AtoW( msg.message, &msg.wParam, WMCHAR_MAP_NOMAPPING );
2990 return IsDialogMessageW( hwndDlg, &msg );
2991 }
2992
2993
2994 /***********************************************************************
2995 * TranslateMessage (USER32.@)
2996 *
2997 * Implementation of TranslateMessage.
2998 *
2999 * TranslateMessage translates virtual-key messages into character-messages,
3000 * as follows :
3001 * WM_KEYDOWN/WM_KEYUP combinations produce a WM_CHAR or WM_DEADCHAR message.
3002 * ditto replacing WM_* with WM_SYS*
3003 * This produces WM_CHAR messages only for keys mapped to ASCII characters
3004 * by the keyboard driver.
3005 *
3006 * If the message is WM_KEYDOWN, WM_KEYUP, WM_SYSKEYDOWN, or WM_SYSKEYUP, the
3007 * return value is nonzero, regardless of the translation.
3008 *
3009 */
3010 BOOL WINAPI TranslateMessage( const MSG *msg )
3011 {
3012 UINT message;
3013 WCHAR wp[2];
3014 BYTE state[256];
3015
3016 if (msg->message < WM_KEYFIRST || msg->message > WM_KEYLAST) return FALSE;
3017 if (msg->message != WM_KEYDOWN && msg->message != WM_SYSKEYDOWN) return TRUE;
3018
3019 TRACE_(key)("Translating key %s (%04lx), scancode %02x\n",
3020 SPY_GetVKeyName(msg->wParam), msg->wParam, LOBYTE(HIWORD(msg->lParam)));
3021
3022 if ( msg->wParam == VK_PROCESSKEY )
3023 return ImmTranslateMessage(msg->hwnd, msg->message, msg->wParam, msg->lParam);
3024
3025 GetKeyboardState( state );
3026 /* FIXME : should handle ToUnicode yielding 2 */
3027 switch (ToUnicode(msg->wParam, HIWORD(msg->lParam), state, wp, 2, 0))
3028 {
3029 case 1:
3030 message = (msg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
3031 TRACE_(key)("1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
3032 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
3033 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
3034 break;
3035
3036 case -1:
3037 message = (msg->message == WM_KEYDOWN) ? WM_DEADCHAR : WM_SYSDEADCHAR;
3038 TRACE_(key)("-1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
3039 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
3040 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
3041 break;
3042 }
3043 return TRUE;
3044 }
3045
3046
3047 /***********************************************************************
3048 * DispatchMessageA (USER32.@)
3049 *
3050 * See DispatchMessageW.
3051 */
3052 LRESULT WINAPI DispatchMessageA( const MSG* msg )
3053 {
3054 LRESULT retval;
3055
3056 /* Process timer messages */
3057 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
3058 {
3059 if (msg->lParam) return CallWindowProcA( (WNDPROC)msg->lParam, msg->hwnd,
3060 msg->message, msg->wParam, GetTickCount() );
3061 }
3062 if (!msg->hwnd) return 0;
3063
3064 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
3065 msg->wParam, msg->lParam );
3066
3067 if (!WINPROC_call_window( msg->hwnd, msg->message, msg->wParam, msg->lParam,
3068 &retval, FALSE, WMCHAR_MAP_DISPATCHMESSAGE ))
3069 {
3070 if (!IsWindow( msg->hwnd )) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
3071 else SetLastError( ERROR_MESSAGE_SYNC_ONLY );
3072 retval = 0;
3073 }
3074
3075 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
3076 msg->wParam, msg->lParam );
3077
3078 if (msg->message == WM_PAINT)
3079 {
3080 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
3081 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
3082 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
3083 DeleteObject( hrgn );
3084 }
3085 return retval;
3086 }
3087
3088
3089 /***********************************************************************
3090 * DispatchMessageW (USER32.@) Process a message
3091 *
3092 * Process the message specified in the structure *_msg_.
3093 *
3094 * If the lpMsg parameter points to a WM_TIMER message and the
3095 * parameter of the WM_TIMER message is not NULL, the lParam parameter
3096 * points to the function that is called instead of the window
3097 * procedure.
3098 *
3099 * The message must be valid.
3100 *
3101 * RETURNS
3102 *
3103 * DispatchMessage() returns the result of the window procedure invoked.
3104 *
3105 * CONFORMANCE
3106 *
3107 * ECMA-234, Win32
3108 *
3109 */
3110 LRESULT WINAPI DispatchMessageW( const MSG* msg )
3111 {
3112 LRESULT retval;
3113
3114 /* Process timer messages */
3115 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
3116 {
3117 if (msg->lParam) return CallWindowProcW( (WNDPROC)msg->lParam, msg->hwnd,
3118 msg->message, msg->wParam, GetTickCount() );
3119 }
3120 if (!msg->hwnd) return 0;
3121
3122 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
3123 msg->wParam, msg->lParam );
3124
3125 if (!WINPROC_call_window( msg->hwnd, msg->message, msg->wParam, msg->lParam,
3126 &retval, TRUE, WMCHAR_MAP_DISPATCHMESSAGE ))
3127 {
3128 if (!IsWindow( msg->hwnd )) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
3129 else SetLastError( ERROR_MESSAGE_SYNC_ONLY );
3130 retval = 0;
3131 }
3132
3133 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
3134 msg->wParam, msg->lParam );
3135
3136 if (msg->message == WM_PAINT)
3137 {
3138 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
3139 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
3140 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
3141 DeleteObject( hrgn );
3142 }
3143 return retval;
3144 }
3145
3146
3147 /***********************************************************************
3148 * GetMessagePos (USER.119)
3149 * GetMessagePos (USER32.@)
3150 *
3151 * The GetMessagePos() function returns a long value representing a
3152 * cursor position, in screen coordinates, when the last message
3153 * retrieved by the GetMessage() function occurs. The x-coordinate is
3154 * in the low-order word of the return value, the y-coordinate is in
3155 * the high-order word. The application can use the MAKEPOINT()
3156 * macro to obtain a POINT structure from the return value.
3157 *
3158 * For the current cursor position, use GetCursorPos().
3159 *
3160 * RETURNS
3161 *
3162 * Cursor position of last message on success, zero on failure.
3163 *
3164 * CONFORMANCE
3165 *
3166 * ECMA-234, Win32
3167 *
3168 */
3169 DWORD WINAPI GetMessagePos(void)
3170 {
3171 return get_user_thread_info()->GetMessagePosVal;
3172 }
3173
3174
3175 /***********************************************************************
3176 * GetMessageTime (USER.120)
3177 * GetMessageTime (USER32.@)
3178 *
3179 * GetMessageTime() returns the message time for the last message
3180 * retrieved by the function. The time is measured in milliseconds with
3181 * the same offset as GetTickCount().
3182 *
3183 * Since the tick count wraps, this is only useful for moderately short
3184 * relative time comparisons.
3185 *
3186 * RETURNS
3187 *
3188 * Time of last message on success, zero on failure.
3189 */
3190 LONG WINAPI GetMessageTime(void)
3191 {
3192 return get_user_thread_info()->GetMessageTimeVal;
3193 }
3194
3195
3196 /***********************************************************************
3197 * GetMessageExtraInfo (USER.288)
3198 * GetMessageExtraInfo (USER32.@)
3199 */
3200 LPARAM WINAPI GetMessageExtraInfo(void)
3201 {
3202 return get_user_thread_info()->GetMessageExtraInfoVal;
3203 }
3204
3205
3206 /***********************************************************************
3207 * SetMessageExtraInfo (USER32.@)
3208 */
3209 LPARAM WINAPI SetMessageExtraInfo(LPARAM lParam)
3210 {
3211 struct user_thread_info *thread_info = get_user_thread_info();
3212 LONG old_value = thread_info->GetMessageExtraInfoVal;
3213 thread_info->GetMessageExtraInfoVal = lParam;
3214 return old_value;
3215 }
3216
3217
3218 /***********************************************************************
3219 * WaitMessage (USER.112) Suspend thread pending messages
3220 * WaitMessage (USER32.@) Suspend thread pending messages
3221 *
3222 * WaitMessage() suspends a thread until events appear in the thread's
3223 * queue.
3224 */
3225 BOOL WINAPI WaitMessage(void)
3226 {
3227 return (MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, QS_ALLINPUT, 0 ) != WAIT_FAILED);
3228 }
3229
3230
3231 /***********************************************************************
3232 * MsgWaitForMultipleObjectsEx (USER32.@)
3233 */
3234 DWORD WINAPI MsgWaitForMultipleObjectsEx( DWORD count, CONST HANDLE *pHandles,
3235 DWORD timeout, DWORD mask, DWORD flags )
3236 {
3237 HANDLE handles[MAXIMUM_WAIT_OBJECTS];
3238 DWORD i, ret, lock;
3239
3240 if (count > MAXIMUM_WAIT_OBJECTS-1)
3241 {
3242 SetLastError( ERROR_INVALID_PARAMETER );
3243 return WAIT_FAILED;
3244 }
3245
3246 /* set the queue mask */
3247 SERVER_START_REQ( set_queue_mask )
3248 {
3249 req->wake_mask = (flags & MWMO_INPUTAVAILABLE) ? mask : 0;
3250 req->changed_mask = mask;
3251 req->skip_wait = 0;
3252 wine_server_call( req );
3253 }
3254 SERVER_END_REQ;
3255
3256 /* add the queue to the handle list */
3257 for (i = 0; i < count; i++) handles[i] = pHandles[i];
3258 handles[count] = get_server_queue_handle();
3259
3260 ReleaseThunkLock( &lock );
3261 ret = USER_Driver->pMsgWaitForMultipleObjectsEx( count+1, handles, timeout, mask, flags );
3262 if (lock) RestoreThunkLock( lock );
3263 return ret;
3264 }
3265
3266
3267 /***********************************************************************
3268 * MsgWaitForMultipleObjects (USER32.@)
3269 */
3270 DWORD WINAPI MsgWaitForMultipleObjects( DWORD count, CONST HANDLE *handles,
3271 BOOL wait_all, DWORD timeout, DWORD mask )
3272 {
3273 return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
3274 wait_all ? MWMO_WAITALL : 0 );
3275 }
3276
3277
3278 /***********************************************************************
3279 * WaitForInputIdle (USER32.@)
3280 */
3281 DWORD WINAPI WaitForInputIdle( HANDLE hProcess, DWORD dwTimeOut )
3282 {
3283 DWORD start_time, elapsed, ret;
3284 HANDLE handles[2];
3285
3286 handles[0] = hProcess;
3287 SERVER_START_REQ( get_process_idle_event )
3288 {
3289 req->handle = hProcess;
3290 if (!(ret = wine_server_call_err( req ))) handles[1] = reply->event;
3291 }
3292 SERVER_END_REQ;
3293 if (ret) return WAIT_FAILED; /* error */
3294 if (!handles[1]) return 0; /* no event to wait on */
3295
3296 start_time = GetTickCount();
3297 elapsed = 0;
3298
3299 TRACE("waiting for %p\n", handles[1] );
3300 do
3301 {
3302 ret = MsgWaitForMultipleObjects ( 2, handles, FALSE, dwTimeOut - elapsed, QS_SENDMESSAGE );
3303 switch (ret)
3304 {
3305 case WAIT_OBJECT_0:
3306 return WAIT_FAILED;
3307 case WAIT_OBJECT_0+2:
3308 process_sent_messages();
3309 break;
3310 case WAIT_TIMEOUT:
3311 case WAIT_FAILED:
3312 TRACE("timeout or error\n");
3313 return ret;
3314 default:
3315 TRACE("finished\n");
3316 return 0;
3317 }
3318 if (dwTimeOut != INFINITE)
3319 {
3320 elapsed = GetTickCount() - start_time;
3321 if (elapsed > dwTimeOut)
3322 break;
3323 }
3324 }
3325 while (1);
3326
3327 return WAIT_TIMEOUT;
3328 }
3329
3330
3331 /***********************************************************************
3332 * UserYield (USER.332)
3333 */
3334 void WINAPI UserYield16(void)
3335 {
3336 DWORD count;
3337
3338 /* Handle sent messages */
3339 process_sent_messages();
3340
3341 /* Yield */
3342 ReleaseThunkLock(&count);
3343
3344 if (count)
3345 {
3346 RestoreThunkLock(count);
3347 /* Handle sent messages again */
3348 process_sent_messages();
3349 }
3350 }
3351
3352
3353 /***********************************************************************
3354 * RegisterWindowMessageA (USER32.@)
3355 * RegisterWindowMessage (USER.118)
3356 */
3357 UINT WINAPI RegisterWindowMessageA( LPCSTR str )
3358 {
3359 UINT ret = GlobalAddAtomA(str);
3360 TRACE("%s, ret=%x\n", str, ret);
3361 return ret;
3362 }
3363
3364
3365 /***********************************************************************
3366 * RegisterWindowMessageW (USER32.@)
3367 */
3368 UINT WINAPI RegisterWindowMessageW( LPCWSTR str )
3369 {
3370 UINT ret = GlobalAddAtomW(str);
3371 TRACE("%s ret=%x\n", debugstr_w(str), ret);
3372 return ret;
3373 }
3374
3375 typedef struct BroadcastParm
3376 {
3377 DWORD flags;
3378 LPDWORD recipients;
3379 UINT msg;
3380 WPARAM wp;
3381 LPARAM lp;
3382 DWORD success;
3383 HWINSTA winsta;
3384 } BroadcastParm;
3385
3386 static BOOL CALLBACK bcast_childwindow( HWND hw, LPARAM lp )
3387 {
3388 BroadcastParm *parm = (BroadcastParm*)lp;
3389 DWORD_PTR retval = 0;
3390 LRESULT lresult;
3391
3392 if (parm->flags & BSF_IGNORECURRENTTASK && WIN_IsCurrentProcess(hw))
3393 {
3394 TRACE("Not telling myself %p\n", hw);
3395 return TRUE;
3396 }
3397
3398 /* I don't know 100% for sure if this is what Windows does, but it fits the tests */
3399 if (parm->flags & BSF_QUERY)
3400 {
3401 TRACE("Telling window %p using SendMessageTimeout\n", hw);
3402
3403 /* Not tested for conflicting flags */
3404 if (parm->flags & BSF_FORCEIFHUNG || parm->flags & BSF_NOHANG)
3405 lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_ABORTIFHUNG, 2000, &retval );
3406 else if (parm->flags & BSF_NOTIMEOUTIFNOTHUNG)
3407 lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_NOTIMEOUTIFNOTHUNG, 2000, &retval );
3408 else
3409 lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_NORMAL, 2000, &retval );
3410
3411 if (!lresult && GetLastError() == ERROR_TIMEOUT)
3412 {
3413 WARN("Timed out!\n");
3414 if (!(parm->flags & BSF_FORCEIFHUNG))
3415 goto fail;
3416 }
3417 if (retval == BROADCAST_QUERY_DENY)
3418 goto fail;
3419
3420 return TRUE;
3421
3422 fail:
3423 parm->success = 0;
3424 return FALSE;
3425 }
3426 else if (parm->flags & BSF_POSTMESSAGE)
3427 {
3428 TRACE("Telling window %p using PostMessage\n", hw);
3429 PostMessageW( hw, parm->msg, parm->wp, parm->lp );
3430 }
3431 else
3432 {
3433 TRACE("Telling window %p using SendNotifyMessage\n", hw);
3434 SendNotifyMessageW( hw, parm->msg, parm->wp, parm->lp );
3435 }
3436
3437 return TRUE;
3438 }
3439
3440 static BOOL CALLBACK bcast_desktop( LPWSTR desktop, LPARAM lp )
3441 {
3442 BOOL ret;
3443 HDESK hdesktop;
3444 BroadcastParm *parm = (BroadcastParm*)lp;
3445
3446 TRACE("desktop: %s\n", debugstr_w( desktop ));
3447
3448 hdesktop = open_winstation_desktop( parm->winsta, desktop, 0, FALSE, DESKTOP_ENUMERATE|DESKTOP_WRITEOBJECTS|STANDARD_RIGHTS_WRITE );
3449 if (!hdesktop)
3450 {
3451 FIXME("Could not open desktop %s\n", debugstr_w(desktop));
3452 return TRUE;
3453 }
3454
3455 ret = EnumDesktopWindows( hdesktop, bcast_childwindow, lp );
3456 CloseDesktop(hdesktop);
3457 TRACE("-->%d\n", ret);
3458 return parm->success;
3459 }
3460
3461 static BOOL CALLBACK bcast_winsta( LPWSTR winsta, LPARAM lp )
3462 {
3463 BOOL ret;
3464 HWINSTA hwinsta = OpenWindowStationW( winsta, FALSE, WINSTA_ENUMDESKTOPS );
3465 TRACE("hwinsta: %p/%s/%08x\n", hwinsta, debugstr_w( winsta ), GetLastError());
3466 if (!hwinsta)
3467 return TRUE;
3468 ((BroadcastParm *)lp)->winsta = hwinsta;
3469 ret = EnumDesktopsW( hwinsta, bcast_desktop, lp );
3470 CloseWindowStation( hwinsta );
3471 TRACE("-->%d\n", ret);
3472 return ret;
3473 }
3474
3475 /***********************************************************************
3476 * BroadcastSystemMessageA (USER32.@)
3477 * BroadcastSystemMessage (USER32.@)
3478 */
3479 LONG WINAPI BroadcastSystemMessageA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3480 {
3481 return BroadcastSystemMessageExA( flags, recipients, msg, wp, lp, NULL );
3482 }
3483
3484
3485 /***********************************************************************
3486 * BroadcastSystemMessageW (USER32.@)
3487 */
3488 LONG WINAPI BroadcastSystemMessageW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3489 {
3490 return BroadcastSystemMessageExW( flags, recipients, msg, wp, lp, NULL );
3491 }
3492
3493 /***********************************************************************
3494 * BroadcastSystemMessageExA (USER32.@)
3495 */
3496 LONG WINAPI BroadcastSystemMessageExA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp, PBSMINFO pinfo )
3497 {
3498 map_wparam_AtoW( msg, &wp, WMCHAR_MAP_NOMAPPING );
3499 return BroadcastSystemMessageExW( flags, recipients, msg, wp, lp, NULL );
3500 }
3501
3502
3503 /***********************************************************************
3504 * BroadcastSystemMessageExW (USER32.@)
3505 */
3506 LONG WINAPI BroadcastSystemMessageExW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp, PBSMINFO pinfo )
3507 {
3508 BroadcastParm parm;
3509 DWORD recips = BSM_ALLCOMPONENTS;
3510 BOOL ret = TRUE;
3511 static const DWORD all_flags = ( BSF_QUERY | BSF_IGNORECURRENTTASK | BSF_FLUSHDISK | BSF_NOHANG
3512 | BSF_POSTMESSAGE | BSF_FORCEIFHUNG | BSF_NOTIMEOUTIFNOTHUNG
3513 | BSF_ALLOWSFW | BSF_SENDNOTIFYMESSAGE | BSF_RETURNHDESK | BSF_LUID );
3514
3515 TRACE("Flags: %08x, recipients: %p(0x%x), msg: %04x, wparam: %08lx, lparam: %08lx\n", flags, recipients,
3516 (recipients ? *recipients : recips), msg, wp, lp);
3517
3518 if (flags & ~all_flags)
3519 {
3520 SetLastError(ERROR_INVALID_PARAMETER);
3521 return 0;
3522 }
3523
3524 if (!recipients)
3525 recipients = &recips;
3526
3527 if ( pinfo && flags & BSF_QUERY )
3528 FIXME("Not returning PBSMINFO information yet\n");
3529
3530 parm.flags = flags;
3531 parm.recipients = recipients;
3532 parm.msg = msg;
3533 parm.wp = wp;
3534 parm.lp = lp;
3535 parm.success = TRUE;
3536
3537 if (*recipients & BSM_ALLDESKTOPS || *recipients == BSM_ALLCOMPONENTS)
3538 ret = EnumWindowStationsW(bcast_winsta, (LONG_PTR)&parm);
3539 else if (*recipients & BSM_APPLICATIONS)
3540 {
3541 EnumWindows(bcast_childwindow, (LONG_PTR)&parm);
3542 ret = parm.success;
3543 }
3544 else
3545 FIXME("Recipients %08x not supported!\n", *recipients);
3546
3547 return ret;
3548 }
3549
3550 /***********************************************************************
3551 * SetMessageQueue (USER32.@)
3552 */
3553 BOOL WINAPI SetMessageQueue( INT size )
3554 {
3555 /* now obsolete the message queue will be expanded dynamically as necessary */
3556 return TRUE;
3557 }
3558
3559
3560 /***********************************************************************
3561 * MessageBeep (USER32.@)
3562 */
3563 BOOL WINAPI MessageBeep( UINT i )
3564 {
3565 BOOL active = TRUE;
3566 SystemParametersInfoA( SPI_GETBEEP, 0, &active, FALSE );
3567 if (active) USER_Driver->pBeep();
3568 return TRUE;
3569 }
3570
3571
3572 /***********************************************************************
3573 * SetTimer (USER32.@)
3574 */
3575 UINT_PTR WINAPI SetTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3576 {
3577 UINT_PTR ret;
3578 WNDPROC winproc = 0;
3579
3580 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, NULL );
3581
3582 SERVER_START_REQ( set_win_timer )
3583 {
3584 req->win = hwnd;
3585 req->msg = WM_TIMER;
3586 req->id = id;
3587 req->rate = max( timeout, SYS_TIMER_RATE );
3588 req->lparam = (unsigned long)winproc;
3589 if (!wine_server_call_err( req ))
3590 {
3591 ret = reply->id;
3592 if (!ret) ret = TRUE;
3593 }
3594 else ret = 0;
3595 }
3596 SERVER_END_REQ;
3597
3598 TRACE("Added %p %lx %p timeout %d\n", hwnd, id, winproc, timeout );
3599 return ret;
3600 }
3601
3602
3603 /***********************************************************************
3604 * SetSystemTimer (USER32.@)
3605 */
3606 UINT_PTR WINAPI SetSystemTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3607 {
3608 UINT_PTR ret;
3609 WNDPROC winproc = 0;
3610
3611 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, NULL );
3612
3613 SERVER_START_REQ( set_win_timer )
3614 {
3615 req->win = hwnd;
3616 req->msg = WM_SYSTIMER;
3617 req->id = id;
3618 req->rate = max( timeout, SYS_TIMER_RATE );
3619 req->lparam = (unsigned long)winproc;
3620 if (!wine_server_call_err( req ))
3621 {
3622 ret = reply->id;
3623 if (!ret) ret = TRUE;
3624 }
3625 else ret = 0;
3626 }
3627 SERVER_END_REQ;
3628
3629 TRACE("Added %p %lx %p timeout %d\n", hwnd, id, winproc, timeout );
3630 return ret;
3631 }
3632
3633
3634 /***********************************************************************
3635 * KillTimer (USER32.@)
3636 */
3637 BOOL WINAPI KillTimer( HWND hwnd, UINT_PTR id )
3638 {
3639 BOOL ret;
3640
3641 SERVER_START_REQ( kill_win_timer )
3642 {
3643 req->win = hwnd;
3644 req->msg = WM_TIMER;
3645 req->id = id;
3646 ret = !wine_server_call_err( req );
3647 }
3648 SERVER_END_REQ;
3649 return ret;
3650 }
3651
3652
3653 /***********************************************************************
3654 * KillSystemTimer (USER32.@)
3655 */
3656 BOOL WINAPI KillSystemTimer( HWND hwnd, UINT_PTR id )
3657 {
3658 BOOL ret;
3659
3660 SERVER_START_REQ( kill_win_timer )
3661 {
3662 req->win = hwnd;
3663 req->msg = WM_SYSTIMER;
3664 req->id = id;
3665 ret = !wine_server_call_err( req );
3666 }
3667 SERVER_END_REQ;
3668 return ret;
3669 }
3670
3671
3672 /**********************************************************************
3673 * GetGUIThreadInfo (USER32.@)
3674 */
3675 BOOL WINAPI GetGUIThreadInfo( DWORD id, GUITHREADINFO *info )
3676 {
3677 BOOL ret;
3678
3679 SERVER_START_REQ( get_thread_input )
3680 {
3681 req->tid = id;
3682 if ((ret = !wine_server_call_err( req )))
3683 {
3684 info->flags = 0;
3685 info->hwndActive = reply->active;
3686 info->hwndFocus = reply->focus;
3687 info->hwndCapture = reply->capture;
3688 info->hwndMenuOwner = reply->menu_owner;
3689 info->hwndMoveSize = reply->move_size;
3690 info->hwndCaret = reply->caret;
3691 info->rcCaret.left = reply->rect.left;
3692 info->rcCaret.top = reply->rect.top;
3693 info->rcCaret.right = reply->rect.right;
3694 info->rcCaret.bottom = reply->rect.bottom;
3695 if (reply->menu_owner) info->flags |= GUI_INMENUMODE;
3696 if (reply->move_size) info->flags |= GUI_INMOVESIZE;
3697 if (reply->caret) info->flags |= GUI_CARETBLINKING;
3698 }
3699 }
3700 SERVER_END_REQ;
3701 return ret;
3702 }
3703
3704
3705 /******************************************************************
3706 * IsHungAppWindow (USER32.@)
3707 *
3708 */
3709 BOOL WINAPI IsHungAppWindow( HWND hWnd )
3710 {
3711 BOOL ret;
3712
3713 SERVER_START_REQ( is_window_hung )
3714 {
3715 req->win = hWnd;
3716 ret = !wine_server_call_err( req ) && reply->is_hung;
3717 }
3718 SERVER_END_REQ;
3719 return ret;
3720 }