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Add support for impersonating a token.
[wine/multimedia.git] / dlls / user / message.c
blob2cf72bfdb37503fc0adac1bbcedd68440a1ec6b2
1 /*
2 * Window messaging support
3 *
4 * Copyright 2001 Alexandre Julliard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #include "config.h"
22 #include "wine/port.h"
23
24 #include <assert.h>
25 #include <stdarg.h>
26
27 #include "ntstatus.h"
28 #include "windef.h"
29 #include "winbase.h"
30 #include "wingdi.h"
31 #include "winuser.h"
32 #include "winerror.h"
33 #include "winnls.h"
34 #include "dde.h"
35 #include "wine/unicode.h"
36 #include "wine/server.h"
37 #include "user_private.h"
38 #include "win.h"
39 #include "winpos.h"
40 #include "controls.h"
41 #include "winproc.h"
42 #include "wine/debug.h"
43
44 WINE_DEFAULT_DEBUG_CHANNEL(msg);
45 WINE_DECLARE_DEBUG_CHANNEL(relay);
46 WINE_DECLARE_DEBUG_CHANNEL(key);
47
48 #define WM_NCMOUSEFIRST WM_NCMOUSEMOVE
49 #define WM_NCMOUSELAST (WM_NCMOUSEFIRST+(WM_MOUSELAST-WM_MOUSEFIRST))
50
51 #define MAX_PACK_COUNT 4
52 #define MAX_SENDMSG_RECURSION 64
53
54 #define SYS_TIMER_RATE 55 /* min. timer rate in ms (actually 54.925)*/
55
56 /* description of the data fields that need to be packed along with a sent message */
57 struct packed_message
58 {
59 int count;
60 const void *data[MAX_PACK_COUNT];
61 size_t size[MAX_PACK_COUNT];
62 };
63
64 /* info about the message currently being received by the current thread */
65 struct received_message_info
66 {
67 enum message_type type;
68 MSG msg;
69 UINT flags; /* InSendMessageEx return flags */
70 HWINEVENTHOOK hook; /* winevent hook handle */
71 WINEVENTPROC hook_proc; /* winevent hook proc address */
72 };
73
74 /* structure to group all parameters for sent messages of the various kinds */
75 struct send_message_info
76 {
77 enum message_type type;
78 HWND hwnd;
79 UINT msg;
80 WPARAM wparam;
81 LPARAM lparam;
82 UINT flags; /* flags for SendMessageTimeout */
83 UINT timeout; /* timeout for SendMessageTimeout */
84 SENDASYNCPROC callback; /* callback function for SendMessageCallback */
85 ULONG_PTR data; /* callback data */
86 };
87
88
89 /* flag for messages that contain pointers */
90 /* 32 messages per entry, messages 0..31 map to bits 0..31 */
91
92 #define SET(msg) (1 << ((msg) & 31))
93
94 static const unsigned int message_pointer_flags[] =
95 {
96 /* 0x00 - 0x1f */
97 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) |
98 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
99 /* 0x20 - 0x3f */
100 SET(WM_GETMINMAXINFO) | SET(WM_DRAWITEM) | SET(WM_MEASUREITEM) | SET(WM_DELETEITEM) |
101 SET(WM_COMPAREITEM),
102 /* 0x40 - 0x5f */
103 SET(WM_WINDOWPOSCHANGING) | SET(WM_WINDOWPOSCHANGED) | SET(WM_COPYDATA) |
104 SET(WM_NOTIFY) | SET(WM_HELP),
105 /* 0x60 - 0x7f */
106 SET(WM_STYLECHANGING) | SET(WM_STYLECHANGED),
107 /* 0x80 - 0x9f */
108 SET(WM_NCCREATE) | SET(WM_NCCALCSIZE) | SET(WM_GETDLGCODE),
109 /* 0xa0 - 0xbf */
110 SET(EM_GETSEL) | SET(EM_GETRECT) | SET(EM_SETRECT) | SET(EM_SETRECTNP),
111 /* 0xc0 - 0xdf */
112 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETTABSTOPS),
113 /* 0xe0 - 0xff */
114 SET(SBM_GETRANGE) | SET(SBM_SETSCROLLINFO) | SET(SBM_GETSCROLLINFO) | SET(SBM_GETSCROLLBARINFO),
115 /* 0x100 - 0x11f */
116 0,
117 /* 0x120 - 0x13f */
118 0,
119 /* 0x140 - 0x15f */
120 SET(CB_GETEDITSEL) | SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) |
121 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) |
122 SET(CB_GETDROPPEDCONTROLRECT) | SET(CB_FINDSTRINGEXACT),
123 /* 0x160 - 0x17f */
124 0,
125 /* 0x180 - 0x19f */
126 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_SELECTSTRING) |
127 SET(LB_DIR) | SET(LB_FINDSTRING) |
128 SET(LB_GETSELITEMS) | SET(LB_SETTABSTOPS) | SET(LB_ADDFILE) | SET(LB_GETITEMRECT),
129 /* 0x1a0 - 0x1bf */
130 SET(LB_FINDSTRINGEXACT),
131 /* 0x1c0 - 0x1df */
132 0,
133 /* 0x1e0 - 0x1ff */
134 0,
135 /* 0x200 - 0x21f */
136 SET(WM_NEXTMENU) | SET(WM_SIZING) | SET(WM_MOVING) | SET(WM_DEVICECHANGE),
137 /* 0x220 - 0x23f */
138 SET(WM_MDICREATE) | SET(WM_MDIGETACTIVE) | SET(WM_DROPOBJECT) |
139 SET(WM_QUERYDROPOBJECT) | SET(WM_DRAGLOOP) | SET(WM_DRAGSELECT) | SET(WM_DRAGMOVE),
140 /* 0x240 - 0x25f */
141 0,
142 /* 0x260 - 0x27f */
143 0,
144 /* 0x280 - 0x29f */
145 0,
146 /* 0x2a0 - 0x2bf */
147 0,
148 /* 0x2c0 - 0x2df */
149 0,
150 /* 0x2e0 - 0x2ff */
151 0,
152 /* 0x300 - 0x31f */
153 SET(WM_ASKCBFORMATNAME)
154 };
155
156 /* flags for messages that contain Unicode strings */
157 static const unsigned int message_unicode_flags[] =
158 {
159 /* 0x00 - 0x1f */
160 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) | SET(WM_GETTEXTLENGTH) |
161 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
162 /* 0x20 - 0x3f */
163 SET(WM_CHARTOITEM),
164 /* 0x40 - 0x5f */
165 0,
166 /* 0x60 - 0x7f */
167 0,
168 /* 0x80 - 0x9f */
169 SET(WM_NCCREATE),
170 /* 0xa0 - 0xbf */
171 0,
172 /* 0xc0 - 0xdf */
173 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETPASSWORDCHAR),
174 /* 0xe0 - 0xff */
175 0,
176 /* 0x100 - 0x11f */
177 SET(WM_CHAR) | SET(WM_DEADCHAR) | SET(WM_SYSCHAR) | SET(WM_SYSDEADCHAR),
178 /* 0x120 - 0x13f */
179 SET(WM_MENUCHAR),
180 /* 0x140 - 0x15f */
181 SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) | SET(CB_GETLBTEXTLEN) |
182 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) | SET(CB_FINDSTRINGEXACT),
183 /* 0x160 - 0x17f */
184 0,
185 /* 0x180 - 0x19f */
186 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_GETTEXTLEN) |
187 SET(LB_SELECTSTRING) | SET(LB_DIR) | SET(LB_FINDSTRING) | SET(LB_ADDFILE),
188 /* 0x1a0 - 0x1bf */
189 SET(LB_FINDSTRINGEXACT),
190 /* 0x1c0 - 0x1df */
191 0,
192 /* 0x1e0 - 0x1ff */
193 0,
194 /* 0x200 - 0x21f */
195 0,
196 /* 0x220 - 0x23f */
197 SET(WM_MDICREATE),
198 /* 0x240 - 0x25f */
199 0,
200 /* 0x260 - 0x27f */
201 0,
202 /* 0x280 - 0x29f */
203 SET(WM_IME_CHAR),
204 /* 0x2a0 - 0x2bf */
205 0,
206 /* 0x2c0 - 0x2df */
207 0,
208 /* 0x2e0 - 0x2ff */
209 0,
210 /* 0x300 - 0x31f */
211 SET(WM_PAINTCLIPBOARD) | SET(WM_SIZECLIPBOARD) | SET(WM_ASKCBFORMATNAME)
212 };
213
214 /* check whether a given message type includes pointers */
215 inline static int is_pointer_message( UINT message )
216 {
217 if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
218 return (message_pointer_flags[message / 32] & SET(message)) != 0;
219 }
220
221 /* check whether a given message type contains Unicode (or ASCII) chars */
222 inline static int is_unicode_message( UINT message )
223 {
224 if (message >= 8*sizeof(message_unicode_flags)) return FALSE;
225 return (message_unicode_flags[message / 32] & SET(message)) != 0;
226 }
227
228 #undef SET
229
230 /* add a data field to a packed message */
231 inline static void push_data( struct packed_message *data, const void *ptr, size_t size )
232 {
233 data->data[data->count] = ptr;
234 data->size[data->count] = size;
235 data->count++;
236 }
237
238 /* add a string to a packed message */
239 inline static void push_string( struct packed_message *data, LPCWSTR str )
240 {
241 push_data( data, str, (strlenW(str) + 1) * sizeof(WCHAR) );
242 }
243
244 /* retrieve a pointer to data from a packed message and increment the buffer pointer */
245 inline static void *get_data( void **buffer, size_t size )
246 {
247 void *ret = *buffer;
248 *buffer = (char *)*buffer + size;
249 return ret;
250 }
251
252 /* make sure that the buffer contains a valid null-terminated Unicode string */
253 inline static BOOL check_string( LPCWSTR str, size_t size )
254 {
255 for (size /= sizeof(WCHAR); size; size--, str++)
256 if (!*str) return TRUE;
257 return FALSE;
258 }
259
260 /* make sure that there is space for 'size' bytes in buffer, growing it if needed */
261 inline static void *get_buffer_space( void **buffer, size_t size )
262 {
263 void *ret;
264
265 if (*buffer)
266 {
267 if (!(ret = HeapReAlloc( GetProcessHeap(), 0, *buffer, size )))
268 HeapFree( GetProcessHeap(), 0, *buffer );
269 }
270 else ret = HeapAlloc( GetProcessHeap(), 0, size );
271
272 *buffer = ret;
273 return ret;
274 }
275
276 /* retrieve a string pointer from packed data */
277 inline static LPWSTR get_string( void **buffer )
278 {
279 return get_data( buffer, (strlenW( (LPWSTR)*buffer ) + 1) * sizeof(WCHAR) );
280 }
281
282 /* check whether a combobox expects strings or ids in CB_ADDSTRING/CB_INSERTSTRING */
283 inline static BOOL combobox_has_strings( HWND hwnd )
284 {
285 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
286 return (!(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) || (style & CBS_HASSTRINGS));
287 }
288
289 /* check whether a listbox expects strings or ids in LB_ADDSTRING/LB_INSERTSTRING */
290 inline static BOOL listbox_has_strings( HWND hwnd )
291 {
292 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
293 return (!(style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE)) || (style & LBS_HASSTRINGS));
294 }
295
296 /* check whether message is in the range of keyboard messages */
297 inline static BOOL is_keyboard_message( UINT message )
298 {
299 return (message >= WM_KEYFIRST && message <= WM_KEYLAST);
300 }
301
302 /* check whether message is in the range of mouse messages */
303 inline static BOOL is_mouse_message( UINT message )
304 {
305 return ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) ||
306 (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST));
307 }
308
309 /* check whether message matches the specified hwnd filter */
310 inline static BOOL check_hwnd_filter( const MSG *msg, HWND hwnd_filter )
311 {
312 if (!hwnd_filter) return TRUE;
313 return (msg->hwnd == hwnd_filter || IsChild( hwnd_filter, msg->hwnd ));
314 }
315
316
317 /***********************************************************************
318 * broadcast_message_callback
319 *
320 * Helper callback for broadcasting messages.
321 */
322 static BOOL CALLBACK broadcast_message_callback( HWND hwnd, LPARAM lparam )
323 {
324 struct send_message_info *info = (struct send_message_info *)lparam;
325 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & (WS_POPUP|WS_CAPTION))) return TRUE;
326 switch(info->type)
327 {
328 case MSG_UNICODE:
329 SendMessageTimeoutW( hwnd, info->msg, info->wparam, info->lparam,
330 info->flags, info->timeout, NULL );
331 break;
332 case MSG_ASCII:
333 SendMessageTimeoutA( hwnd, info->msg, info->wparam, info->lparam,
334 info->flags, info->timeout, NULL );
335 break;
336 case MSG_NOTIFY:
337 SendNotifyMessageW( hwnd, info->msg, info->wparam, info->lparam );
338 break;
339 case MSG_CALLBACK:
340 SendMessageCallbackW( hwnd, info->msg, info->wparam, info->lparam,
341 info->callback, info->data );
342 break;
343 case MSG_POSTED:
344 PostMessageW( hwnd, info->msg, info->wparam, info->lparam );
345 break;
346 default:
347 ERR( "bad type %d\n", info->type );
348 break;
349 }
350 return TRUE;
351 }
352
353
354 /***********************************************************************
355 * map_wparam_AtoW
356 *
357 * Convert the wparam of an ASCII message to Unicode.
358 */
359 static WPARAM map_wparam_AtoW( UINT message, WPARAM wparam )
360 {
361 switch(message)
362 {
363 case WM_CHARTOITEM:
364 case EM_SETPASSWORDCHAR:
365 case WM_CHAR:
366 case WM_DEADCHAR:
367 case WM_SYSCHAR:
368 case WM_SYSDEADCHAR:
369 case WM_MENUCHAR:
370 {
371 char ch = LOWORD(wparam);
372 WCHAR wch;
373 MultiByteToWideChar(CP_ACP, 0, &ch, 1, &wch, 1);
374 wparam = MAKEWPARAM( wch, HIWORD(wparam) );
375 }
376 break;
377 case WM_IME_CHAR:
378 {
379 char ch[2];
380 WCHAR wch;
381 ch[0] = (wparam >> 8);
382 ch[1] = (wparam & 0xff);
383 if (ch[0]) MultiByteToWideChar(CP_ACP, 0, ch, 2, &wch, 1);
384 else MultiByteToWideChar(CP_ACP, 0, &ch[1], 1, &wch, 1);
385 wparam = MAKEWPARAM( wch, HIWORD(wparam) );
386 }
387 break;
388 }
389 return wparam;
390 }
391
392
393 /***********************************************************************
394 * map_wparam_WtoA
395 *
396 * Convert the wparam of a Unicode message to ASCII.
397 */
398 static WPARAM map_wparam_WtoA( UINT message, WPARAM wparam )
399 {
400 switch(message)
401 {
402 case WM_CHARTOITEM:
403 case EM_SETPASSWORDCHAR:
404 case WM_CHAR:
405 case WM_DEADCHAR:
406 case WM_SYSCHAR:
407 case WM_SYSDEADCHAR:
408 case WM_MENUCHAR:
409 {
410 WCHAR wch = LOWORD(wparam);
411 BYTE ch;
412 WideCharToMultiByte( CP_ACP, 0, &wch, 1, &ch, 1, NULL, NULL );
413 wparam = MAKEWPARAM( ch, HIWORD(wparam) );
414 }
415 break;
416 case WM_IME_CHAR:
417 {
418 WCHAR wch = LOWORD(wparam);
419 BYTE ch[2];
420
421 if (WideCharToMultiByte( CP_ACP, 0, &wch, 1, ch, 2, NULL, NULL ) == 2)
422 wparam = MAKEWPARAM( (ch[0] << 8) | ch[1], HIWORD(wparam) );
423 else
424 wparam = MAKEWPARAM( ch[0], HIWORD(wparam) );
425 }
426 break;
427 }
428 return wparam;
429 }
430
431
432 /***********************************************************************
433 * pack_message
434 *
435 * Pack a message for sending to another process.
436 * Return the size of the data we expect in the message reply.
437 * Set data->count to -1 if there is an error.
438 */
439 static size_t pack_message( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
440 struct packed_message *data )
441 {
442 data->count = 0;
443 switch(message)
444 {
445 case WM_NCCREATE:
446 case WM_CREATE:
447 {
448 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
449 push_data( data, cs, sizeof(*cs) );
450 if (HIWORD(cs->lpszName)) push_string( data, cs->lpszName );
451 if (HIWORD(cs->lpszClass)) push_string( data, cs->lpszClass );
452 return sizeof(*cs);
453 }
454 case WM_GETTEXT:
455 case WM_ASKCBFORMATNAME:
456 return wparam * sizeof(WCHAR);
457 case WM_WININICHANGE:
458 if (lparam) push_string(data, (LPWSTR)lparam );
459 return 0;
460 case WM_SETTEXT:
461 case WM_DEVMODECHANGE:
462 case CB_DIR:
463 case LB_DIR:
464 case LB_ADDFILE:
465 case EM_REPLACESEL:
466 push_string( data, (LPWSTR)lparam );
467 return 0;
468 case WM_GETMINMAXINFO:
469 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
470 return sizeof(MINMAXINFO);
471 case WM_DRAWITEM:
472 push_data( data, (DRAWITEMSTRUCT *)lparam, sizeof(DRAWITEMSTRUCT) );
473 return 0;
474 case WM_MEASUREITEM:
475 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
476 return sizeof(MEASUREITEMSTRUCT);
477 case WM_DELETEITEM:
478 push_data( data, (DELETEITEMSTRUCT *)lparam, sizeof(DELETEITEMSTRUCT) );
479 return 0;
480 case WM_COMPAREITEM:
481 push_data( data, (COMPAREITEMSTRUCT *)lparam, sizeof(COMPAREITEMSTRUCT) );
482 return 0;
483 case WM_WINDOWPOSCHANGING:
484 case WM_WINDOWPOSCHANGED:
485 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
486 return sizeof(WINDOWPOS);
487 case WM_COPYDATA:
488 {
489 COPYDATASTRUCT *cp = (COPYDATASTRUCT *)lparam;
490 push_data( data, cp, sizeof(*cp) );
491 if (cp->lpData) push_data( data, cp->lpData, cp->cbData );
492 return 0;
493 }
494 case WM_NOTIFY:
495 /* WM_NOTIFY cannot be sent across processes (MSDN) */
496 data->count = -1;
497 return 0;
498 case WM_HELP:
499 push_data( data, (HELPINFO *)lparam, sizeof(HELPINFO) );
500 return 0;
501 case WM_STYLECHANGING:
502 case WM_STYLECHANGED:
503 push_data( data, (STYLESTRUCT *)lparam, sizeof(STYLESTRUCT) );
504 return 0;
505 case WM_NCCALCSIZE:
506 if (!wparam)
507 {
508 push_data( data, (RECT *)lparam, sizeof(RECT) );
509 return sizeof(RECT);
510 }
511 else
512 {
513 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
514 push_data( data, nc, sizeof(*nc) );
515 push_data( data, nc->lppos, sizeof(*nc->lppos) );
516 return sizeof(*nc) + sizeof(*nc->lppos);
517 }
518 case WM_GETDLGCODE:
519 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
520 return sizeof(MSG);
521 case SBM_SETSCROLLINFO:
522 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
523 return 0;
524 case SBM_GETSCROLLINFO:
525 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
526 return sizeof(SCROLLINFO);
527 case SBM_GETSCROLLBARINFO:
528 {
529 const SCROLLBARINFO *info = (const SCROLLBARINFO *)lparam;
530 size_t size = min( info->cbSize, sizeof(SCROLLBARINFO) );
531 push_data( data, info, size );
532 return size;
533 }
534 case EM_GETSEL:
535 case SBM_GETRANGE:
536 case CB_GETEDITSEL:
537 {
538 size_t size = 0;
539 if (wparam) size += sizeof(DWORD);
540 if (lparam) size += sizeof(DWORD);
541 return size;
542 }
543 case EM_GETRECT:
544 case LB_GETITEMRECT:
545 case CB_GETDROPPEDCONTROLRECT:
546 return sizeof(RECT);
547 case EM_SETRECT:
548 case EM_SETRECTNP:
549 push_data( data, (RECT *)lparam, sizeof(RECT) );
550 return 0;
551 case EM_GETLINE:
552 {
553 WORD *pw = (WORD *)lparam;
554 push_data( data, pw, sizeof(*pw) );
555 return *pw * sizeof(WCHAR);
556 }
557 case EM_SETTABSTOPS:
558 case LB_SETTABSTOPS:
559 if (wparam) push_data( data, (UINT *)lparam, sizeof(UINT) * wparam );
560 return 0;
561 case CB_ADDSTRING:
562 case CB_INSERTSTRING:
563 case CB_FINDSTRING:
564 case CB_FINDSTRINGEXACT:
565 case CB_SELECTSTRING:
566 if (combobox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
567 return 0;
568 case CB_GETLBTEXT:
569 if (!combobox_has_strings( hwnd )) return sizeof(ULONG_PTR);
570 return (SendMessageW( hwnd, CB_GETLBTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
571 case LB_ADDSTRING:
572 case LB_INSERTSTRING:
573 case LB_FINDSTRING:
574 case LB_FINDSTRINGEXACT:
575 case LB_SELECTSTRING:
576 if (listbox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
577 return 0;
578 case LB_GETTEXT:
579 if (!listbox_has_strings( hwnd )) return sizeof(ULONG_PTR);
580 return (SendMessageW( hwnd, LB_GETTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
581 case LB_GETSELITEMS:
582 return wparam * sizeof(UINT);
583 case WM_NEXTMENU:
584 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
585 return sizeof(MDINEXTMENU);
586 case WM_SIZING:
587 case WM_MOVING:
588 push_data( data, (RECT *)lparam, sizeof(RECT) );
589 return sizeof(RECT);
590 case WM_MDICREATE:
591 {
592 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
593 push_data( data, cs, sizeof(*cs) );
594 if (HIWORD(cs->szTitle)) push_string( data, cs->szTitle );
595 if (HIWORD(cs->szClass)) push_string( data, cs->szClass );
596 return sizeof(*cs);
597 }
598 case WM_MDIGETACTIVE:
599 if (lparam) return sizeof(BOOL);
600 return 0;
601 case WM_WINE_SETWINDOWPOS:
602 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
603 return 0;
604 case WM_WINE_KEYBOARD_LL_HOOK:
605 push_data( data, (KBDLLHOOKSTRUCT *)lparam, sizeof(KBDLLHOOKSTRUCT) );
606 return 0;
607 case WM_WINE_MOUSE_LL_HOOK:
608 push_data( data, (MSLLHOOKSTRUCT *)lparam, sizeof(MSLLHOOKSTRUCT) );
609 return 0;
610 case WM_PAINT:
611 if (!wparam) return 0;
612 /* fall through */
613
614 /* these contain an HFONT */
615 case WM_SETFONT:
616 case WM_GETFONT:
617 /* these contain an HDC */
618 case WM_ERASEBKGND:
619 case WM_ICONERASEBKGND:
620 case WM_NCPAINT:
621 case WM_CTLCOLORMSGBOX:
622 case WM_CTLCOLOREDIT:
623 case WM_CTLCOLORLISTBOX:
624 case WM_CTLCOLORBTN:
625 case WM_CTLCOLORDLG:
626 case WM_CTLCOLORSCROLLBAR:
627 case WM_CTLCOLORSTATIC:
628 case WM_PRINT:
629 case WM_PRINTCLIENT:
630 /* these contain an HGLOBAL */
631 case WM_PAINTCLIPBOARD:
632 case WM_SIZECLIPBOARD:
633 /* these contain HICON */
634 case WM_GETICON:
635 case WM_SETICON:
636 case WM_QUERYDRAGICON:
637 case WM_QUERYPARKICON:
638 /* these contain pointers */
639 case WM_DROPOBJECT:
640 case WM_QUERYDROPOBJECT:
641 case WM_DRAGLOOP:
642 case WM_DRAGSELECT:
643 case WM_DRAGMOVE:
644 case WM_DEVICECHANGE:
645 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
646 data->count = -1;
647 return 0;
648 }
649 return 0;
650 }
651
652
653 /***********************************************************************
654 * unpack_message
655 *
656 * Unpack a message received from another process.
657 */
658 static BOOL unpack_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
659 void **buffer, size_t size )
660 {
661 size_t minsize = 0;
662
663 switch(message)
664 {
665 case WM_NCCREATE:
666 case WM_CREATE:
667 {
668 CREATESTRUCTW *cs = *buffer;
669 WCHAR *str = (WCHAR *)(cs + 1);
670 if (size < sizeof(*cs)) return FALSE;
671 size -= sizeof(*cs);
672 if (HIWORD(cs->lpszName))
673 {
674 if (!check_string( str, size )) return FALSE;
675 cs->lpszName = str;
676 size -= (strlenW(str) + 1) * sizeof(WCHAR);
677 str += strlenW(str) + 1;
678 }
679 if (HIWORD(cs->lpszClass))
680 {
681 if (!check_string( str, size )) return FALSE;
682 cs->lpszClass = str;
683 }
684 break;
685 }
686 case WM_GETTEXT:
687 case WM_ASKCBFORMATNAME:
688 if (!get_buffer_space( buffer, (*wparam * sizeof(WCHAR)) )) return FALSE;
689 break;
690 case WM_WININICHANGE:
691 if (!*lparam) return TRUE;
692 /* fall through */
693 case WM_SETTEXT:
694 case WM_DEVMODECHANGE:
695 case CB_DIR:
696 case LB_DIR:
697 case LB_ADDFILE:
698 case EM_REPLACESEL:
699 if (!check_string( *buffer, size )) return FALSE;
700 break;
701 case WM_GETMINMAXINFO:
702 minsize = sizeof(MINMAXINFO);
703 break;
704 case WM_DRAWITEM:
705 minsize = sizeof(DRAWITEMSTRUCT);
706 break;
707 case WM_MEASUREITEM:
708 minsize = sizeof(MEASUREITEMSTRUCT);
709 break;
710 case WM_DELETEITEM:
711 minsize = sizeof(DELETEITEMSTRUCT);
712 break;
713 case WM_COMPAREITEM:
714 minsize = sizeof(COMPAREITEMSTRUCT);
715 break;
716 case WM_WINDOWPOSCHANGING:
717 case WM_WINDOWPOSCHANGED:
718 case WM_WINE_SETWINDOWPOS:
719 minsize = sizeof(WINDOWPOS);
720 break;
721 case WM_COPYDATA:
722 {
723 COPYDATASTRUCT *cp = *buffer;
724 if (size < sizeof(*cp)) return FALSE;
725 if (cp->lpData)
726 {
727 minsize = sizeof(*cp) + cp->cbData;
728 cp->lpData = cp + 1;
729 }
730 break;
731 }
732 case WM_NOTIFY:
733 /* WM_NOTIFY cannot be sent across processes (MSDN) */
734 return FALSE;
735 case WM_HELP:
736 minsize = sizeof(HELPINFO);
737 break;
738 case WM_STYLECHANGING:
739 case WM_STYLECHANGED:
740 minsize = sizeof(STYLESTRUCT);
741 break;
742 case WM_NCCALCSIZE:
743 if (!*wparam) minsize = sizeof(RECT);
744 else
745 {
746 NCCALCSIZE_PARAMS *nc = *buffer;
747 if (size < sizeof(*nc) + sizeof(*nc->lppos)) return FALSE;
748 nc->lppos = (WINDOWPOS *)(nc + 1);
749 }
750 break;
751 case WM_GETDLGCODE:
752 if (!*lparam) return TRUE;
753 minsize = sizeof(MSG);
754 break;
755 case SBM_SETSCROLLINFO:
756 minsize = sizeof(SCROLLINFO);
757 break;
758 case SBM_GETSCROLLINFO:
759 if (!get_buffer_space( buffer, sizeof(SCROLLINFO ))) return FALSE;
760 break;
761 case SBM_GETSCROLLBARINFO:
762 if (!get_buffer_space( buffer, sizeof(SCROLLBARINFO ))) return FALSE;
763 break;
764 case EM_GETSEL:
765 case SBM_GETRANGE:
766 case CB_GETEDITSEL:
767 if (*wparam || *lparam)
768 {
769 if (!get_buffer_space( buffer, 2*sizeof(DWORD) )) return FALSE;
770 if (*wparam) *wparam = (WPARAM)*buffer;
771 if (*lparam) *lparam = (LPARAM)((DWORD *)*buffer + 1);
772 }
773 return TRUE;
774 case EM_GETRECT:
775 case LB_GETITEMRECT:
776 case CB_GETDROPPEDCONTROLRECT:
777 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
778 break;
779 case EM_SETRECT:
780 case EM_SETRECTNP:
781 minsize = sizeof(RECT);
782 break;
783 case EM_GETLINE:
784 {
785 WORD len;
786 if (size < sizeof(WORD)) return FALSE;
787 len = *(WORD *)*buffer;
788 if (!get_buffer_space( buffer, (len + 1) * sizeof(WCHAR) )) return FALSE;
789 *lparam = (LPARAM)*buffer + sizeof(WORD); /* don't erase WORD at start of buffer */
790 return TRUE;
791 }
792 case EM_SETTABSTOPS:
793 case LB_SETTABSTOPS:
794 if (!*wparam) return TRUE;
795 minsize = *wparam * sizeof(UINT);
796 break;
797 case CB_ADDSTRING:
798 case CB_INSERTSTRING:
799 case CB_FINDSTRING:
800 case CB_FINDSTRINGEXACT:
801 case CB_SELECTSTRING:
802 case LB_ADDSTRING:
803 case LB_INSERTSTRING:
804 case LB_FINDSTRING:
805 case LB_FINDSTRINGEXACT:
806 case LB_SELECTSTRING:
807 if (!*buffer) return TRUE;
808 if (!check_string( *buffer, size )) return FALSE;
809 break;
810 case CB_GETLBTEXT:
811 {
812 size = sizeof(ULONG_PTR);
813 if (combobox_has_strings( hwnd ))
814 size = (SendMessageW( hwnd, CB_GETLBTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
815 if (!get_buffer_space( buffer, size )) return FALSE;
816 break;
817 }
818 case LB_GETTEXT:
819 {
820 size = sizeof(ULONG_PTR);
821 if (listbox_has_strings( hwnd ))
822 size = (SendMessageW( hwnd, LB_GETTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
823 if (!get_buffer_space( buffer, size )) return FALSE;
824 break;
825 }
826 case LB_GETSELITEMS:
827 if (!get_buffer_space( buffer, *wparam * sizeof(UINT) )) return FALSE;
828 break;
829 case WM_NEXTMENU:
830 minsize = sizeof(MDINEXTMENU);
831 if (!get_buffer_space( buffer, sizeof(MDINEXTMENU) )) return FALSE;
832 break;
833 case WM_SIZING:
834 case WM_MOVING:
835 minsize = sizeof(RECT);
836 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
837 break;
838 case WM_MDICREATE:
839 {
840 MDICREATESTRUCTW *cs = *buffer;
841 WCHAR *str = (WCHAR *)(cs + 1);
842 if (size < sizeof(*cs)) return FALSE;
843 size -= sizeof(*cs);
844 if (HIWORD(cs->szTitle))
845 {
846 if (!check_string( str, size )) return FALSE;
847 cs->szTitle = str;
848 size -= (strlenW(str) + 1) * sizeof(WCHAR);
849 str += strlenW(str) + 1;
850 }
851 if (HIWORD(cs->szClass))
852 {
853 if (!check_string( str, size )) return FALSE;
854 cs->szClass = str;
855 }
856 break;
857 }
858 case WM_MDIGETACTIVE:
859 if (!*lparam) return TRUE;
860 if (!get_buffer_space( buffer, sizeof(BOOL) )) return FALSE;
861 break;
862 case WM_WINE_KEYBOARD_LL_HOOK:
863 minsize = sizeof(KBDLLHOOKSTRUCT);
864 break;
865 case WM_WINE_MOUSE_LL_HOOK:
866 minsize = sizeof(MSLLHOOKSTRUCT);
867 break;
868 case WM_PAINT:
869 if (!*wparam) return TRUE;
870 /* fall through */
871
872 /* these contain an HFONT */
873 case WM_SETFONT:
874 case WM_GETFONT:
875 /* these contain an HDC */
876 case WM_ERASEBKGND:
877 case WM_ICONERASEBKGND:
878 case WM_NCPAINT:
879 case WM_CTLCOLORMSGBOX:
880 case WM_CTLCOLOREDIT:
881 case WM_CTLCOLORLISTBOX:
882 case WM_CTLCOLORBTN:
883 case WM_CTLCOLORDLG:
884 case WM_CTLCOLORSCROLLBAR:
885 case WM_CTLCOLORSTATIC:
886 case WM_PRINT:
887 case WM_PRINTCLIENT:
888 /* these contain an HGLOBAL */
889 case WM_PAINTCLIPBOARD:
890 case WM_SIZECLIPBOARD:
891 /* these contain HICON */
892 case WM_GETICON:
893 case WM_SETICON:
894 case WM_QUERYDRAGICON:
895 case WM_QUERYPARKICON:
896 /* these contain pointers */
897 case WM_DROPOBJECT:
898 case WM_QUERYDROPOBJECT:
899 case WM_DRAGLOOP:
900 case WM_DRAGSELECT:
901 case WM_DRAGMOVE:
902 case WM_DEVICECHANGE:
903 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
904 return FALSE;
905
906 default:
907 return TRUE; /* message doesn't need any unpacking */
908 }
909
910 /* default exit for most messages: check minsize and store buffer in lparam */
911 if (size < minsize) return FALSE;
912 *lparam = (LPARAM)*buffer;
913 return TRUE;
914 }
915
916
917 /***********************************************************************
918 * pack_reply
919 *
920 * Pack a reply to a message for sending to another process.
921 */
922 static void pack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
923 LRESULT res, struct packed_message *data )
924 {
925 data->count = 0;
926 switch(message)
927 {
928 case WM_NCCREATE:
929 case WM_CREATE:
930 push_data( data, (CREATESTRUCTW *)lparam, sizeof(CREATESTRUCTW) );
931 break;
932 case WM_GETTEXT:
933 case CB_GETLBTEXT:
934 case LB_GETTEXT:
935 push_data( data, (WCHAR *)lparam, (res + 1) * sizeof(WCHAR) );
936 break;
937 case WM_GETMINMAXINFO:
938 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
939 break;
940 case WM_MEASUREITEM:
941 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
942 break;
943 case WM_WINDOWPOSCHANGING:
944 case WM_WINDOWPOSCHANGED:
945 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
946 break;
947 case WM_GETDLGCODE:
948 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
949 break;
950 case SBM_GETSCROLLINFO:
951 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
952 break;
953 case EM_GETRECT:
954 case LB_GETITEMRECT:
955 case CB_GETDROPPEDCONTROLRECT:
956 case WM_SIZING:
957 case WM_MOVING:
958 push_data( data, (RECT *)lparam, sizeof(RECT) );
959 break;
960 case EM_GETLINE:
961 {
962 WORD *ptr = (WORD *)lparam;
963 push_data( data, ptr, ptr[-1] * sizeof(WCHAR) );
964 break;
965 }
966 case LB_GETSELITEMS:
967 push_data( data, (UINT *)lparam, wparam * sizeof(UINT) );
968 break;
969 case WM_MDIGETACTIVE:
970 if (lparam) push_data( data, (BOOL *)lparam, sizeof(BOOL) );
971 break;
972 case WM_NCCALCSIZE:
973 if (!wparam)
974 push_data( data, (RECT *)lparam, sizeof(RECT) );
975 else
976 {
977 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
978 push_data( data, nc, sizeof(*nc) );
979 push_data( data, nc->lppos, sizeof(*nc->lppos) );
980 }
981 break;
982 case EM_GETSEL:
983 case SBM_GETRANGE:
984 case CB_GETEDITSEL:
985 if (wparam) push_data( data, (DWORD *)wparam, sizeof(DWORD) );
986 if (lparam) push_data( data, (DWORD *)lparam, sizeof(DWORD) );
987 break;
988 case WM_NEXTMENU:
989 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
990 break;
991 case WM_MDICREATE:
992 push_data( data, (MDICREATESTRUCTW *)lparam, sizeof(MDICREATESTRUCTW) );
993 break;
994 case WM_ASKCBFORMATNAME:
995 push_data( data, (WCHAR *)lparam, (strlenW((WCHAR *)lparam) + 1) * sizeof(WCHAR) );
996 break;
997 }
998 }
999
1000
1001 /***********************************************************************
1002 * unpack_reply
1003 *
1004 * Unpack a message reply received from another process.
1005 */
1006 static void unpack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1007 void *buffer, size_t size )
1008 {
1009 switch(message)
1010 {
1011 case WM_NCCREATE:
1012 case WM_CREATE:
1013 {
1014 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
1015 LPCWSTR name = cs->lpszName, class = cs->lpszClass;
1016 memcpy( cs, buffer, min( sizeof(*cs), size ));
1017 cs->lpszName = name; /* restore the original pointers */
1018 cs->lpszClass = class;
1019 break;
1020 }
1021 case WM_GETTEXT:
1022 case WM_ASKCBFORMATNAME:
1023 memcpy( (WCHAR *)lparam, buffer, min( wparam*sizeof(WCHAR), size ));
1024 break;
1025 case WM_GETMINMAXINFO:
1026 memcpy( (MINMAXINFO *)lparam, buffer, min( sizeof(MINMAXINFO), size ));
1027 break;
1028 case WM_MEASUREITEM:
1029 memcpy( (MEASUREITEMSTRUCT *)lparam, buffer, min( sizeof(MEASUREITEMSTRUCT), size ));
1030 break;
1031 case WM_WINDOWPOSCHANGING:
1032 case WM_WINDOWPOSCHANGED:
1033 memcpy( (WINDOWPOS *)lparam, buffer, min( sizeof(WINDOWPOS), size ));
1034 break;
1035 case WM_GETDLGCODE:
1036 if (lparam) memcpy( (MSG *)lparam, buffer, min( sizeof(MSG), size ));
1037 break;
1038 case SBM_GETSCROLLINFO:
1039 memcpy( (SCROLLINFO *)lparam, buffer, min( sizeof(SCROLLINFO), size ));
1040 break;
1041 case SBM_GETSCROLLBARINFO:
1042 memcpy( (SCROLLBARINFO *)lparam, buffer, min( sizeof(SCROLLBARINFO), size ));
1043 break;
1044 case EM_GETRECT:
1045 case CB_GETDROPPEDCONTROLRECT:
1046 case LB_GETITEMRECT:
1047 case WM_SIZING:
1048 case WM_MOVING:
1049 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1050 break;
1051 case EM_GETLINE:
1052 size = min( size, (size_t)*(WORD *)lparam );
1053 memcpy( (WCHAR *)lparam, buffer, size );
1054 break;
1055 case LB_GETSELITEMS:
1056 memcpy( (UINT *)lparam, buffer, min( wparam*sizeof(UINT), size ));
1057 break;
1058 case LB_GETTEXT:
1059 case CB_GETLBTEXT:
1060 memcpy( (WCHAR *)lparam, buffer, size );
1061 break;
1062 case WM_NEXTMENU:
1063 memcpy( (MDINEXTMENU *)lparam, buffer, min( sizeof(MDINEXTMENU), size ));
1064 break;
1065 case WM_MDIGETACTIVE:
1066 if (lparam) memcpy( (BOOL *)lparam, buffer, min( sizeof(BOOL), size ));
1067 break;
1068 case WM_NCCALCSIZE:
1069 if (!wparam)
1070 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1071 else
1072 {
1073 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1074 WINDOWPOS *wp = nc->lppos;
1075 memcpy( nc, buffer, min( sizeof(*nc), size ));
1076 if (size > sizeof(*nc))
1077 {
1078 size -= sizeof(*nc);
1079 memcpy( wp, (NCCALCSIZE_PARAMS*)buffer + 1, min( sizeof(*wp), size ));
1080 }
1081 nc->lppos = wp; /* restore the original pointer */
1082 }
1083 break;
1084 case EM_GETSEL:
1085 case SBM_GETRANGE:
1086 case CB_GETEDITSEL:
1087 if (wparam)
1088 {
1089 memcpy( (DWORD *)wparam, buffer, min( sizeof(DWORD), size ));
1090 if (size <= sizeof(DWORD)) break;
1091 size -= sizeof(DWORD);
1092 buffer = (DWORD *)buffer + 1;
1093 }
1094 if (lparam) memcpy( (DWORD *)lparam, buffer, min( sizeof(DWORD), size ));
1095 break;
1096 case WM_MDICREATE:
1097 {
1098 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
1099 LPCWSTR title = cs->szTitle, class = cs->szClass;
1100 memcpy( cs, buffer, min( sizeof(*cs), size ));
1101 cs->szTitle = title; /* restore the original pointers */
1102 cs->szClass = class;
1103 break;
1104 }
1105 default:
1106 ERR( "should not happen: unexpected message %x\n", message );
1107 break;
1108 }
1109 }
1110
1111
1112 /***********************************************************************
1113 * reply_message
1114 *
1115 * Send a reply to a sent message.
1116 */
1117 static void reply_message( struct received_message_info *info, LRESULT result, BOOL remove )
1118 {
1119 struct packed_message data;
1120 int i, replied = info->flags & ISMEX_REPLIED;
1121
1122 if (info->flags & ISMEX_NOTIFY) return; /* notify messages don't get replies */
1123 if (!remove && replied) return; /* replied already */
1124
1125 data.count = 0;
1126 info->flags |= ISMEX_REPLIED;
1127
1128 if (info->type == MSG_OTHER_PROCESS && !replied)
1129 {
1130 pack_reply( info->msg.hwnd, info->msg.message, info->msg.wParam,
1131 info->msg.lParam, result, &data );
1132 }
1133
1134 SERVER_START_REQ( reply_message )
1135 {
1136 req->result = result;
1137 req->remove = remove;
1138 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
1139 wine_server_call( req );
1140 }
1141 SERVER_END_REQ;
1142 }
1143
1144
1145 /***********************************************************************
1146 * handle_internal_message
1147 *
1148 * Handle an internal Wine message instead of calling the window proc.
1149 */
1150 static LRESULT handle_internal_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
1151 {
1152 if (hwnd == GetDesktopWindow()) return 0;
1153 switch(msg)
1154 {
1155 case WM_WINE_DESTROYWINDOW:
1156 return WIN_DestroyWindow( hwnd );
1157 case WM_WINE_SETWINDOWPOS:
1158 if (USER_Driver.pSetWindowPos)
1159 return USER_Driver.pSetWindowPos( (WINDOWPOS *)lparam );
1160 return 0;
1161 case WM_WINE_SHOWWINDOW:
1162 return ShowWindow( hwnd, wparam );
1163 case WM_WINE_SETPARENT:
1164 return (LRESULT)SetParent( hwnd, (HWND)wparam );
1165 case WM_WINE_SETWINDOWLONG:
1166 return (LRESULT)SetWindowLongW( hwnd, wparam, lparam );
1167 case WM_WINE_ENABLEWINDOW:
1168 return EnableWindow( hwnd, wparam );
1169 case WM_WINE_SETACTIVEWINDOW:
1170 return (LRESULT)SetActiveWindow( (HWND)wparam );
1171 case WM_WINE_KEYBOARD_LL_HOOK:
1172 return HOOK_CallHooks( WH_KEYBOARD_LL, HC_ACTION, wparam, lparam, TRUE );
1173 case WM_WINE_MOUSE_LL_HOOK:
1174 return HOOK_CallHooks( WH_MOUSE_LL, HC_ACTION, wparam, lparam, TRUE );
1175 default:
1176 if (msg >= WM_WINE_FIRST_DRIVER_MSG && msg <= WM_WINE_LAST_DRIVER_MSG)
1177 {
1178 if (!USER_Driver.pWindowMessage) return 0;
1179 return USER_Driver.pWindowMessage( hwnd, msg, wparam, lparam );
1180 }
1181 FIXME( "unknown internal message %x\n", msg );
1182 return 0;
1183 }
1184 }
1185
1186 /* since the WM_DDE_ACK response to a WM_DDE_EXECUTE message should contain the handle
1187 * to the memory handle, we keep track (in the server side) of all pairs of handle
1188 * used (the client passes its value and the content of the memory handle), and
1189 * the server stored both values (the client, and the local one, created after the
1190 * content). When a ACK message is generated, the list of pair is searched for a
1191 * matching pair, so that the client memory handle can be returned.
1192 */
1193 struct DDE_pair {
1194 HGLOBAL client_hMem;
1195 HGLOBAL server_hMem;
1196 };
1197
1198 static struct DDE_pair* dde_pairs;
1199 static int dde_num_alloc;
1200 static int dde_num_used;
1201
1202 static CRITICAL_SECTION dde_crst;
1203 static CRITICAL_SECTION_DEBUG critsect_debug =
1204 {
1205 0, 0, &dde_crst,
1206 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
1207 0, 0, { 0, (DWORD)(__FILE__ ": dde_crst") }
1208 };
1209 static CRITICAL_SECTION dde_crst = { &critsect_debug, -1, 0, 0, 0, 0 };
1210
1211 static BOOL dde_add_pair(HGLOBAL chm, HGLOBAL shm)
1212 {
1213 int i;
1214 #define GROWBY 4
1215
1216 EnterCriticalSection(&dde_crst);
1217
1218 /* now remember the pair of hMem on both sides */
1219 if (dde_num_used == dde_num_alloc)
1220 {
1221 struct DDE_pair* tmp;
1222 if (dde_pairs)
1223 tmp = HeapReAlloc( GetProcessHeap(), 0, dde_pairs,
1224 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1225 else
1226 tmp = HeapAlloc( GetProcessHeap(), 0,
1227 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1228
1229 if (!tmp)
1230 {
1231 LeaveCriticalSection(&dde_crst);
1232 return FALSE;
1233 }
1234 dde_pairs = tmp;
1235 /* zero out newly allocated part */
1236 memset(&dde_pairs[dde_num_alloc], 0, GROWBY * sizeof(struct DDE_pair));
1237 dde_num_alloc += GROWBY;
1238 }
1239 #undef GROWBY
1240 for (i = 0; i < dde_num_alloc; i++)
1241 {
1242 if (dde_pairs[i].server_hMem == 0)
1243 {
1244 dde_pairs[i].client_hMem = chm;
1245 dde_pairs[i].server_hMem = shm;
1246 dde_num_used++;
1247 break;
1248 }
1249 }
1250 LeaveCriticalSection(&dde_crst);
1251 return TRUE;
1252 }
1253
1254 static HGLOBAL dde_get_pair(HGLOBAL shm)
1255 {
1256 int i;
1257 HGLOBAL ret = 0;
1258
1259 EnterCriticalSection(&dde_crst);
1260 for (i = 0; i < dde_num_alloc; i++)
1261 {
1262 if (dde_pairs[i].server_hMem == shm)
1263 {
1264 /* free this pair */
1265 dde_pairs[i].server_hMem = 0;
1266 dde_num_used--;
1267 ret = dde_pairs[i].client_hMem;
1268 break;
1269 }
1270 }
1271 LeaveCriticalSection(&dde_crst);
1272 return ret;
1273 }
1274
1275 /***********************************************************************
1276 * post_dde_message
1277 *
1278 * Post a DDE message
1279 */
1280 static BOOL post_dde_message( DWORD dest_tid, struct packed_message *data, const struct send_message_info *info )
1281 {
1282 void* ptr = NULL;
1283 int size = 0;
1284 UINT uiLo, uiHi;
1285 LPARAM lp = 0;
1286 HGLOBAL hunlock = 0;
1287 int i;
1288 DWORD res;
1289
1290 if (!UnpackDDElParam( info->msg, info->lparam, &uiLo, &uiHi ))
1291 return FALSE;
1292
1293 lp = info->lparam;
1294 switch (info->msg)
1295 {
1296 /* DDE messages which don't require packing are:
1297 * WM_DDE_INITIATE
1298 * WM_DDE_TERMINATE
1299 * WM_DDE_REQUEST
1300 * WM_DDE_UNADVISE
1301 */
1302 case WM_DDE_ACK:
1303 if (HIWORD(uiHi))
1304 {
1305 /* uiHi should contain a hMem from WM_DDE_EXECUTE */
1306 HGLOBAL h = dde_get_pair( (HANDLE)uiHi );
1307 if (h)
1308 {
1309 /* send back the value of h on the other side */
1310 push_data( data, &h, sizeof(HGLOBAL) );
1311 lp = uiLo;
1312 TRACE( "send dde-ack %x %08x => %08lx\n", uiLo, uiHi, (DWORD)h );
1313 }
1314 }
1315 else
1316 {
1317 /* uiHi should contain either an atom or 0 */
1318 TRACE( "send dde-ack %x atom=%x\n", uiLo, uiHi );
1319 lp = MAKELONG( uiLo, uiHi );
1320 }
1321 break;
1322 case WM_DDE_ADVISE:
1323 case WM_DDE_DATA:
1324 case WM_DDE_POKE:
1325 size = 0;
1326 if (uiLo)
1327 {
1328 size = GlobalSize( (HGLOBAL)uiLo ) ;
1329 if ((info->msg == WM_DDE_ADVISE && size < sizeof(DDEADVISE)) ||
1330 (info->msg == WM_DDE_DATA && size < sizeof(DDEDATA)) ||
1331 (info->msg == WM_DDE_POKE && size < sizeof(DDEPOKE))
1332 )
1333 return FALSE;
1334 }
1335 else if (info->msg != WM_DDE_DATA) return FALSE;
1336
1337 lp = uiHi;
1338 if (uiLo)
1339 {
1340 if ((ptr = GlobalLock( (HGLOBAL)uiLo) ))
1341 {
1342 DDEDATA *dde_data = (DDEDATA *)ptr;
1343 TRACE("unused %d, fResponse %d, fRelease %d, fDeferUpd %d, fAckReq %d, cfFormat %d\n",
1344 dde_data->unused, dde_data->fResponse, dde_data->fRelease,
1345 dde_data->reserved, dde_data->fAckReq, dde_data->cfFormat);
1346 push_data( data, ptr, size );
1347 hunlock = (HGLOBAL)uiLo;
1348 }
1349 }
1350 TRACE( "send ddepack %u %x\n", size, uiHi );
1351 break;
1352 case WM_DDE_EXECUTE:
1353 if (info->lparam)
1354 {
1355 if ((ptr = GlobalLock( (HGLOBAL)info->lparam) ))
1356 {
1357 push_data(data, ptr, GlobalSize( (HGLOBAL)info->lparam ));
1358 /* so that the other side can send it back on ACK */
1359 lp = info->lparam;
1360 hunlock = (HGLOBAL)info->lparam;
1361 }
1362 }
1363 break;
1364 }
1365 SERVER_START_REQ( send_message )
1366 {
1367 req->id = dest_tid;
1368 req->type = info->type;
1369 req->flags = 0;
1370 req->win = info->hwnd;
1371 req->msg = info->msg;
1372 req->wparam = info->wparam;
1373 req->lparam = lp;
1374 req->time = GetCurrentTime();
1375 req->timeout = -1;
1376 for (i = 0; i < data->count; i++)
1377 wine_server_add_data( req, data->data[i], data->size[i] );
1378 if ((res = wine_server_call( req )))
1379 {
1380 if (res == STATUS_INVALID_PARAMETER)
1381 /* FIXME: find a STATUS_ value for this one */
1382 SetLastError( ERROR_INVALID_THREAD_ID );
1383 else
1384 SetLastError( RtlNtStatusToDosError(res) );
1385 }
1386 else
1387 FreeDDElParam(info->msg, info->lparam);
1388 }
1389 SERVER_END_REQ;
1390 if (hunlock) GlobalUnlock(hunlock);
1391
1392 return !res;
1393 }
1394
1395 /***********************************************************************
1396 * unpack_dde_message
1397 *
1398 * Unpack a posted DDE message received from another process.
1399 */
1400 static BOOL unpack_dde_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
1401 void **buffer, size_t size )
1402 {
1403 UINT uiLo, uiHi;
1404 HGLOBAL hMem = 0;
1405 void* ptr;
1406
1407 switch (message)
1408 {
1409 case WM_DDE_ACK:
1410 if (size)
1411 {
1412 /* hMem is being passed */
1413 if (size != sizeof(HGLOBAL)) return FALSE;
1414 if (!buffer || !*buffer) return FALSE;
1415 uiLo = *lparam;
1416 memcpy( &hMem, *buffer, size );
1417 uiHi = (UINT)hMem;
1418 TRACE("recv dde-ack %x mem=%x[%lx]\n", uiLo, uiHi, GlobalSize( hMem ));
1419 }
1420 else
1421 {
1422 uiLo = LOWORD( *lparam );
1423 uiHi = HIWORD( *lparam );
1424 TRACE("recv dde-ack %x atom=%x\n", uiLo, uiHi);
1425 }
1426 *lparam = PackDDElParam( WM_DDE_ACK, uiLo, uiHi );
1427 break;
1428 case WM_DDE_ADVISE:
1429 case WM_DDE_DATA:
1430 case WM_DDE_POKE:
1431 if ((!buffer || !*buffer) && message != WM_DDE_DATA) return FALSE;
1432 uiHi = *lparam;
1433 TRACE( "recv ddepack %u %x\n", size, uiHi );
1434 if (size)
1435 {
1436 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size )))
1437 return FALSE;
1438 if ((ptr = GlobalLock( hMem )))
1439 {
1440 memcpy( ptr, *buffer, size );
1441 GlobalUnlock( hMem );
1442 }
1443 else
1444 {
1445 GlobalFree( hMem );
1446 return FALSE;
1447 }
1448 }
1449 uiLo = (UINT)hMem;
1450
1451 *lparam = PackDDElParam( message, uiLo, uiHi );
1452 break;
1453 case WM_DDE_EXECUTE:
1454 if (size)
1455 {
1456 if (!buffer || !*buffer) return FALSE;
1457 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size ))) return FALSE;
1458 if ((ptr = GlobalLock( hMem )))
1459 {
1460 memcpy( ptr, *buffer, size );
1461 GlobalUnlock( hMem );
1462 TRACE( "exec: pairing c=%08lx s=%08lx\n", *lparam, (DWORD)hMem );
1463 if (!dde_add_pair( (HGLOBAL)*lparam, hMem ))
1464 {
1465 GlobalFree( hMem );
1466 return FALSE;
1467 }
1468 }
1469 else
1470 {
1471 GlobalFree( hMem );
1472 return FALSE;
1473 }
1474 } else return FALSE;
1475 *lparam = (LPARAM)hMem;
1476 break;
1477 }
1478 return TRUE;
1479 }
1480
1481 /***********************************************************************
1482 * call_window_proc
1483 *
1484 * Call a window procedure and the corresponding hooks.
1485 */
1486 static LRESULT call_window_proc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
1487 BOOL unicode, BOOL same_thread )
1488 {
1489 struct user_thread_info *thread_info = get_user_thread_info();
1490 LRESULT result = 0;
1491 WNDPROC winproc;
1492 CWPSTRUCT cwp;
1493 CWPRETSTRUCT cwpret;
1494
1495 if (thread_info->recursion_count > MAX_SENDMSG_RECURSION) return 0;
1496 thread_info->recursion_count++;
1497
1498 if (msg & 0x80000000)
1499 {
1500 result = handle_internal_message( hwnd, msg, wparam, lparam );
1501 goto done;
1502 }
1503
1504 /* first the WH_CALLWNDPROC hook */
1505 hwnd = WIN_GetFullHandle( hwnd );
1506 cwp.lParam = lparam;
1507 cwp.wParam = wparam;
1508 cwp.message = msg;
1509 cwp.hwnd = hwnd;
1510 HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, same_thread, (LPARAM)&cwp, unicode );
1511
1512 /* now call the window procedure */
1513 if (unicode)
1514 {
1515 if (!(winproc = (WNDPROC)GetWindowLongPtrW( hwnd, GWLP_WNDPROC ))) goto done;
1516 result = CallWindowProcW( winproc, hwnd, msg, wparam, lparam );
1517 }
1518 else
1519 {
1520 if (!(winproc = (WNDPROC)GetWindowLongPtrA( hwnd, GWLP_WNDPROC ))) goto done;
1521 result = CallWindowProcA( winproc, hwnd, msg, wparam, lparam );
1522 }
1523
1524 /* and finally the WH_CALLWNDPROCRET hook */
1525 cwpret.lResult = result;
1526 cwpret.lParam = lparam;
1527 cwpret.wParam = wparam;
1528 cwpret.message = msg;
1529 cwpret.hwnd = hwnd;
1530 HOOK_CallHooks( WH_CALLWNDPROCRET, HC_ACTION, same_thread, (LPARAM)&cwpret, unicode );
1531 done:
1532 thread_info->recursion_count--;
1533 return result;
1534 }
1535
1536
1537 /***********************************************************************
1538 * send_parent_notify
1539 *
1540 * Send a WM_PARENTNOTIFY to all ancestors of the given window, unless
1541 * the window has the WS_EX_NOPARENTNOTIFY style.
1542 */
1543 static void send_parent_notify( HWND hwnd, WORD event, WORD idChild, POINT pt )
1544 {
1545 /* pt has to be in the client coordinates of the parent window */
1546 MapWindowPoints( 0, hwnd, &pt, 1 );
1547 for (;;)
1548 {
1549 HWND parent;
1550
1551 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) break;
1552 if (GetWindowLongW( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) break;
1553 if (!(parent = GetParent(hwnd))) break;
1554 MapWindowPoints( hwnd, parent, &pt, 1 );
1555 hwnd = parent;
1556 SendMessageW( hwnd, WM_PARENTNOTIFY,
1557 MAKEWPARAM( event, idChild ), MAKELPARAM( pt.x, pt.y ) );
1558 }
1559 }
1560
1561
1562 /***********************************************************************
1563 * accept_hardware_message
1564 *
1565 * Tell the server we have passed the message to the app
1566 * (even though we may end up dropping it later on)
1567 */
1568 static void accept_hardware_message( UINT hw_id, BOOL remove, HWND new_hwnd )
1569 {
1570 SERVER_START_REQ( accept_hardware_message )
1571 {
1572 req->hw_id = hw_id;
1573 req->remove = remove;
1574 req->new_win = new_hwnd;
1575 if (wine_server_call( req ))
1576 FIXME("Failed to reply to MSG_HARDWARE message. Message may not be removed from queue.\n");
1577 }
1578 SERVER_END_REQ;
1579 }
1580
1581
1582 /***********************************************************************
1583 * process_keyboard_message
1584 *
1585 * returns TRUE if the contents of 'msg' should be passed to the application
1586 */
1587 static BOOL process_keyboard_message( MSG *msg, UINT hw_id, HWND hwnd_filter,
1588 UINT first, UINT last, BOOL remove )
1589 {
1590 EVENTMSG event;
1591
1592 /* FIXME: is this really the right place for this hook? */
1593 event.message = msg->message;
1594 event.hwnd = msg->hwnd;
1595 event.time = msg->time;
1596 event.paramL = (msg->wParam & 0xFF) | (HIWORD(msg->lParam) << 8);
1597 event.paramH = msg->lParam & 0x7FFF;
1598 if (HIWORD(msg->lParam) & 0x0100) event.paramH |= 0x8000; /* special_key - bit */
1599 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1600
1601 /* check message filters */
1602 if (msg->message < first || msg->message > last) return FALSE;
1603 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1604
1605 if (remove)
1606 {
1607 /* Handle F1 key by sending out WM_HELP message */
1608 if ((msg->message == WM_KEYUP) &&
1609 (msg->wParam == VK_F1) &&
1610 (msg->hwnd != GetDesktopWindow()) &&
1611 !MENU_IsMenuActive())
1612 {
1613 HELPINFO hi;
1614 hi.cbSize = sizeof(HELPINFO);
1615 hi.iContextType = HELPINFO_WINDOW;
1616 hi.iCtrlId = GetWindowLongPtrA( msg->hwnd, GWLP_ID );
1617 hi.hItemHandle = msg->hwnd;
1618 hi.dwContextId = GetWindowContextHelpId( msg->hwnd );
1619 hi.MousePos = msg->pt;
1620 SendMessageW( msg->hwnd, WM_HELP, 0, (LPARAM)&hi );
1621 }
1622 }
1623
1624 if (HOOK_CallHooks( WH_KEYBOARD, remove ? HC_ACTION : HC_NOREMOVE,
1625 LOWORD(msg->wParam), msg->lParam, TRUE ))
1626 {
1627 /* skip this message */
1628 HOOK_CallHooks( WH_CBT, HCBT_KEYSKIPPED, LOWORD(msg->wParam), msg->lParam, TRUE );
1629 accept_hardware_message( hw_id, TRUE, 0 );
1630 return FALSE;
1631 }
1632 accept_hardware_message( hw_id, remove, 0 );
1633 return TRUE;
1634 }
1635
1636
1637 /***********************************************************************
1638 * process_mouse_message
1639 *
1640 * returns TRUE if the contents of 'msg' should be passed to the application
1641 */
1642 static BOOL process_mouse_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1643 UINT first, UINT last, BOOL remove )
1644 {
1645 static MSG clk_msg;
1646
1647 POINT pt;
1648 UINT message;
1649 INT hittest;
1650 EVENTMSG event;
1651 GUITHREADINFO info;
1652 MOUSEHOOKSTRUCT hook;
1653 BOOL eatMsg;
1654
1655 /* find the window to dispatch this mouse message to */
1656
1657 hittest = HTCLIENT;
1658 GetGUIThreadInfo( GetCurrentThreadId(), &info );
1659 if (!(msg->hwnd = info.hwndCapture))
1660 {
1661 HWND hWndScope = msg->hwnd;
1662 /* If no capture HWND, find window which contains the mouse position.
1663 * Also find the position of the cursor hot spot (hittest) */
1664 if (!IsWindow(hWndScope)) hWndScope = 0;
1665 if (!(msg->hwnd = WINPOS_WindowFromPoint( hWndScope, msg->pt, &hittest )))
1666 msg->hwnd = GetDesktopWindow();
1667 }
1668
1669 if (!WIN_IsCurrentThread( msg->hwnd ))
1670 {
1671 accept_hardware_message( hw_id, FALSE, msg->hwnd );
1672 return FALSE;
1673 }
1674
1675 /* FIXME: is this really the right place for this hook? */
1676 event.message = msg->message;
1677 event.time = msg->time;
1678 event.hwnd = msg->hwnd;
1679 event.paramL = msg->pt.x;
1680 event.paramH = msg->pt.y;
1681 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1682
1683 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1684
1685 pt = msg->pt;
1686 message = msg->message;
1687 /* Note: windows has no concept of a non-client wheel message */
1688 if (message != WM_MOUSEWHEEL)
1689 {
1690 if (hittest != HTCLIENT)
1691 {
1692 message += WM_NCMOUSEMOVE - WM_MOUSEMOVE;
1693 msg->wParam = hittest;
1694 }
1695 else
1696 {
1697 /* coordinates don't get translated while tracking a menu */
1698 /* FIXME: should differentiate popups and top-level menus */
1699 if (!(info.flags & GUI_INMENUMODE))
1700 ScreenToClient( msg->hwnd, &pt );
1701 }
1702 }
1703 msg->lParam = MAKELONG( pt.x, pt.y );
1704
1705 /* translate double clicks */
1706
1707 if ((msg->message == WM_LBUTTONDOWN) ||
1708 (msg->message == WM_RBUTTONDOWN) ||
1709 (msg->message == WM_MBUTTONDOWN) ||
1710 (msg->message == WM_XBUTTONDOWN))
1711 {
1712 BOOL update = remove;
1713
1714 /* translate double clicks -
1715 * note that ...MOUSEMOVEs can slip in between
1716 * ...BUTTONDOWN and ...BUTTONDBLCLK messages */
1717
1718 if ((info.flags & (GUI_INMENUMODE|GUI_INMOVESIZE)) ||
1719 hittest != HTCLIENT ||
1720 (GetClassLongA( msg->hwnd, GCL_STYLE ) & CS_DBLCLKS))
1721 {
1722 if ((msg->message == clk_msg.message) &&
1723 (msg->hwnd == clk_msg.hwnd) &&
1724 (msg->wParam == clk_msg.wParam) &&
1725 (msg->time - clk_msg.time < GetDoubleClickTime()) &&
1726 (abs(msg->pt.x - clk_msg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
1727 (abs(msg->pt.y - clk_msg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
1728 {
1729 message += (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
1730 if (update)
1731 {
1732 clk_msg.message = 0; /* clear the double click conditions */
1733 update = FALSE;
1734 }
1735 }
1736 }
1737 if (message < first || message > last) return FALSE;
1738 /* update static double click conditions */
1739 if (update) clk_msg = *msg;
1740 }
1741 else
1742 {
1743 if (message < first || message > last) return FALSE;
1744 }
1745
1746 /* message is accepted now (but may still get dropped) */
1747
1748 hook.pt = msg->pt;
1749 hook.hwnd = msg->hwnd;
1750 hook.wHitTestCode = hittest;
1751 hook.dwExtraInfo = extra_info;
1752 if (HOOK_CallHooks( WH_MOUSE, remove ? HC_ACTION : HC_NOREMOVE,
1753 message, (LPARAM)&hook, TRUE ))
1754 {
1755 hook.pt = msg->pt;
1756 hook.hwnd = msg->hwnd;
1757 hook.wHitTestCode = hittest;
1758 hook.dwExtraInfo = extra_info;
1759 HOOK_CallHooks( WH_CBT, HCBT_CLICKSKIPPED, message, (LPARAM)&hook, TRUE );
1760 accept_hardware_message( hw_id, TRUE, 0 );
1761 return FALSE;
1762 }
1763
1764 if ((hittest == HTERROR) || (hittest == HTNOWHERE))
1765 {
1766 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd,
1767 MAKELONG( hittest, msg->message ));
1768 accept_hardware_message( hw_id, TRUE, 0 );
1769 return FALSE;
1770 }
1771
1772 accept_hardware_message( hw_id, remove, 0 );
1773
1774 if (!remove || info.hwndCapture)
1775 {
1776 msg->message = message;
1777 return TRUE;
1778 }
1779
1780 eatMsg = FALSE;
1781
1782 if ((msg->message == WM_LBUTTONDOWN) ||
1783 (msg->message == WM_RBUTTONDOWN) ||
1784 (msg->message == WM_MBUTTONDOWN) ||
1785 (msg->message == WM_XBUTTONDOWN))
1786 {
1787 /* Send the WM_PARENTNOTIFY,
1788 * note that even for double/nonclient clicks
1789 * notification message is still WM_L/M/RBUTTONDOWN.
1790 */
1791 send_parent_notify( msg->hwnd, msg->message, 0, msg->pt );
1792
1793 /* Activate the window if needed */
1794
1795 if (msg->hwnd != info.hwndActive)
1796 {
1797 HWND hwndTop = msg->hwnd;
1798 while (hwndTop)
1799 {
1800 if ((GetWindowLongW( hwndTop, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) != WS_CHILD) break;
1801 hwndTop = GetParent( hwndTop );
1802 }
1803
1804 if (hwndTop && hwndTop != GetDesktopWindow())
1805 {
1806 LONG ret = SendMessageW( msg->hwnd, WM_MOUSEACTIVATE, (WPARAM)hwndTop,
1807 MAKELONG( hittest, msg->message ) );
1808 switch(ret)
1809 {
1810 case MA_NOACTIVATEANDEAT:
1811 eatMsg = TRUE;
1812 /* fall through */
1813 case MA_NOACTIVATE:
1814 break;
1815 case MA_ACTIVATEANDEAT:
1816 eatMsg = TRUE;
1817 /* fall through */
1818 case MA_ACTIVATE:
1819 case 0:
1820 if (!FOCUS_MouseActivate( hwndTop )) eatMsg = TRUE;
1821 break;
1822 default:
1823 WARN( "unknown WM_MOUSEACTIVATE code %ld\n", ret );
1824 break;
1825 }
1826 }
1827 }
1828 }
1829
1830 /* send the WM_SETCURSOR message */
1831
1832 /* Windows sends the normal mouse message as the message parameter
1833 in the WM_SETCURSOR message even if it's non-client mouse message */
1834 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd, MAKELONG( hittest, msg->message ));
1835
1836 msg->message = message;
1837 return !eatMsg;
1838 }
1839
1840
1841 /***********************************************************************
1842 * process_hardware_message
1843 *
1844 * Process a hardware message; return TRUE if message should be passed on to the app
1845 */
1846 static BOOL process_hardware_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1847 UINT first, UINT last, BOOL remove )
1848 {
1849 if (is_keyboard_message( msg->message ))
1850 return process_keyboard_message( msg, hw_id, hwnd_filter, first, last, remove );
1851
1852 if (is_mouse_message( msg->message ))
1853 return process_mouse_message( msg, hw_id, extra_info, hwnd_filter, first, last, remove );
1854
1855 ERR( "unknown message type %x\n", msg->message );
1856 return FALSE;
1857 }
1858
1859
1860 /***********************************************************************
1861 * call_sendmsg_callback
1862 *
1863 * Call the callback function of SendMessageCallback.
1864 */
1865 static inline void call_sendmsg_callback( SENDASYNCPROC callback, HWND hwnd, UINT msg,
1866 ULONG_PTR data, LRESULT result )
1867 {
1868 if (TRACE_ON(relay))
1869 DPRINTF( "%04lx:Call message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
1870 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
1871 data, result );
1872 callback( hwnd, msg, data, result );
1873 if (TRACE_ON(relay))
1874 DPRINTF( "%04lx:Ret message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
1875 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
1876 data, result );
1877 }
1878
1879
1880 /***********************************************************************
1881 * get_hook_proc
1882 *
1883 * Retrieve the hook procedure real value for a module-relative proc
1884 */
1885 static void *get_hook_proc( void *proc, const WCHAR *module )
1886 {
1887 HMODULE mod;
1888
1889 if (!(mod = GetModuleHandleW(module)))
1890 {
1891 TRACE( "loading %s\n", debugstr_w(module) );
1892 /* FIXME: the library will never be freed */
1893 if (!(mod = LoadLibraryW(module))) return NULL;
1894 }
1895 return (char *)mod + (ULONG_PTR)proc;
1896 }
1897
1898
1899 /***********************************************************************
1900 * peek_message
1901 *
1902 * Peek for a message matching the given parameters. Return FALSE if none available.
1903 * All pending sent messages are processed before returning.
1904 */
1905 static BOOL peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, int flags )
1906 {
1907 LRESULT result;
1908 ULONG_PTR extra_info = 0;
1909 struct user_thread_info *thread_info = get_user_thread_info();
1910 struct received_message_info info, *old_info;
1911 unsigned int hw_id = 0; /* id of previous hardware message */
1912
1913 if (!first && !last) last = ~0;
1914
1915 for (;;)
1916 {
1917 NTSTATUS res;
1918 void *buffer = NULL;
1919 size_t size = 0, buffer_size = 0;
1920
1921 do /* loop while buffer is too small */
1922 {
1923 if (buffer_size && !(buffer = HeapAlloc( GetProcessHeap(), 0, buffer_size )))
1924 return FALSE;
1925 SERVER_START_REQ( get_message )
1926 {
1927 req->flags = flags;
1928 req->get_win = hwnd;
1929 req->get_first = first;
1930 req->get_last = last;
1931 req->hw_id = hw_id;
1932 if (buffer_size) wine_server_set_reply( req, buffer, buffer_size );
1933 if (!(res = wine_server_call( req )))
1934 {
1935 size = wine_server_reply_size( reply );
1936 info.type = reply->type;
1937 info.msg.hwnd = reply->win;
1938 info.msg.message = reply->msg;
1939 info.msg.wParam = reply->wparam;
1940 info.msg.lParam = reply->lparam;
1941 info.msg.time = reply->time;
1942 info.msg.pt.x = reply->x;
1943 info.msg.pt.y = reply->y;
1944 info.hook = reply->hook;
1945 info.hook_proc = reply->hook_proc;
1946 hw_id = reply->hw_id;
1947 extra_info = reply->info;
1948 thread_info->active_hooks = reply->active_hooks;
1949 }
1950 else
1951 {
1952 HeapFree( GetProcessHeap(), 0, buffer );
1953 buffer_size = reply->total;
1954 }
1955 }
1956 SERVER_END_REQ;
1957 } while (res == STATUS_BUFFER_OVERFLOW);
1958
1959 if (res) return FALSE;
1960
1961 TRACE( "got type %d msg %x (%s) hwnd %p wp %x lp %lx\n",
1962 info.type, info.msg.message,
1963 (info.type == MSG_WINEVENT) ? "MSG_WINEVENT" : SPY_GetMsgName(info.msg.message, info.msg.hwnd),
1964 info.msg.hwnd, info.msg.wParam, info.msg.lParam );
1965
1966 switch(info.type)
1967 {
1968 case MSG_ASCII:
1969 case MSG_UNICODE:
1970 info.flags = ISMEX_SEND;
1971 break;
1972 case MSG_NOTIFY:
1973 info.flags = ISMEX_NOTIFY;
1974 break;
1975 case MSG_CALLBACK:
1976 info.flags = ISMEX_CALLBACK;
1977 break;
1978 case MSG_CALLBACK_RESULT:
1979 call_sendmsg_callback( (SENDASYNCPROC)info.msg.wParam, info.msg.hwnd,
1980 info.msg.message, extra_info, info.msg.lParam );
1981 goto next;
1982 case MSG_WINEVENT:
1983 if (size)
1984 {
1985 WCHAR module[MAX_PATH];
1986 size = min( size, (MAX_PATH - 1) * sizeof(WCHAR) );
1987 memcpy( module, buffer, size );
1988 module[size / sizeof(WCHAR)] = 0;
1989 if (!(info.hook_proc = get_hook_proc( info.hook_proc, module )))
1990 {
1991 ERR( "invalid winevent hook module name %s\n", debugstr_w(module) );
1992 goto next;
1993 }
1994 }
1995 if (TRACE_ON(relay))
1996 DPRINTF( "%04lx:Call winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%x,child_id=%lx,tid=%04lx,time=%lx)\n",
1997 GetCurrentThreadId(), info.hook_proc,
1998 info.hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
1999 info.msg.lParam, extra_info, info.msg.time);
2000
2001 info.hook_proc( info.hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2002 info.msg.lParam, extra_info, info.msg.time );
2003
2004 if (TRACE_ON(relay))
2005 DPRINTF( "%04lx:Ret winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%x,child_id=%lx,tid=%04lx,time=%lx)\n",
2006 GetCurrentThreadId(), info.hook_proc,
2007 info.hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2008 info.msg.lParam, extra_info, info.msg.time);
2009 goto next;
2010 case MSG_OTHER_PROCESS:
2011 info.flags = ISMEX_SEND;
2012 if (!unpack_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2013 &info.msg.lParam, &buffer, size ))
2014 {
2015 ERR( "invalid packed message %x (%s) hwnd %p wp %x lp %lx size %d\n",
2016 info.msg.message, SPY_GetMsgName(info.msg.message, info.msg.hwnd), info.msg.hwnd,
2017 info.msg.wParam, info.msg.lParam, size );
2018 /* ignore it */
2019 reply_message( &info, 0, TRUE );
2020 goto next;
2021 }
2022 break;
2023 case MSG_HARDWARE:
2024 if (!process_hardware_message( &info.msg, hw_id, extra_info,
2025 hwnd, first, last, flags & GET_MSG_REMOVE ))
2026 {
2027 TRACE("dropping msg %x\n", info.msg.message );
2028 goto next; /* ignore it */
2029 }
2030 thread_info->GetMessagePosVal = MAKELONG( info.msg.pt.x, info.msg.pt.y );
2031 /* fall through */
2032 case MSG_POSTED:
2033 thread_info->GetMessageExtraInfoVal = extra_info;
2034 if (info.msg.message >= WM_DDE_FIRST && info.msg.message <= WM_DDE_LAST)
2035 {
2036 if (!unpack_dde_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2037 &info.msg.lParam, &buffer, size ))
2038 {
2039 ERR( "invalid packed dde-message %x (%s) hwnd %p wp %x lp %lx size %d\n",
2040 info.msg.message, SPY_GetMsgName(info.msg.message, info.msg.hwnd),
2041 info.msg.hwnd, info.msg.wParam, info.msg.lParam, size );
2042 goto next; /* ignore it */
2043 }
2044 }
2045 *msg = info.msg;
2046 HeapFree( GetProcessHeap(), 0, buffer );
2047 return TRUE;
2048 }
2049
2050 /* if we get here, we have a sent message; call the window procedure */
2051 old_info = thread_info->receive_info;
2052 thread_info->receive_info = &info;
2053 result = call_window_proc( info.msg.hwnd, info.msg.message, info.msg.wParam,
2054 info.msg.lParam, (info.type != MSG_ASCII), FALSE );
2055 reply_message( &info, result, TRUE );
2056 thread_info->receive_info = old_info;
2057 next:
2058 HeapFree( GetProcessHeap(), 0, buffer );
2059 }
2060 }
2061
2062
2063 /***********************************************************************
2064 * process_sent_messages
2065 *
2066 * Process all pending sent messages.
2067 */
2068 inline static void process_sent_messages(void)
2069 {
2070 MSG msg;
2071 peek_message( &msg, 0, 0, 0, GET_MSG_REMOVE | GET_MSG_SENT_ONLY );
2072 }
2073
2074
2075 /***********************************************************************
2076 * get_server_queue_handle
2077 *
2078 * Get a handle to the server message queue for the current thread.
2079 */
2080 static HANDLE get_server_queue_handle(void)
2081 {
2082 struct user_thread_info *thread_info = get_user_thread_info();
2083 HANDLE ret;
2084
2085 if (!(ret = thread_info->server_queue))
2086 {
2087 SERVER_START_REQ( get_msg_queue )
2088 {
2089 wine_server_call( req );
2090 ret = reply->handle;
2091 }
2092 SERVER_END_REQ;
2093 thread_info->server_queue = ret;
2094 if (!ret) ERR( "Cannot get server thread queue\n" );
2095 }
2096 return ret;
2097 }
2098
2099
2100 /***********************************************************************
2101 * wait_message_reply
2102 *
2103 * Wait until a sent message gets replied to.
2104 */
2105 static void wait_message_reply( UINT flags )
2106 {
2107 HANDLE server_queue = get_server_queue_handle();
2108
2109 for (;;)
2110 {
2111 unsigned int wake_bits = 0, changed_bits = 0;
2112 DWORD dwlc, res;
2113
2114 SERVER_START_REQ( set_queue_mask )
2115 {
2116 req->wake_mask = QS_SMRESULT | ((flags & SMTO_BLOCK) ? 0 : QS_SENDMESSAGE);
2117 req->changed_mask = req->wake_mask;
2118 req->skip_wait = 1;
2119 if (!wine_server_call( req ))
2120 {
2121 wake_bits = reply->wake_bits;
2122 changed_bits = reply->changed_bits;
2123 }
2124 }
2125 SERVER_END_REQ;
2126
2127 if (wake_bits & QS_SMRESULT) return; /* got a result */
2128 if (wake_bits & QS_SENDMESSAGE)
2129 {
2130 /* Process the sent message immediately */
2131 process_sent_messages();
2132 continue;
2133 }
2134
2135 /* now wait for it */
2136
2137 ReleaseThunkLock( &dwlc );
2138
2139 if (USER_Driver.pMsgWaitForMultipleObjectsEx)
2140 res = USER_Driver.pMsgWaitForMultipleObjectsEx( 1, &server_queue,
2141 INFINITE, QS_ALLINPUT, 0 );
2142 else
2143 res = WaitForSingleObject( server_queue, INFINITE );
2144
2145 if (dwlc) RestoreThunkLock( dwlc );
2146 }
2147 }
2148
2149 /***********************************************************************
2150 * put_message_in_queue
2151 *
2152 * Put a sent message into the destination queue.
2153 * For inter-process message, reply_size is set to expected size of reply data.
2154 */
2155 static BOOL put_message_in_queue( DWORD dest_tid, const struct send_message_info *info,
2156 size_t *reply_size )
2157 {
2158 struct packed_message data;
2159 unsigned int res;
2160 int i, timeout = -1;
2161
2162 if (info->type != MSG_NOTIFY &&
2163 info->type != MSG_CALLBACK &&
2164 info->type != MSG_POSTED &&
2165 info->timeout != INFINITE)
2166 timeout = info->timeout;
2167
2168 data.count = 0;
2169 if (info->type == MSG_OTHER_PROCESS)
2170 {
2171 *reply_size = pack_message( info->hwnd, info->msg, info->wparam, info->lparam, &data );
2172 if (data.count == -1)
2173 {
2174 WARN( "cannot pack message %x\n", info->msg );
2175 return FALSE;
2176 }
2177 }
2178 else if (info->type == MSG_POSTED && info->msg >= WM_DDE_FIRST && info->msg <= WM_DDE_LAST)
2179 {
2180 return post_dde_message( dest_tid, &data, info );
2181 }
2182
2183 SERVER_START_REQ( send_message )
2184 {
2185 req->id = dest_tid;
2186 req->type = info->type;
2187 req->flags = 0;
2188 req->win = info->hwnd;
2189 req->msg = info->msg;
2190 req->wparam = info->wparam;
2191 req->lparam = info->lparam;
2192 req->time = GetCurrentTime();
2193 req->timeout = timeout;
2194
2195 if (info->type == MSG_CALLBACK)
2196 {
2197 req->callback = info->callback;
2198 req->info = info->data;
2199 }
2200
2201 if (info->flags & SMTO_ABORTIFHUNG) req->flags |= SEND_MSG_ABORT_IF_HUNG;
2202 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
2203 if ((res = wine_server_call( req )))
2204 {
2205 if (res == STATUS_INVALID_PARAMETER)
2206 /* FIXME: find a STATUS_ value for this one */
2207 SetLastError( ERROR_INVALID_THREAD_ID );
2208 else
2209 SetLastError( RtlNtStatusToDosError(res) );
2210 }
2211 }
2212 SERVER_END_REQ;
2213 return !res;
2214 }
2215
2216
2217 /***********************************************************************
2218 * retrieve_reply
2219 *
2220 * Retrieve a message reply from the server.
2221 */
2222 static LRESULT retrieve_reply( const struct send_message_info *info,
2223 size_t reply_size, LRESULT *result )
2224 {
2225 NTSTATUS status;
2226 void *reply_data = NULL;
2227
2228 if (reply_size)
2229 {
2230 if (!(reply_data = HeapAlloc( GetProcessHeap(), 0, reply_size )))
2231 {
2232 WARN( "no memory for reply %d bytes, will be truncated\n", reply_size );
2233 reply_size = 0;
2234 }
2235 }
2236 SERVER_START_REQ( get_message_reply )
2237 {
2238 req->cancel = 1;
2239 if (reply_size) wine_server_set_reply( req, reply_data, reply_size );
2240 if (!(status = wine_server_call( req ))) *result = reply->result;
2241 reply_size = wine_server_reply_size( reply );
2242 }
2243 SERVER_END_REQ;
2244 if (!status && reply_size)
2245 unpack_reply( info->hwnd, info->msg, info->wparam, info->lparam, reply_data, reply_size );
2246
2247 HeapFree( GetProcessHeap(), 0, reply_data );
2248
2249 TRACE( "hwnd %p msg %x (%s) wp %x lp %lx got reply %lx (err=%ld)\n",
2250 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam,
2251 info->lparam, *result, status );
2252
2253 /* MSDN states that last error is 0 on timeout, but at least NT4 returns ERROR_TIMEOUT */
2254 if (status) SetLastError( RtlNtStatusToDosError(status) );
2255 return !status;
2256 }
2257
2258
2259 /***********************************************************************
2260 * send_inter_thread_message
2261 */
2262 static LRESULT send_inter_thread_message( DWORD dest_tid, const struct send_message_info *info,
2263 LRESULT *res_ptr )
2264 {
2265 size_t reply_size = 0;
2266
2267 TRACE( "hwnd %p msg %x (%s) wp %x lp %lx\n",
2268 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam, info->lparam );
2269
2270 USER_CheckNotLock();
2271
2272 if (!put_message_in_queue( dest_tid, info, &reply_size )) return 0;
2273
2274 /* there's no reply to wait for on notify/callback messages */
2275 if (info->type == MSG_NOTIFY || info->type == MSG_CALLBACK) return 1;
2276
2277 wait_message_reply( info->flags );
2278 return retrieve_reply( info, reply_size, res_ptr );
2279 }
2280
2281
2282 /***********************************************************************
2283 * MSG_SendInternalMessageTimeout
2284 *
2285 * Same as SendMessageTimeoutW but sends the message to a specific thread
2286 * without requiring a window handle. Only works for internal Wine messages.
2287 */
2288 LRESULT MSG_SendInternalMessageTimeout( DWORD dest_pid, DWORD dest_tid,
2289 UINT msg, WPARAM wparam, LPARAM lparam,
2290 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2291 {
2292 struct send_message_info info;
2293 LRESULT ret, result;
2294
2295 assert( msg & 0x80000000 ); /* must be an internal Wine message */
2296
2297 info.type = MSG_UNICODE;
2298 info.hwnd = 0;
2299 info.msg = msg;
2300 info.wparam = wparam;
2301 info.lparam = lparam;
2302 info.flags = flags;
2303 info.timeout = timeout;
2304
2305 if (USER_IsExitingThread( dest_tid )) return 0;
2306
2307 if (dest_tid == GetCurrentThreadId())
2308 {
2309 result = handle_internal_message( 0, msg, wparam, lparam );
2310 ret = 1;
2311 }
2312 else
2313 {
2314 if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
2315 ret = send_inter_thread_message( dest_tid, &info, &result );
2316 }
2317 if (ret && res_ptr) *res_ptr = result;
2318 return ret;
2319 }
2320
2321
2322 /***********************************************************************
2323 * SendMessageTimeoutW (USER32.@)
2324 */
2325 LRESULT WINAPI SendMessageTimeoutW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2326 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2327 {
2328 struct send_message_info info;
2329 DWORD dest_tid, dest_pid;
2330 LRESULT ret, result;
2331
2332 info.type = MSG_UNICODE;
2333 info.hwnd = hwnd;
2334 info.msg = msg;
2335 info.wparam = wparam;
2336 info.lparam = lparam;
2337 info.flags = flags;
2338 info.timeout = timeout;
2339
2340 if (is_broadcast(hwnd))
2341 {
2342 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2343 if (res_ptr) *res_ptr = 1;
2344 return 1;
2345 }
2346
2347 if (!(dest_tid = GetWindowThreadProcessId( hwnd, &dest_pid ))) return 0;
2348
2349 if (USER_IsExitingThread( dest_tid )) return 0;
2350
2351 SPY_EnterMessage( SPY_SENDMESSAGE, hwnd, msg, wparam, lparam );
2352
2353 if (dest_tid == GetCurrentThreadId())
2354 {
2355 result = call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
2356 ret = 1;
2357 }
2358 else
2359 {
2360 if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
2361 ret = send_inter_thread_message( dest_tid, &info, &result );
2362 }
2363
2364 SPY_ExitMessage( SPY_RESULT_OK, hwnd, msg, result, wparam, lparam );
2365 if (ret && res_ptr) *res_ptr = result;
2366 return ret;
2367 }
2368
2369
2370 /***********************************************************************
2371 * SendMessageTimeoutA (USER32.@)
2372 */
2373 LRESULT WINAPI SendMessageTimeoutA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2374 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2375 {
2376 struct send_message_info info;
2377 DWORD dest_tid, dest_pid;
2378 LRESULT ret, result;
2379
2380 info.type = MSG_ASCII;
2381 info.hwnd = hwnd;
2382 info.msg = msg;
2383 info.wparam = wparam;
2384 info.lparam = lparam;
2385 info.flags = flags;
2386 info.timeout = timeout;
2387
2388 if (is_broadcast(hwnd))
2389 {
2390 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2391 if (res_ptr) *res_ptr = 1;
2392 return 1;
2393 }
2394
2395 if (!(dest_tid = GetWindowThreadProcessId( hwnd, &dest_pid ))) return 0;
2396
2397 if (USER_IsExitingThread( dest_tid )) return 0;
2398
2399 SPY_EnterMessage( SPY_SENDMESSAGE, hwnd, msg, wparam, lparam );
2400
2401 if (dest_tid == GetCurrentThreadId())
2402 {
2403 result = call_window_proc( hwnd, msg, wparam, lparam, FALSE, TRUE );
2404 ret = 1;
2405 }
2406 else if (dest_pid == GetCurrentProcessId())
2407 {
2408 ret = send_inter_thread_message( dest_tid, &info, &result );
2409 }
2410 else
2411 {
2412 /* inter-process message: need to map to Unicode */
2413 info.type = MSG_OTHER_PROCESS;
2414 if (is_unicode_message( info.msg ))
2415 {
2416 if (WINPROC_MapMsg32ATo32W( info.hwnd, info.msg, &info.wparam, &info.lparam ) == -1)
2417 return 0;
2418 ret = send_inter_thread_message( dest_tid, &info, &result );
2419 result = WINPROC_UnmapMsg32ATo32W( info.hwnd, info.msg, info.wparam,
2420 info.lparam, result );
2421 }
2422 else ret = send_inter_thread_message( dest_tid, &info, &result );
2423 }
2424 SPY_ExitMessage( SPY_RESULT_OK, hwnd, msg, result, wparam, lparam );
2425 if (ret && res_ptr) *res_ptr = result;
2426 return ret;
2427 }
2428
2429
2430 /***********************************************************************
2431 * SendMessageW (USER32.@)
2432 */
2433 LRESULT WINAPI SendMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2434 {
2435 LRESULT res = 0;
2436 SendMessageTimeoutW( hwnd, msg, wparam, lparam, SMTO_NORMAL, INFINITE, &res );
2437 return res;
2438 }
2439
2440
2441 /***********************************************************************
2442 * SendMessageA (USER32.@)
2443 */
2444 LRESULT WINAPI SendMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2445 {
2446 LRESULT res = 0;
2447 SendMessageTimeoutA( hwnd, msg, wparam, lparam, SMTO_NORMAL, INFINITE, &res );
2448 return res;
2449 }
2450
2451
2452 /***********************************************************************
2453 * SendNotifyMessageA (USER32.@)
2454 */
2455 BOOL WINAPI SendNotifyMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2456 {
2457 return SendNotifyMessageW( hwnd, msg, map_wparam_AtoW( msg, wparam ), lparam );
2458 }
2459
2460
2461 /***********************************************************************
2462 * SendNotifyMessageW (USER32.@)
2463 */
2464 BOOL WINAPI SendNotifyMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2465 {
2466 struct send_message_info info;
2467 DWORD dest_tid;
2468 LRESULT result;
2469
2470 if (is_pointer_message(msg))
2471 {
2472 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2473 return FALSE;
2474 }
2475
2476 info.type = MSG_NOTIFY;
2477 info.hwnd = hwnd;
2478 info.msg = msg;
2479 info.wparam = wparam;
2480 info.lparam = lparam;
2481 info.flags = 0;
2482
2483 if (is_broadcast(hwnd))
2484 {
2485 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2486 return TRUE;
2487 }
2488
2489 if (!(dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2490
2491 if (USER_IsExitingThread( dest_tid )) return TRUE;
2492
2493 if (dest_tid == GetCurrentThreadId())
2494 {
2495 call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
2496 return TRUE;
2497 }
2498 return send_inter_thread_message( dest_tid, &info, &result );
2499 }
2500
2501
2502 /***********************************************************************
2503 * SendMessageCallbackA (USER32.@)
2504 */
2505 BOOL WINAPI SendMessageCallbackA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2506 SENDASYNCPROC callback, ULONG_PTR data )
2507 {
2508 return SendMessageCallbackW( hwnd, msg, map_wparam_AtoW( msg, wparam ),
2509 lparam, callback, data );
2510 }
2511
2512
2513 /***********************************************************************
2514 * SendMessageCallbackW (USER32.@)
2515 */
2516 BOOL WINAPI SendMessageCallbackW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2517 SENDASYNCPROC callback, ULONG_PTR data )
2518 {
2519 struct send_message_info info;
2520 LRESULT result;
2521 DWORD dest_tid;
2522
2523 if (is_pointer_message(msg))
2524 {
2525 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2526 return FALSE;
2527 }
2528
2529 info.type = MSG_CALLBACK;
2530 info.hwnd = hwnd;
2531 info.msg = msg;
2532 info.wparam = wparam;
2533 info.lparam = lparam;
2534 info.callback = callback;
2535 info.data = data;
2536 info.flags = 0;
2537
2538 if (is_broadcast(hwnd))
2539 {
2540 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2541 return TRUE;
2542 }
2543
2544 if (!(dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2545
2546 if (USER_IsExitingThread( dest_tid )) return TRUE;
2547
2548 if (dest_tid == GetCurrentThreadId())
2549 {
2550 result = call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
2551 call_sendmsg_callback( callback, hwnd, msg, data, result );
2552 return TRUE;
2553 }
2554 FIXME( "callback will not be called\n" );
2555 return send_inter_thread_message( dest_tid, &info, &result );
2556 }
2557
2558
2559 /***********************************************************************
2560 * ReplyMessage (USER32.@)
2561 */
2562 BOOL WINAPI ReplyMessage( LRESULT result )
2563 {
2564 struct received_message_info *info = get_user_thread_info()->receive_info;
2565
2566 if (!info) return FALSE;
2567 reply_message( info, result, FALSE );
2568 return TRUE;
2569 }
2570
2571
2572 /***********************************************************************
2573 * InSendMessage (USER32.@)
2574 */
2575 BOOL WINAPI InSendMessage(void)
2576 {
2577 return (InSendMessageEx(NULL) & (ISMEX_SEND|ISMEX_REPLIED)) == ISMEX_SEND;
2578 }
2579
2580
2581 /***********************************************************************
2582 * InSendMessageEx (USER32.@)
2583 */
2584 DWORD WINAPI InSendMessageEx( LPVOID reserved )
2585 {
2586 struct received_message_info *info = get_user_thread_info()->receive_info;
2587
2588 if (info) return info->flags;
2589 return ISMEX_NOSEND;
2590 }
2591
2592
2593 /***********************************************************************
2594 * PostMessageA (USER32.@)
2595 */
2596 BOOL WINAPI PostMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2597 {
2598 return PostMessageW( hwnd, msg, map_wparam_AtoW( msg, wparam ), lparam );
2599 }
2600
2601
2602 /***********************************************************************
2603 * PostMessageW (USER32.@)
2604 */
2605 BOOL WINAPI PostMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2606 {
2607 struct send_message_info info;
2608 DWORD dest_tid;
2609
2610 if (is_pointer_message( msg ))
2611 {
2612 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2613 return FALSE;
2614 }
2615
2616 TRACE( "hwnd %p msg %x (%s) wp %x lp %lx\n",
2617 hwnd, msg, SPY_GetMsgName(msg, hwnd), wparam, lparam );
2618
2619 info.type = MSG_POSTED;
2620 info.hwnd = hwnd;
2621 info.msg = msg;
2622 info.wparam = wparam;
2623 info.lparam = lparam;
2624 info.flags = 0;
2625
2626 if (is_broadcast(hwnd))
2627 {
2628 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2629 return TRUE;
2630 }
2631
2632 if (!hwnd) return PostThreadMessageW( GetCurrentThreadId(), msg, wparam, lparam );
2633
2634 if (!(dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2635
2636 if (USER_IsExitingThread( dest_tid )) return TRUE;
2637
2638 return put_message_in_queue( dest_tid, &info, NULL );
2639 }
2640
2641
2642 /**********************************************************************
2643 * PostThreadMessageA (USER32.@)
2644 */
2645 BOOL WINAPI PostThreadMessageA( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2646 {
2647 return PostThreadMessageW( thread, msg, map_wparam_AtoW( msg, wparam ), lparam );
2648 }
2649
2650
2651 /**********************************************************************
2652 * PostThreadMessageW (USER32.@)
2653 */
2654 BOOL WINAPI PostThreadMessageW( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2655 {
2656 struct send_message_info info;
2657
2658 if (is_pointer_message( msg ))
2659 {
2660 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2661 return FALSE;
2662 }
2663 if (USER_IsExitingThread( thread )) return TRUE;
2664
2665 info.type = MSG_POSTED;
2666 info.hwnd = 0;
2667 info.msg = msg;
2668 info.wparam = wparam;
2669 info.lparam = lparam;
2670 info.flags = 0;
2671 return put_message_in_queue( thread, &info, NULL );
2672 }
2673
2674
2675 /***********************************************************************
2676 * PostQuitMessage (USER32.@)
2677 */
2678 void WINAPI PostQuitMessage( INT exitCode )
2679 {
2680 PostThreadMessageW( GetCurrentThreadId(), WM_QUIT, exitCode, 0 );
2681 }
2682
2683
2684 /***********************************************************************
2685 * PeekMessageW (USER32.@)
2686 */
2687 BOOL WINAPI PeekMessageW( MSG *msg_out, HWND hwnd, UINT first, UINT last, UINT flags )
2688 {
2689 struct user_thread_info *thread_info = get_user_thread_info();
2690 MSG msg;
2691
2692 USER_CheckNotLock();
2693
2694 /* check for graphics events */
2695 if (USER_Driver.pMsgWaitForMultipleObjectsEx)
2696 USER_Driver.pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
2697
2698 hwnd = WIN_GetFullHandle( hwnd );
2699
2700 for (;;)
2701 {
2702 if (!peek_message( &msg, hwnd, first, last, (flags & PM_REMOVE) ? GET_MSG_REMOVE : 0 ))
2703 {
2704 if (!(flags & PM_NOYIELD))
2705 {
2706 DWORD count;
2707 ReleaseThunkLock(&count);
2708 NtYieldExecution();
2709 if (count) RestoreThunkLock(count);
2710 }
2711 return FALSE;
2712 }
2713 if (msg.message & 0x80000000)
2714 {
2715 handle_internal_message( msg.hwnd, msg.message, msg.wParam, msg.lParam );
2716 if (!(flags & PM_REMOVE)) /* have to remove it explicitly */
2717 peek_message( &msg, msg.hwnd, msg.message, msg.message, GET_MSG_REMOVE );
2718 }
2719 else break;
2720 }
2721
2722 thread_info->GetMessageTimeVal = msg.time;
2723 msg.pt.x = LOWORD( thread_info->GetMessagePosVal );
2724 msg.pt.y = HIWORD( thread_info->GetMessagePosVal );
2725
2726 HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, flags & PM_REMOVE, (LPARAM)&msg, TRUE );
2727
2728 /* copy back our internal safe copy of message data to msg_out.
2729 * msg_out is a variable from the *program*, so it can't be used
2730 * internally as it can get "corrupted" by our use of SendMessage()
2731 * (back to the program) inside the message handling itself. */
2732 if (!msg_out)
2733 {
2734 SetLastError( ERROR_NOACCESS );
2735 return FALSE;
2736 }
2737 *msg_out = msg;
2738 return TRUE;
2739 }
2740
2741
2742 /***********************************************************************
2743 * PeekMessageA (USER32.@)
2744 */
2745 BOOL WINAPI PeekMessageA( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
2746 {
2747 BOOL ret = PeekMessageW( msg, hwnd, first, last, flags );
2748 if (ret) msg->wParam = map_wparam_WtoA( msg->message, msg->wParam );
2749 return ret;
2750 }
2751
2752
2753 /***********************************************************************
2754 * GetMessageW (USER32.@)
2755 */
2756 BOOL WINAPI GetMessageW( MSG *msg, HWND hwnd, UINT first, UINT last )
2757 {
2758 HANDLE server_queue = get_server_queue_handle();
2759 int mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
2760
2761 if (first || last)
2762 {
2763 if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
2764 if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
2765 ((first <= WM_NCMOUSELAST) && (last >= WM_NCMOUSEFIRST)) ) mask |= QS_MOUSE;
2766 if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER;
2767 if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER;
2768 if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT;
2769 }
2770 else mask |= QS_MOUSE | QS_KEY | QS_TIMER | QS_PAINT;
2771
2772 while (!PeekMessageW( msg, hwnd, first, last, PM_REMOVE ))
2773 {
2774 /* wait until one of the bits is set */
2775 unsigned int wake_bits = 0, changed_bits = 0;
2776 DWORD dwlc;
2777
2778 SERVER_START_REQ( set_queue_mask )
2779 {
2780 req->wake_mask = QS_SENDMESSAGE;
2781 req->changed_mask = mask;
2782 req->skip_wait = 1;
2783 if (!wine_server_call( req ))
2784 {
2785 wake_bits = reply->wake_bits;
2786 changed_bits = reply->changed_bits;
2787 }
2788 }
2789 SERVER_END_REQ;
2790
2791 if (changed_bits & mask) continue;
2792 if (wake_bits & QS_SENDMESSAGE) continue;
2793
2794 TRACE( "(%04lx) mask=%08x, bits=%08x, changed=%08x, waiting\n",
2795 GetCurrentThreadId(), mask, wake_bits, changed_bits );
2796
2797 ReleaseThunkLock( &dwlc );
2798 if (USER_Driver.pMsgWaitForMultipleObjectsEx)
2799 USER_Driver.pMsgWaitForMultipleObjectsEx( 1, &server_queue, INFINITE,
2800 QS_ALLINPUT, 0 );
2801 else
2802 WaitForSingleObject( server_queue, INFINITE );
2803 if (dwlc) RestoreThunkLock( dwlc );
2804 }
2805
2806 return (msg->message != WM_QUIT);
2807 }
2808
2809
2810 /***********************************************************************
2811 * GetMessageA (USER32.@)
2812 */
2813 BOOL WINAPI GetMessageA( MSG *msg, HWND hwnd, UINT first, UINT last )
2814 {
2815 GetMessageW( msg, hwnd, first, last );
2816 msg->wParam = map_wparam_WtoA( msg->message, msg->wParam );
2817 return (msg->message != WM_QUIT);
2818 }
2819
2820
2821 /***********************************************************************
2822 * IsDialogMessage (USER32.@)
2823 * IsDialogMessageA (USER32.@)
2824 */
2825 BOOL WINAPI IsDialogMessageA( HWND hwndDlg, LPMSG pmsg )
2826 {
2827 MSG msg = *pmsg;
2828 msg.wParam = map_wparam_AtoW( msg.message, msg.wParam );
2829 return IsDialogMessageW( hwndDlg, &msg );
2830 }
2831
2832
2833 /***********************************************************************
2834 * TranslateMessage (USER32.@)
2835 *
2836 * Implementation of TranslateMessage.
2837 *
2838 * TranslateMessage translates virtual-key messages into character-messages,
2839 * as follows :
2840 * WM_KEYDOWN/WM_KEYUP combinations produce a WM_CHAR or WM_DEADCHAR message.
2841 * ditto replacing WM_* with WM_SYS*
2842 * This produces WM_CHAR messages only for keys mapped to ASCII characters
2843 * by the keyboard driver.
2844 *
2845 * If the message is WM_KEYDOWN, WM_KEYUP, WM_SYSKEYDOWN, or WM_SYSKEYUP, the
2846 * return value is nonzero, regardless of the translation.
2847 *
2848 */
2849 BOOL WINAPI TranslateMessage( const MSG *msg )
2850 {
2851 UINT message;
2852 WCHAR wp[2];
2853 BYTE state[256];
2854
2855 if (msg->message < WM_KEYFIRST || msg->message > WM_KEYLAST) return FALSE;
2856 if (msg->message != WM_KEYDOWN && msg->message != WM_SYSKEYDOWN) return TRUE;
2857
2858 TRACE_(key)("Translating key %s (%04x), scancode %02x\n",
2859 SPY_GetVKeyName(msg->wParam), msg->wParam, LOBYTE(HIWORD(msg->lParam)));
2860
2861 GetKeyboardState( state );
2862 /* FIXME : should handle ToUnicode yielding 2 */
2863 switch (ToUnicode(msg->wParam, HIWORD(msg->lParam), state, wp, 2, 0))
2864 {
2865 case 1:
2866 message = (msg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
2867 TRACE_(key)("1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
2868 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
2869 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
2870 break;
2871
2872 case -1:
2873 message = (msg->message == WM_KEYDOWN) ? WM_DEADCHAR : WM_SYSDEADCHAR;
2874 TRACE_(key)("-1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
2875 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
2876 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
2877 break;
2878 }
2879 return TRUE;
2880 }
2881
2882
2883 /***********************************************************************
2884 * DispatchMessageA (USER32.@)
2885 */
2886 LONG WINAPI DispatchMessageA( const MSG* msg )
2887 {
2888 WND * wndPtr;
2889 LONG retval;
2890 WNDPROC winproc;
2891
2892 /* Process timer messages */
2893 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
2894 {
2895 if (msg->lParam) return CallWindowProcA( (WNDPROC)msg->lParam, msg->hwnd,
2896 msg->message, msg->wParam, GetTickCount() );
2897 }
2898
2899 if (!(wndPtr = WIN_GetPtr( msg->hwnd )))
2900 {
2901 if (msg->hwnd) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
2902 return 0;
2903 }
2904 if (wndPtr == WND_OTHER_PROCESS || wndPtr == WND_DESKTOP)
2905 {
2906 if (IsWindow( msg->hwnd )) SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2907 else SetLastError( ERROR_INVALID_WINDOW_HANDLE );
2908 return 0;
2909 }
2910 if (wndPtr->tid != GetCurrentThreadId())
2911 {
2912 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2913 WIN_ReleasePtr( wndPtr );
2914 return 0;
2915 }
2916 winproc = wndPtr->winproc;
2917 WIN_ReleasePtr( wndPtr );
2918
2919 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
2920 msg->wParam, msg->lParam );
2921 retval = CallWindowProcA( winproc, msg->hwnd, msg->message,
2922 msg->wParam, msg->lParam );
2923 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
2924 msg->wParam, msg->lParam );
2925
2926 if (msg->message == WM_PAINT)
2927 {
2928 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
2929 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
2930 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
2931 DeleteObject( hrgn );
2932 }
2933 return retval;
2934 }
2935
2936
2937 /***********************************************************************
2938 * DispatchMessageW (USER32.@) Process a message
2939 *
2940 * Process the message specified in the structure *_msg_.
2941 *
2942 * If the lpMsg parameter points to a WM_TIMER message and the
2943 * parameter of the WM_TIMER message is not NULL, the lParam parameter
2944 * points to the function that is called instead of the window
2945 * procedure.
2946 *
2947 * The message must be valid.
2948 *
2949 * RETURNS
2950 *
2951 * DispatchMessage() returns the result of the window procedure invoked.
2952 *
2953 * CONFORMANCE
2954 *
2955 * ECMA-234, Win32
2956 *
2957 */
2958 LONG WINAPI DispatchMessageW( const MSG* msg )
2959 {
2960 WND * wndPtr;
2961 LONG retval;
2962 WNDPROC winproc;
2963
2964 /* Process timer messages */
2965 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
2966 {
2967 if (msg->lParam) return CallWindowProcW( (WNDPROC)msg->lParam, msg->hwnd,
2968 msg->message, msg->wParam, GetTickCount() );
2969 }
2970
2971 if (!(wndPtr = WIN_GetPtr( msg->hwnd )))
2972 {
2973 if (msg->hwnd) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
2974 return 0;
2975 }
2976 if (wndPtr == WND_OTHER_PROCESS || wndPtr == WND_DESKTOP)
2977 {
2978 if (IsWindow( msg->hwnd )) SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2979 else SetLastError( ERROR_INVALID_WINDOW_HANDLE );
2980 return 0;
2981 }
2982 if (wndPtr->tid != GetCurrentThreadId())
2983 {
2984 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2985 WIN_ReleasePtr( wndPtr );
2986 return 0;
2987 }
2988 winproc = wndPtr->winproc;
2989 WIN_ReleasePtr( wndPtr );
2990
2991 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
2992 msg->wParam, msg->lParam );
2993 retval = CallWindowProcW( winproc, msg->hwnd, msg->message,
2994 msg->wParam, msg->lParam );
2995 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
2996 msg->wParam, msg->lParam );
2997
2998 if (msg->message == WM_PAINT)
2999 {
3000 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
3001 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
3002 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
3003 DeleteObject( hrgn );
3004 }
3005 return retval;
3006 }
3007
3008
3009 /***********************************************************************
3010 * GetMessagePos (USER.119)
3011 * GetMessagePos (USER32.@)
3012 *
3013 * The GetMessagePos() function returns a long value representing a
3014 * cursor position, in screen coordinates, when the last message
3015 * retrieved by the GetMessage() function occurs. The x-coordinate is
3016 * in the low-order word of the return value, the y-coordinate is in
3017 * the high-order word. The application can use the MAKEPOINT()
3018 * macro to obtain a POINT structure from the return value.
3019 *
3020 * For the current cursor position, use GetCursorPos().
3021 *
3022 * RETURNS
3023 *
3024 * Cursor position of last message on success, zero on failure.
3025 *
3026 * CONFORMANCE
3027 *
3028 * ECMA-234, Win32
3029 *
3030 */
3031 DWORD WINAPI GetMessagePos(void)
3032 {
3033 return get_user_thread_info()->GetMessagePosVal;
3034 }
3035
3036
3037 /***********************************************************************
3038 * GetMessageTime (USER.120)
3039 * GetMessageTime (USER32.@)
3040 *
3041 * GetMessageTime() returns the message time for the last message
3042 * retrieved by the function. The time is measured in milliseconds with
3043 * the same offset as GetTickCount().
3044 *
3045 * Since the tick count wraps, this is only useful for moderately short
3046 * relative time comparisons.
3047 *
3048 * RETURNS
3049 *
3050 * Time of last message on success, zero on failure.
3051 */
3052 LONG WINAPI GetMessageTime(void)
3053 {
3054 return get_user_thread_info()->GetMessageTimeVal;
3055 }
3056
3057
3058 /***********************************************************************
3059 * GetMessageExtraInfo (USER.288)
3060 * GetMessageExtraInfo (USER32.@)
3061 */
3062 LPARAM WINAPI GetMessageExtraInfo(void)
3063 {
3064 return get_user_thread_info()->GetMessageExtraInfoVal;
3065 }
3066
3067
3068 /***********************************************************************
3069 * SetMessageExtraInfo (USER32.@)
3070 */
3071 LPARAM WINAPI SetMessageExtraInfo(LPARAM lParam)
3072 {
3073 struct user_thread_info *thread_info = get_user_thread_info();
3074 LONG old_value = thread_info->GetMessageExtraInfoVal;
3075 thread_info->GetMessageExtraInfoVal = lParam;
3076 return old_value;
3077 }
3078
3079
3080 /***********************************************************************
3081 * WaitMessage (USER.112) Suspend thread pending messages
3082 * WaitMessage (USER32.@) Suspend thread pending messages
3083 *
3084 * WaitMessage() suspends a thread until events appear in the thread's
3085 * queue.
3086 */
3087 BOOL WINAPI WaitMessage(void)
3088 {
3089 return (MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, QS_ALLINPUT, 0 ) != WAIT_FAILED);
3090 }
3091
3092
3093 /***********************************************************************
3094 * MsgWaitForMultipleObjectsEx (USER32.@)
3095 */
3096 DWORD WINAPI MsgWaitForMultipleObjectsEx( DWORD count, CONST HANDLE *pHandles,
3097 DWORD timeout, DWORD mask, DWORD flags )
3098 {
3099 HANDLE handles[MAXIMUM_WAIT_OBJECTS];
3100 DWORD i, ret, lock;
3101
3102 if (count > MAXIMUM_WAIT_OBJECTS-1)
3103 {
3104 SetLastError( ERROR_INVALID_PARAMETER );
3105 return WAIT_FAILED;
3106 }
3107
3108 /* set the queue mask */
3109 SERVER_START_REQ( set_queue_mask )
3110 {
3111 req->wake_mask = (flags & MWMO_INPUTAVAILABLE) ? mask : 0;
3112 req->changed_mask = mask;
3113 req->skip_wait = 0;
3114 wine_server_call( req );
3115 }
3116 SERVER_END_REQ;
3117
3118 /* Add the thread event to the handle list */
3119 for (i = 0; i < count; i++) handles[i] = pHandles[i];
3120 handles[count] = get_server_queue_handle();
3121
3122 ReleaseThunkLock( &lock );
3123 if (USER_Driver.pMsgWaitForMultipleObjectsEx)
3124 {
3125 ret = USER_Driver.pMsgWaitForMultipleObjectsEx( count+1, handles, timeout, mask, flags );
3126 if (ret == count+1) ret = count; /* pretend the msg queue is ready */
3127 }
3128 else
3129 ret = WaitForMultipleObjectsEx( count+1, handles, flags & MWMO_WAITALL,
3130 timeout, flags & MWMO_ALERTABLE );
3131 if (lock) RestoreThunkLock( lock );
3132 return ret;
3133 }
3134
3135
3136 /***********************************************************************
3137 * MsgWaitForMultipleObjects (USER32.@)
3138 */
3139 DWORD WINAPI MsgWaitForMultipleObjects( DWORD count, CONST HANDLE *handles,
3140 BOOL wait_all, DWORD timeout, DWORD mask )
3141 {
3142 return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
3143 wait_all ? MWMO_WAITALL : 0 );
3144 }
3145
3146
3147 /***********************************************************************
3148 * WaitForInputIdle (USER32.@)
3149 */
3150 DWORD WINAPI WaitForInputIdle( HANDLE hProcess, DWORD dwTimeOut )
3151 {
3152 DWORD start_time, elapsed, ret;
3153 HANDLE idle_event = (HANDLE)-1;
3154
3155 SERVER_START_REQ( wait_input_idle )
3156 {
3157 req->handle = hProcess;
3158 req->timeout = dwTimeOut;
3159 if (!(ret = wine_server_call_err( req ))) idle_event = reply->event;
3160 }
3161 SERVER_END_REQ;
3162 if (ret) return WAIT_FAILED; /* error */
3163 if (!idle_event) return 0; /* no event to wait on */
3164
3165 start_time = GetTickCount();
3166 elapsed = 0;
3167
3168 TRACE("waiting for %p\n", idle_event );
3169 do
3170 {
3171 ret = MsgWaitForMultipleObjects ( 1, &idle_event, FALSE, dwTimeOut - elapsed, QS_SENDMESSAGE );
3172 switch (ret)
3173 {
3174 case WAIT_OBJECT_0+1:
3175 process_sent_messages();
3176 break;
3177 case WAIT_TIMEOUT:
3178 case WAIT_FAILED:
3179 TRACE("timeout or error\n");
3180 return ret;
3181 default:
3182 TRACE("finished\n");
3183 return 0;
3184 }
3185 if (dwTimeOut != INFINITE)
3186 {
3187 elapsed = GetTickCount() - start_time;
3188 if (elapsed > dwTimeOut)
3189 break;
3190 }
3191 }
3192 while (1);
3193
3194 return WAIT_TIMEOUT;
3195 }
3196
3197
3198 /***********************************************************************
3199 * UserYield (USER.332)
3200 */
3201 void WINAPI UserYield16(void)
3202 {
3203 DWORD count;
3204
3205 /* Handle sent messages */
3206 process_sent_messages();
3207
3208 /* Yield */
3209 ReleaseThunkLock(&count);
3210
3211 if (count)
3212 {
3213 RestoreThunkLock(count);
3214 /* Handle sent messages again */
3215 process_sent_messages();
3216 }
3217 }
3218
3219
3220 /***********************************************************************
3221 * RegisterWindowMessage (USER.118)
3222 * RegisterWindowMessageA (USER32.@)
3223 */
3224 WORD WINAPI RegisterWindowMessageA( LPCSTR str )
3225 {
3226 TRACE("%s\n", str );
3227 return GlobalAddAtomA( str );
3228 }
3229
3230
3231 /***********************************************************************
3232 * RegisterWindowMessageW (USER32.@)
3233 */
3234 WORD WINAPI RegisterWindowMessageW( LPCWSTR str )
3235 {
3236 TRACE("%p\n", str );
3237 return GlobalAddAtomW( str );
3238 }
3239
3240
3241 /***********************************************************************
3242 * BroadcastSystemMessage (USER32.@)
3243 * BroadcastSystemMessageA (USER32.@)
3244 */
3245 LONG WINAPI BroadcastSystemMessageA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3246 {
3247 if ((*recipients & BSM_APPLICATIONS) || (*recipients == BSM_ALLCOMPONENTS))
3248 {
3249 FIXME( "(%08lx,%08lx,%08x,%08x,%08lx): semi-stub!\n", flags, *recipients, msg, wp, lp );
3250 PostMessageA( HWND_BROADCAST, msg, wp, lp );
3251 return 1;
3252 }
3253 else
3254 {
3255 FIXME( "(%08lx,%08lx,%08x,%08x,%08lx): stub!\n", flags, *recipients, msg, wp, lp);
3256 return -1;
3257 }
3258 }
3259
3260
3261 /***********************************************************************
3262 * BroadcastSystemMessageW (USER32.@)
3263 */
3264 LONG WINAPI BroadcastSystemMessageW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3265 {
3266 if ((*recipients & BSM_APPLICATIONS) || (*recipients == BSM_ALLCOMPONENTS))
3267 {
3268 FIXME( "(%08lx,%08lx,%08x,%08x,%08lx): semi-stub!\n", flags, *recipients, msg, wp, lp );
3269 PostMessageW( HWND_BROADCAST, msg, wp, lp );
3270 return 1;
3271 }
3272 else
3273 {
3274 FIXME( "(%08lx,%08lx,%08x,%08x,%08lx): stub!\n", flags, *recipients, msg, wp, lp );
3275 return -1;
3276 }
3277 }
3278
3279
3280 /***********************************************************************
3281 * SetMessageQueue (USER32.@)
3282 */
3283 BOOL WINAPI SetMessageQueue( INT size )
3284 {
3285 /* now obsolete the message queue will be expanded dynamically as necessary */
3286 return TRUE;
3287 }
3288
3289
3290 /***********************************************************************
3291 * MessageBeep (USER32.@)
3292 */
3293 BOOL WINAPI MessageBeep( UINT i )
3294 {
3295 BOOL active = TRUE;
3296 SystemParametersInfoA( SPI_GETBEEP, 0, &active, FALSE );
3297 if (active && USER_Driver.pBeep) USER_Driver.pBeep();
3298 return TRUE;
3299 }
3300
3301
3302 /***********************************************************************
3303 * SetTimer (USER32.@)
3304 */
3305 UINT_PTR WINAPI SetTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3306 {
3307 UINT_PTR ret;
3308 WNDPROC winproc = 0;
3309
3310 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, WIN_PROC_32A );
3311
3312 SERVER_START_REQ( set_win_timer )
3313 {
3314 req->win = hwnd;
3315 req->msg = WM_TIMER;
3316 req->id = id;
3317 req->rate = max( timeout, SYS_TIMER_RATE );
3318 req->lparam = (unsigned int)winproc;
3319 if (!wine_server_call_err( req ))
3320 {
3321 ret = reply->id;
3322 if (!ret) ret = TRUE;
3323 }
3324 else ret = 0;
3325 }
3326 SERVER_END_REQ;
3327
3328 TRACE("Added %p %x %p timeout %d\n", hwnd, id, winproc, timeout );
3329 return ret;
3330 }
3331
3332
3333 /***********************************************************************
3334 * SetSystemTimer (USER32.@)
3335 */
3336 UINT_PTR WINAPI SetSystemTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3337 {
3338 UINT_PTR ret;
3339 WNDPROC winproc = 0;
3340
3341 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, WIN_PROC_32A );
3342
3343 SERVER_START_REQ( set_win_timer )
3344 {
3345 req->win = hwnd;
3346 req->msg = WM_SYSTIMER;
3347 req->id = id;
3348 req->rate = max( timeout, SYS_TIMER_RATE );
3349 req->lparam = (unsigned int)winproc;
3350 if (!wine_server_call_err( req ))
3351 {
3352 ret = reply->id;
3353 if (!ret) ret = TRUE;
3354 }
3355 else ret = 0;
3356 }
3357 SERVER_END_REQ;
3358
3359 TRACE("Added %p %x %p timeout %d\n", hwnd, id, winproc, timeout );
3360 return ret;
3361 }
3362
3363
3364 /***********************************************************************
3365 * KillTimer (USER32.@)
3366 */
3367 BOOL WINAPI KillTimer( HWND hwnd, UINT_PTR id )
3368 {
3369 BOOL ret;
3370
3371 TRACE("%p %d\n", hwnd, id );
3372
3373 SERVER_START_REQ( kill_win_timer )
3374 {
3375 req->win = hwnd;
3376 req->msg = WM_TIMER;
3377 req->id = id;
3378 ret = !wine_server_call_err( req );
3379 }
3380 SERVER_END_REQ;
3381 return ret;
3382 }
3383
3384
3385 /***********************************************************************
3386 * KillSystemTimer (USER32.@)
3387 */
3388 BOOL WINAPI KillSystemTimer( HWND hwnd, UINT_PTR id )
3389 {
3390 BOOL ret;
3391
3392 TRACE("%p %d\n", hwnd, id );
3393
3394 SERVER_START_REQ( kill_win_timer )
3395 {
3396 req->win = hwnd;
3397 req->msg = WM_SYSTIMER;
3398 req->id = id;
3399 ret = !wine_server_call_err( req );
3400 }
3401 SERVER_END_REQ;
3402 return ret;
3403 }
3404
3405
3406 /**********************************************************************
3407 * GetGUIThreadInfo (USER32.@)
3408 */
3409 BOOL WINAPI GetGUIThreadInfo( DWORD id, GUITHREADINFO *info )
3410 {
3411 BOOL ret;
3412
3413 SERVER_START_REQ( get_thread_input )
3414 {
3415 req->tid = id;
3416 if ((ret = !wine_server_call_err( req )))
3417 {
3418 info->flags = 0;
3419 info->hwndActive = reply->active;
3420 info->hwndFocus = reply->focus;
3421 info->hwndCapture = reply->capture;
3422 info->hwndMenuOwner = reply->menu_owner;
3423 info->hwndMoveSize = reply->move_size;
3424 info->hwndCaret = reply->caret;
3425 info->rcCaret.left = reply->rect.left;
3426 info->rcCaret.top = reply->rect.top;
3427 info->rcCaret.right = reply->rect.right;
3428 info->rcCaret.bottom = reply->rect.bottom;
3429 if (reply->menu_owner) info->flags |= GUI_INMENUMODE;
3430 if (reply->move_size) info->flags |= GUI_INMOVESIZE;
3431 if (reply->caret) info->flags |= GUI_CARETBLINKING;
3432 }
3433 }
3434 SERVER_END_REQ;
3435 return ret;
3436 }
3437
3438
3439 /******************************************************************
3440 * IsHungAppWindow (USER32.@)
3441 *
3442 */
3443 BOOL WINAPI IsHungAppWindow( HWND hWnd )
3444 {
3445 DWORD dwResult;
3446 return !SendMessageTimeoutA(hWnd, WM_NULL, 0, 0, SMTO_ABORTIFHUNG, 5000, &dwResult);
3447 }
Maarten's multimedia branch