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user32: 0 vs. INFINITE timeout.
[wine.git] / dlls / user / message.c
blob3fc261d2a9ebb61e5296c58a7abd82b479fe2aa6
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 #define WIN32_NO_STATUS
29 #include "windef.h"
30 #include "winbase.h"
31 #include "wingdi.h"
32 #include "winuser.h"
33 #include "winerror.h"
34 #include "winnls.h"
35 #include "dde.h"
36 #include "wine/unicode.h"
37 #include "wine/server.h"
38 #include "user_private.h"
39 #include "win.h"
40 #include "winpos.h"
41 #include "controls.h"
42 #include "winproc.h"
43 #include "wine/debug.h"
44
45 WINE_DEFAULT_DEBUG_CHANNEL(msg);
46 WINE_DECLARE_DEBUG_CHANNEL(relay);
47 WINE_DECLARE_DEBUG_CHANNEL(key);
48
49 #define WM_NCMOUSEFIRST WM_NCMOUSEMOVE
50 #define WM_NCMOUSELAST (WM_NCMOUSEFIRST+(WM_MOUSELAST-WM_MOUSEFIRST))
51
52 #define MAX_PACK_COUNT 4
53 #define MAX_SENDMSG_RECURSION 64
54
55 #define SYS_TIMER_RATE 55 /* min. timer rate in ms (actually 54.925)*/
56
57 /* description of the data fields that need to be packed along with a sent message */
58 struct packed_message
59 {
60 int count;
61 const void *data[MAX_PACK_COUNT];
62 size_t size[MAX_PACK_COUNT];
63 };
64
65 /* info about the message currently being received by the current thread */
66 struct received_message_info
67 {
68 enum message_type type;
69 MSG msg;
70 UINT flags; /* InSendMessageEx return flags */
71 HWINEVENTHOOK hook; /* winevent hook handle */
72 WINEVENTPROC hook_proc; /* winevent hook proc address */
73 };
74
75 /* structure to group all parameters for sent messages of the various kinds */
76 struct send_message_info
77 {
78 enum message_type type;
79 HWND hwnd;
80 UINT msg;
81 WPARAM wparam;
82 LPARAM lparam;
83 UINT flags; /* flags for SendMessageTimeout */
84 UINT timeout; /* timeout for SendMessageTimeout */
85 SENDASYNCPROC callback; /* callback function for SendMessageCallback */
86 ULONG_PTR data; /* callback data */
87 };
88
89
90 /* flag for messages that contain pointers */
91 /* 32 messages per entry, messages 0..31 map to bits 0..31 */
92
93 #define SET(msg) (1 << ((msg) & 31))
94
95 static const unsigned int message_pointer_flags[] =
96 {
97 /* 0x00 - 0x1f */
98 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) |
99 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
100 /* 0x20 - 0x3f */
101 SET(WM_GETMINMAXINFO) | SET(WM_DRAWITEM) | SET(WM_MEASUREITEM) | SET(WM_DELETEITEM) |
102 SET(WM_COMPAREITEM),
103 /* 0x40 - 0x5f */
104 SET(WM_WINDOWPOSCHANGING) | SET(WM_WINDOWPOSCHANGED) | SET(WM_COPYDATA) |
105 SET(WM_NOTIFY) | SET(WM_HELP),
106 /* 0x60 - 0x7f */
107 SET(WM_STYLECHANGING) | SET(WM_STYLECHANGED),
108 /* 0x80 - 0x9f */
109 SET(WM_NCCREATE) | SET(WM_NCCALCSIZE) | SET(WM_GETDLGCODE),
110 /* 0xa0 - 0xbf */
111 SET(EM_GETSEL) | SET(EM_GETRECT) | SET(EM_SETRECT) | SET(EM_SETRECTNP),
112 /* 0xc0 - 0xdf */
113 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETTABSTOPS),
114 /* 0xe0 - 0xff */
115 SET(SBM_GETRANGE) | SET(SBM_SETSCROLLINFO) | SET(SBM_GETSCROLLINFO) | SET(SBM_GETSCROLLBARINFO),
116 /* 0x100 - 0x11f */
117 0,
118 /* 0x120 - 0x13f */
119 0,
120 /* 0x140 - 0x15f */
121 SET(CB_GETEDITSEL) | SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) |
122 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) |
123 SET(CB_GETDROPPEDCONTROLRECT) | SET(CB_FINDSTRINGEXACT),
124 /* 0x160 - 0x17f */
125 0,
126 /* 0x180 - 0x19f */
127 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_SELECTSTRING) |
128 SET(LB_DIR) | SET(LB_FINDSTRING) |
129 SET(LB_GETSELITEMS) | SET(LB_SETTABSTOPS) | SET(LB_ADDFILE) | SET(LB_GETITEMRECT),
130 /* 0x1a0 - 0x1bf */
131 SET(LB_FINDSTRINGEXACT),
132 /* 0x1c0 - 0x1df */
133 0,
134 /* 0x1e0 - 0x1ff */
135 0,
136 /* 0x200 - 0x21f */
137 SET(WM_NEXTMENU) | SET(WM_SIZING) | SET(WM_MOVING) | SET(WM_DEVICECHANGE),
138 /* 0x220 - 0x23f */
139 SET(WM_MDICREATE) | SET(WM_MDIGETACTIVE) | SET(WM_DROPOBJECT) |
140 SET(WM_QUERYDROPOBJECT) | SET(WM_DRAGLOOP) | SET(WM_DRAGSELECT) | SET(WM_DRAGMOVE),
141 /* 0x240 - 0x25f */
142 0,
143 /* 0x260 - 0x27f */
144 0,
145 /* 0x280 - 0x29f */
146 0,
147 /* 0x2a0 - 0x2bf */
148 0,
149 /* 0x2c0 - 0x2df */
150 0,
151 /* 0x2e0 - 0x2ff */
152 0,
153 /* 0x300 - 0x31f */
154 SET(WM_ASKCBFORMATNAME)
155 };
156
157 /* flags for messages that contain Unicode strings */
158 static const unsigned int message_unicode_flags[] =
159 {
160 /* 0x00 - 0x1f */
161 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) | SET(WM_GETTEXTLENGTH) |
162 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
163 /* 0x20 - 0x3f */
164 SET(WM_CHARTOITEM),
165 /* 0x40 - 0x5f */
166 0,
167 /* 0x60 - 0x7f */
168 0,
169 /* 0x80 - 0x9f */
170 SET(WM_NCCREATE),
171 /* 0xa0 - 0xbf */
172 0,
173 /* 0xc0 - 0xdf */
174 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETPASSWORDCHAR),
175 /* 0xe0 - 0xff */
176 0,
177 /* 0x100 - 0x11f */
178 SET(WM_CHAR) | SET(WM_DEADCHAR) | SET(WM_SYSCHAR) | SET(WM_SYSDEADCHAR),
179 /* 0x120 - 0x13f */
180 SET(WM_MENUCHAR),
181 /* 0x140 - 0x15f */
182 SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) | SET(CB_GETLBTEXTLEN) |
183 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) | SET(CB_FINDSTRINGEXACT),
184 /* 0x160 - 0x17f */
185 0,
186 /* 0x180 - 0x19f */
187 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_GETTEXTLEN) |
188 SET(LB_SELECTSTRING) | SET(LB_DIR) | SET(LB_FINDSTRING) | SET(LB_ADDFILE),
189 /* 0x1a0 - 0x1bf */
190 SET(LB_FINDSTRINGEXACT),
191 /* 0x1c0 - 0x1df */
192 0,
193 /* 0x1e0 - 0x1ff */
194 0,
195 /* 0x200 - 0x21f */
196 0,
197 /* 0x220 - 0x23f */
198 SET(WM_MDICREATE),
199 /* 0x240 - 0x25f */
200 0,
201 /* 0x260 - 0x27f */
202 0,
203 /* 0x280 - 0x29f */
204 SET(WM_IME_CHAR),
205 /* 0x2a0 - 0x2bf */
206 0,
207 /* 0x2c0 - 0x2df */
208 0,
209 /* 0x2e0 - 0x2ff */
210 0,
211 /* 0x300 - 0x31f */
212 SET(WM_PAINTCLIPBOARD) | SET(WM_SIZECLIPBOARD) | SET(WM_ASKCBFORMATNAME)
213 };
214
215 /* check whether a given message type includes pointers */
216 inline static int is_pointer_message( UINT message )
217 {
218 if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
219 return (message_pointer_flags[message / 32] & SET(message)) != 0;
220 }
221
222 /* check whether a given message type contains Unicode (or ASCII) chars */
223 inline static int is_unicode_message( UINT message )
224 {
225 if (message >= 8*sizeof(message_unicode_flags)) return FALSE;
226 return (message_unicode_flags[message / 32] & SET(message)) != 0;
227 }
228
229 #undef SET
230
231 /* add a data field to a packed message */
232 inline static void push_data( struct packed_message *data, const void *ptr, size_t size )
233 {
234 data->data[data->count] = ptr;
235 data->size[data->count] = size;
236 data->count++;
237 }
238
239 /* add a string to a packed message */
240 inline static void push_string( struct packed_message *data, LPCWSTR str )
241 {
242 push_data( data, str, (strlenW(str) + 1) * sizeof(WCHAR) );
243 }
244
245 /* retrieve a pointer to data from a packed message and increment the buffer pointer */
246 inline static void *get_data( void **buffer, size_t size )
247 {
248 void *ret = *buffer;
249 *buffer = (char *)*buffer + size;
250 return ret;
251 }
252
253 /* make sure that the buffer contains a valid null-terminated Unicode string */
254 inline static BOOL check_string( LPCWSTR str, size_t size )
255 {
256 for (size /= sizeof(WCHAR); size; size--, str++)
257 if (!*str) return TRUE;
258 return FALSE;
259 }
260
261 /* make sure that there is space for 'size' bytes in buffer, growing it if needed */
262 inline static void *get_buffer_space( void **buffer, size_t size )
263 {
264 void *ret;
265
266 if (*buffer)
267 {
268 if (!(ret = HeapReAlloc( GetProcessHeap(), 0, *buffer, size )))
269 HeapFree( GetProcessHeap(), 0, *buffer );
270 }
271 else ret = HeapAlloc( GetProcessHeap(), 0, size );
272
273 *buffer = ret;
274 return ret;
275 }
276
277 /* retrieve a string pointer from packed data */
278 inline static LPWSTR get_string( void **buffer )
279 {
280 return get_data( buffer, (strlenW( (LPWSTR)*buffer ) + 1) * sizeof(WCHAR) );
281 }
282
283 /* check whether a combobox expects strings or ids in CB_ADDSTRING/CB_INSERTSTRING */
284 inline static BOOL combobox_has_strings( HWND hwnd )
285 {
286 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
287 return (!(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) || (style & CBS_HASSTRINGS));
288 }
289
290 /* check whether a listbox expects strings or ids in LB_ADDSTRING/LB_INSERTSTRING */
291 inline static BOOL listbox_has_strings( HWND hwnd )
292 {
293 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
294 return (!(style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE)) || (style & LBS_HASSTRINGS));
295 }
296
297 /* check whether message is in the range of keyboard messages */
298 inline static BOOL is_keyboard_message( UINT message )
299 {
300 return (message >= WM_KEYFIRST && message <= WM_KEYLAST);
301 }
302
303 /* check whether message is in the range of mouse messages */
304 inline static BOOL is_mouse_message( UINT message )
305 {
306 return ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) ||
307 (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST));
308 }
309
310 /* check whether message matches the specified hwnd filter */
311 inline static BOOL check_hwnd_filter( const MSG *msg, HWND hwnd_filter )
312 {
313 if (!hwnd_filter) return TRUE;
314 return (msg->hwnd == hwnd_filter || IsChild( hwnd_filter, msg->hwnd ));
315 }
316
317
318 /***********************************************************************
319 * broadcast_message_callback
320 *
321 * Helper callback for broadcasting messages.
322 */
323 static BOOL CALLBACK broadcast_message_callback( HWND hwnd, LPARAM lparam )
324 {
325 struct send_message_info *info = (struct send_message_info *)lparam;
326 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & (WS_POPUP|WS_CAPTION))) return TRUE;
327 switch(info->type)
328 {
329 case MSG_UNICODE:
330 SendMessageTimeoutW( hwnd, info->msg, info->wparam, info->lparam,
331 info->flags, info->timeout, NULL );
332 break;
333 case MSG_ASCII:
334 SendMessageTimeoutA( hwnd, info->msg, info->wparam, info->lparam,
335 info->flags, info->timeout, NULL );
336 break;
337 case MSG_NOTIFY:
338 SendNotifyMessageW( hwnd, info->msg, info->wparam, info->lparam );
339 break;
340 case MSG_CALLBACK:
341 SendMessageCallbackW( hwnd, info->msg, info->wparam, info->lparam,
342 info->callback, info->data );
343 break;
344 case MSG_POSTED:
345 PostMessageW( hwnd, info->msg, info->wparam, info->lparam );
346 break;
347 default:
348 ERR( "bad type %d\n", info->type );
349 break;
350 }
351 return TRUE;
352 }
353
354
355 /***********************************************************************
356 * map_wparam_AtoW
357 *
358 * Convert the wparam of an ASCII message to Unicode.
359 */
360 static WPARAM map_wparam_AtoW( UINT message, WPARAM wparam )
361 {
362 switch(message)
363 {
364 case WM_CHARTOITEM:
365 case EM_SETPASSWORDCHAR:
366 case WM_CHAR:
367 case WM_DEADCHAR:
368 case WM_SYSCHAR:
369 case WM_SYSDEADCHAR:
370 case WM_MENUCHAR:
371 {
372 char ch[2];
373 WCHAR wch[2];
374 ch[0] = (wparam & 0xff);
375 ch[1] = (wparam >> 8);
376 MultiByteToWideChar(CP_ACP, 0, ch, 2, wch, 2);
377 wparam = MAKEWPARAM(wch[0], wch[1]);
378 }
379 break;
380 case WM_IME_CHAR:
381 {
382 char ch[2];
383 WCHAR wch;
384 ch[0] = (wparam >> 8);
385 ch[1] = (wparam & 0xff);
386 if (ch[0]) MultiByteToWideChar(CP_ACP, 0, ch, 2, &wch, 1);
387 else MultiByteToWideChar(CP_ACP, 0, &ch[1], 1, &wch, 1);
388 wparam = MAKEWPARAM( wch, HIWORD(wparam) );
389 }
390 break;
391 }
392 return wparam;
393 }
394
395
396 /***********************************************************************
397 * map_wparam_WtoA
398 *
399 * Convert the wparam of a Unicode message to ASCII.
400 */
401 static WPARAM map_wparam_WtoA( UINT message, WPARAM wparam )
402 {
403 switch(message)
404 {
405 case WM_CHARTOITEM:
406 case EM_SETPASSWORDCHAR:
407 case WM_CHAR:
408 case WM_DEADCHAR:
409 case WM_SYSCHAR:
410 case WM_SYSDEADCHAR:
411 case WM_MENUCHAR:
412 {
413 WCHAR wch[2];
414 BYTE ch[2];
415 wch[0] = LOWORD(wparam);
416 wch[1] = HIWORD(wparam);
417 WideCharToMultiByte( CP_ACP, 0, wch, 2, (LPSTR)ch, 2, NULL, NULL );
418 wparam = MAKEWPARAM( ch[0] | (ch[1] << 8), 0 );
419 }
420 break;
421 case WM_IME_CHAR:
422 {
423 WCHAR wch = LOWORD(wparam);
424 BYTE ch[2];
425
426 if (WideCharToMultiByte( CP_ACP, 0, &wch, 1, (LPSTR)ch, 2, NULL, NULL ) == 2)
427 wparam = MAKEWPARAM( (ch[0] << 8) | ch[1], HIWORD(wparam) );
428 else
429 wparam = MAKEWPARAM( ch[0], HIWORD(wparam) );
430 }
431 break;
432 }
433 return wparam;
434 }
435
436
437 /***********************************************************************
438 * pack_message
439 *
440 * Pack a message for sending to another process.
441 * Return the size of the data we expect in the message reply.
442 * Set data->count to -1 if there is an error.
443 */
444 static size_t pack_message( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
445 struct packed_message *data )
446 {
447 data->count = 0;
448 switch(message)
449 {
450 case WM_NCCREATE:
451 case WM_CREATE:
452 {
453 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
454 push_data( data, cs, sizeof(*cs) );
455 if (HIWORD(cs->lpszName)) push_string( data, cs->lpszName );
456 if (HIWORD(cs->lpszClass)) push_string( data, cs->lpszClass );
457 return sizeof(*cs);
458 }
459 case WM_GETTEXT:
460 case WM_ASKCBFORMATNAME:
461 return wparam * sizeof(WCHAR);
462 case WM_WININICHANGE:
463 if (lparam) push_string(data, (LPWSTR)lparam );
464 return 0;
465 case WM_SETTEXT:
466 case WM_DEVMODECHANGE:
467 case CB_DIR:
468 case LB_DIR:
469 case LB_ADDFILE:
470 case EM_REPLACESEL:
471 push_string( data, (LPWSTR)lparam );
472 return 0;
473 case WM_GETMINMAXINFO:
474 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
475 return sizeof(MINMAXINFO);
476 case WM_DRAWITEM:
477 push_data( data, (DRAWITEMSTRUCT *)lparam, sizeof(DRAWITEMSTRUCT) );
478 return 0;
479 case WM_MEASUREITEM:
480 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
481 return sizeof(MEASUREITEMSTRUCT);
482 case WM_DELETEITEM:
483 push_data( data, (DELETEITEMSTRUCT *)lparam, sizeof(DELETEITEMSTRUCT) );
484 return 0;
485 case WM_COMPAREITEM:
486 push_data( data, (COMPAREITEMSTRUCT *)lparam, sizeof(COMPAREITEMSTRUCT) );
487 return 0;
488 case WM_WINDOWPOSCHANGING:
489 case WM_WINDOWPOSCHANGED:
490 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
491 return sizeof(WINDOWPOS);
492 case WM_COPYDATA:
493 {
494 COPYDATASTRUCT *cp = (COPYDATASTRUCT *)lparam;
495 push_data( data, cp, sizeof(*cp) );
496 if (cp->lpData) push_data( data, cp->lpData, cp->cbData );
497 return 0;
498 }
499 case WM_NOTIFY:
500 /* WM_NOTIFY cannot be sent across processes (MSDN) */
501 data->count = -1;
502 return 0;
503 case WM_HELP:
504 push_data( data, (HELPINFO *)lparam, sizeof(HELPINFO) );
505 return 0;
506 case WM_STYLECHANGING:
507 case WM_STYLECHANGED:
508 push_data( data, (STYLESTRUCT *)lparam, sizeof(STYLESTRUCT) );
509 return 0;
510 case WM_NCCALCSIZE:
511 if (!wparam)
512 {
513 push_data( data, (RECT *)lparam, sizeof(RECT) );
514 return sizeof(RECT);
515 }
516 else
517 {
518 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
519 push_data( data, nc, sizeof(*nc) );
520 push_data( data, nc->lppos, sizeof(*nc->lppos) );
521 return sizeof(*nc) + sizeof(*nc->lppos);
522 }
523 case WM_GETDLGCODE:
524 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
525 return sizeof(MSG);
526 case SBM_SETSCROLLINFO:
527 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
528 return 0;
529 case SBM_GETSCROLLINFO:
530 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
531 return sizeof(SCROLLINFO);
532 case SBM_GETSCROLLBARINFO:
533 {
534 const SCROLLBARINFO *info = (const SCROLLBARINFO *)lparam;
535 size_t size = min( info->cbSize, sizeof(SCROLLBARINFO) );
536 push_data( data, info, size );
537 return size;
538 }
539 case EM_GETSEL:
540 case SBM_GETRANGE:
541 case CB_GETEDITSEL:
542 {
543 size_t size = 0;
544 if (wparam) size += sizeof(DWORD);
545 if (lparam) size += sizeof(DWORD);
546 return size;
547 }
548 case EM_GETRECT:
549 case LB_GETITEMRECT:
550 case CB_GETDROPPEDCONTROLRECT:
551 return sizeof(RECT);
552 case EM_SETRECT:
553 case EM_SETRECTNP:
554 push_data( data, (RECT *)lparam, sizeof(RECT) );
555 return 0;
556 case EM_GETLINE:
557 {
558 WORD *pw = (WORD *)lparam;
559 push_data( data, pw, sizeof(*pw) );
560 return *pw * sizeof(WCHAR);
561 }
562 case EM_SETTABSTOPS:
563 case LB_SETTABSTOPS:
564 if (wparam) push_data( data, (UINT *)lparam, sizeof(UINT) * wparam );
565 return 0;
566 case CB_ADDSTRING:
567 case CB_INSERTSTRING:
568 case CB_FINDSTRING:
569 case CB_FINDSTRINGEXACT:
570 case CB_SELECTSTRING:
571 if (combobox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
572 return 0;
573 case CB_GETLBTEXT:
574 if (!combobox_has_strings( hwnd )) return sizeof(ULONG_PTR);
575 return (SendMessageW( hwnd, CB_GETLBTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
576 case LB_ADDSTRING:
577 case LB_INSERTSTRING:
578 case LB_FINDSTRING:
579 case LB_FINDSTRINGEXACT:
580 case LB_SELECTSTRING:
581 if (listbox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
582 return 0;
583 case LB_GETTEXT:
584 if (!listbox_has_strings( hwnd )) return sizeof(ULONG_PTR);
585 return (SendMessageW( hwnd, LB_GETTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
586 case LB_GETSELITEMS:
587 return wparam * sizeof(UINT);
588 case WM_NEXTMENU:
589 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
590 return sizeof(MDINEXTMENU);
591 case WM_SIZING:
592 case WM_MOVING:
593 push_data( data, (RECT *)lparam, sizeof(RECT) );
594 return sizeof(RECT);
595 case WM_MDICREATE:
596 {
597 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
598 push_data( data, cs, sizeof(*cs) );
599 if (HIWORD(cs->szTitle)) push_string( data, cs->szTitle );
600 if (HIWORD(cs->szClass)) push_string( data, cs->szClass );
601 return sizeof(*cs);
602 }
603 case WM_MDIGETACTIVE:
604 if (lparam) return sizeof(BOOL);
605 return 0;
606 case WM_WINE_SETWINDOWPOS:
607 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
608 return 0;
609 case WM_WINE_KEYBOARD_LL_HOOK:
610 push_data( data, (KBDLLHOOKSTRUCT *)lparam, sizeof(KBDLLHOOKSTRUCT) );
611 return 0;
612 case WM_WINE_MOUSE_LL_HOOK:
613 push_data( data, (MSLLHOOKSTRUCT *)lparam, sizeof(MSLLHOOKSTRUCT) );
614 return 0;
615 case WM_PAINT:
616 if (!wparam) return 0;
617 /* fall through */
618
619 /* these contain an HFONT */
620 case WM_SETFONT:
621 case WM_GETFONT:
622 /* these contain an HDC */
623 case WM_ERASEBKGND:
624 case WM_ICONERASEBKGND:
625 case WM_NCPAINT:
626 case WM_CTLCOLORMSGBOX:
627 case WM_CTLCOLOREDIT:
628 case WM_CTLCOLORLISTBOX:
629 case WM_CTLCOLORBTN:
630 case WM_CTLCOLORDLG:
631 case WM_CTLCOLORSCROLLBAR:
632 case WM_CTLCOLORSTATIC:
633 case WM_PRINT:
634 case WM_PRINTCLIENT:
635 /* these contain an HGLOBAL */
636 case WM_PAINTCLIPBOARD:
637 case WM_SIZECLIPBOARD:
638 /* these contain HICON */
639 case WM_GETICON:
640 case WM_SETICON:
641 case WM_QUERYDRAGICON:
642 case WM_QUERYPARKICON:
643 /* these contain pointers */
644 case WM_DROPOBJECT:
645 case WM_QUERYDROPOBJECT:
646 case WM_DRAGLOOP:
647 case WM_DRAGSELECT:
648 case WM_DRAGMOVE:
649 case WM_DEVICECHANGE:
650 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
651 data->count = -1;
652 return 0;
653 }
654 return 0;
655 }
656
657
658 /***********************************************************************
659 * unpack_message
660 *
661 * Unpack a message received from another process.
662 */
663 static BOOL unpack_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
664 void **buffer, size_t size )
665 {
666 size_t minsize = 0;
667
668 switch(message)
669 {
670 case WM_NCCREATE:
671 case WM_CREATE:
672 {
673 CREATESTRUCTW *cs = *buffer;
674 WCHAR *str = (WCHAR *)(cs + 1);
675 if (size < sizeof(*cs)) return FALSE;
676 size -= sizeof(*cs);
677 if (HIWORD(cs->lpszName))
678 {
679 if (!check_string( str, size )) return FALSE;
680 cs->lpszName = str;
681 size -= (strlenW(str) + 1) * sizeof(WCHAR);
682 str += strlenW(str) + 1;
683 }
684 if (HIWORD(cs->lpszClass))
685 {
686 if (!check_string( str, size )) return FALSE;
687 cs->lpszClass = str;
688 }
689 break;
690 }
691 case WM_GETTEXT:
692 case WM_ASKCBFORMATNAME:
693 if (!get_buffer_space( buffer, (*wparam * sizeof(WCHAR)) )) return FALSE;
694 break;
695 case WM_WININICHANGE:
696 if (!*lparam) return TRUE;
697 /* fall through */
698 case WM_SETTEXT:
699 case WM_DEVMODECHANGE:
700 case CB_DIR:
701 case LB_DIR:
702 case LB_ADDFILE:
703 case EM_REPLACESEL:
704 if (!check_string( *buffer, size )) return FALSE;
705 break;
706 case WM_GETMINMAXINFO:
707 minsize = sizeof(MINMAXINFO);
708 break;
709 case WM_DRAWITEM:
710 minsize = sizeof(DRAWITEMSTRUCT);
711 break;
712 case WM_MEASUREITEM:
713 minsize = sizeof(MEASUREITEMSTRUCT);
714 break;
715 case WM_DELETEITEM:
716 minsize = sizeof(DELETEITEMSTRUCT);
717 break;
718 case WM_COMPAREITEM:
719 minsize = sizeof(COMPAREITEMSTRUCT);
720 break;
721 case WM_WINDOWPOSCHANGING:
722 case WM_WINDOWPOSCHANGED:
723 case WM_WINE_SETWINDOWPOS:
724 minsize = sizeof(WINDOWPOS);
725 break;
726 case WM_COPYDATA:
727 {
728 COPYDATASTRUCT *cp = *buffer;
729 if (size < sizeof(*cp)) return FALSE;
730 if (cp->lpData)
731 {
732 minsize = sizeof(*cp) + cp->cbData;
733 cp->lpData = cp + 1;
734 }
735 break;
736 }
737 case WM_NOTIFY:
738 /* WM_NOTIFY cannot be sent across processes (MSDN) */
739 return FALSE;
740 case WM_HELP:
741 minsize = sizeof(HELPINFO);
742 break;
743 case WM_STYLECHANGING:
744 case WM_STYLECHANGED:
745 minsize = sizeof(STYLESTRUCT);
746 break;
747 case WM_NCCALCSIZE:
748 if (!*wparam) minsize = sizeof(RECT);
749 else
750 {
751 NCCALCSIZE_PARAMS *nc = *buffer;
752 if (size < sizeof(*nc) + sizeof(*nc->lppos)) return FALSE;
753 nc->lppos = (WINDOWPOS *)(nc + 1);
754 }
755 break;
756 case WM_GETDLGCODE:
757 if (!*lparam) return TRUE;
758 minsize = sizeof(MSG);
759 break;
760 case SBM_SETSCROLLINFO:
761 minsize = sizeof(SCROLLINFO);
762 break;
763 case SBM_GETSCROLLINFO:
764 if (!get_buffer_space( buffer, sizeof(SCROLLINFO ))) return FALSE;
765 break;
766 case SBM_GETSCROLLBARINFO:
767 if (!get_buffer_space( buffer, sizeof(SCROLLBARINFO ))) return FALSE;
768 break;
769 case EM_GETSEL:
770 case SBM_GETRANGE:
771 case CB_GETEDITSEL:
772 if (*wparam || *lparam)
773 {
774 if (!get_buffer_space( buffer, 2*sizeof(DWORD) )) return FALSE;
775 if (*wparam) *wparam = (WPARAM)*buffer;
776 if (*lparam) *lparam = (LPARAM)((DWORD *)*buffer + 1);
777 }
778 return TRUE;
779 case EM_GETRECT:
780 case LB_GETITEMRECT:
781 case CB_GETDROPPEDCONTROLRECT:
782 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
783 break;
784 case EM_SETRECT:
785 case EM_SETRECTNP:
786 minsize = sizeof(RECT);
787 break;
788 case EM_GETLINE:
789 {
790 WORD len;
791 if (size < sizeof(WORD)) return FALSE;
792 len = *(WORD *)*buffer;
793 if (!get_buffer_space( buffer, (len + 1) * sizeof(WCHAR) )) return FALSE;
794 *lparam = (LPARAM)*buffer + sizeof(WORD); /* don't erase WORD at start of buffer */
795 return TRUE;
796 }
797 case EM_SETTABSTOPS:
798 case LB_SETTABSTOPS:
799 if (!*wparam) return TRUE;
800 minsize = *wparam * sizeof(UINT);
801 break;
802 case CB_ADDSTRING:
803 case CB_INSERTSTRING:
804 case CB_FINDSTRING:
805 case CB_FINDSTRINGEXACT:
806 case CB_SELECTSTRING:
807 case LB_ADDSTRING:
808 case LB_INSERTSTRING:
809 case LB_FINDSTRING:
810 case LB_FINDSTRINGEXACT:
811 case LB_SELECTSTRING:
812 if (!*buffer) return TRUE;
813 if (!check_string( *buffer, size )) return FALSE;
814 break;
815 case CB_GETLBTEXT:
816 {
817 size = sizeof(ULONG_PTR);
818 if (combobox_has_strings( hwnd ))
819 size = (SendMessageW( hwnd, CB_GETLBTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
820 if (!get_buffer_space( buffer, size )) return FALSE;
821 break;
822 }
823 case LB_GETTEXT:
824 {
825 size = sizeof(ULONG_PTR);
826 if (listbox_has_strings( hwnd ))
827 size = (SendMessageW( hwnd, LB_GETTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
828 if (!get_buffer_space( buffer, size )) return FALSE;
829 break;
830 }
831 case LB_GETSELITEMS:
832 if (!get_buffer_space( buffer, *wparam * sizeof(UINT) )) return FALSE;
833 break;
834 case WM_NEXTMENU:
835 minsize = sizeof(MDINEXTMENU);
836 if (!get_buffer_space( buffer, sizeof(MDINEXTMENU) )) return FALSE;
837 break;
838 case WM_SIZING:
839 case WM_MOVING:
840 minsize = sizeof(RECT);
841 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
842 break;
843 case WM_MDICREATE:
844 {
845 MDICREATESTRUCTW *cs = *buffer;
846 WCHAR *str = (WCHAR *)(cs + 1);
847 if (size < sizeof(*cs)) return FALSE;
848 size -= sizeof(*cs);
849 if (HIWORD(cs->szTitle))
850 {
851 if (!check_string( str, size )) return FALSE;
852 cs->szTitle = str;
853 size -= (strlenW(str) + 1) * sizeof(WCHAR);
854 str += strlenW(str) + 1;
855 }
856 if (HIWORD(cs->szClass))
857 {
858 if (!check_string( str, size )) return FALSE;
859 cs->szClass = str;
860 }
861 break;
862 }
863 case WM_MDIGETACTIVE:
864 if (!*lparam) return TRUE;
865 if (!get_buffer_space( buffer, sizeof(BOOL) )) return FALSE;
866 break;
867 case WM_WINE_KEYBOARD_LL_HOOK:
868 minsize = sizeof(KBDLLHOOKSTRUCT);
869 break;
870 case WM_WINE_MOUSE_LL_HOOK:
871 minsize = sizeof(MSLLHOOKSTRUCT);
872 break;
873 case WM_PAINT:
874 if (!*wparam) return TRUE;
875 /* fall through */
876
877 /* these contain an HFONT */
878 case WM_SETFONT:
879 case WM_GETFONT:
880 /* these contain an HDC */
881 case WM_ERASEBKGND:
882 case WM_ICONERASEBKGND:
883 case WM_NCPAINT:
884 case WM_CTLCOLORMSGBOX:
885 case WM_CTLCOLOREDIT:
886 case WM_CTLCOLORLISTBOX:
887 case WM_CTLCOLORBTN:
888 case WM_CTLCOLORDLG:
889 case WM_CTLCOLORSCROLLBAR:
890 case WM_CTLCOLORSTATIC:
891 case WM_PRINT:
892 case WM_PRINTCLIENT:
893 /* these contain an HGLOBAL */
894 case WM_PAINTCLIPBOARD:
895 case WM_SIZECLIPBOARD:
896 /* these contain HICON */
897 case WM_GETICON:
898 case WM_SETICON:
899 case WM_QUERYDRAGICON:
900 case WM_QUERYPARKICON:
901 /* these contain pointers */
902 case WM_DROPOBJECT:
903 case WM_QUERYDROPOBJECT:
904 case WM_DRAGLOOP:
905 case WM_DRAGSELECT:
906 case WM_DRAGMOVE:
907 case WM_DEVICECHANGE:
908 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
909 return FALSE;
910
911 default:
912 return TRUE; /* message doesn't need any unpacking */
913 }
914
915 /* default exit for most messages: check minsize and store buffer in lparam */
916 if (size < minsize) return FALSE;
917 *lparam = (LPARAM)*buffer;
918 return TRUE;
919 }
920
921
922 /***********************************************************************
923 * pack_reply
924 *
925 * Pack a reply to a message for sending to another process.
926 */
927 static void pack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
928 LRESULT res, struct packed_message *data )
929 {
930 data->count = 0;
931 switch(message)
932 {
933 case WM_NCCREATE:
934 case WM_CREATE:
935 push_data( data, (CREATESTRUCTW *)lparam, sizeof(CREATESTRUCTW) );
936 break;
937 case WM_GETTEXT:
938 case CB_GETLBTEXT:
939 case LB_GETTEXT:
940 push_data( data, (WCHAR *)lparam, (res + 1) * sizeof(WCHAR) );
941 break;
942 case WM_GETMINMAXINFO:
943 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
944 break;
945 case WM_MEASUREITEM:
946 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
947 break;
948 case WM_WINDOWPOSCHANGING:
949 case WM_WINDOWPOSCHANGED:
950 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
951 break;
952 case WM_GETDLGCODE:
953 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
954 break;
955 case SBM_GETSCROLLINFO:
956 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
957 break;
958 case EM_GETRECT:
959 case LB_GETITEMRECT:
960 case CB_GETDROPPEDCONTROLRECT:
961 case WM_SIZING:
962 case WM_MOVING:
963 push_data( data, (RECT *)lparam, sizeof(RECT) );
964 break;
965 case EM_GETLINE:
966 {
967 WORD *ptr = (WORD *)lparam;
968 push_data( data, ptr, ptr[-1] * sizeof(WCHAR) );
969 break;
970 }
971 case LB_GETSELITEMS:
972 push_data( data, (UINT *)lparam, wparam * sizeof(UINT) );
973 break;
974 case WM_MDIGETACTIVE:
975 if (lparam) push_data( data, (BOOL *)lparam, sizeof(BOOL) );
976 break;
977 case WM_NCCALCSIZE:
978 if (!wparam)
979 push_data( data, (RECT *)lparam, sizeof(RECT) );
980 else
981 {
982 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
983 push_data( data, nc, sizeof(*nc) );
984 push_data( data, nc->lppos, sizeof(*nc->lppos) );
985 }
986 break;
987 case EM_GETSEL:
988 case SBM_GETRANGE:
989 case CB_GETEDITSEL:
990 if (wparam) push_data( data, (DWORD *)wparam, sizeof(DWORD) );
991 if (lparam) push_data( data, (DWORD *)lparam, sizeof(DWORD) );
992 break;
993 case WM_NEXTMENU:
994 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
995 break;
996 case WM_MDICREATE:
997 push_data( data, (MDICREATESTRUCTW *)lparam, sizeof(MDICREATESTRUCTW) );
998 break;
999 case WM_ASKCBFORMATNAME:
1000 push_data( data, (WCHAR *)lparam, (strlenW((WCHAR *)lparam) + 1) * sizeof(WCHAR) );
1001 break;
1002 }
1003 }
1004
1005
1006 /***********************************************************************
1007 * unpack_reply
1008 *
1009 * Unpack a message reply received from another process.
1010 */
1011 static void unpack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1012 void *buffer, size_t size )
1013 {
1014 switch(message)
1015 {
1016 case WM_NCCREATE:
1017 case WM_CREATE:
1018 {
1019 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
1020 LPCWSTR name = cs->lpszName, class = cs->lpszClass;
1021 memcpy( cs, buffer, min( sizeof(*cs), size ));
1022 cs->lpszName = name; /* restore the original pointers */
1023 cs->lpszClass = class;
1024 break;
1025 }
1026 case WM_GETTEXT:
1027 case WM_ASKCBFORMATNAME:
1028 memcpy( (WCHAR *)lparam, buffer, min( wparam*sizeof(WCHAR), size ));
1029 break;
1030 case WM_GETMINMAXINFO:
1031 memcpy( (MINMAXINFO *)lparam, buffer, min( sizeof(MINMAXINFO), size ));
1032 break;
1033 case WM_MEASUREITEM:
1034 memcpy( (MEASUREITEMSTRUCT *)lparam, buffer, min( sizeof(MEASUREITEMSTRUCT), size ));
1035 break;
1036 case WM_WINDOWPOSCHANGING:
1037 case WM_WINDOWPOSCHANGED:
1038 memcpy( (WINDOWPOS *)lparam, buffer, min( sizeof(WINDOWPOS), size ));
1039 break;
1040 case WM_GETDLGCODE:
1041 if (lparam) memcpy( (MSG *)lparam, buffer, min( sizeof(MSG), size ));
1042 break;
1043 case SBM_GETSCROLLINFO:
1044 memcpy( (SCROLLINFO *)lparam, buffer, min( sizeof(SCROLLINFO), size ));
1045 break;
1046 case SBM_GETSCROLLBARINFO:
1047 memcpy( (SCROLLBARINFO *)lparam, buffer, min( sizeof(SCROLLBARINFO), size ));
1048 break;
1049 case EM_GETRECT:
1050 case CB_GETDROPPEDCONTROLRECT:
1051 case LB_GETITEMRECT:
1052 case WM_SIZING:
1053 case WM_MOVING:
1054 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1055 break;
1056 case EM_GETLINE:
1057 size = min( size, (size_t)*(WORD *)lparam );
1058 memcpy( (WCHAR *)lparam, buffer, size );
1059 break;
1060 case LB_GETSELITEMS:
1061 memcpy( (UINT *)lparam, buffer, min( wparam*sizeof(UINT), size ));
1062 break;
1063 case LB_GETTEXT:
1064 case CB_GETLBTEXT:
1065 memcpy( (WCHAR *)lparam, buffer, size );
1066 break;
1067 case WM_NEXTMENU:
1068 memcpy( (MDINEXTMENU *)lparam, buffer, min( sizeof(MDINEXTMENU), size ));
1069 break;
1070 case WM_MDIGETACTIVE:
1071 if (lparam) memcpy( (BOOL *)lparam, buffer, min( sizeof(BOOL), size ));
1072 break;
1073 case WM_NCCALCSIZE:
1074 if (!wparam)
1075 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1076 else
1077 {
1078 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1079 WINDOWPOS *wp = nc->lppos;
1080 memcpy( nc, buffer, min( sizeof(*nc), size ));
1081 if (size > sizeof(*nc))
1082 {
1083 size -= sizeof(*nc);
1084 memcpy( wp, (NCCALCSIZE_PARAMS*)buffer + 1, min( sizeof(*wp), size ));
1085 }
1086 nc->lppos = wp; /* restore the original pointer */
1087 }
1088 break;
1089 case EM_GETSEL:
1090 case SBM_GETRANGE:
1091 case CB_GETEDITSEL:
1092 if (wparam)
1093 {
1094 memcpy( (DWORD *)wparam, buffer, min( sizeof(DWORD), size ));
1095 if (size <= sizeof(DWORD)) break;
1096 size -= sizeof(DWORD);
1097 buffer = (DWORD *)buffer + 1;
1098 }
1099 if (lparam) memcpy( (DWORD *)lparam, buffer, min( sizeof(DWORD), size ));
1100 break;
1101 case WM_MDICREATE:
1102 {
1103 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
1104 LPCWSTR title = cs->szTitle, class = cs->szClass;
1105 memcpy( cs, buffer, min( sizeof(*cs), size ));
1106 cs->szTitle = title; /* restore the original pointers */
1107 cs->szClass = class;
1108 break;
1109 }
1110 default:
1111 ERR( "should not happen: unexpected message %x\n", message );
1112 break;
1113 }
1114 }
1115
1116
1117 /***********************************************************************
1118 * reply_message
1119 *
1120 * Send a reply to a sent message.
1121 */
1122 static void reply_message( struct received_message_info *info, LRESULT result, BOOL remove )
1123 {
1124 struct packed_message data;
1125 int i, replied = info->flags & ISMEX_REPLIED;
1126
1127 if (info->flags & ISMEX_NOTIFY) return; /* notify messages don't get replies */
1128 if (!remove && replied) return; /* replied already */
1129
1130 data.count = 0;
1131 info->flags |= ISMEX_REPLIED;
1132
1133 if (info->type == MSG_OTHER_PROCESS && !replied)
1134 {
1135 pack_reply( info->msg.hwnd, info->msg.message, info->msg.wParam,
1136 info->msg.lParam, result, &data );
1137 }
1138
1139 SERVER_START_REQ( reply_message )
1140 {
1141 req->result = result;
1142 req->remove = remove;
1143 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
1144 wine_server_call( req );
1145 }
1146 SERVER_END_REQ;
1147 }
1148
1149
1150 /***********************************************************************
1151 * handle_internal_message
1152 *
1153 * Handle an internal Wine message instead of calling the window proc.
1154 */
1155 static LRESULT handle_internal_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
1156 {
1157 if (hwnd == GetDesktopWindow()) return 0;
1158 switch(msg)
1159 {
1160 case WM_WINE_DESTROYWINDOW:
1161 return WIN_DestroyWindow( hwnd );
1162 case WM_WINE_SETWINDOWPOS:
1163 return USER_Driver->pSetWindowPos( (WINDOWPOS *)lparam );
1164 case WM_WINE_SHOWWINDOW:
1165 return ShowWindow( hwnd, wparam );
1166 case WM_WINE_SETPARENT:
1167 return (LRESULT)SetParent( hwnd, (HWND)wparam );
1168 case WM_WINE_SETWINDOWLONG:
1169 return (LRESULT)SetWindowLongW( hwnd, wparam, lparam );
1170 case WM_WINE_ENABLEWINDOW:
1171 return EnableWindow( hwnd, wparam );
1172 case WM_WINE_SETACTIVEWINDOW:
1173 return (LRESULT)SetActiveWindow( (HWND)wparam );
1174 case WM_WINE_KEYBOARD_LL_HOOK:
1175 return HOOK_CallHooks( WH_KEYBOARD_LL, HC_ACTION, wparam, lparam, TRUE );
1176 case WM_WINE_MOUSE_LL_HOOK:
1177 return HOOK_CallHooks( WH_MOUSE_LL, HC_ACTION, wparam, lparam, TRUE );
1178 default:
1179 if (msg >= WM_WINE_FIRST_DRIVER_MSG && msg <= WM_WINE_LAST_DRIVER_MSG)
1180 return USER_Driver->pWindowMessage( hwnd, msg, wparam, lparam );
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, { (DWORD_PTR)(__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_PTR 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 => %p\n", uiLo, uiHi, 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 = 0;
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_PTR 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_PTR)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_PTR)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 GetGUIThreadInfo( GetCurrentThreadId(), &info );
1658 if (info.hwndCapture)
1659 {
1660 hittest = HTCLIENT;
1661 msg->hwnd = info.hwndCapture;
1662 }
1663 else
1664 {
1665 msg->hwnd = WINPOS_WindowFromPoint( msg->hwnd, msg->pt, &hittest );
1666 }
1667
1668 if (!msg->hwnd || !WIN_IsCurrentThread( msg->hwnd ))
1669 {
1670 accept_hardware_message( hw_id, TRUE, msg->hwnd );
1671 return FALSE;
1672 }
1673
1674 /* FIXME: is this really the right place for this hook? */
1675 event.message = msg->message;
1676 event.time = msg->time;
1677 event.hwnd = msg->hwnd;
1678 event.paramL = msg->pt.x;
1679 event.paramH = msg->pt.y;
1680 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1681
1682 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1683
1684 pt = msg->pt;
1685 message = msg->message;
1686 /* Note: windows has no concept of a non-client wheel message */
1687 if (message != WM_MOUSEWHEEL)
1688 {
1689 if (hittest != HTCLIENT)
1690 {
1691 message += WM_NCMOUSEMOVE - WM_MOUSEMOVE;
1692 msg->wParam = hittest;
1693 }
1694 else
1695 {
1696 /* coordinates don't get translated while tracking a menu */
1697 /* FIXME: should differentiate popups and top-level menus */
1698 if (!(info.flags & GUI_INMENUMODE))
1699 ScreenToClient( msg->hwnd, &pt );
1700 }
1701 }
1702 msg->lParam = MAKELONG( pt.x, pt.y );
1703
1704 /* translate double clicks */
1705
1706 if ((msg->message == WM_LBUTTONDOWN) ||
1707 (msg->message == WM_RBUTTONDOWN) ||
1708 (msg->message == WM_MBUTTONDOWN) ||
1709 (msg->message == WM_XBUTTONDOWN))
1710 {
1711 BOOL update = remove;
1712
1713 /* translate double clicks -
1714 * note that ...MOUSEMOVEs can slip in between
1715 * ...BUTTONDOWN and ...BUTTONDBLCLK messages */
1716
1717 if ((info.flags & (GUI_INMENUMODE|GUI_INMOVESIZE)) ||
1718 hittest != HTCLIENT ||
1719 (GetClassLongA( msg->hwnd, GCL_STYLE ) & CS_DBLCLKS))
1720 {
1721 if ((msg->message == clk_msg.message) &&
1722 (msg->hwnd == clk_msg.hwnd) &&
1723 (msg->wParam == clk_msg.wParam) &&
1724 (msg->time - clk_msg.time < GetDoubleClickTime()) &&
1725 (abs(msg->pt.x - clk_msg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
1726 (abs(msg->pt.y - clk_msg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
1727 {
1728 message += (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
1729 if (update)
1730 {
1731 clk_msg.message = 0; /* clear the double click conditions */
1732 update = FALSE;
1733 }
1734 }
1735 }
1736 if (message < first || message > last) return FALSE;
1737 /* update static double click conditions */
1738 if (update) clk_msg = *msg;
1739 }
1740 else
1741 {
1742 if (message < first || message > last) return FALSE;
1743 }
1744
1745 /* message is accepted now (but may still get dropped) */
1746
1747 hook.pt = msg->pt;
1748 hook.hwnd = msg->hwnd;
1749 hook.wHitTestCode = hittest;
1750 hook.dwExtraInfo = extra_info;
1751 if (HOOK_CallHooks( WH_MOUSE, remove ? HC_ACTION : HC_NOREMOVE,
1752 message, (LPARAM)&hook, TRUE ))
1753 {
1754 hook.pt = msg->pt;
1755 hook.hwnd = msg->hwnd;
1756 hook.wHitTestCode = hittest;
1757 hook.dwExtraInfo = extra_info;
1758 HOOK_CallHooks( WH_CBT, HCBT_CLICKSKIPPED, message, (LPARAM)&hook, TRUE );
1759 accept_hardware_message( hw_id, TRUE, 0 );
1760 return FALSE;
1761 }
1762
1763 if ((hittest == HTERROR) || (hittest == HTNOWHERE))
1764 {
1765 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd,
1766 MAKELONG( hittest, msg->message ));
1767 accept_hardware_message( hw_id, TRUE, 0 );
1768 return FALSE;
1769 }
1770
1771 accept_hardware_message( hw_id, remove, 0 );
1772
1773 if (!remove || info.hwndCapture)
1774 {
1775 msg->message = message;
1776 return TRUE;
1777 }
1778
1779 eatMsg = FALSE;
1780
1781 if ((msg->message == WM_LBUTTONDOWN) ||
1782 (msg->message == WM_RBUTTONDOWN) ||
1783 (msg->message == WM_MBUTTONDOWN) ||
1784 (msg->message == WM_XBUTTONDOWN))
1785 {
1786 /* Send the WM_PARENTNOTIFY,
1787 * note that even for double/nonclient clicks
1788 * notification message is still WM_L/M/RBUTTONDOWN.
1789 */
1790 send_parent_notify( msg->hwnd, msg->message, 0, msg->pt );
1791
1792 /* Activate the window if needed */
1793
1794 if (msg->hwnd != info.hwndActive)
1795 {
1796 HWND hwndTop = msg->hwnd;
1797 while (hwndTop)
1798 {
1799 if ((GetWindowLongW( hwndTop, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) != WS_CHILD) break;
1800 hwndTop = GetParent( hwndTop );
1801 }
1802
1803 if (hwndTop && hwndTop != GetDesktopWindow())
1804 {
1805 LONG ret = SendMessageW( msg->hwnd, WM_MOUSEACTIVATE, (WPARAM)hwndTop,
1806 MAKELONG( hittest, msg->message ) );
1807 switch(ret)
1808 {
1809 case MA_NOACTIVATEANDEAT:
1810 eatMsg = TRUE;
1811 /* fall through */
1812 case MA_NOACTIVATE:
1813 break;
1814 case MA_ACTIVATEANDEAT:
1815 eatMsg = TRUE;
1816 /* fall through */
1817 case MA_ACTIVATE:
1818 case 0:
1819 if (!FOCUS_MouseActivate( hwndTop )) eatMsg = TRUE;
1820 break;
1821 default:
1822 WARN( "unknown WM_MOUSEACTIVATE code %ld\n", ret );
1823 break;
1824 }
1825 }
1826 }
1827 }
1828
1829 /* send the WM_SETCURSOR message */
1830
1831 /* Windows sends the normal mouse message as the message parameter
1832 in the WM_SETCURSOR message even if it's non-client mouse message */
1833 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd, MAKELONG( hittest, msg->message ));
1834
1835 msg->message = message;
1836 return !eatMsg;
1837 }
1838
1839
1840 /***********************************************************************
1841 * process_hardware_message
1842 *
1843 * Process a hardware message; return TRUE if message should be passed on to the app
1844 */
1845 static BOOL process_hardware_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1846 UINT first, UINT last, BOOL remove )
1847 {
1848 if (is_keyboard_message( msg->message ))
1849 return process_keyboard_message( msg, hw_id, hwnd_filter, first, last, remove );
1850
1851 if (is_mouse_message( msg->message ))
1852 return process_mouse_message( msg, hw_id, extra_info, hwnd_filter, first, last, remove );
1853
1854 ERR( "unknown message type %x\n", msg->message );
1855 return FALSE;
1856 }
1857
1858
1859 /***********************************************************************
1860 * call_sendmsg_callback
1861 *
1862 * Call the callback function of SendMessageCallback.
1863 */
1864 static inline void call_sendmsg_callback( SENDASYNCPROC callback, HWND hwnd, UINT msg,
1865 ULONG_PTR data, LRESULT result )
1866 {
1867 if (TRACE_ON(relay))
1868 DPRINTF( "%04lx:Call message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
1869 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
1870 data, result );
1871 callback( hwnd, msg, data, result );
1872 if (TRACE_ON(relay))
1873 DPRINTF( "%04lx:Ret message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
1874 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
1875 data, result );
1876 }
1877
1878
1879 /***********************************************************************
1880 * get_hook_proc
1881 *
1882 * Retrieve the hook procedure real value for a module-relative proc
1883 */
1884 static void *get_hook_proc( void *proc, const WCHAR *module )
1885 {
1886 HMODULE mod;
1887
1888 if (!(mod = GetModuleHandleW(module)))
1889 {
1890 TRACE( "loading %s\n", debugstr_w(module) );
1891 /* FIXME: the library will never be freed */
1892 if (!(mod = LoadLibraryW(module))) return NULL;
1893 }
1894 return (char *)mod + (ULONG_PTR)proc;
1895 }
1896
1897
1898 /***********************************************************************
1899 * peek_message
1900 *
1901 * Peek for a message matching the given parameters. Return FALSE if none available.
1902 * All pending sent messages are processed before returning.
1903 */
1904 static BOOL peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, int flags )
1905 {
1906 LRESULT result;
1907 ULONG_PTR extra_info = 0;
1908 struct user_thread_info *thread_info = get_user_thread_info();
1909 struct received_message_info info, *old_info;
1910 unsigned int hw_id = 0; /* id of previous hardware message */
1911
1912 if (!first && !last) last = ~0;
1913
1914 for (;;)
1915 {
1916 NTSTATUS res;
1917 void *buffer = NULL;
1918 size_t size = 0, buffer_size = 0;
1919
1920 do /* loop while buffer is too small */
1921 {
1922 if (buffer_size && !(buffer = HeapAlloc( GetProcessHeap(), 0, buffer_size )))
1923 return FALSE;
1924 SERVER_START_REQ( get_message )
1925 {
1926 req->flags = flags;
1927 req->get_win = hwnd;
1928 req->get_first = first;
1929 req->get_last = last;
1930 req->hw_id = hw_id;
1931 if (buffer_size) wine_server_set_reply( req, buffer, buffer_size );
1932 if (!(res = wine_server_call( req )))
1933 {
1934 size = wine_server_reply_size( reply );
1935 info.type = reply->type;
1936 info.msg.hwnd = reply->win;
1937 info.msg.message = reply->msg;
1938 info.msg.wParam = reply->wparam;
1939 info.msg.lParam = reply->lparam;
1940 info.msg.time = reply->time;
1941 info.msg.pt.x = reply->x;
1942 info.msg.pt.y = reply->y;
1943 info.hook = reply->hook;
1944 info.hook_proc = reply->hook_proc;
1945 hw_id = reply->hw_id;
1946 extra_info = reply->info;
1947 thread_info->active_hooks = reply->active_hooks;
1948 }
1949 else
1950 {
1951 HeapFree( GetProcessHeap(), 0, buffer );
1952 buffer_size = reply->total;
1953 }
1954 }
1955 SERVER_END_REQ;
1956 } while (res == STATUS_BUFFER_OVERFLOW);
1957
1958 if (res) return FALSE;
1959
1960 TRACE( "got type %d msg %x (%s) hwnd %p wp %x lp %lx\n",
1961 info.type, info.msg.message,
1962 (info.type == MSG_WINEVENT) ? "MSG_WINEVENT" : SPY_GetMsgName(info.msg.message, info.msg.hwnd),
1963 info.msg.hwnd, info.msg.wParam, info.msg.lParam );
1964
1965 switch(info.type)
1966 {
1967 case MSG_ASCII:
1968 case MSG_UNICODE:
1969 info.flags = ISMEX_SEND;
1970 break;
1971 case MSG_NOTIFY:
1972 info.flags = ISMEX_NOTIFY;
1973 break;
1974 case MSG_CALLBACK:
1975 info.flags = ISMEX_CALLBACK;
1976 break;
1977 case MSG_CALLBACK_RESULT:
1978 call_sendmsg_callback( (SENDASYNCPROC)info.msg.wParam, info.msg.hwnd,
1979 info.msg.message, extra_info, info.msg.lParam );
1980 goto next;
1981 case MSG_WINEVENT:
1982 if (size)
1983 {
1984 WCHAR module[MAX_PATH];
1985 size = min( size, (MAX_PATH - 1) * sizeof(WCHAR) );
1986 memcpy( module, buffer, size );
1987 module[size / sizeof(WCHAR)] = 0;
1988 if (!(info.hook_proc = get_hook_proc( info.hook_proc, module )))
1989 {
1990 ERR( "invalid winevent hook module name %s\n", debugstr_w(module) );
1991 goto next;
1992 }
1993 }
1994 if (TRACE_ON(relay))
1995 DPRINTF( "%04lx:Call winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%x,child_id=%lx,tid=%04lx,time=%lx)\n",
1996 GetCurrentThreadId(), info.hook_proc,
1997 info.hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
1998 info.msg.lParam, extra_info, info.msg.time);
1999
2000 info.hook_proc( info.hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2001 info.msg.lParam, extra_info, info.msg.time );
2002
2003 if (TRACE_ON(relay))
2004 DPRINTF( "%04lx:Ret winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%x,child_id=%lx,tid=%04lx,time=%lx)\n",
2005 GetCurrentThreadId(), info.hook_proc,
2006 info.hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2007 info.msg.lParam, extra_info, info.msg.time);
2008 goto next;
2009 case MSG_OTHER_PROCESS:
2010 info.flags = ISMEX_SEND;
2011 if (!unpack_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2012 &info.msg.lParam, &buffer, size ))
2013 {
2014 ERR( "invalid packed message %x (%s) hwnd %p wp %x lp %lx size %d\n",
2015 info.msg.message, SPY_GetMsgName(info.msg.message, info.msg.hwnd), info.msg.hwnd,
2016 info.msg.wParam, info.msg.lParam, size );
2017 /* ignore it */
2018 reply_message( &info, 0, TRUE );
2019 goto next;
2020 }
2021 break;
2022 case MSG_HARDWARE:
2023 if (!process_hardware_message( &info.msg, hw_id, extra_info,
2024 hwnd, first, last, flags & GET_MSG_REMOVE ))
2025 {
2026 TRACE("dropping msg %x\n", info.msg.message );
2027 goto next; /* ignore it */
2028 }
2029 thread_info->GetMessagePosVal = MAKELONG( info.msg.pt.x, info.msg.pt.y );
2030 /* fall through */
2031 case MSG_POSTED:
2032 thread_info->GetMessageExtraInfoVal = extra_info;
2033 if (info.msg.message >= WM_DDE_FIRST && info.msg.message <= WM_DDE_LAST)
2034 {
2035 if (!unpack_dde_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2036 &info.msg.lParam, &buffer, size ))
2037 {
2038 ERR( "invalid packed dde-message %x (%s) hwnd %p wp %x lp %lx size %d\n",
2039 info.msg.message, SPY_GetMsgName(info.msg.message, info.msg.hwnd),
2040 info.msg.hwnd, info.msg.wParam, info.msg.lParam, size );
2041 goto next; /* ignore it */
2042 }
2043 }
2044 *msg = info.msg;
2045 HeapFree( GetProcessHeap(), 0, buffer );
2046 return TRUE;
2047 }
2048
2049 /* if we get here, we have a sent message; call the window procedure */
2050 old_info = thread_info->receive_info;
2051 thread_info->receive_info = &info;
2052 result = call_window_proc( info.msg.hwnd, info.msg.message, info.msg.wParam,
2053 info.msg.lParam, (info.type != MSG_ASCII), FALSE );
2054 reply_message( &info, result, TRUE );
2055 thread_info->receive_info = old_info;
2056 next:
2057 HeapFree( GetProcessHeap(), 0, buffer );
2058 }
2059 }
2060
2061
2062 /***********************************************************************
2063 * process_sent_messages
2064 *
2065 * Process all pending sent messages.
2066 */
2067 inline static void process_sent_messages(void)
2068 {
2069 MSG msg;
2070 peek_message( &msg, 0, 0, 0, GET_MSG_REMOVE | GET_MSG_SENT_ONLY );
2071 }
2072
2073
2074 /***********************************************************************
2075 * get_server_queue_handle
2076 *
2077 * Get a handle to the server message queue for the current thread.
2078 */
2079 static HANDLE get_server_queue_handle(void)
2080 {
2081 struct user_thread_info *thread_info = get_user_thread_info();
2082 HANDLE ret;
2083
2084 if (!(ret = thread_info->server_queue))
2085 {
2086 SERVER_START_REQ( get_msg_queue )
2087 {
2088 wine_server_call( req );
2089 ret = reply->handle;
2090 }
2091 SERVER_END_REQ;
2092 thread_info->server_queue = ret;
2093 if (!ret) ERR( "Cannot get server thread queue\n" );
2094 }
2095 return ret;
2096 }
2097
2098
2099 /***********************************************************************
2100 * wait_message_reply
2101 *
2102 * Wait until a sent message gets replied to.
2103 */
2104 static void wait_message_reply( UINT flags )
2105 {
2106 HANDLE server_queue = get_server_queue_handle();
2107
2108 for (;;)
2109 {
2110 unsigned int wake_bits = 0, changed_bits = 0;
2111 DWORD dwlc, res;
2112
2113 SERVER_START_REQ( set_queue_mask )
2114 {
2115 req->wake_mask = QS_SMRESULT | ((flags & SMTO_BLOCK) ? 0 : QS_SENDMESSAGE);
2116 req->changed_mask = req->wake_mask;
2117 req->skip_wait = 1;
2118 if (!wine_server_call( req ))
2119 {
2120 wake_bits = reply->wake_bits;
2121 changed_bits = reply->changed_bits;
2122 }
2123 }
2124 SERVER_END_REQ;
2125
2126 if (wake_bits & QS_SMRESULT) return; /* got a result */
2127 if (wake_bits & QS_SENDMESSAGE)
2128 {
2129 /* Process the sent message immediately */
2130 process_sent_messages();
2131 continue;
2132 }
2133
2134 /* now wait for it */
2135
2136 ReleaseThunkLock( &dwlc );
2137 res = USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue,
2138 INFINITE, QS_ALLINPUT, 0 );
2139 if (dwlc) RestoreThunkLock( dwlc );
2140 }
2141 }
2142
2143 /***********************************************************************
2144 * put_message_in_queue
2145 *
2146 * Put a sent message into the destination queue.
2147 * For inter-process message, reply_size is set to expected size of reply data.
2148 */
2149 static BOOL put_message_in_queue( DWORD dest_tid, const struct send_message_info *info,
2150 size_t *reply_size )
2151 {
2152 struct packed_message data;
2153 unsigned int res;
2154 int i, timeout = 0;
2155
2156 /* Check for INFINITE timeout for compatibility with Win9x,
2157 * although Windows >= NT does not do so
2158 */
2159 if (info->type != MSG_NOTIFY &&
2160 info->type != MSG_CALLBACK &&
2161 info->type != MSG_POSTED &&
2162 info->timeout != INFINITE)
2163 timeout = info->timeout;
2164
2165 data.count = 0;
2166 if (info->type == MSG_OTHER_PROCESS)
2167 {
2168 *reply_size = pack_message( info->hwnd, info->msg, info->wparam, info->lparam, &data );
2169 if (data.count == -1)
2170 {
2171 WARN( "cannot pack message %x\n", info->msg );
2172 return FALSE;
2173 }
2174 }
2175 else if (info->type == MSG_POSTED && info->msg >= WM_DDE_FIRST && info->msg <= WM_DDE_LAST)
2176 {
2177 return post_dde_message( dest_tid, &data, info );
2178 }
2179
2180 SERVER_START_REQ( send_message )
2181 {
2182 req->id = dest_tid;
2183 req->type = info->type;
2184 req->flags = 0;
2185 req->win = info->hwnd;
2186 req->msg = info->msg;
2187 req->wparam = info->wparam;
2188 req->lparam = info->lparam;
2189 req->time = GetCurrentTime();
2190 req->timeout = timeout;
2191
2192 if (info->type == MSG_CALLBACK)
2193 {
2194 req->callback = info->callback;
2195 req->info = info->data;
2196 }
2197
2198 if (info->flags & SMTO_ABORTIFHUNG) req->flags |= SEND_MSG_ABORT_IF_HUNG;
2199 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
2200 if ((res = wine_server_call( req )))
2201 {
2202 if (res == STATUS_INVALID_PARAMETER)
2203 /* FIXME: find a STATUS_ value for this one */
2204 SetLastError( ERROR_INVALID_THREAD_ID );
2205 else
2206 SetLastError( RtlNtStatusToDosError(res) );
2207 }
2208 }
2209 SERVER_END_REQ;
2210 return !res;
2211 }
2212
2213
2214 /***********************************************************************
2215 * retrieve_reply
2216 *
2217 * Retrieve a message reply from the server.
2218 */
2219 static LRESULT retrieve_reply( const struct send_message_info *info,
2220 size_t reply_size, LRESULT *result )
2221 {
2222 NTSTATUS status;
2223 void *reply_data = NULL;
2224
2225 if (reply_size)
2226 {
2227 if (!(reply_data = HeapAlloc( GetProcessHeap(), 0, reply_size )))
2228 {
2229 WARN( "no memory for reply %d bytes, will be truncated\n", reply_size );
2230 reply_size = 0;
2231 }
2232 }
2233 SERVER_START_REQ( get_message_reply )
2234 {
2235 req->cancel = 1;
2236 if (reply_size) wine_server_set_reply( req, reply_data, reply_size );
2237 if (!(status = wine_server_call( req ))) *result = reply->result;
2238 reply_size = wine_server_reply_size( reply );
2239 }
2240 SERVER_END_REQ;
2241 if (!status && reply_size)
2242 unpack_reply( info->hwnd, info->msg, info->wparam, info->lparam, reply_data, reply_size );
2243
2244 HeapFree( GetProcessHeap(), 0, reply_data );
2245
2246 TRACE( "hwnd %p msg %x (%s) wp %x lp %lx got reply %lx (err=%ld)\n",
2247 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam,
2248 info->lparam, *result, status );
2249
2250 /* MSDN states that last error is 0 on timeout, but at least NT4 returns ERROR_TIMEOUT */
2251 if (status) SetLastError( RtlNtStatusToDosError(status) );
2252 return !status;
2253 }
2254
2255
2256 /***********************************************************************
2257 * send_inter_thread_message
2258 */
2259 static LRESULT send_inter_thread_message( DWORD dest_tid, const struct send_message_info *info,
2260 LRESULT *res_ptr )
2261 {
2262 size_t reply_size = 0;
2263
2264 TRACE( "hwnd %p msg %x (%s) wp %x lp %lx\n",
2265 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam, info->lparam );
2266
2267 USER_CheckNotLock();
2268
2269 if (!put_message_in_queue( dest_tid, info, &reply_size )) return 0;
2270
2271 /* there's no reply to wait for on notify/callback messages */
2272 if (info->type == MSG_NOTIFY || info->type == MSG_CALLBACK) return 1;
2273
2274 wait_message_reply( info->flags );
2275 return retrieve_reply( info, reply_size, res_ptr );
2276 }
2277
2278
2279 /***********************************************************************
2280 * MSG_SendInternalMessageTimeout
2281 *
2282 * Same as SendMessageTimeoutW but sends the message to a specific thread
2283 * without requiring a window handle. Only works for internal Wine messages.
2284 */
2285 LRESULT MSG_SendInternalMessageTimeout( DWORD dest_pid, DWORD dest_tid,
2286 UINT msg, WPARAM wparam, LPARAM lparam,
2287 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2288 {
2289 struct send_message_info info;
2290 LRESULT ret, result;
2291
2292 assert( msg & 0x80000000 ); /* must be an internal Wine message */
2293
2294 info.type = MSG_UNICODE;
2295 info.hwnd = 0;
2296 info.msg = msg;
2297 info.wparam = wparam;
2298 info.lparam = lparam;
2299 info.flags = flags;
2300 info.timeout = timeout;
2301
2302 if (USER_IsExitingThread( dest_tid )) return 0;
2303
2304 if (dest_tid == GetCurrentThreadId())
2305 {
2306 result = handle_internal_message( 0, msg, wparam, lparam );
2307 ret = 1;
2308 }
2309 else
2310 {
2311 if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
2312 ret = send_inter_thread_message( dest_tid, &info, &result );
2313 }
2314 if (ret && res_ptr) *res_ptr = result;
2315 return ret;
2316 }
2317
2318
2319 /***********************************************************************
2320 * SendMessageTimeoutW (USER32.@)
2321 */
2322 LRESULT WINAPI SendMessageTimeoutW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2323 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2324 {
2325 struct send_message_info info;
2326 DWORD dest_tid, dest_pid;
2327 LRESULT ret, result;
2328
2329 info.type = MSG_UNICODE;
2330 info.hwnd = hwnd;
2331 info.msg = msg;
2332 info.wparam = wparam;
2333 info.lparam = lparam;
2334 info.flags = flags;
2335 info.timeout = timeout;
2336
2337 if (is_broadcast(hwnd))
2338 {
2339 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2340 if (res_ptr) *res_ptr = 1;
2341 return 1;
2342 }
2343
2344 if (!(dest_tid = GetWindowThreadProcessId( hwnd, &dest_pid ))) return 0;
2345
2346 if (USER_IsExitingThread( dest_tid )) return 0;
2347
2348 SPY_EnterMessage( SPY_SENDMESSAGE, hwnd, msg, wparam, lparam );
2349
2350 if (dest_tid == GetCurrentThreadId())
2351 {
2352 result = call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
2353 ret = 1;
2354 }
2355 else
2356 {
2357 if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
2358 ret = send_inter_thread_message( dest_tid, &info, &result );
2359 }
2360
2361 SPY_ExitMessage( SPY_RESULT_OK, hwnd, msg, result, wparam, lparam );
2362 if (ret && res_ptr) *res_ptr = result;
2363 return ret;
2364 }
2365
2366
2367 /***********************************************************************
2368 * SendMessageTimeoutA (USER32.@)
2369 */
2370 LRESULT WINAPI SendMessageTimeoutA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2371 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2372 {
2373 struct send_message_info info;
2374 DWORD dest_tid, dest_pid;
2375 LRESULT ret, result;
2376
2377 info.type = MSG_ASCII;
2378 info.hwnd = hwnd;
2379 info.msg = msg;
2380 info.wparam = wparam;
2381 info.lparam = lparam;
2382 info.flags = flags;
2383 info.timeout = timeout;
2384
2385 if (is_broadcast(hwnd))
2386 {
2387 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2388 if (res_ptr) *res_ptr = 1;
2389 return 1;
2390 }
2391
2392 if (!(dest_tid = GetWindowThreadProcessId( hwnd, &dest_pid ))) return 0;
2393
2394 if (USER_IsExitingThread( dest_tid )) return 0;
2395
2396 SPY_EnterMessage( SPY_SENDMESSAGE, hwnd, msg, wparam, lparam );
2397
2398 if (dest_tid == GetCurrentThreadId())
2399 {
2400 result = call_window_proc( hwnd, msg, wparam, lparam, FALSE, TRUE );
2401 ret = 1;
2402 }
2403 else if (dest_pid == GetCurrentProcessId())
2404 {
2405 ret = send_inter_thread_message( dest_tid, &info, &result );
2406 }
2407 else
2408 {
2409 /* inter-process message: need to map to Unicode */
2410 info.type = MSG_OTHER_PROCESS;
2411 if (is_unicode_message( info.msg ))
2412 {
2413 if (WINPROC_MapMsg32ATo32W( info.hwnd, info.msg, &info.wparam, &info.lparam ) == -1)
2414 return 0;
2415 ret = send_inter_thread_message( dest_tid, &info, &result );
2416 result = WINPROC_UnmapMsg32ATo32W( info.hwnd, info.msg, info.wparam,
2417 info.lparam, result, NULL );
2418 }
2419 else ret = send_inter_thread_message( dest_tid, &info, &result );
2420 }
2421 SPY_ExitMessage( SPY_RESULT_OK, hwnd, msg, result, wparam, lparam );
2422 if (ret && res_ptr) *res_ptr = result;
2423 return ret;
2424 }
2425
2426
2427 /***********************************************************************
2428 * SendMessageW (USER32.@)
2429 */
2430 LRESULT WINAPI SendMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2431 {
2432 DWORD_PTR res = 0;
2433 SendMessageTimeoutW( hwnd, msg, wparam, lparam, SMTO_NORMAL, 0, &res );
2434 return res;
2435 }
2436
2437
2438 /***********************************************************************
2439 * SendMessageA (USER32.@)
2440 */
2441 LRESULT WINAPI SendMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2442 {
2443 DWORD_PTR res = 0;
2444 SendMessageTimeoutA( hwnd, msg, wparam, lparam, SMTO_NORMAL, 0, &res );
2445 return res;
2446 }
2447
2448
2449 /***********************************************************************
2450 * SendNotifyMessageA (USER32.@)
2451 */
2452 BOOL WINAPI SendNotifyMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2453 {
2454 return SendNotifyMessageW( hwnd, msg, map_wparam_AtoW( msg, wparam ), lparam );
2455 }
2456
2457
2458 /***********************************************************************
2459 * SendNotifyMessageW (USER32.@)
2460 */
2461 BOOL WINAPI SendNotifyMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2462 {
2463 struct send_message_info info;
2464 DWORD dest_tid;
2465 LRESULT result;
2466
2467 if (is_pointer_message(msg))
2468 {
2469 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2470 return FALSE;
2471 }
2472
2473 info.type = MSG_NOTIFY;
2474 info.hwnd = hwnd;
2475 info.msg = msg;
2476 info.wparam = wparam;
2477 info.lparam = lparam;
2478 info.flags = 0;
2479
2480 if (is_broadcast(hwnd))
2481 {
2482 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2483 return TRUE;
2484 }
2485
2486 if (!(dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2487
2488 if (USER_IsExitingThread( dest_tid )) return TRUE;
2489
2490 if (dest_tid == GetCurrentThreadId())
2491 {
2492 call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
2493 return TRUE;
2494 }
2495 return send_inter_thread_message( dest_tid, &info, &result );
2496 }
2497
2498
2499 /***********************************************************************
2500 * SendMessageCallbackA (USER32.@)
2501 */
2502 BOOL WINAPI SendMessageCallbackA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2503 SENDASYNCPROC callback, ULONG_PTR data )
2504 {
2505 return SendMessageCallbackW( hwnd, msg, map_wparam_AtoW( msg, wparam ),
2506 lparam, callback, data );
2507 }
2508
2509
2510 /***********************************************************************
2511 * SendMessageCallbackW (USER32.@)
2512 */
2513 BOOL WINAPI SendMessageCallbackW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2514 SENDASYNCPROC callback, ULONG_PTR data )
2515 {
2516 struct send_message_info info;
2517 LRESULT result;
2518 DWORD dest_tid;
2519
2520 if (is_pointer_message(msg))
2521 {
2522 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2523 return FALSE;
2524 }
2525
2526 info.type = MSG_CALLBACK;
2527 info.hwnd = hwnd;
2528 info.msg = msg;
2529 info.wparam = wparam;
2530 info.lparam = lparam;
2531 info.callback = callback;
2532 info.data = data;
2533 info.flags = 0;
2534
2535 if (is_broadcast(hwnd))
2536 {
2537 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2538 return TRUE;
2539 }
2540
2541 if (!(dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2542
2543 if (USER_IsExitingThread( dest_tid )) return TRUE;
2544
2545 if (dest_tid == GetCurrentThreadId())
2546 {
2547 result = call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
2548 call_sendmsg_callback( callback, hwnd, msg, data, result );
2549 return TRUE;
2550 }
2551 FIXME( "callback will not be called\n" );
2552 return send_inter_thread_message( dest_tid, &info, &result );
2553 }
2554
2555
2556 /***********************************************************************
2557 * ReplyMessage (USER32.@)
2558 */
2559 BOOL WINAPI ReplyMessage( LRESULT result )
2560 {
2561 struct received_message_info *info = get_user_thread_info()->receive_info;
2562
2563 if (!info) return FALSE;
2564 reply_message( info, result, FALSE );
2565 return TRUE;
2566 }
2567
2568
2569 /***********************************************************************
2570 * InSendMessage (USER32.@)
2571 */
2572 BOOL WINAPI InSendMessage(void)
2573 {
2574 return (InSendMessageEx(NULL) & (ISMEX_SEND|ISMEX_REPLIED)) == ISMEX_SEND;
2575 }
2576
2577
2578 /***********************************************************************
2579 * InSendMessageEx (USER32.@)
2580 */
2581 DWORD WINAPI InSendMessageEx( LPVOID reserved )
2582 {
2583 struct received_message_info *info = get_user_thread_info()->receive_info;
2584
2585 if (info) return info->flags;
2586 return ISMEX_NOSEND;
2587 }
2588
2589
2590 /***********************************************************************
2591 * PostMessageA (USER32.@)
2592 */
2593 BOOL WINAPI PostMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2594 {
2595 return PostMessageW( hwnd, msg, map_wparam_AtoW( msg, wparam ), lparam );
2596 }
2597
2598
2599 /***********************************************************************
2600 * PostMessageW (USER32.@)
2601 */
2602 BOOL WINAPI PostMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2603 {
2604 struct send_message_info info;
2605 DWORD dest_tid;
2606
2607 if (is_pointer_message( msg ))
2608 {
2609 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2610 return FALSE;
2611 }
2612
2613 TRACE( "hwnd %p msg %x (%s) wp %x lp %lx\n",
2614 hwnd, msg, SPY_GetMsgName(msg, hwnd), wparam, lparam );
2615
2616 info.type = MSG_POSTED;
2617 info.hwnd = hwnd;
2618 info.msg = msg;
2619 info.wparam = wparam;
2620 info.lparam = lparam;
2621 info.flags = 0;
2622
2623 if (is_broadcast(hwnd))
2624 {
2625 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2626 return TRUE;
2627 }
2628
2629 if (!hwnd) return PostThreadMessageW( GetCurrentThreadId(), msg, wparam, lparam );
2630
2631 if (!(dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2632
2633 if (USER_IsExitingThread( dest_tid )) return TRUE;
2634
2635 return put_message_in_queue( dest_tid, &info, NULL );
2636 }
2637
2638
2639 /**********************************************************************
2640 * PostThreadMessageA (USER32.@)
2641 */
2642 BOOL WINAPI PostThreadMessageA( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2643 {
2644 return PostThreadMessageW( thread, msg, map_wparam_AtoW( msg, wparam ), lparam );
2645 }
2646
2647
2648 /**********************************************************************
2649 * PostThreadMessageW (USER32.@)
2650 */
2651 BOOL WINAPI PostThreadMessageW( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2652 {
2653 struct send_message_info info;
2654
2655 if (is_pointer_message( msg ))
2656 {
2657 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2658 return FALSE;
2659 }
2660 if (USER_IsExitingThread( thread )) return TRUE;
2661
2662 info.type = MSG_POSTED;
2663 info.hwnd = 0;
2664 info.msg = msg;
2665 info.wparam = wparam;
2666 info.lparam = lparam;
2667 info.flags = 0;
2668 return put_message_in_queue( thread, &info, NULL );
2669 }
2670
2671
2672 /***********************************************************************
2673 * PostQuitMessage (USER32.@)
2674 *
2675 * Posts a quit message to the current thread's message queue.
2676 *
2677 * PARAMS
2678 * exit_code [I] Exit code to return from message loop.
2679 *
2680 * RETURNS
2681 * Nothing.
2682 *
2683 * NOTES
2684 * This function is not the same as calling:
2685 *|PostThreadMessage(GetCurrentThreadId(), WM_QUIT, exit_code, 0);
2686 * It instead sets a flag in the message queue that signals it to generate
2687 * a WM_QUIT message when there are no other pending sent or posted messages
2688 * in the queue.
2689 */
2690 void WINAPI PostQuitMessage( INT exit_code )
2691 {
2692 SERVER_START_REQ( post_quit_message )
2693 {
2694 req->exit_code = exit_code;
2695 wine_server_call( req );
2696 }
2697 SERVER_END_REQ;
2698 }
2699
2700
2701 /***********************************************************************
2702 * PeekMessageW (USER32.@)
2703 */
2704 BOOL WINAPI PeekMessageW( MSG *msg_out, HWND hwnd, UINT first, UINT last, UINT flags )
2705 {
2706 struct user_thread_info *thread_info = get_user_thread_info();
2707 MSG msg;
2708
2709 if (HIWORD(flags))
2710 FIXME("PM_QS_xxxx flags (%04x) are not handled\n", flags >> 16);
2711
2712 USER_CheckNotLock();
2713
2714 /* check for graphics events */
2715 USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
2716
2717 hwnd = WIN_GetFullHandle( hwnd );
2718
2719 for (;;)
2720 {
2721 if (!peek_message( &msg, hwnd, first, last, (flags & PM_REMOVE) ? GET_MSG_REMOVE : 0 ))
2722 {
2723 if (!(flags & PM_NOYIELD))
2724 {
2725 DWORD count;
2726 ReleaseThunkLock(&count);
2727 NtYieldExecution();
2728 if (count) RestoreThunkLock(count);
2729 }
2730 return FALSE;
2731 }
2732 if (msg.message & 0x80000000)
2733 {
2734 if (!(flags & PM_REMOVE))
2735 {
2736 /* Have to remove the message explicitly.
2737 Do this before handling it, because the message handler may
2738 call PeekMessage again */
2739 peek_message( &msg, msg.hwnd, msg.message, msg.message, GET_MSG_REMOVE );
2740 }
2741 handle_internal_message( msg.hwnd, msg.message, msg.wParam, msg.lParam );
2742 }
2743 else break;
2744 }
2745
2746 thread_info->GetMessageTimeVal = msg.time;
2747 msg.pt.x = LOWORD( thread_info->GetMessagePosVal );
2748 msg.pt.y = HIWORD( thread_info->GetMessagePosVal );
2749
2750 HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, flags & PM_REMOVE, (LPARAM)&msg, TRUE );
2751
2752 /* copy back our internal safe copy of message data to msg_out.
2753 * msg_out is a variable from the *program*, so it can't be used
2754 * internally as it can get "corrupted" by our use of SendMessage()
2755 * (back to the program) inside the message handling itself. */
2756 if (!msg_out)
2757 {
2758 SetLastError( ERROR_NOACCESS );
2759 return FALSE;
2760 }
2761 *msg_out = msg;
2762 return TRUE;
2763 }
2764
2765
2766 /***********************************************************************
2767 * PeekMessageA (USER32.@)
2768 */
2769 BOOL WINAPI PeekMessageA( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
2770 {
2771 BOOL ret = PeekMessageW( msg, hwnd, first, last, flags );
2772 if (ret) msg->wParam = map_wparam_WtoA( msg->message, msg->wParam );
2773 return ret;
2774 }
2775
2776
2777 /***********************************************************************
2778 * GetMessageW (USER32.@)
2779 */
2780 BOOL WINAPI GetMessageW( MSG *msg, HWND hwnd, UINT first, UINT last )
2781 {
2782 HANDLE server_queue = get_server_queue_handle();
2783 int mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
2784
2785 if (first || last)
2786 {
2787 if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
2788 if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
2789 ((first <= WM_NCMOUSELAST) && (last >= WM_NCMOUSEFIRST)) ) mask |= QS_MOUSE;
2790 if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER;
2791 if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER;
2792 if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT;
2793 }
2794 else mask |= QS_MOUSE | QS_KEY | QS_TIMER | QS_PAINT;
2795
2796 while (!PeekMessageW( msg, hwnd, first, last, PM_REMOVE ))
2797 {
2798 /* wait until one of the bits is set */
2799 unsigned int wake_bits = 0, changed_bits = 0;
2800 DWORD dwlc;
2801
2802 SERVER_START_REQ( set_queue_mask )
2803 {
2804 req->wake_mask = QS_SENDMESSAGE;
2805 req->changed_mask = mask;
2806 req->skip_wait = 1;
2807 if (!wine_server_call( req ))
2808 {
2809 wake_bits = reply->wake_bits;
2810 changed_bits = reply->changed_bits;
2811 }
2812 }
2813 SERVER_END_REQ;
2814
2815 if (changed_bits & mask) continue;
2816 if (wake_bits & QS_SENDMESSAGE) continue;
2817
2818 TRACE( "(%04lx) mask=%08x, bits=%08x, changed=%08x, waiting\n",
2819 GetCurrentThreadId(), mask, wake_bits, changed_bits );
2820
2821 ReleaseThunkLock( &dwlc );
2822 USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue, INFINITE, QS_ALLINPUT, 0 );
2823 if (dwlc) RestoreThunkLock( dwlc );
2824 }
2825
2826 return (msg->message != WM_QUIT);
2827 }
2828
2829
2830 /***********************************************************************
2831 * GetMessageA (USER32.@)
2832 */
2833 BOOL WINAPI GetMessageA( MSG *msg, HWND hwnd, UINT first, UINT last )
2834 {
2835 GetMessageW( msg, hwnd, first, last );
2836 msg->wParam = map_wparam_WtoA( msg->message, msg->wParam );
2837 return (msg->message != WM_QUIT);
2838 }
2839
2840
2841 /***********************************************************************
2842 * IsDialogMessageA (USER32.@)
2843 * IsDialogMessage (USER32.@)
2844 */
2845 BOOL WINAPI IsDialogMessageA( HWND hwndDlg, LPMSG pmsg )
2846 {
2847 MSG msg = *pmsg;
2848 msg.wParam = map_wparam_AtoW( msg.message, msg.wParam );
2849 return IsDialogMessageW( hwndDlg, &msg );
2850 }
2851
2852
2853 /***********************************************************************
2854 * TranslateMessage (USER32.@)
2855 *
2856 * Implementation of TranslateMessage.
2857 *
2858 * TranslateMessage translates virtual-key messages into character-messages,
2859 * as follows :
2860 * WM_KEYDOWN/WM_KEYUP combinations produce a WM_CHAR or WM_DEADCHAR message.
2861 * ditto replacing WM_* with WM_SYS*
2862 * This produces WM_CHAR messages only for keys mapped to ASCII characters
2863 * by the keyboard driver.
2864 *
2865 * If the message is WM_KEYDOWN, WM_KEYUP, WM_SYSKEYDOWN, or WM_SYSKEYUP, the
2866 * return value is nonzero, regardless of the translation.
2867 *
2868 */
2869 BOOL WINAPI TranslateMessage( const MSG *msg )
2870 {
2871 UINT message;
2872 WCHAR wp[2];
2873 BYTE state[256];
2874
2875 if (msg->message < WM_KEYFIRST || msg->message > WM_KEYLAST) return FALSE;
2876 if (msg->message != WM_KEYDOWN && msg->message != WM_SYSKEYDOWN) return TRUE;
2877
2878 TRACE_(key)("Translating key %s (%04x), scancode %02x\n",
2879 SPY_GetVKeyName(msg->wParam), msg->wParam, LOBYTE(HIWORD(msg->lParam)));
2880
2881 GetKeyboardState( state );
2882 /* FIXME : should handle ToUnicode yielding 2 */
2883 switch (ToUnicode(msg->wParam, HIWORD(msg->lParam), state, wp, 2, 0))
2884 {
2885 case 1:
2886 message = (msg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
2887 TRACE_(key)("1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
2888 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
2889 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
2890 break;
2891
2892 case -1:
2893 message = (msg->message == WM_KEYDOWN) ? WM_DEADCHAR : WM_SYSDEADCHAR;
2894 TRACE_(key)("-1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
2895 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
2896 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
2897 break;
2898 }
2899 return TRUE;
2900 }
2901
2902
2903 /***********************************************************************
2904 * DispatchMessageA (USER32.@)
2905 *
2906 * See DispatchMessageW.
2907 */
2908 LONG WINAPI DispatchMessageA( const MSG* msg )
2909 {
2910 WND * wndPtr;
2911 LONG retval;
2912 WNDPROC winproc;
2913
2914 /* Process timer messages */
2915 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
2916 {
2917 if (msg->lParam) return CallWindowProcA( (WNDPROC)msg->lParam, msg->hwnd,
2918 msg->message, msg->wParam, GetTickCount() );
2919 }
2920
2921 if (!(wndPtr = WIN_GetPtr( msg->hwnd )))
2922 {
2923 if (msg->hwnd) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
2924 return 0;
2925 }
2926 if (wndPtr == WND_OTHER_PROCESS || wndPtr == WND_DESKTOP)
2927 {
2928 if (IsWindow( msg->hwnd )) SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2929 else SetLastError( ERROR_INVALID_WINDOW_HANDLE );
2930 return 0;
2931 }
2932 if (wndPtr->tid != GetCurrentThreadId())
2933 {
2934 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2935 WIN_ReleasePtr( wndPtr );
2936 return 0;
2937 }
2938 winproc = wndPtr->winproc;
2939 WIN_ReleasePtr( wndPtr );
2940
2941 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
2942 msg->wParam, msg->lParam );
2943 retval = CallWindowProcA( winproc, msg->hwnd, msg->message,
2944 msg->wParam, msg->lParam );
2945 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
2946 msg->wParam, msg->lParam );
2947
2948 if (msg->message == WM_PAINT)
2949 {
2950 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
2951 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
2952 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
2953 DeleteObject( hrgn );
2954 }
2955 return retval;
2956 }
2957
2958
2959 /***********************************************************************
2960 * DispatchMessageW (USER32.@) Process a message
2961 *
2962 * Process the message specified in the structure *_msg_.
2963 *
2964 * If the lpMsg parameter points to a WM_TIMER message and the
2965 * parameter of the WM_TIMER message is not NULL, the lParam parameter
2966 * points to the function that is called instead of the window
2967 * procedure.
2968 *
2969 * The message must be valid.
2970 *
2971 * RETURNS
2972 *
2973 * DispatchMessage() returns the result of the window procedure invoked.
2974 *
2975 * CONFORMANCE
2976 *
2977 * ECMA-234, Win32
2978 *
2979 */
2980 LONG WINAPI DispatchMessageW( const MSG* msg )
2981 {
2982 WND * wndPtr;
2983 LONG retval;
2984 WNDPROC winproc;
2985
2986 /* Process timer messages */
2987 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
2988 {
2989 if (msg->lParam) return CallWindowProcW( (WNDPROC)msg->lParam, msg->hwnd,
2990 msg->message, msg->wParam, GetTickCount() );
2991 }
2992
2993 if (!(wndPtr = WIN_GetPtr( msg->hwnd )))
2994 {
2995 if (msg->hwnd) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
2996 return 0;
2997 }
2998 if (wndPtr == WND_OTHER_PROCESS || wndPtr == WND_DESKTOP)
2999 {
3000 if (IsWindow( msg->hwnd )) SetLastError( ERROR_MESSAGE_SYNC_ONLY );
3001 else SetLastError( ERROR_INVALID_WINDOW_HANDLE );
3002 return 0;
3003 }
3004 if (wndPtr->tid != GetCurrentThreadId())
3005 {
3006 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
3007 WIN_ReleasePtr( wndPtr );
3008 return 0;
3009 }
3010 winproc = wndPtr->winproc;
3011 WIN_ReleasePtr( wndPtr );
3012
3013 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
3014 msg->wParam, msg->lParam );
3015 retval = CallWindowProcW( winproc, msg->hwnd, msg->message,
3016 msg->wParam, msg->lParam );
3017 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
3018 msg->wParam, msg->lParam );
3019
3020 if (msg->message == WM_PAINT)
3021 {
3022 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
3023 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
3024 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
3025 DeleteObject( hrgn );
3026 }
3027 return retval;
3028 }
3029
3030
3031 /***********************************************************************
3032 * GetMessagePos (USER.119)
3033 * GetMessagePos (USER32.@)
3034 *
3035 * The GetMessagePos() function returns a long value representing a
3036 * cursor position, in screen coordinates, when the last message
3037 * retrieved by the GetMessage() function occurs. The x-coordinate is
3038 * in the low-order word of the return value, the y-coordinate is in
3039 * the high-order word. The application can use the MAKEPOINT()
3040 * macro to obtain a POINT structure from the return value.
3041 *
3042 * For the current cursor position, use GetCursorPos().
3043 *
3044 * RETURNS
3045 *
3046 * Cursor position of last message on success, zero on failure.
3047 *
3048 * CONFORMANCE
3049 *
3050 * ECMA-234, Win32
3051 *
3052 */
3053 DWORD WINAPI GetMessagePos(void)
3054 {
3055 return get_user_thread_info()->GetMessagePosVal;
3056 }
3057
3058
3059 /***********************************************************************
3060 * GetMessageTime (USER.120)
3061 * GetMessageTime (USER32.@)
3062 *
3063 * GetMessageTime() returns the message time for the last message
3064 * retrieved by the function. The time is measured in milliseconds with
3065 * the same offset as GetTickCount().
3066 *
3067 * Since the tick count wraps, this is only useful for moderately short
3068 * relative time comparisons.
3069 *
3070 * RETURNS
3071 *
3072 * Time of last message on success, zero on failure.
3073 */
3074 LONG WINAPI GetMessageTime(void)
3075 {
3076 return get_user_thread_info()->GetMessageTimeVal;
3077 }
3078
3079
3080 /***********************************************************************
3081 * GetMessageExtraInfo (USER.288)
3082 * GetMessageExtraInfo (USER32.@)
3083 */
3084 LPARAM WINAPI GetMessageExtraInfo(void)
3085 {
3086 return get_user_thread_info()->GetMessageExtraInfoVal;
3087 }
3088
3089
3090 /***********************************************************************
3091 * SetMessageExtraInfo (USER32.@)
3092 */
3093 LPARAM WINAPI SetMessageExtraInfo(LPARAM lParam)
3094 {
3095 struct user_thread_info *thread_info = get_user_thread_info();
3096 LONG old_value = thread_info->GetMessageExtraInfoVal;
3097 thread_info->GetMessageExtraInfoVal = lParam;
3098 return old_value;
3099 }
3100
3101
3102 /***********************************************************************
3103 * WaitMessage (USER.112) Suspend thread pending messages
3104 * WaitMessage (USER32.@) Suspend thread pending messages
3105 *
3106 * WaitMessage() suspends a thread until events appear in the thread's
3107 * queue.
3108 */
3109 BOOL WINAPI WaitMessage(void)
3110 {
3111 return (MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, QS_ALLINPUT, 0 ) != WAIT_FAILED);
3112 }
3113
3114
3115 /***********************************************************************
3116 * MsgWaitForMultipleObjectsEx (USER32.@)
3117 */
3118 DWORD WINAPI MsgWaitForMultipleObjectsEx( DWORD count, CONST HANDLE *pHandles,
3119 DWORD timeout, DWORD mask, DWORD flags )
3120 {
3121 HANDLE handles[MAXIMUM_WAIT_OBJECTS];
3122 DWORD i, ret, lock;
3123
3124 if (count > MAXIMUM_WAIT_OBJECTS-1)
3125 {
3126 SetLastError( ERROR_INVALID_PARAMETER );
3127 return WAIT_FAILED;
3128 }
3129
3130 /* set the queue mask */
3131 SERVER_START_REQ( set_queue_mask )
3132 {
3133 req->wake_mask = (flags & MWMO_INPUTAVAILABLE) ? mask : 0;
3134 req->changed_mask = mask;
3135 req->skip_wait = 0;
3136 wine_server_call( req );
3137 }
3138 SERVER_END_REQ;
3139
3140 /* Add the thread event to the handle list */
3141 for (i = 0; i < count; i++) handles[i] = pHandles[i];
3142 handles[count] = get_server_queue_handle();
3143
3144 ReleaseThunkLock( &lock );
3145 ret = USER_Driver->pMsgWaitForMultipleObjectsEx( count+1, handles, timeout, mask, flags );
3146 if (ret == count+1) ret = count; /* pretend the msg queue is ready */
3147 if (lock) RestoreThunkLock( lock );
3148 return ret;
3149 }
3150
3151
3152 /***********************************************************************
3153 * MsgWaitForMultipleObjects (USER32.@)
3154 */
3155 DWORD WINAPI MsgWaitForMultipleObjects( DWORD count, CONST HANDLE *handles,
3156 BOOL wait_all, DWORD timeout, DWORD mask )
3157 {
3158 return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
3159 wait_all ? MWMO_WAITALL : 0 );
3160 }
3161
3162
3163 /***********************************************************************
3164 * WaitForInputIdle (USER32.@)
3165 */
3166 DWORD WINAPI WaitForInputIdle( HANDLE hProcess, DWORD dwTimeOut )
3167 {
3168 DWORD start_time, elapsed, ret;
3169 HANDLE idle_event = (HANDLE)-1;
3170
3171 SERVER_START_REQ( wait_input_idle )
3172 {
3173 req->handle = hProcess;
3174 req->timeout = dwTimeOut;
3175 if (!(ret = wine_server_call_err( req ))) idle_event = reply->event;
3176 }
3177 SERVER_END_REQ;
3178 if (ret) return WAIT_FAILED; /* error */
3179 if (!idle_event) return 0; /* no event to wait on */
3180
3181 start_time = GetTickCount();
3182 elapsed = 0;
3183
3184 TRACE("waiting for %p\n", idle_event );
3185 do
3186 {
3187 ret = MsgWaitForMultipleObjects ( 1, &idle_event, FALSE, dwTimeOut - elapsed, QS_SENDMESSAGE );
3188 switch (ret)
3189 {
3190 case WAIT_OBJECT_0+1:
3191 process_sent_messages();
3192 break;
3193 case WAIT_TIMEOUT:
3194 case WAIT_FAILED:
3195 TRACE("timeout or error\n");
3196 return ret;
3197 default:
3198 TRACE("finished\n");
3199 return 0;
3200 }
3201 if (dwTimeOut != INFINITE)
3202 {
3203 elapsed = GetTickCount() - start_time;
3204 if (elapsed > dwTimeOut)
3205 break;
3206 }
3207 }
3208 while (1);
3209
3210 return WAIT_TIMEOUT;
3211 }
3212
3213
3214 /***********************************************************************
3215 * UserYield (USER.332)
3216 */
3217 void WINAPI UserYield16(void)
3218 {
3219 DWORD count;
3220
3221 /* Handle sent messages */
3222 process_sent_messages();
3223
3224 /* Yield */
3225 ReleaseThunkLock(&count);
3226
3227 if (count)
3228 {
3229 RestoreThunkLock(count);
3230 /* Handle sent messages again */
3231 process_sent_messages();
3232 }
3233 }
3234
3235
3236 /***********************************************************************
3237 * RegisterWindowMessageA (USER32.@)
3238 * RegisterWindowMessage (USER.118)
3239 */
3240 UINT WINAPI RegisterWindowMessageA( LPCSTR str )
3241 {
3242 UINT ret = GlobalAddAtomA(str);
3243 TRACE("%s, ret=%x\n", str, ret);
3244 return ret;
3245 }
3246
3247
3248 /***********************************************************************
3249 * RegisterWindowMessageW (USER32.@)
3250 */
3251 UINT WINAPI RegisterWindowMessageW( LPCWSTR str )
3252 {
3253 UINT ret = GlobalAddAtomW(str);
3254 TRACE("%s ret=%x\n", debugstr_w(str), ret);
3255 return ret;
3256 }
3257
3258
3259 /***********************************************************************
3260 * BroadcastSystemMessageA (USER32.@)
3261 * BroadcastSystemMessage (USER32.@)
3262 */
3263 LONG WINAPI BroadcastSystemMessageA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3264 {
3265 if ((*recipients & BSM_APPLICATIONS) || (*recipients == BSM_ALLCOMPONENTS))
3266 {
3267 FIXME( "(%08lx,%08lx,%08x,%08x,%08lx): semi-stub!\n", flags, *recipients, msg, wp, lp );
3268 PostMessageA( HWND_BROADCAST, msg, wp, lp );
3269 return 1;
3270 }
3271 else
3272 {
3273 FIXME( "(%08lx,%08lx,%08x,%08x,%08lx): stub!\n", flags, *recipients, msg, wp, lp);
3274 return -1;
3275 }
3276 }
3277
3278
3279 /***********************************************************************
3280 * BroadcastSystemMessageW (USER32.@)
3281 */
3282 LONG WINAPI BroadcastSystemMessageW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3283 {
3284 if ((*recipients & BSM_APPLICATIONS) || (*recipients == BSM_ALLCOMPONENTS))
3285 {
3286 FIXME( "(%08lx,%08lx,%08x,%08x,%08lx): semi-stub!\n", flags, *recipients, msg, wp, lp );
3287 PostMessageW( HWND_BROADCAST, msg, wp, lp );
3288 return 1;
3289 }
3290 else
3291 {
3292 FIXME( "(%08lx,%08lx,%08x,%08x,%08lx): stub!\n", flags, *recipients, msg, wp, lp );
3293 return -1;
3294 }
3295 }
3296
3297
3298 /***********************************************************************
3299 * SetMessageQueue (USER32.@)
3300 */
3301 BOOL WINAPI SetMessageQueue( INT size )
3302 {
3303 /* now obsolete the message queue will be expanded dynamically as necessary */
3304 return TRUE;
3305 }
3306
3307
3308 /***********************************************************************
3309 * MessageBeep (USER32.@)
3310 */
3311 BOOL WINAPI MessageBeep( UINT i )
3312 {
3313 BOOL active = TRUE;
3314 SystemParametersInfoA( SPI_GETBEEP, 0, &active, FALSE );
3315 if (active) USER_Driver->pBeep();
3316 return TRUE;
3317 }
3318
3319
3320 /***********************************************************************
3321 * SetTimer (USER32.@)
3322 */
3323 UINT_PTR WINAPI SetTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3324 {
3325 UINT_PTR ret;
3326 WNDPROC winproc = 0;
3327
3328 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, WIN_PROC_32A );
3329
3330 SERVER_START_REQ( set_win_timer )
3331 {
3332 req->win = hwnd;
3333 req->msg = WM_TIMER;
3334 req->id = id;
3335 req->rate = max( timeout, SYS_TIMER_RATE );
3336 req->lparam = (unsigned int)winproc;
3337 if (!wine_server_call_err( req ))
3338 {
3339 ret = reply->id;
3340 if (!ret) ret = TRUE;
3341 }
3342 else ret = 0;
3343 }
3344 SERVER_END_REQ;
3345
3346 TRACE("Added %p %x %p timeout %d\n", hwnd, id, winproc, timeout );
3347 return ret;
3348 }
3349
3350
3351 /***********************************************************************
3352 * SetSystemTimer (USER32.@)
3353 */
3354 UINT_PTR WINAPI SetSystemTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3355 {
3356 UINT_PTR ret;
3357 WNDPROC winproc = 0;
3358
3359 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, WIN_PROC_32A );
3360
3361 SERVER_START_REQ( set_win_timer )
3362 {
3363 req->win = hwnd;
3364 req->msg = WM_SYSTIMER;
3365 req->id = id;
3366 req->rate = max( timeout, SYS_TIMER_RATE );
3367 req->lparam = (unsigned int)winproc;
3368 if (!wine_server_call_err( req ))
3369 {
3370 ret = reply->id;
3371 if (!ret) ret = TRUE;
3372 }
3373 else ret = 0;
3374 }
3375 SERVER_END_REQ;
3376
3377 TRACE("Added %p %x %p timeout %d\n", hwnd, id, winproc, timeout );
3378 return ret;
3379 }
3380
3381
3382 /***********************************************************************
3383 * KillTimer (USER32.@)
3384 */
3385 BOOL WINAPI KillTimer( HWND hwnd, UINT_PTR id )
3386 {
3387 BOOL ret;
3388
3389 TRACE("%p %d\n", hwnd, id );
3390
3391 SERVER_START_REQ( kill_win_timer )
3392 {
3393 req->win = hwnd;
3394 req->msg = WM_TIMER;
3395 req->id = id;
3396 ret = !wine_server_call_err( req );
3397 }
3398 SERVER_END_REQ;
3399 return ret;
3400 }
3401
3402
3403 /***********************************************************************
3404 * KillSystemTimer (USER32.@)
3405 */
3406 BOOL WINAPI KillSystemTimer( HWND hwnd, UINT_PTR id )
3407 {
3408 BOOL ret;
3409
3410 TRACE("%p %d\n", hwnd, id );
3411
3412 SERVER_START_REQ( kill_win_timer )
3413 {
3414 req->win = hwnd;
3415 req->msg = WM_SYSTIMER;
3416 req->id = id;
3417 ret = !wine_server_call_err( req );
3418 }
3419 SERVER_END_REQ;
3420 return ret;
3421 }
3422
3423
3424 /**********************************************************************
3425 * GetGUIThreadInfo (USER32.@)
3426 */
3427 BOOL WINAPI GetGUIThreadInfo( DWORD id, GUITHREADINFO *info )
3428 {
3429 BOOL ret;
3430
3431 SERVER_START_REQ( get_thread_input )
3432 {
3433 req->tid = id;
3434 if ((ret = !wine_server_call_err( req )))
3435 {
3436 info->flags = 0;
3437 info->hwndActive = reply->active;
3438 info->hwndFocus = reply->focus;
3439 info->hwndCapture = reply->capture;
3440 info->hwndMenuOwner = reply->menu_owner;
3441 info->hwndMoveSize = reply->move_size;
3442 info->hwndCaret = reply->caret;
3443 info->rcCaret.left = reply->rect.left;
3444 info->rcCaret.top = reply->rect.top;
3445 info->rcCaret.right = reply->rect.right;
3446 info->rcCaret.bottom = reply->rect.bottom;
3447 if (reply->menu_owner) info->flags |= GUI_INMENUMODE;
3448 if (reply->move_size) info->flags |= GUI_INMOVESIZE;
3449 if (reply->caret) info->flags |= GUI_CARETBLINKING;
3450 }
3451 }
3452 SERVER_END_REQ;
3453 return ret;
3454 }
3455
3456
3457 /******************************************************************
3458 * IsHungAppWindow (USER32.@)
3459 *
3460 */
3461 BOOL WINAPI IsHungAppWindow( HWND hWnd )
3462 {
3463 DWORD_PTR dwResult;
3464 return !SendMessageTimeoutA(hWnd, WM_NULL, 0, 0, SMTO_ABORTIFHUNG, 5000, &dwResult);
3465 }
Windows API implementation