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push fbf0d43ce86cc6cd164eb784b21795bd4cd92f3d
[wine/hacks.git] / dlls / user32 / message.c
blob67bf10e81e61b5c61b8f16560c326723b1736152
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 "dbt.h"
36 #include "dde.h"
37 #include "wine/unicode.h"
38 #include "wine/server.h"
39 #include "user_private.h"
40 #include "win.h"
41 #include "controls.h"
42 #include "wine/debug.h"
43
44 WINE_DEFAULT_DEBUG_CHANNEL(msg);
45 WINE_DECLARE_DEBUG_CHANNEL(relay);
46 WINE_DECLARE_DEBUG_CHANNEL(key);
47
48 #define WM_NCMOUSEFIRST WM_NCMOUSEMOVE
49 #define WM_NCMOUSELAST (WM_NCMOUSEFIRST+(WM_MOUSELAST-WM_MOUSEFIRST))
50
51 #define MAX_PACK_COUNT 4
52 #define MAX_SENDMSG_RECURSION 64
53
54 #define SYS_TIMER_RATE 55 /* min. timer rate in ms (actually 54.925)*/
55
56 /* description of the data fields that need to be packed along with a sent message */
57 struct packed_message
58 {
59 int count;
60 const void *data[MAX_PACK_COUNT];
61 size_t size[MAX_PACK_COUNT];
62 };
63
64 /* info about the message currently being received by the current thread */
65 struct received_message_info
66 {
67 enum message_type type;
68 MSG msg;
69 UINT flags; /* InSendMessageEx return flags */
70 };
71
72 /* structure to group all parameters for sent messages of the various kinds */
73 struct send_message_info
74 {
75 enum message_type type;
76 DWORD dest_tid;
77 HWND hwnd;
78 UINT msg;
79 WPARAM wparam;
80 LPARAM lparam;
81 UINT flags; /* flags for SendMessageTimeout */
82 UINT timeout; /* timeout for SendMessageTimeout */
83 SENDASYNCPROC callback; /* callback function for SendMessageCallback */
84 ULONG_PTR data; /* callback data */
85 enum wm_char_mapping wm_char;
86 };
87
88
89 /* flag for messages that contain pointers */
90 /* 32 messages per entry, messages 0..31 map to bits 0..31 */
91
92 #define SET(msg) (1 << ((msg) & 31))
93
94 static const unsigned int message_pointer_flags[] =
95 {
96 /* 0x00 - 0x1f */
97 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) |
98 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
99 /* 0x20 - 0x3f */
100 SET(WM_GETMINMAXINFO) | SET(WM_DRAWITEM) | SET(WM_MEASUREITEM) | SET(WM_DELETEITEM) |
101 SET(WM_COMPAREITEM),
102 /* 0x40 - 0x5f */
103 SET(WM_WINDOWPOSCHANGING) | SET(WM_WINDOWPOSCHANGED) | SET(WM_COPYDATA) |
104 SET(WM_NOTIFY) | SET(WM_HELP),
105 /* 0x60 - 0x7f */
106 SET(WM_STYLECHANGING) | SET(WM_STYLECHANGED),
107 /* 0x80 - 0x9f */
108 SET(WM_NCCREATE) | SET(WM_NCCALCSIZE) | SET(WM_GETDLGCODE),
109 /* 0xa0 - 0xbf */
110 SET(EM_GETSEL) | SET(EM_GETRECT) | SET(EM_SETRECT) | SET(EM_SETRECTNP),
111 /* 0xc0 - 0xdf */
112 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETTABSTOPS),
113 /* 0xe0 - 0xff */
114 SET(SBM_GETRANGE) | SET(SBM_SETSCROLLINFO) | SET(SBM_GETSCROLLINFO) | SET(SBM_GETSCROLLBARINFO),
115 /* 0x100 - 0x11f */
116 0,
117 /* 0x120 - 0x13f */
118 0,
119 /* 0x140 - 0x15f */
120 SET(CB_GETEDITSEL) | SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) |
121 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) |
122 SET(CB_GETDROPPEDCONTROLRECT) | SET(CB_FINDSTRINGEXACT),
123 /* 0x160 - 0x17f */
124 0,
125 /* 0x180 - 0x19f */
126 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_SELECTSTRING) |
127 SET(LB_DIR) | SET(LB_FINDSTRING) |
128 SET(LB_GETSELITEMS) | SET(LB_SETTABSTOPS) | SET(LB_ADDFILE) | SET(LB_GETITEMRECT),
129 /* 0x1a0 - 0x1bf */
130 SET(LB_FINDSTRINGEXACT),
131 /* 0x1c0 - 0x1df */
132 0,
133 /* 0x1e0 - 0x1ff */
134 0,
135 /* 0x200 - 0x21f */
136 SET(WM_NEXTMENU) | SET(WM_SIZING) | SET(WM_MOVING) | SET(WM_DEVICECHANGE),
137 /* 0x220 - 0x23f */
138 SET(WM_MDICREATE) | SET(WM_MDIGETACTIVE) | SET(WM_DROPOBJECT) |
139 SET(WM_QUERYDROPOBJECT) | SET(WM_DRAGLOOP) | SET(WM_DRAGSELECT) | SET(WM_DRAGMOVE),
140 /* 0x240 - 0x25f */
141 0,
142 /* 0x260 - 0x27f */
143 0,
144 /* 0x280 - 0x29f */
145 0,
146 /* 0x2a0 - 0x2bf */
147 0,
148 /* 0x2c0 - 0x2df */
149 0,
150 /* 0x2e0 - 0x2ff */
151 0,
152 /* 0x300 - 0x31f */
153 SET(WM_ASKCBFORMATNAME)
154 };
155
156 /* flags for messages that contain Unicode strings */
157 static const unsigned int message_unicode_flags[] =
158 {
159 /* 0x00 - 0x1f */
160 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) | SET(WM_GETTEXTLENGTH) |
161 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
162 /* 0x20 - 0x3f */
163 SET(WM_CHARTOITEM),
164 /* 0x40 - 0x5f */
165 0,
166 /* 0x60 - 0x7f */
167 0,
168 /* 0x80 - 0x9f */
169 SET(WM_NCCREATE),
170 /* 0xa0 - 0xbf */
171 0,
172 /* 0xc0 - 0xdf */
173 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETPASSWORDCHAR),
174 /* 0xe0 - 0xff */
175 0,
176 /* 0x100 - 0x11f */
177 SET(WM_CHAR) | SET(WM_DEADCHAR) | SET(WM_SYSCHAR) | SET(WM_SYSDEADCHAR),
178 /* 0x120 - 0x13f */
179 SET(WM_MENUCHAR),
180 /* 0x140 - 0x15f */
181 SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) | SET(CB_GETLBTEXTLEN) |
182 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) | SET(CB_FINDSTRINGEXACT),
183 /* 0x160 - 0x17f */
184 0,
185 /* 0x180 - 0x19f */
186 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_GETTEXTLEN) |
187 SET(LB_SELECTSTRING) | SET(LB_DIR) | SET(LB_FINDSTRING) | SET(LB_ADDFILE),
188 /* 0x1a0 - 0x1bf */
189 SET(LB_FINDSTRINGEXACT),
190 /* 0x1c0 - 0x1df */
191 0,
192 /* 0x1e0 - 0x1ff */
193 0,
194 /* 0x200 - 0x21f */
195 0,
196 /* 0x220 - 0x23f */
197 SET(WM_MDICREATE),
198 /* 0x240 - 0x25f */
199 0,
200 /* 0x260 - 0x27f */
201 0,
202 /* 0x280 - 0x29f */
203 SET(WM_IME_CHAR),
204 /* 0x2a0 - 0x2bf */
205 0,
206 /* 0x2c0 - 0x2df */
207 0,
208 /* 0x2e0 - 0x2ff */
209 0,
210 /* 0x300 - 0x31f */
211 SET(WM_PAINTCLIPBOARD) | SET(WM_SIZECLIPBOARD) | SET(WM_ASKCBFORMATNAME)
212 };
213
214 /* check whether a given message type includes pointers */
215 static inline int is_pointer_message( UINT message )
216 {
217 if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
218 return (message_pointer_flags[message / 32] & SET(message)) != 0;
219 }
220
221 /* check whether a given message type contains Unicode (or ASCII) chars */
222 static inline int is_unicode_message( UINT message )
223 {
224 if (message >= 8*sizeof(message_unicode_flags)) return FALSE;
225 return (message_unicode_flags[message / 32] & SET(message)) != 0;
226 }
227
228 #undef SET
229
230 /* add a data field to a packed message */
231 static inline void push_data( struct packed_message *data, const void *ptr, size_t size )
232 {
233 data->data[data->count] = ptr;
234 data->size[data->count] = size;
235 data->count++;
236 }
237
238 /* add a string to a packed message */
239 static inline void push_string( struct packed_message *data, LPCWSTR str )
240 {
241 push_data( data, str, (strlenW(str) + 1) * sizeof(WCHAR) );
242 }
243
244 /* retrieve a pointer to data from a packed message and increment the buffer pointer */
245 static inline void *get_data( void **buffer, size_t size )
246 {
247 void *ret = *buffer;
248 *buffer = (char *)*buffer + size;
249 return ret;
250 }
251
252 /* make sure that the buffer contains a valid null-terminated Unicode string */
253 static inline BOOL check_string( LPCWSTR str, size_t size )
254 {
255 for (size /= sizeof(WCHAR); size; size--, str++)
256 if (!*str) return TRUE;
257 return FALSE;
258 }
259
260 /* make sure that there is space for 'size' bytes in buffer, growing it if needed */
261 static inline void *get_buffer_space( void **buffer, size_t size )
262 {
263 void *ret;
264
265 if (*buffer)
266 {
267 if (!(ret = HeapReAlloc( GetProcessHeap(), 0, *buffer, size )))
268 HeapFree( GetProcessHeap(), 0, *buffer );
269 }
270 else ret = HeapAlloc( GetProcessHeap(), 0, size );
271
272 *buffer = ret;
273 return ret;
274 }
275
276 /* check whether a combobox expects strings or ids in CB_ADDSTRING/CB_INSERTSTRING */
277 static inline BOOL combobox_has_strings( HWND hwnd )
278 {
279 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
280 return (!(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) || (style & CBS_HASSTRINGS));
281 }
282
283 /* check whether a listbox expects strings or ids in LB_ADDSTRING/LB_INSERTSTRING */
284 static inline BOOL listbox_has_strings( HWND hwnd )
285 {
286 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
287 return (!(style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE)) || (style & LBS_HASSTRINGS));
288 }
289
290 /* check whether message is in the range of keyboard messages */
291 static inline BOOL is_keyboard_message( UINT message )
292 {
293 return (message >= WM_KEYFIRST && message <= WM_KEYLAST);
294 }
295
296 /* check whether message is in the range of mouse messages */
297 static inline BOOL is_mouse_message( UINT message )
298 {
299 return ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) ||
300 (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST));
301 }
302
303 /* check whether message matches the specified hwnd filter */
304 static inline BOOL check_hwnd_filter( const MSG *msg, HWND hwnd_filter )
305 {
306 if (!hwnd_filter || hwnd_filter == GetDesktopWindow()) return TRUE;
307 return (msg->hwnd == hwnd_filter || IsChild( hwnd_filter, msg->hwnd ));
308 }
309
310 /* check for pending WM_CHAR message with DBCS trailing byte */
311 static inline BOOL get_pending_wmchar( MSG *msg, UINT first, UINT last, BOOL remove )
312 {
313 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
314
315 if (!data || !data->get_msg.message) return FALSE;
316 if ((first || last) && (first > WM_CHAR || last < WM_CHAR)) return FALSE;
317 if (!msg) return FALSE;
318 *msg = data->get_msg;
319 if (remove) data->get_msg.message = 0;
320 return TRUE;
321 }
322
323 /***********************************************************************
324 * broadcast_message_callback
325 *
326 * Helper callback for broadcasting messages.
327 */
328 static BOOL CALLBACK broadcast_message_callback( HWND hwnd, LPARAM lparam )
329 {
330 struct send_message_info *info = (struct send_message_info *)lparam;
331 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & (WS_POPUP|WS_CAPTION))) return TRUE;
332 switch(info->type)
333 {
334 case MSG_UNICODE:
335 SendMessageTimeoutW( hwnd, info->msg, info->wparam, info->lparam,
336 info->flags, info->timeout, NULL );
337 break;
338 case MSG_ASCII:
339 SendMessageTimeoutA( hwnd, info->msg, info->wparam, info->lparam,
340 info->flags, info->timeout, NULL );
341 break;
342 case MSG_NOTIFY:
343 SendNotifyMessageW( hwnd, info->msg, info->wparam, info->lparam );
344 break;
345 case MSG_CALLBACK:
346 SendMessageCallbackW( hwnd, info->msg, info->wparam, info->lparam,
347 info->callback, info->data );
348 break;
349 case MSG_POSTED:
350 PostMessageW( hwnd, info->msg, info->wparam, info->lparam );
351 break;
352 default:
353 ERR( "bad type %d\n", info->type );
354 break;
355 }
356 return TRUE;
357 }
358
359
360 /***********************************************************************
361 * map_wparam_AtoW
362 *
363 * Convert the wparam of an ASCII message to Unicode.
364 */
365 BOOL map_wparam_AtoW( UINT message, WPARAM *wparam, enum wm_char_mapping mapping )
366 {
367 char ch[2];
368 WCHAR wch[2];
369
370 wch[0] = wch[1] = 0;
371 switch(message)
372 {
373 case WM_CHAR:
374 /* WM_CHAR is magic: a DBCS char can be sent/posted as two consecutive WM_CHAR
375 * messages, in which case the first char is stored, and the conversion
376 * to Unicode only takes place once the second char is sent/posted.
377 */
378 if (mapping != WMCHAR_MAP_NOMAPPING)
379 {
380 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
381 BYTE low = LOBYTE(*wparam);
382
383 if (HIBYTE(*wparam))
384 {
385 ch[0] = low;
386 ch[1] = HIBYTE(*wparam);
387 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
388 TRACE( "map %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
389 if (data) data->lead_byte[mapping] = 0;
390 }
391 else if (data && data->lead_byte[mapping])
392 {
393 ch[0] = data->lead_byte[mapping];
394 ch[1] = low;
395 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
396 TRACE( "map stored %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
397 data->lead_byte[mapping] = 0;
398 }
399 else if (!IsDBCSLeadByte( low ))
400 {
401 ch[0] = low;
402 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 1 );
403 TRACE( "map %02x -> %04x\n", (BYTE)ch[0], wch[0] );
404 if (data) data->lead_byte[mapping] = 0;
405 }
406 else /* store it and wait for trail byte */
407 {
408 if (!data)
409 {
410 if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) )))
411 return FALSE;
412 get_user_thread_info()->wmchar_data = data;
413 }
414 TRACE( "storing lead byte %02x mapping %u\n", low, mapping );
415 data->lead_byte[mapping] = low;
416 return FALSE;
417 }
418 *wparam = MAKEWPARAM(wch[0], wch[1]);
419 break;
420 }
421 /* else fall through */
422 case WM_CHARTOITEM:
423 case EM_SETPASSWORDCHAR:
424 case WM_DEADCHAR:
425 case WM_SYSCHAR:
426 case WM_SYSDEADCHAR:
427 case WM_MENUCHAR:
428 ch[0] = LOBYTE(*wparam);
429 ch[1] = HIBYTE(*wparam);
430 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
431 *wparam = MAKEWPARAM(wch[0], wch[1]);
432 break;
433 case WM_IME_CHAR:
434 ch[0] = HIBYTE(*wparam);
435 ch[1] = LOBYTE(*wparam);
436 if (ch[0]) RtlMultiByteToUnicodeN( wch, sizeof(wch[0]), NULL, ch, 2 );
437 else RtlMultiByteToUnicodeN( wch, sizeof(wch[0]), NULL, ch + 1, 1 );
438 *wparam = MAKEWPARAM(wch[0], HIWORD(*wparam));
439 break;
440 }
441 return TRUE;
442 }
443
444
445 /***********************************************************************
446 * map_wparam_WtoA
447 *
448 * Convert the wparam of a Unicode message to ASCII.
449 */
450 static void map_wparam_WtoA( MSG *msg, BOOL remove )
451 {
452 BYTE ch[2];
453 WCHAR wch[2];
454 DWORD len;
455
456 switch(msg->message)
457 {
458 case WM_CHAR:
459 if (!HIWORD(msg->wParam))
460 {
461 wch[0] = LOWORD(msg->wParam);
462 ch[0] = ch[1] = 0;
463 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, &len, wch, sizeof(wch[0]) );
464 if (len == 2) /* DBCS char */
465 {
466 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
467 if (!data)
468 {
469 if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) ))) return;
470 get_user_thread_info()->wmchar_data = data;
471 }
472 if (remove)
473 {
474 data->get_msg = *msg;
475 data->get_msg.wParam = ch[1];
476 }
477 msg->wParam = ch[0];
478 return;
479 }
480 }
481 /* else fall through */
482 case WM_CHARTOITEM:
483 case EM_SETPASSWORDCHAR:
484 case WM_DEADCHAR:
485 case WM_SYSCHAR:
486 case WM_SYSDEADCHAR:
487 case WM_MENUCHAR:
488 wch[0] = LOWORD(msg->wParam);
489 wch[1] = HIWORD(msg->wParam);
490 ch[0] = ch[1] = 0;
491 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, NULL, wch, sizeof(wch) );
492 msg->wParam = MAKEWPARAM( ch[0] | (ch[1] << 8), 0 );
493 break;
494 case WM_IME_CHAR:
495 wch[0] = LOWORD(msg->wParam);
496 ch[0] = ch[1] = 0;
497 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, &len, wch, sizeof(wch[0]) );
498 if (len == 2)
499 msg->wParam = MAKEWPARAM( (ch[0] << 8) | ch[1], HIWORD(msg->wParam) );
500 else
501 msg->wParam = MAKEWPARAM( ch[0], HIWORD(msg->wParam) );
502 break;
503 }
504 }
505
506
507 /***********************************************************************
508 * pack_message
509 *
510 * Pack a message for sending to another process.
511 * Return the size of the data we expect in the message reply.
512 * Set data->count to -1 if there is an error.
513 */
514 static size_t pack_message( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
515 struct packed_message *data )
516 {
517 data->count = 0;
518 switch(message)
519 {
520 case WM_NCCREATE:
521 case WM_CREATE:
522 {
523 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
524 push_data( data, cs, sizeof(*cs) );
525 if (HIWORD(cs->lpszName)) push_string( data, cs->lpszName );
526 if (HIWORD(cs->lpszClass)) push_string( data, cs->lpszClass );
527 return sizeof(*cs);
528 }
529 case WM_GETTEXT:
530 case WM_ASKCBFORMATNAME:
531 return wparam * sizeof(WCHAR);
532 case WM_WININICHANGE:
533 if (lparam) push_string(data, (LPWSTR)lparam );
534 return 0;
535 case WM_SETTEXT:
536 case WM_DEVMODECHANGE:
537 case CB_DIR:
538 case LB_DIR:
539 case LB_ADDFILE:
540 case EM_REPLACESEL:
541 push_string( data, (LPWSTR)lparam );
542 return 0;
543 case WM_GETMINMAXINFO:
544 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
545 return sizeof(MINMAXINFO);
546 case WM_DRAWITEM:
547 push_data( data, (DRAWITEMSTRUCT *)lparam, sizeof(DRAWITEMSTRUCT) );
548 return 0;
549 case WM_MEASUREITEM:
550 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
551 return sizeof(MEASUREITEMSTRUCT);
552 case WM_DELETEITEM:
553 push_data( data, (DELETEITEMSTRUCT *)lparam, sizeof(DELETEITEMSTRUCT) );
554 return 0;
555 case WM_COMPAREITEM:
556 push_data( data, (COMPAREITEMSTRUCT *)lparam, sizeof(COMPAREITEMSTRUCT) );
557 return 0;
558 case WM_WINDOWPOSCHANGING:
559 case WM_WINDOWPOSCHANGED:
560 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
561 return sizeof(WINDOWPOS);
562 case WM_COPYDATA:
563 {
564 COPYDATASTRUCT *cp = (COPYDATASTRUCT *)lparam;
565 push_data( data, cp, sizeof(*cp) );
566 if (cp->lpData) push_data( data, cp->lpData, cp->cbData );
567 return 0;
568 }
569 case WM_NOTIFY:
570 /* WM_NOTIFY cannot be sent across processes (MSDN) */
571 data->count = -1;
572 return 0;
573 case WM_HELP:
574 push_data( data, (HELPINFO *)lparam, sizeof(HELPINFO) );
575 return 0;
576 case WM_STYLECHANGING:
577 case WM_STYLECHANGED:
578 push_data( data, (STYLESTRUCT *)lparam, sizeof(STYLESTRUCT) );
579 return 0;
580 case WM_NCCALCSIZE:
581 if (!wparam)
582 {
583 push_data( data, (RECT *)lparam, sizeof(RECT) );
584 return sizeof(RECT);
585 }
586 else
587 {
588 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
589 push_data( data, nc, sizeof(*nc) );
590 push_data( data, nc->lppos, sizeof(*nc->lppos) );
591 return sizeof(*nc) + sizeof(*nc->lppos);
592 }
593 case WM_GETDLGCODE:
594 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
595 return sizeof(MSG);
596 case SBM_SETSCROLLINFO:
597 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
598 return 0;
599 case SBM_GETSCROLLINFO:
600 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
601 return sizeof(SCROLLINFO);
602 case SBM_GETSCROLLBARINFO:
603 {
604 const SCROLLBARINFO *info = (const SCROLLBARINFO *)lparam;
605 size_t size = min( info->cbSize, sizeof(SCROLLBARINFO) );
606 push_data( data, info, size );
607 return size;
608 }
609 case EM_GETSEL:
610 case SBM_GETRANGE:
611 case CB_GETEDITSEL:
612 {
613 size_t size = 0;
614 if (wparam) size += sizeof(DWORD);
615 if (lparam) size += sizeof(DWORD);
616 return size;
617 }
618 case EM_GETRECT:
619 case LB_GETITEMRECT:
620 case CB_GETDROPPEDCONTROLRECT:
621 return sizeof(RECT);
622 case EM_SETRECT:
623 case EM_SETRECTNP:
624 push_data( data, (RECT *)lparam, sizeof(RECT) );
625 return 0;
626 case EM_GETLINE:
627 {
628 WORD *pw = (WORD *)lparam;
629 push_data( data, pw, sizeof(*pw) );
630 return *pw * sizeof(WCHAR);
631 }
632 case EM_SETTABSTOPS:
633 case LB_SETTABSTOPS:
634 if (wparam) push_data( data, (UINT *)lparam, sizeof(UINT) * wparam );
635 return 0;
636 case CB_ADDSTRING:
637 case CB_INSERTSTRING:
638 case CB_FINDSTRING:
639 case CB_FINDSTRINGEXACT:
640 case CB_SELECTSTRING:
641 if (combobox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
642 return 0;
643 case CB_GETLBTEXT:
644 if (!combobox_has_strings( hwnd )) return sizeof(ULONG_PTR);
645 return (SendMessageW( hwnd, CB_GETLBTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
646 case LB_ADDSTRING:
647 case LB_INSERTSTRING:
648 case LB_FINDSTRING:
649 case LB_FINDSTRINGEXACT:
650 case LB_SELECTSTRING:
651 if (listbox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
652 return 0;
653 case LB_GETTEXT:
654 if (!listbox_has_strings( hwnd )) return sizeof(ULONG_PTR);
655 return (SendMessageW( hwnd, LB_GETTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
656 case LB_GETSELITEMS:
657 return wparam * sizeof(UINT);
658 case WM_NEXTMENU:
659 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
660 return sizeof(MDINEXTMENU);
661 case WM_SIZING:
662 case WM_MOVING:
663 push_data( data, (RECT *)lparam, sizeof(RECT) );
664 return sizeof(RECT);
665 case WM_MDICREATE:
666 {
667 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
668 push_data( data, cs, sizeof(*cs) );
669 if (HIWORD(cs->szTitle)) push_string( data, cs->szTitle );
670 if (HIWORD(cs->szClass)) push_string( data, cs->szClass );
671 return sizeof(*cs);
672 }
673 case WM_MDIGETACTIVE:
674 if (lparam) return sizeof(BOOL);
675 return 0;
676 case WM_DEVICECHANGE:
677 {
678 DEV_BROADCAST_HDR *header = (DEV_BROADCAST_HDR *)lparam;
679 push_data( data, header, header->dbch_size );
680 return 0;
681 }
682 case WM_WINE_SETWINDOWPOS:
683 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
684 return 0;
685 case WM_WINE_KEYBOARD_LL_HOOK:
686 {
687 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
688 push_data( data, h_extra, sizeof(*h_extra) );
689 push_data( data, (LPVOID)h_extra->lparam, sizeof(KBDLLHOOKSTRUCT) );
690 return 0;
691 }
692 case WM_WINE_MOUSE_LL_HOOK:
693 {
694 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
695 push_data( data, h_extra, sizeof(*h_extra) );
696 push_data( data, (LPVOID)h_extra->lparam, sizeof(MSLLHOOKSTRUCT) );
697 return 0;
698 }
699 case WM_NCPAINT:
700 if (wparam <= 1) return 0;
701 FIXME( "WM_NCPAINT hdc packing not supported yet\n" );
702 data->count = -1;
703 return 0;
704 case WM_PAINT:
705 if (!wparam) return 0;
706 /* fall through */
707
708 /* these contain an HFONT */
709 case WM_SETFONT:
710 case WM_GETFONT:
711 /* these contain an HDC */
712 case WM_ERASEBKGND:
713 case WM_ICONERASEBKGND:
714 case WM_CTLCOLORMSGBOX:
715 case WM_CTLCOLOREDIT:
716 case WM_CTLCOLORLISTBOX:
717 case WM_CTLCOLORBTN:
718 case WM_CTLCOLORDLG:
719 case WM_CTLCOLORSCROLLBAR:
720 case WM_CTLCOLORSTATIC:
721 case WM_PRINT:
722 case WM_PRINTCLIENT:
723 /* these contain an HGLOBAL */
724 case WM_PAINTCLIPBOARD:
725 case WM_SIZECLIPBOARD:
726 /* these contain HICON */
727 case WM_GETICON:
728 case WM_SETICON:
729 case WM_QUERYDRAGICON:
730 case WM_QUERYPARKICON:
731 /* these contain pointers */
732 case WM_DROPOBJECT:
733 case WM_QUERYDROPOBJECT:
734 case WM_DRAGLOOP:
735 case WM_DRAGSELECT:
736 case WM_DRAGMOVE:
737 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
738 data->count = -1;
739 return 0;
740 }
741 return 0;
742 }
743
744
745 /***********************************************************************
746 * unpack_message
747 *
748 * Unpack a message received from another process.
749 */
750 static BOOL unpack_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
751 void **buffer, size_t size )
752 {
753 size_t minsize = 0;
754
755 switch(message)
756 {
757 case WM_NCCREATE:
758 case WM_CREATE:
759 {
760 CREATESTRUCTW *cs = *buffer;
761 WCHAR *str = (WCHAR *)(cs + 1);
762 if (size < sizeof(*cs)) return FALSE;
763 size -= sizeof(*cs);
764 if (HIWORD(cs->lpszName))
765 {
766 if (!check_string( str, size )) return FALSE;
767 cs->lpszName = str;
768 size -= (strlenW(str) + 1) * sizeof(WCHAR);
769 str += strlenW(str) + 1;
770 }
771 if (HIWORD(cs->lpszClass))
772 {
773 if (!check_string( str, size )) return FALSE;
774 cs->lpszClass = str;
775 }
776 break;
777 }
778 case WM_GETTEXT:
779 case WM_ASKCBFORMATNAME:
780 if (!get_buffer_space( buffer, (*wparam * sizeof(WCHAR)) )) return FALSE;
781 break;
782 case WM_WININICHANGE:
783 if (!*lparam) return TRUE;
784 /* fall through */
785 case WM_SETTEXT:
786 case WM_DEVMODECHANGE:
787 case CB_DIR:
788 case LB_DIR:
789 case LB_ADDFILE:
790 case EM_REPLACESEL:
791 if (!check_string( *buffer, size )) return FALSE;
792 break;
793 case WM_GETMINMAXINFO:
794 minsize = sizeof(MINMAXINFO);
795 break;
796 case WM_DRAWITEM:
797 minsize = sizeof(DRAWITEMSTRUCT);
798 break;
799 case WM_MEASUREITEM:
800 minsize = sizeof(MEASUREITEMSTRUCT);
801 break;
802 case WM_DELETEITEM:
803 minsize = sizeof(DELETEITEMSTRUCT);
804 break;
805 case WM_COMPAREITEM:
806 minsize = sizeof(COMPAREITEMSTRUCT);
807 break;
808 case WM_WINDOWPOSCHANGING:
809 case WM_WINDOWPOSCHANGED:
810 case WM_WINE_SETWINDOWPOS:
811 minsize = sizeof(WINDOWPOS);
812 break;
813 case WM_COPYDATA:
814 {
815 COPYDATASTRUCT *cp = *buffer;
816 if (size < sizeof(*cp)) return FALSE;
817 if (cp->lpData)
818 {
819 minsize = sizeof(*cp) + cp->cbData;
820 cp->lpData = cp + 1;
821 }
822 break;
823 }
824 case WM_NOTIFY:
825 /* WM_NOTIFY cannot be sent across processes (MSDN) */
826 return FALSE;
827 case WM_HELP:
828 minsize = sizeof(HELPINFO);
829 break;
830 case WM_STYLECHANGING:
831 case WM_STYLECHANGED:
832 minsize = sizeof(STYLESTRUCT);
833 break;
834 case WM_NCCALCSIZE:
835 if (!*wparam) minsize = sizeof(RECT);
836 else
837 {
838 NCCALCSIZE_PARAMS *nc = *buffer;
839 if (size < sizeof(*nc) + sizeof(*nc->lppos)) return FALSE;
840 nc->lppos = (WINDOWPOS *)(nc + 1);
841 }
842 break;
843 case WM_GETDLGCODE:
844 if (!*lparam) return TRUE;
845 minsize = sizeof(MSG);
846 break;
847 case SBM_SETSCROLLINFO:
848 minsize = sizeof(SCROLLINFO);
849 break;
850 case SBM_GETSCROLLINFO:
851 if (!get_buffer_space( buffer, sizeof(SCROLLINFO ))) return FALSE;
852 break;
853 case SBM_GETSCROLLBARINFO:
854 if (!get_buffer_space( buffer, sizeof(SCROLLBARINFO ))) return FALSE;
855 break;
856 case EM_GETSEL:
857 case SBM_GETRANGE:
858 case CB_GETEDITSEL:
859 if (*wparam || *lparam)
860 {
861 if (!get_buffer_space( buffer, 2*sizeof(DWORD) )) return FALSE;
862 if (*wparam) *wparam = (WPARAM)*buffer;
863 if (*lparam) *lparam = (LPARAM)((DWORD *)*buffer + 1);
864 }
865 return TRUE;
866 case EM_GETRECT:
867 case LB_GETITEMRECT:
868 case CB_GETDROPPEDCONTROLRECT:
869 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
870 break;
871 case EM_SETRECT:
872 case EM_SETRECTNP:
873 minsize = sizeof(RECT);
874 break;
875 case EM_GETLINE:
876 {
877 WORD len;
878 if (size < sizeof(WORD)) return FALSE;
879 len = *(WORD *)*buffer;
880 if (!get_buffer_space( buffer, (len + 1) * sizeof(WCHAR) )) return FALSE;
881 *lparam = (LPARAM)*buffer + sizeof(WORD); /* don't erase WORD at start of buffer */
882 return TRUE;
883 }
884 case EM_SETTABSTOPS:
885 case LB_SETTABSTOPS:
886 if (!*wparam) return TRUE;
887 minsize = *wparam * sizeof(UINT);
888 break;
889 case CB_ADDSTRING:
890 case CB_INSERTSTRING:
891 case CB_FINDSTRING:
892 case CB_FINDSTRINGEXACT:
893 case CB_SELECTSTRING:
894 case LB_ADDSTRING:
895 case LB_INSERTSTRING:
896 case LB_FINDSTRING:
897 case LB_FINDSTRINGEXACT:
898 case LB_SELECTSTRING:
899 if (!*buffer) return TRUE;
900 if (!check_string( *buffer, size )) return FALSE;
901 break;
902 case CB_GETLBTEXT:
903 {
904 size = sizeof(ULONG_PTR);
905 if (combobox_has_strings( hwnd ))
906 size = (SendMessageW( hwnd, CB_GETLBTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
907 if (!get_buffer_space( buffer, size )) return FALSE;
908 break;
909 }
910 case LB_GETTEXT:
911 {
912 size = sizeof(ULONG_PTR);
913 if (listbox_has_strings( hwnd ))
914 size = (SendMessageW( hwnd, LB_GETTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
915 if (!get_buffer_space( buffer, size )) return FALSE;
916 break;
917 }
918 case LB_GETSELITEMS:
919 if (!get_buffer_space( buffer, *wparam * sizeof(UINT) )) return FALSE;
920 break;
921 case WM_NEXTMENU:
922 minsize = sizeof(MDINEXTMENU);
923 if (!get_buffer_space( buffer, sizeof(MDINEXTMENU) )) return FALSE;
924 break;
925 case WM_SIZING:
926 case WM_MOVING:
927 minsize = sizeof(RECT);
928 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
929 break;
930 case WM_MDICREATE:
931 {
932 MDICREATESTRUCTW *cs = *buffer;
933 WCHAR *str = (WCHAR *)(cs + 1);
934 if (size < sizeof(*cs)) return FALSE;
935 size -= sizeof(*cs);
936 if (HIWORD(cs->szTitle))
937 {
938 if (!check_string( str, size )) return FALSE;
939 cs->szTitle = str;
940 size -= (strlenW(str) + 1) * sizeof(WCHAR);
941 str += strlenW(str) + 1;
942 }
943 if (HIWORD(cs->szClass))
944 {
945 if (!check_string( str, size )) return FALSE;
946 cs->szClass = str;
947 }
948 break;
949 }
950 case WM_MDIGETACTIVE:
951 if (!*lparam) return TRUE;
952 if (!get_buffer_space( buffer, sizeof(BOOL) )) return FALSE;
953 break;
954 case WM_DEVICECHANGE:
955 minsize = sizeof(DEV_BROADCAST_HDR);
956 break;
957 case WM_WINE_KEYBOARD_LL_HOOK:
958 case WM_WINE_MOUSE_LL_HOOK:
959 {
960 struct hook_extra_info *h_extra = (struct hook_extra_info *)*buffer;
961
962 minsize = sizeof(struct hook_extra_info) +
963 (message == WM_WINE_KEYBOARD_LL_HOOK ? sizeof(KBDLLHOOKSTRUCT)
964 : sizeof(MSLLHOOKSTRUCT));
965 if (size < minsize) return FALSE;
966 h_extra->lparam = (LPARAM)(h_extra + 1);
967 break;
968 }
969 case WM_NCPAINT:
970 if (*wparam <= 1) return TRUE;
971 FIXME( "WM_NCPAINT hdc unpacking not supported\n" );
972 return FALSE;
973 case WM_PAINT:
974 if (!*wparam) return TRUE;
975 /* fall through */
976
977 /* these contain an HFONT */
978 case WM_SETFONT:
979 case WM_GETFONT:
980 /* these contain an HDC */
981 case WM_ERASEBKGND:
982 case WM_ICONERASEBKGND:
983 case WM_CTLCOLORMSGBOX:
984 case WM_CTLCOLOREDIT:
985 case WM_CTLCOLORLISTBOX:
986 case WM_CTLCOLORBTN:
987 case WM_CTLCOLORDLG:
988 case WM_CTLCOLORSCROLLBAR:
989 case WM_CTLCOLORSTATIC:
990 case WM_PRINT:
991 case WM_PRINTCLIENT:
992 /* these contain an HGLOBAL */
993 case WM_PAINTCLIPBOARD:
994 case WM_SIZECLIPBOARD:
995 /* these contain HICON */
996 case WM_GETICON:
997 case WM_SETICON:
998 case WM_QUERYDRAGICON:
999 case WM_QUERYPARKICON:
1000 /* these contain pointers */
1001 case WM_DROPOBJECT:
1002 case WM_QUERYDROPOBJECT:
1003 case WM_DRAGLOOP:
1004 case WM_DRAGSELECT:
1005 case WM_DRAGMOVE:
1006 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
1007 return FALSE;
1008
1009 default:
1010 return TRUE; /* message doesn't need any unpacking */
1011 }
1012
1013 /* default exit for most messages: check minsize and store buffer in lparam */
1014 if (size < minsize) return FALSE;
1015 *lparam = (LPARAM)*buffer;
1016 return TRUE;
1017 }
1018
1019
1020 /***********************************************************************
1021 * pack_reply
1022 *
1023 * Pack a reply to a message for sending to another process.
1024 */
1025 static void pack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1026 LRESULT res, struct packed_message *data )
1027 {
1028 data->count = 0;
1029 switch(message)
1030 {
1031 case WM_NCCREATE:
1032 case WM_CREATE:
1033 push_data( data, (CREATESTRUCTW *)lparam, sizeof(CREATESTRUCTW) );
1034 break;
1035 case WM_GETTEXT:
1036 case CB_GETLBTEXT:
1037 case LB_GETTEXT:
1038 push_data( data, (WCHAR *)lparam, (res + 1) * sizeof(WCHAR) );
1039 break;
1040 case WM_GETMINMAXINFO:
1041 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
1042 break;
1043 case WM_MEASUREITEM:
1044 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
1045 break;
1046 case WM_WINDOWPOSCHANGING:
1047 case WM_WINDOWPOSCHANGED:
1048 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
1049 break;
1050 case WM_GETDLGCODE:
1051 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
1052 break;
1053 case SBM_GETSCROLLINFO:
1054 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
1055 break;
1056 case EM_GETRECT:
1057 case LB_GETITEMRECT:
1058 case CB_GETDROPPEDCONTROLRECT:
1059 case WM_SIZING:
1060 case WM_MOVING:
1061 push_data( data, (RECT *)lparam, sizeof(RECT) );
1062 break;
1063 case EM_GETLINE:
1064 {
1065 WORD *ptr = (WORD *)lparam;
1066 push_data( data, ptr, ptr[-1] * sizeof(WCHAR) );
1067 break;
1068 }
1069 case LB_GETSELITEMS:
1070 push_data( data, (UINT *)lparam, wparam * sizeof(UINT) );
1071 break;
1072 case WM_MDIGETACTIVE:
1073 if (lparam) push_data( data, (BOOL *)lparam, sizeof(BOOL) );
1074 break;
1075 case WM_NCCALCSIZE:
1076 if (!wparam)
1077 push_data( data, (RECT *)lparam, sizeof(RECT) );
1078 else
1079 {
1080 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1081 push_data( data, nc, sizeof(*nc) );
1082 push_data( data, nc->lppos, sizeof(*nc->lppos) );
1083 }
1084 break;
1085 case EM_GETSEL:
1086 case SBM_GETRANGE:
1087 case CB_GETEDITSEL:
1088 if (wparam) push_data( data, (DWORD *)wparam, sizeof(DWORD) );
1089 if (lparam) push_data( data, (DWORD *)lparam, sizeof(DWORD) );
1090 break;
1091 case WM_NEXTMENU:
1092 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
1093 break;
1094 case WM_MDICREATE:
1095 push_data( data, (MDICREATESTRUCTW *)lparam, sizeof(MDICREATESTRUCTW) );
1096 break;
1097 case WM_ASKCBFORMATNAME:
1098 push_data( data, (WCHAR *)lparam, (strlenW((WCHAR *)lparam) + 1) * sizeof(WCHAR) );
1099 break;
1100 }
1101 }
1102
1103
1104 /***********************************************************************
1105 * unpack_reply
1106 *
1107 * Unpack a message reply received from another process.
1108 */
1109 static void unpack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1110 void *buffer, size_t size )
1111 {
1112 switch(message)
1113 {
1114 case WM_NCCREATE:
1115 case WM_CREATE:
1116 {
1117 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
1118 LPCWSTR name = cs->lpszName, class = cs->lpszClass;
1119 memcpy( cs, buffer, min( sizeof(*cs), size ));
1120 cs->lpszName = name; /* restore the original pointers */
1121 cs->lpszClass = class;
1122 break;
1123 }
1124 case WM_GETTEXT:
1125 case WM_ASKCBFORMATNAME:
1126 memcpy( (WCHAR *)lparam, buffer, min( wparam*sizeof(WCHAR), size ));
1127 break;
1128 case WM_GETMINMAXINFO:
1129 memcpy( (MINMAXINFO *)lparam, buffer, min( sizeof(MINMAXINFO), size ));
1130 break;
1131 case WM_MEASUREITEM:
1132 memcpy( (MEASUREITEMSTRUCT *)lparam, buffer, min( sizeof(MEASUREITEMSTRUCT), size ));
1133 break;
1134 case WM_WINDOWPOSCHANGING:
1135 case WM_WINDOWPOSCHANGED:
1136 memcpy( (WINDOWPOS *)lparam, buffer, min( sizeof(WINDOWPOS), size ));
1137 break;
1138 case WM_GETDLGCODE:
1139 if (lparam) memcpy( (MSG *)lparam, buffer, min( sizeof(MSG), size ));
1140 break;
1141 case SBM_GETSCROLLINFO:
1142 memcpy( (SCROLLINFO *)lparam, buffer, min( sizeof(SCROLLINFO), size ));
1143 break;
1144 case SBM_GETSCROLLBARINFO:
1145 memcpy( (SCROLLBARINFO *)lparam, buffer, min( sizeof(SCROLLBARINFO), size ));
1146 break;
1147 case EM_GETRECT:
1148 case CB_GETDROPPEDCONTROLRECT:
1149 case LB_GETITEMRECT:
1150 case WM_SIZING:
1151 case WM_MOVING:
1152 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1153 break;
1154 case EM_GETLINE:
1155 size = min( size, (size_t)*(WORD *)lparam );
1156 memcpy( (WCHAR *)lparam, buffer, size );
1157 break;
1158 case LB_GETSELITEMS:
1159 memcpy( (UINT *)lparam, buffer, min( wparam*sizeof(UINT), size ));
1160 break;
1161 case LB_GETTEXT:
1162 case CB_GETLBTEXT:
1163 memcpy( (WCHAR *)lparam, buffer, size );
1164 break;
1165 case WM_NEXTMENU:
1166 memcpy( (MDINEXTMENU *)lparam, buffer, min( sizeof(MDINEXTMENU), size ));
1167 break;
1168 case WM_MDIGETACTIVE:
1169 if (lparam) memcpy( (BOOL *)lparam, buffer, min( sizeof(BOOL), size ));
1170 break;
1171 case WM_NCCALCSIZE:
1172 if (!wparam)
1173 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1174 else
1175 {
1176 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1177 WINDOWPOS *wp = nc->lppos;
1178 memcpy( nc, buffer, min( sizeof(*nc), size ));
1179 if (size > sizeof(*nc))
1180 {
1181 size -= sizeof(*nc);
1182 memcpy( wp, (NCCALCSIZE_PARAMS*)buffer + 1, min( sizeof(*wp), size ));
1183 }
1184 nc->lppos = wp; /* restore the original pointer */
1185 }
1186 break;
1187 case EM_GETSEL:
1188 case SBM_GETRANGE:
1189 case CB_GETEDITSEL:
1190 if (wparam)
1191 {
1192 memcpy( (DWORD *)wparam, buffer, min( sizeof(DWORD), size ));
1193 if (size <= sizeof(DWORD)) break;
1194 size -= sizeof(DWORD);
1195 buffer = (DWORD *)buffer + 1;
1196 }
1197 if (lparam) memcpy( (DWORD *)lparam, buffer, min( sizeof(DWORD), size ));
1198 break;
1199 case WM_MDICREATE:
1200 {
1201 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
1202 LPCWSTR title = cs->szTitle, class = cs->szClass;
1203 memcpy( cs, buffer, min( sizeof(*cs), size ));
1204 cs->szTitle = title; /* restore the original pointers */
1205 cs->szClass = class;
1206 break;
1207 }
1208 default:
1209 ERR( "should not happen: unexpected message %x\n", message );
1210 break;
1211 }
1212 }
1213
1214
1215 /***********************************************************************
1216 * reply_message
1217 *
1218 * Send a reply to a sent message.
1219 */
1220 static void reply_message( struct received_message_info *info, LRESULT result, BOOL remove )
1221 {
1222 struct packed_message data;
1223 int i, replied = info->flags & ISMEX_REPLIED;
1224
1225 if (info->flags & ISMEX_NOTIFY) return; /* notify messages don't get replies */
1226 if (!remove && replied) return; /* replied already */
1227
1228 data.count = 0;
1229 info->flags |= ISMEX_REPLIED;
1230
1231 if (info->type == MSG_OTHER_PROCESS && !replied)
1232 {
1233 pack_reply( info->msg.hwnd, info->msg.message, info->msg.wParam,
1234 info->msg.lParam, result, &data );
1235 }
1236
1237 SERVER_START_REQ( reply_message )
1238 {
1239 req->result = result;
1240 req->remove = remove;
1241 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
1242 wine_server_call( req );
1243 }
1244 SERVER_END_REQ;
1245 }
1246
1247
1248 /***********************************************************************
1249 * handle_internal_message
1250 *
1251 * Handle an internal Wine message instead of calling the window proc.
1252 */
1253 static LRESULT handle_internal_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
1254 {
1255 switch(msg)
1256 {
1257 case WM_WINE_DESTROYWINDOW:
1258 return WIN_DestroyWindow( hwnd );
1259 case WM_WINE_SETWINDOWPOS:
1260 if (hwnd == GetDesktopWindow()) return 0;
1261 return USER_SetWindowPos( (WINDOWPOS *)lparam );
1262 case WM_WINE_SHOWWINDOW:
1263 if (hwnd == GetDesktopWindow()) return 0;
1264 return ShowWindow( hwnd, wparam );
1265 case WM_WINE_SETPARENT:
1266 if (hwnd == GetDesktopWindow()) return 0;
1267 return (LRESULT)SetParent( hwnd, (HWND)wparam );
1268 case WM_WINE_SETWINDOWLONG:
1269 return WIN_SetWindowLong( hwnd, (short)LOWORD(wparam), HIWORD(wparam), lparam, TRUE );
1270 case WM_WINE_ENABLEWINDOW:
1271 if (hwnd == GetDesktopWindow()) return 0;
1272 return EnableWindow( hwnd, wparam );
1273 case WM_WINE_SETACTIVEWINDOW:
1274 if (hwnd == GetDesktopWindow()) return 0;
1275 return (LRESULT)SetActiveWindow( (HWND)wparam );
1276 case WM_WINE_KEYBOARD_LL_HOOK:
1277 case WM_WINE_MOUSE_LL_HOOK:
1278 {
1279 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
1280
1281 return call_current_hook( h_extra->handle, HC_ACTION, wparam, h_extra->lparam );
1282 }
1283 default:
1284 if (msg >= WM_WINE_FIRST_DRIVER_MSG && msg <= WM_WINE_LAST_DRIVER_MSG)
1285 return USER_Driver->pWindowMessage( hwnd, msg, wparam, lparam );
1286 FIXME( "unknown internal message %x\n", msg );
1287 return 0;
1288 }
1289 }
1290
1291 /* since the WM_DDE_ACK response to a WM_DDE_EXECUTE message should contain the handle
1292 * to the memory handle, we keep track (in the server side) of all pairs of handle
1293 * used (the client passes its value and the content of the memory handle), and
1294 * the server stored both values (the client, and the local one, created after the
1295 * content). When a ACK message is generated, the list of pair is searched for a
1296 * matching pair, so that the client memory handle can be returned.
1297 */
1298 struct DDE_pair {
1299 HGLOBAL client_hMem;
1300 HGLOBAL server_hMem;
1301 };
1302
1303 static struct DDE_pair* dde_pairs;
1304 static int dde_num_alloc;
1305 static int dde_num_used;
1306
1307 static CRITICAL_SECTION dde_crst;
1308 static CRITICAL_SECTION_DEBUG critsect_debug =
1309 {
1310 0, 0, &dde_crst,
1311 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
1312 0, 0, { (DWORD_PTR)(__FILE__ ": dde_crst") }
1313 };
1314 static CRITICAL_SECTION dde_crst = { &critsect_debug, -1, 0, 0, 0, 0 };
1315
1316 static BOOL dde_add_pair(HGLOBAL chm, HGLOBAL shm)
1317 {
1318 int i;
1319 #define GROWBY 4
1320
1321 EnterCriticalSection(&dde_crst);
1322
1323 /* now remember the pair of hMem on both sides */
1324 if (dde_num_used == dde_num_alloc)
1325 {
1326 struct DDE_pair* tmp;
1327 if (dde_pairs)
1328 tmp = HeapReAlloc( GetProcessHeap(), 0, dde_pairs,
1329 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1330 else
1331 tmp = HeapAlloc( GetProcessHeap(), 0,
1332 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1333
1334 if (!tmp)
1335 {
1336 LeaveCriticalSection(&dde_crst);
1337 return FALSE;
1338 }
1339 dde_pairs = tmp;
1340 /* zero out newly allocated part */
1341 memset(&dde_pairs[dde_num_alloc], 0, GROWBY * sizeof(struct DDE_pair));
1342 dde_num_alloc += GROWBY;
1343 }
1344 #undef GROWBY
1345 for (i = 0; i < dde_num_alloc; i++)
1346 {
1347 if (dde_pairs[i].server_hMem == 0)
1348 {
1349 dde_pairs[i].client_hMem = chm;
1350 dde_pairs[i].server_hMem = shm;
1351 dde_num_used++;
1352 break;
1353 }
1354 }
1355 LeaveCriticalSection(&dde_crst);
1356 return TRUE;
1357 }
1358
1359 static HGLOBAL dde_get_pair(HGLOBAL shm)
1360 {
1361 int i;
1362 HGLOBAL ret = 0;
1363
1364 EnterCriticalSection(&dde_crst);
1365 for (i = 0; i < dde_num_alloc; i++)
1366 {
1367 if (dde_pairs[i].server_hMem == shm)
1368 {
1369 /* free this pair */
1370 dde_pairs[i].server_hMem = 0;
1371 dde_num_used--;
1372 ret = dde_pairs[i].client_hMem;
1373 break;
1374 }
1375 }
1376 LeaveCriticalSection(&dde_crst);
1377 return ret;
1378 }
1379
1380 /***********************************************************************
1381 * post_dde_message
1382 *
1383 * Post a DDE message
1384 */
1385 static BOOL post_dde_message( struct packed_message *data, const struct send_message_info *info )
1386 {
1387 void* ptr = NULL;
1388 int size = 0;
1389 UINT_PTR uiLo, uiHi;
1390 LPARAM lp = 0;
1391 HGLOBAL hunlock = 0;
1392 int i;
1393 DWORD res;
1394
1395 if (!UnpackDDElParam( info->msg, info->lparam, &uiLo, &uiHi ))
1396 return FALSE;
1397
1398 lp = info->lparam;
1399 switch (info->msg)
1400 {
1401 /* DDE messages which don't require packing are:
1402 * WM_DDE_INITIATE
1403 * WM_DDE_TERMINATE
1404 * WM_DDE_REQUEST
1405 * WM_DDE_UNADVISE
1406 */
1407 case WM_DDE_ACK:
1408 if (HIWORD(uiHi))
1409 {
1410 /* uiHi should contain a hMem from WM_DDE_EXECUTE */
1411 HGLOBAL h = dde_get_pair( (HANDLE)uiHi );
1412 if (h)
1413 {
1414 /* send back the value of h on the other side */
1415 push_data( data, &h, sizeof(HGLOBAL) );
1416 lp = uiLo;
1417 TRACE( "send dde-ack %lx %08lx => %p\n", uiLo, uiHi, h );
1418 }
1419 }
1420 else
1421 {
1422 /* uiHi should contain either an atom or 0 */
1423 TRACE( "send dde-ack %lx atom=%lx\n", uiLo, uiHi );
1424 lp = MAKELONG( uiLo, uiHi );
1425 }
1426 break;
1427 case WM_DDE_ADVISE:
1428 case WM_DDE_DATA:
1429 case WM_DDE_POKE:
1430 size = 0;
1431 if (uiLo)
1432 {
1433 size = GlobalSize( (HGLOBAL)uiLo ) ;
1434 if ((info->msg == WM_DDE_ADVISE && size < sizeof(DDEADVISE)) ||
1435 (info->msg == WM_DDE_DATA && size < sizeof(DDEDATA)) ||
1436 (info->msg == WM_DDE_POKE && size < sizeof(DDEPOKE))
1437 )
1438 return FALSE;
1439 }
1440 else if (info->msg != WM_DDE_DATA) return FALSE;
1441
1442 lp = uiHi;
1443 if (uiLo)
1444 {
1445 if ((ptr = GlobalLock( (HGLOBAL)uiLo) ))
1446 {
1447 DDEDATA *dde_data = (DDEDATA *)ptr;
1448 TRACE("unused %d, fResponse %d, fRelease %d, fDeferUpd %d, fAckReq %d, cfFormat %d\n",
1449 dde_data->unused, dde_data->fResponse, dde_data->fRelease,
1450 dde_data->reserved, dde_data->fAckReq, dde_data->cfFormat);
1451 push_data( data, ptr, size );
1452 hunlock = (HGLOBAL)uiLo;
1453 }
1454 }
1455 TRACE( "send ddepack %u %lx\n", size, uiHi );
1456 break;
1457 case WM_DDE_EXECUTE:
1458 if (info->lparam)
1459 {
1460 if ((ptr = GlobalLock( (HGLOBAL)info->lparam) ))
1461 {
1462 push_data(data, ptr, GlobalSize( (HGLOBAL)info->lparam ));
1463 /* so that the other side can send it back on ACK */
1464 lp = info->lparam;
1465 hunlock = (HGLOBAL)info->lparam;
1466 }
1467 }
1468 break;
1469 }
1470 SERVER_START_REQ( send_message )
1471 {
1472 req->id = info->dest_tid;
1473 req->type = info->type;
1474 req->flags = 0;
1475 req->win = info->hwnd;
1476 req->msg = info->msg;
1477 req->wparam = info->wparam;
1478 req->lparam = lp;
1479 req->timeout = TIMEOUT_INFINITE;
1480 for (i = 0; i < data->count; i++)
1481 wine_server_add_data( req, data->data[i], data->size[i] );
1482 if ((res = wine_server_call( req )))
1483 {
1484 if (res == STATUS_INVALID_PARAMETER)
1485 /* FIXME: find a STATUS_ value for this one */
1486 SetLastError( ERROR_INVALID_THREAD_ID );
1487 else
1488 SetLastError( RtlNtStatusToDosError(res) );
1489 }
1490 else
1491 FreeDDElParam(info->msg, info->lparam);
1492 }
1493 SERVER_END_REQ;
1494 if (hunlock) GlobalUnlock(hunlock);
1495
1496 return !res;
1497 }
1498
1499 /***********************************************************************
1500 * unpack_dde_message
1501 *
1502 * Unpack a posted DDE message received from another process.
1503 */
1504 static BOOL unpack_dde_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
1505 void **buffer, size_t size )
1506 {
1507 UINT_PTR uiLo, uiHi;
1508 HGLOBAL hMem = 0;
1509 void* ptr;
1510
1511 switch (message)
1512 {
1513 case WM_DDE_ACK:
1514 if (size)
1515 {
1516 /* hMem is being passed */
1517 if (size != sizeof(HGLOBAL)) return FALSE;
1518 if (!buffer || !*buffer) return FALSE;
1519 uiLo = *lparam;
1520 memcpy( &hMem, *buffer, size );
1521 uiHi = (UINT_PTR)hMem;
1522 TRACE("recv dde-ack %lx mem=%lx[%lx]\n", uiLo, uiHi, GlobalSize( hMem ));
1523 }
1524 else
1525 {
1526 uiLo = LOWORD( *lparam );
1527 uiHi = HIWORD( *lparam );
1528 TRACE("recv dde-ack %lx atom=%lx\n", uiLo, uiHi);
1529 }
1530 *lparam = PackDDElParam( WM_DDE_ACK, uiLo, uiHi );
1531 break;
1532 case WM_DDE_ADVISE:
1533 case WM_DDE_DATA:
1534 case WM_DDE_POKE:
1535 if ((!buffer || !*buffer) && message != WM_DDE_DATA) return FALSE;
1536 uiHi = *lparam;
1537 if (size)
1538 {
1539 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size )))
1540 return FALSE;
1541 if ((ptr = GlobalLock( hMem )))
1542 {
1543 memcpy( ptr, *buffer, size );
1544 GlobalUnlock( hMem );
1545 }
1546 else
1547 {
1548 GlobalFree( hMem );
1549 return FALSE;
1550 }
1551 }
1552 uiLo = (UINT_PTR)hMem;
1553
1554 *lparam = PackDDElParam( message, uiLo, uiHi );
1555 break;
1556 case WM_DDE_EXECUTE:
1557 if (size)
1558 {
1559 if (!buffer || !*buffer) return FALSE;
1560 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size ))) return FALSE;
1561 if ((ptr = GlobalLock( hMem )))
1562 {
1563 memcpy( ptr, *buffer, size );
1564 GlobalUnlock( hMem );
1565 TRACE( "exec: pairing c=%08lx s=%p\n", *lparam, hMem );
1566 if (!dde_add_pair( (HGLOBAL)*lparam, hMem ))
1567 {
1568 GlobalFree( hMem );
1569 return FALSE;
1570 }
1571 }
1572 else
1573 {
1574 GlobalFree( hMem );
1575 return FALSE;
1576 }
1577 } else return FALSE;
1578 *lparam = (LPARAM)hMem;
1579 break;
1580 }
1581 return TRUE;
1582 }
1583
1584 /***********************************************************************
1585 * call_window_proc
1586 *
1587 * Call a window procedure and the corresponding hooks.
1588 */
1589 static LRESULT call_window_proc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
1590 BOOL unicode, BOOL same_thread, enum wm_char_mapping mapping )
1591 {
1592 struct user_thread_info *thread_info = get_user_thread_info();
1593 LRESULT result = 0;
1594 CWPSTRUCT cwp;
1595 CWPRETSTRUCT cwpret;
1596
1597 if (thread_info->recursion_count > MAX_SENDMSG_RECURSION) return 0;
1598 thread_info->recursion_count++;
1599
1600 if (msg & 0x80000000)
1601 {
1602 result = handle_internal_message( hwnd, msg, wparam, lparam );
1603 goto done;
1604 }
1605
1606 /* first the WH_CALLWNDPROC hook */
1607 hwnd = WIN_GetFullHandle( hwnd );
1608 cwp.lParam = lparam;
1609 cwp.wParam = wparam;
1610 cwp.message = msg;
1611 cwp.hwnd = hwnd;
1612 HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, same_thread, (LPARAM)&cwp, unicode );
1613
1614 /* now call the window procedure */
1615 if (!WINPROC_call_window( hwnd, msg, wparam, lparam, &result, unicode, mapping )) goto done;
1616
1617 /* and finally the WH_CALLWNDPROCRET hook */
1618 cwpret.lResult = result;
1619 cwpret.lParam = lparam;
1620 cwpret.wParam = wparam;
1621 cwpret.message = msg;
1622 cwpret.hwnd = hwnd;
1623 HOOK_CallHooks( WH_CALLWNDPROCRET, HC_ACTION, same_thread, (LPARAM)&cwpret, unicode );
1624 done:
1625 thread_info->recursion_count--;
1626 return result;
1627 }
1628
1629
1630 /***********************************************************************
1631 * send_parent_notify
1632 *
1633 * Send a WM_PARENTNOTIFY to all ancestors of the given window, unless
1634 * the window has the WS_EX_NOPARENTNOTIFY style.
1635 */
1636 static void send_parent_notify( HWND hwnd, WORD event, WORD idChild, POINT pt )
1637 {
1638 /* pt has to be in the client coordinates of the parent window */
1639 MapWindowPoints( 0, hwnd, &pt, 1 );
1640 for (;;)
1641 {
1642 HWND parent;
1643
1644 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) break;
1645 if (GetWindowLongW( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) break;
1646 if (!(parent = GetParent(hwnd))) break;
1647 if (parent == GetDesktopWindow()) break;
1648 MapWindowPoints( hwnd, parent, &pt, 1 );
1649 hwnd = parent;
1650 SendMessageW( hwnd, WM_PARENTNOTIFY,
1651 MAKEWPARAM( event, idChild ), MAKELPARAM( pt.x, pt.y ) );
1652 }
1653 }
1654
1655
1656 /***********************************************************************
1657 * accept_hardware_message
1658 *
1659 * Tell the server we have passed the message to the app
1660 * (even though we may end up dropping it later on)
1661 */
1662 static void accept_hardware_message( UINT hw_id, BOOL remove, HWND new_hwnd )
1663 {
1664 SERVER_START_REQ( accept_hardware_message )
1665 {
1666 req->hw_id = hw_id;
1667 req->remove = remove;
1668 req->new_win = new_hwnd;
1669 if (wine_server_call( req ))
1670 FIXME("Failed to reply to MSG_HARDWARE message. Message may not be removed from queue.\n");
1671 }
1672 SERVER_END_REQ;
1673 }
1674
1675
1676 /***********************************************************************
1677 * process_keyboard_message
1678 *
1679 * returns TRUE if the contents of 'msg' should be passed to the application
1680 */
1681 static BOOL process_keyboard_message( MSG *msg, UINT hw_id, HWND hwnd_filter,
1682 UINT first, UINT last, BOOL remove )
1683 {
1684 EVENTMSG event;
1685
1686 /* FIXME: is this really the right place for this hook? */
1687 event.message = msg->message;
1688 event.hwnd = msg->hwnd;
1689 event.time = msg->time;
1690 event.paramL = (msg->wParam & 0xFF) | (HIWORD(msg->lParam) << 8);
1691 event.paramH = msg->lParam & 0x7FFF;
1692 if (HIWORD(msg->lParam) & 0x0100) event.paramH |= 0x8000; /* special_key - bit */
1693 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1694
1695 /* check message filters */
1696 if (msg->message < first || msg->message > last) return FALSE;
1697 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1698
1699 if (remove)
1700 {
1701 if((msg->message == WM_KEYDOWN) &&
1702 (msg->hwnd != GetDesktopWindow()))
1703 {
1704 /* Handle F1 key by sending out WM_HELP message */
1705 if(msg->wParam == VK_F1 &&
1706 !MENU_IsMenuActive())
1707 {
1708 HELPINFO hi;
1709 hi.cbSize = sizeof(HELPINFO);
1710 hi.iContextType = HELPINFO_WINDOW;
1711 hi.iCtrlId = GetWindowLongPtrA( msg->hwnd, GWLP_ID );
1712 hi.hItemHandle = msg->hwnd;
1713 hi.dwContextId = GetWindowContextHelpId( msg->hwnd );
1714 hi.MousePos = msg->pt;
1715 SendMessageW( msg->hwnd, WM_HELP, 0, (LPARAM)&hi );
1716 }
1717 else if(msg->wParam >= VK_BROWSER_BACK &&
1718 msg->wParam <= VK_LAUNCH_APP2)
1719 {
1720 /* FIXME: Process keystate */
1721 SendMessageW(msg->hwnd, WM_APPCOMMAND, (WPARAM)msg->hwnd, MAKELPARAM(0, (FAPPCOMMAND_KEY | (msg->wParam - VK_BROWSER_BACK + 1))));
1722 }
1723 }
1724 else if (msg->message == WM_KEYUP)
1725 {
1726 /* Handle VK_APPS key by posting a WM_CONTEXTMENU message */
1727 if (msg->wParam == VK_APPS && !MENU_IsMenuActive())
1728 PostMessageW(msg->hwnd, WM_CONTEXTMENU, (WPARAM)msg->hwnd, (LPARAM)-1);
1729 }
1730 }
1731
1732 if (HOOK_CallHooks( WH_KEYBOARD, remove ? HC_ACTION : HC_NOREMOVE,
1733 LOWORD(msg->wParam), msg->lParam, TRUE ))
1734 {
1735 /* skip this message */
1736 HOOK_CallHooks( WH_CBT, HCBT_KEYSKIPPED, LOWORD(msg->wParam), msg->lParam, TRUE );
1737 accept_hardware_message( hw_id, TRUE, 0 );
1738 return FALSE;
1739 }
1740 accept_hardware_message( hw_id, remove, 0 );
1741 return TRUE;
1742 }
1743
1744
1745 /***********************************************************************
1746 * process_mouse_message
1747 *
1748 * returns TRUE if the contents of 'msg' should be passed to the application
1749 */
1750 static BOOL process_mouse_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1751 UINT first, UINT last, BOOL remove )
1752 {
1753 static MSG clk_msg;
1754
1755 POINT pt;
1756 UINT message;
1757 INT hittest;
1758 EVENTMSG event;
1759 GUITHREADINFO info;
1760 MOUSEHOOKSTRUCT hook;
1761 BOOL eatMsg;
1762
1763 /* find the window to dispatch this mouse message to */
1764
1765 GetGUIThreadInfo( GetCurrentThreadId(), &info );
1766 if (info.hwndCapture)
1767 {
1768 hittest = HTCLIENT;
1769 msg->hwnd = info.hwndCapture;
1770 }
1771 else
1772 {
1773 msg->hwnd = WINPOS_WindowFromPoint( msg->hwnd, msg->pt, &hittest );
1774 }
1775
1776 if (!msg->hwnd || !WIN_IsCurrentThread( msg->hwnd ))
1777 {
1778 accept_hardware_message( hw_id, TRUE, msg->hwnd );
1779 return FALSE;
1780 }
1781
1782 /* FIXME: is this really the right place for this hook? */
1783 event.message = msg->message;
1784 event.time = msg->time;
1785 event.hwnd = msg->hwnd;
1786 event.paramL = msg->pt.x;
1787 event.paramH = msg->pt.y;
1788 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1789
1790 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1791
1792 pt = msg->pt;
1793 message = msg->message;
1794 /* Note: windows has no concept of a non-client wheel message */
1795 if (message != WM_MOUSEWHEEL)
1796 {
1797 if (hittest != HTCLIENT)
1798 {
1799 message += WM_NCMOUSEMOVE - WM_MOUSEMOVE;
1800 msg->wParam = hittest;
1801 }
1802 else
1803 {
1804 /* coordinates don't get translated while tracking a menu */
1805 /* FIXME: should differentiate popups and top-level menus */
1806 if (!(info.flags & GUI_INMENUMODE))
1807 ScreenToClient( msg->hwnd, &pt );
1808 }
1809 }
1810 msg->lParam = MAKELONG( pt.x, pt.y );
1811
1812 /* translate double clicks */
1813
1814 if ((msg->message == WM_LBUTTONDOWN) ||
1815 (msg->message == WM_RBUTTONDOWN) ||
1816 (msg->message == WM_MBUTTONDOWN) ||
1817 (msg->message == WM_XBUTTONDOWN))
1818 {
1819 BOOL update = remove;
1820
1821 /* translate double clicks -
1822 * note that ...MOUSEMOVEs can slip in between
1823 * ...BUTTONDOWN and ...BUTTONDBLCLK messages */
1824
1825 if ((info.flags & (GUI_INMENUMODE|GUI_INMOVESIZE)) ||
1826 hittest != HTCLIENT ||
1827 (GetClassLongA( msg->hwnd, GCL_STYLE ) & CS_DBLCLKS))
1828 {
1829 if ((msg->message == clk_msg.message) &&
1830 (msg->hwnd == clk_msg.hwnd) &&
1831 (msg->wParam == clk_msg.wParam) &&
1832 (msg->time - clk_msg.time < GetDoubleClickTime()) &&
1833 (abs(msg->pt.x - clk_msg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
1834 (abs(msg->pt.y - clk_msg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
1835 {
1836 message += (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
1837 if (update)
1838 {
1839 clk_msg.message = 0; /* clear the double click conditions */
1840 update = FALSE;
1841 }
1842 }
1843 }
1844 if (message < first || message > last) return FALSE;
1845 /* update static double click conditions */
1846 if (update) clk_msg = *msg;
1847 }
1848 else
1849 {
1850 if (message < first || message > last) return FALSE;
1851 }
1852
1853 /* message is accepted now (but may still get dropped) */
1854
1855 hook.pt = msg->pt;
1856 hook.hwnd = msg->hwnd;
1857 hook.wHitTestCode = hittest;
1858 hook.dwExtraInfo = extra_info;
1859 if (HOOK_CallHooks( WH_MOUSE, remove ? HC_ACTION : HC_NOREMOVE,
1860 message, (LPARAM)&hook, TRUE ))
1861 {
1862 hook.pt = msg->pt;
1863 hook.hwnd = msg->hwnd;
1864 hook.wHitTestCode = hittest;
1865 hook.dwExtraInfo = extra_info;
1866 HOOK_CallHooks( WH_CBT, HCBT_CLICKSKIPPED, message, (LPARAM)&hook, TRUE );
1867 accept_hardware_message( hw_id, TRUE, 0 );
1868 return FALSE;
1869 }
1870
1871 if ((hittest == HTERROR) || (hittest == HTNOWHERE))
1872 {
1873 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd,
1874 MAKELONG( hittest, msg->message ));
1875 accept_hardware_message( hw_id, TRUE, 0 );
1876 return FALSE;
1877 }
1878
1879 accept_hardware_message( hw_id, remove, 0 );
1880
1881 if (!remove || info.hwndCapture)
1882 {
1883 msg->message = message;
1884 return TRUE;
1885 }
1886
1887 eatMsg = FALSE;
1888
1889 if ((msg->message == WM_LBUTTONDOWN) ||
1890 (msg->message == WM_RBUTTONDOWN) ||
1891 (msg->message == WM_MBUTTONDOWN) ||
1892 (msg->message == WM_XBUTTONDOWN))
1893 {
1894 /* Send the WM_PARENTNOTIFY,
1895 * note that even for double/nonclient clicks
1896 * notification message is still WM_L/M/RBUTTONDOWN.
1897 */
1898 send_parent_notify( msg->hwnd, msg->message, 0, msg->pt );
1899
1900 /* Activate the window if needed */
1901
1902 if (msg->hwnd != info.hwndActive)
1903 {
1904 HWND hwndTop = msg->hwnd;
1905 while (hwndTop)
1906 {
1907 if ((GetWindowLongW( hwndTop, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) != WS_CHILD) break;
1908 hwndTop = GetParent( hwndTop );
1909 }
1910
1911 if (hwndTop && hwndTop != GetDesktopWindow())
1912 {
1913 LONG ret = SendMessageW( msg->hwnd, WM_MOUSEACTIVATE, (WPARAM)hwndTop,
1914 MAKELONG( hittest, msg->message ) );
1915 switch(ret)
1916 {
1917 case MA_NOACTIVATEANDEAT:
1918 eatMsg = TRUE;
1919 /* fall through */
1920 case MA_NOACTIVATE:
1921 break;
1922 case MA_ACTIVATEANDEAT:
1923 eatMsg = TRUE;
1924 /* fall through */
1925 case MA_ACTIVATE:
1926 case 0:
1927 if (!FOCUS_MouseActivate( hwndTop )) eatMsg = TRUE;
1928 break;
1929 default:
1930 WARN( "unknown WM_MOUSEACTIVATE code %d\n", ret );
1931 break;
1932 }
1933 }
1934 }
1935 }
1936
1937 /* send the WM_SETCURSOR message */
1938
1939 /* Windows sends the normal mouse message as the message parameter
1940 in the WM_SETCURSOR message even if it's non-client mouse message */
1941 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd, MAKELONG( hittest, msg->message ));
1942
1943 msg->message = message;
1944 return !eatMsg;
1945 }
1946
1947
1948 /***********************************************************************
1949 * process_hardware_message
1950 *
1951 * Process a hardware message; return TRUE if message should be passed on to the app
1952 */
1953 static BOOL process_hardware_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1954 UINT first, UINT last, BOOL remove )
1955 {
1956 if (is_keyboard_message( msg->message ))
1957 return process_keyboard_message( msg, hw_id, hwnd_filter, first, last, remove );
1958
1959 if (is_mouse_message( msg->message ))
1960 return process_mouse_message( msg, hw_id, extra_info, hwnd_filter, first, last, remove );
1961
1962 ERR( "unknown message type %x\n", msg->message );
1963 return FALSE;
1964 }
1965
1966
1967 /***********************************************************************
1968 * call_sendmsg_callback
1969 *
1970 * Call the callback function of SendMessageCallback.
1971 */
1972 static inline void call_sendmsg_callback( SENDASYNCPROC callback, HWND hwnd, UINT msg,
1973 ULONG_PTR data, LRESULT result )
1974 {
1975 if (!callback) return;
1976
1977 if (TRACE_ON(relay))
1978 DPRINTF( "%04x:Call message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
1979 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
1980 data, result );
1981 callback( hwnd, msg, data, result );
1982 if (TRACE_ON(relay))
1983 DPRINTF( "%04x:Ret message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
1984 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
1985 data, result );
1986 }
1987
1988
1989 /***********************************************************************
1990 * get_hook_proc
1991 *
1992 * Retrieve the hook procedure real value for a module-relative proc
1993 */
1994 static void *get_hook_proc( void *proc, const WCHAR *module )
1995 {
1996 HMODULE mod;
1997
1998 if (!(mod = GetModuleHandleW(module)))
1999 {
2000 TRACE( "loading %s\n", debugstr_w(module) );
2001 /* FIXME: the library will never be freed */
2002 if (!(mod = LoadLibraryW(module))) return NULL;
2003 }
2004 return (char *)mod + (ULONG_PTR)proc;
2005 }
2006
2007
2008 /***********************************************************************
2009 * peek_message
2010 *
2011 * Peek for a message matching the given parameters. Return FALSE if none available.
2012 * All pending sent messages are processed before returning.
2013 */
2014 static BOOL peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
2015 {
2016 LRESULT result;
2017 ULONG_PTR extra_info = 0;
2018 struct user_thread_info *thread_info = get_user_thread_info();
2019 struct received_message_info info, *old_info;
2020 unsigned int wake_mask, changed_mask = HIWORD(flags);
2021 unsigned int hw_id = 0; /* id of previous hardware message */
2022
2023 if (!first && !last) last = ~0;
2024 if (!changed_mask) changed_mask = QS_ALLINPUT;
2025 wake_mask = changed_mask & (QS_SENDMESSAGE | QS_SMRESULT);
2026
2027 for (;;)
2028 {
2029 NTSTATUS res;
2030 void *buffer = NULL;
2031 size_t size = 0, buffer_size = 0;
2032
2033 do /* loop while buffer is too small */
2034 {
2035 if (buffer_size && !(buffer = HeapAlloc( GetProcessHeap(), 0, buffer_size )))
2036 return FALSE;
2037 SERVER_START_REQ( get_message )
2038 {
2039 req->flags = flags;
2040 req->get_win = hwnd;
2041 req->get_first = first;
2042 req->get_last = last;
2043 req->hw_id = hw_id;
2044 req->wake_mask = wake_mask;
2045 req->changed_mask = changed_mask;
2046 if (buffer_size) wine_server_set_reply( req, buffer, buffer_size );
2047 if (!(res = wine_server_call( req )))
2048 {
2049 size = wine_server_reply_size( reply );
2050 info.type = reply->type;
2051 info.msg.hwnd = reply->win;
2052 info.msg.message = reply->msg;
2053 info.msg.wParam = reply->wparam;
2054 info.msg.lParam = reply->lparam;
2055 info.msg.time = reply->time;
2056 info.msg.pt.x = reply->x;
2057 info.msg.pt.y = reply->y;
2058 hw_id = reply->hw_id;
2059 extra_info = reply->info;
2060 thread_info->active_hooks = reply->active_hooks;
2061 }
2062 else
2063 {
2064 HeapFree( GetProcessHeap(), 0, buffer );
2065 buffer_size = reply->total;
2066 }
2067 }
2068 SERVER_END_REQ;
2069 } while (res == STATUS_BUFFER_OVERFLOW);
2070
2071 if (res) return FALSE;
2072
2073 TRACE( "got type %d msg %x (%s) hwnd %p wp %lx lp %lx\n",
2074 info.type, info.msg.message,
2075 (info.type == MSG_WINEVENT) ? "MSG_WINEVENT" : SPY_GetMsgName(info.msg.message, info.msg.hwnd),
2076 info.msg.hwnd, info.msg.wParam, info.msg.lParam );
2077
2078 switch(info.type)
2079 {
2080 case MSG_ASCII:
2081 case MSG_UNICODE:
2082 info.flags = ISMEX_SEND;
2083 break;
2084 case MSG_NOTIFY:
2085 info.flags = ISMEX_NOTIFY;
2086 break;
2087 case MSG_CALLBACK:
2088 info.flags = ISMEX_CALLBACK;
2089 break;
2090 case MSG_CALLBACK_RESULT:
2091 if (size >= sizeof(struct callback_msg_data))
2092 {
2093 const struct callback_msg_data *data = (const struct callback_msg_data *)buffer;
2094 call_sendmsg_callback( data->callback, info.msg.hwnd,
2095 info.msg.message, data->data, data->result );
2096 }
2097 goto next;
2098 case MSG_WINEVENT:
2099 if (size >= sizeof(struct winevent_msg_data))
2100 {
2101 WINEVENTPROC hook_proc;
2102 const struct winevent_msg_data *data = (const struct winevent_msg_data *)buffer;
2103
2104 hook_proc = data->hook_proc;
2105 size -= sizeof(*data);
2106 if (size)
2107 {
2108 WCHAR module[MAX_PATH];
2109
2110 size = min( size, (MAX_PATH - 1) * sizeof(WCHAR) );
2111 memcpy( module, buffer, size );
2112 module[size / sizeof(WCHAR)] = 0;
2113 if (!(hook_proc = get_hook_proc( hook_proc, module )))
2114 {
2115 ERR( "invalid winevent hook module name %s\n", debugstr_w(module) );
2116 goto next;
2117 }
2118 }
2119
2120 if (TRACE_ON(relay))
2121 DPRINTF( "%04x:Call winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%lx,child_id=%lx,tid=%04x,time=%x)\n",
2122 GetCurrentThreadId(), hook_proc,
2123 data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2124 info.msg.lParam, data->tid, info.msg.time);
2125
2126 hook_proc( data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2127 info.msg.lParam, data->tid, info.msg.time );
2128
2129 if (TRACE_ON(relay))
2130 DPRINTF( "%04x:Ret winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%lx,child_id=%lx,tid=%04x,time=%x)\n",
2131 GetCurrentThreadId(), hook_proc,
2132 data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2133 info.msg.lParam, data->tid, info.msg.time);
2134 }
2135 goto next;
2136 case MSG_OTHER_PROCESS:
2137 info.flags = ISMEX_SEND;
2138 if (!unpack_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2139 &info.msg.lParam, &buffer, size ))
2140 {
2141 /* ignore it */
2142 reply_message( &info, 0, TRUE );
2143 goto next;
2144 }
2145 break;
2146 case MSG_HARDWARE:
2147 if (!process_hardware_message( &info.msg, hw_id, extra_info,
2148 hwnd, first, last, flags & PM_REMOVE ))
2149 {
2150 TRACE("dropping msg %x\n", info.msg.message );
2151 goto next; /* ignore it */
2152 }
2153 thread_info->GetMessagePosVal = MAKELONG( info.msg.pt.x, info.msg.pt.y );
2154 /* fall through */
2155 case MSG_POSTED:
2156 thread_info->GetMessageExtraInfoVal = extra_info;
2157 if (info.msg.message >= WM_DDE_FIRST && info.msg.message <= WM_DDE_LAST)
2158 {
2159 if (!unpack_dde_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2160 &info.msg.lParam, &buffer, size ))
2161 goto next; /* ignore it */
2162 }
2163 *msg = info.msg;
2164 HeapFree( GetProcessHeap(), 0, buffer );
2165 return TRUE;
2166 }
2167
2168 /* if we get here, we have a sent message; call the window procedure */
2169 old_info = thread_info->receive_info;
2170 thread_info->receive_info = &info;
2171 result = call_window_proc( info.msg.hwnd, info.msg.message, info.msg.wParam,
2172 info.msg.lParam, (info.type != MSG_ASCII), FALSE,
2173 WMCHAR_MAP_RECVMESSAGE );
2174 reply_message( &info, result, TRUE );
2175 thread_info->receive_info = old_info;
2176
2177 /* if some PM_QS* flags were specified, only handle sent messages from now on */
2178 if (HIWORD(flags)) flags = PM_QS_SENDMESSAGE | LOWORD(flags);
2179 next:
2180 HeapFree( GetProcessHeap(), 0, buffer );
2181 }
2182 }
2183
2184
2185 /***********************************************************************
2186 * process_sent_messages
2187 *
2188 * Process all pending sent messages.
2189 */
2190 static inline void process_sent_messages(void)
2191 {
2192 MSG msg;
2193 peek_message( &msg, 0, 0, 0, PM_REMOVE | PM_QS_SENDMESSAGE );
2194 }
2195
2196
2197 /***********************************************************************
2198 * get_server_queue_handle
2199 *
2200 * Get a handle to the server message queue for the current thread.
2201 */
2202 static HANDLE get_server_queue_handle(void)
2203 {
2204 struct user_thread_info *thread_info = get_user_thread_info();
2205 HANDLE ret;
2206
2207 if (!(ret = thread_info->server_queue))
2208 {
2209 SERVER_START_REQ( get_msg_queue )
2210 {
2211 wine_server_call( req );
2212 ret = reply->handle;
2213 }
2214 SERVER_END_REQ;
2215 thread_info->server_queue = ret;
2216 if (!ret) ERR( "Cannot get server thread queue\n" );
2217 }
2218 return ret;
2219 }
2220
2221
2222 /***********************************************************************
2223 * wait_message_reply
2224 *
2225 * Wait until a sent message gets replied to.
2226 */
2227 static void wait_message_reply( UINT flags )
2228 {
2229 HANDLE server_queue = get_server_queue_handle();
2230
2231 for (;;)
2232 {
2233 unsigned int wake_bits = 0, changed_bits = 0;
2234 DWORD dwlc, res;
2235
2236 SERVER_START_REQ( set_queue_mask )
2237 {
2238 req->wake_mask = QS_SMRESULT | ((flags & SMTO_BLOCK) ? 0 : QS_SENDMESSAGE);
2239 req->changed_mask = req->wake_mask;
2240 req->skip_wait = 1;
2241 if (!wine_server_call( req ))
2242 {
2243 wake_bits = reply->wake_bits;
2244 changed_bits = reply->changed_bits;
2245 }
2246 }
2247 SERVER_END_REQ;
2248
2249 if (wake_bits & QS_SMRESULT) return; /* got a result */
2250 if (wake_bits & QS_SENDMESSAGE)
2251 {
2252 /* Process the sent message immediately */
2253 process_sent_messages();
2254 continue;
2255 }
2256
2257 /* now wait for it */
2258
2259 ReleaseThunkLock( &dwlc );
2260 res = USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue,
2261 INFINITE, QS_SENDMESSAGE, 0 );
2262 if (dwlc) RestoreThunkLock( dwlc );
2263 }
2264 }
2265
2266 /***********************************************************************
2267 * put_message_in_queue
2268 *
2269 * Put a sent message into the destination queue.
2270 * For inter-process message, reply_size is set to expected size of reply data.
2271 */
2272 static BOOL put_message_in_queue( const struct send_message_info *info, size_t *reply_size )
2273 {
2274 struct packed_message data;
2275 message_data_t msg_data;
2276 unsigned int res;
2277 int i;
2278 timeout_t timeout = TIMEOUT_INFINITE;
2279
2280 /* Check for INFINITE timeout for compatibility with Win9x,
2281 * although Windows >= NT does not do so
2282 */
2283 if (info->type != MSG_NOTIFY &&
2284 info->type != MSG_CALLBACK &&
2285 info->type != MSG_POSTED &&
2286 info->timeout &&
2287 info->timeout != INFINITE)
2288 {
2289 /* timeout is signed despite the prototype */
2290 timeout = (timeout_t)max( 0, (int)info->timeout ) * -10000;
2291 }
2292
2293 data.count = 0;
2294 if (info->type == MSG_OTHER_PROCESS)
2295 {
2296 *reply_size = pack_message( info->hwnd, info->msg, info->wparam, info->lparam, &data );
2297 if (data.count == -1)
2298 {
2299 WARN( "cannot pack message %x\n", info->msg );
2300 return FALSE;
2301 }
2302 }
2303 else if (info->type == MSG_CALLBACK)
2304 {
2305 msg_data.callback.callback = info->callback;
2306 msg_data.callback.data = info->data;
2307 msg_data.callback.result = 0;
2308 data.data[0] = &msg_data;
2309 data.size[0] = sizeof(msg_data.callback);
2310 data.count = 1;
2311 }
2312 else if (info->type == MSG_POSTED && info->msg >= WM_DDE_FIRST && info->msg <= WM_DDE_LAST)
2313 {
2314 return post_dde_message( &data, info );
2315 }
2316
2317 SERVER_START_REQ( send_message )
2318 {
2319 req->id = info->dest_tid;
2320 req->type = info->type;
2321 req->flags = 0;
2322 req->win = info->hwnd;
2323 req->msg = info->msg;
2324 req->wparam = info->wparam;
2325 req->lparam = info->lparam;
2326 req->timeout = timeout;
2327
2328 if (info->flags & SMTO_ABORTIFHUNG) req->flags |= SEND_MSG_ABORT_IF_HUNG;
2329 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
2330 if ((res = wine_server_call( req )))
2331 {
2332 if (res == STATUS_INVALID_PARAMETER)
2333 /* FIXME: find a STATUS_ value for this one */
2334 SetLastError( ERROR_INVALID_THREAD_ID );
2335 else
2336 SetLastError( RtlNtStatusToDosError(res) );
2337 }
2338 }
2339 SERVER_END_REQ;
2340 return !res;
2341 }
2342
2343
2344 /***********************************************************************
2345 * retrieve_reply
2346 *
2347 * Retrieve a message reply from the server.
2348 */
2349 static LRESULT retrieve_reply( const struct send_message_info *info,
2350 size_t reply_size, LRESULT *result )
2351 {
2352 NTSTATUS status;
2353 void *reply_data = NULL;
2354
2355 if (reply_size)
2356 {
2357 if (!(reply_data = HeapAlloc( GetProcessHeap(), 0, reply_size )))
2358 {
2359 WARN( "no memory for reply, will be truncated\n" );
2360 reply_size = 0;
2361 }
2362 }
2363 SERVER_START_REQ( get_message_reply )
2364 {
2365 req->cancel = 1;
2366 if (reply_size) wine_server_set_reply( req, reply_data, reply_size );
2367 if (!(status = wine_server_call( req ))) *result = reply->result;
2368 reply_size = wine_server_reply_size( reply );
2369 }
2370 SERVER_END_REQ;
2371 if (!status && reply_size)
2372 unpack_reply( info->hwnd, info->msg, info->wparam, info->lparam, reply_data, reply_size );
2373
2374 HeapFree( GetProcessHeap(), 0, reply_data );
2375
2376 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx got reply %lx (err=%d)\n",
2377 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam,
2378 info->lparam, *result, status );
2379
2380 /* MSDN states that last error is 0 on timeout, but at least NT4 returns ERROR_TIMEOUT */
2381 if (status) SetLastError( RtlNtStatusToDosError(status) );
2382 return !status;
2383 }
2384
2385
2386 /***********************************************************************
2387 * send_inter_thread_message
2388 */
2389 static LRESULT send_inter_thread_message( const struct send_message_info *info, LRESULT *res_ptr )
2390 {
2391 size_t reply_size = 0;
2392
2393 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx\n",
2394 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam, info->lparam );
2395
2396 USER_CheckNotLock();
2397
2398 if (!put_message_in_queue( info, &reply_size )) return 0;
2399
2400 /* there's no reply to wait for on notify/callback messages */
2401 if (info->type == MSG_NOTIFY || info->type == MSG_CALLBACK) return 1;
2402
2403 wait_message_reply( info->flags );
2404 return retrieve_reply( info, reply_size, res_ptr );
2405 }
2406
2407
2408 /***********************************************************************
2409 * send_inter_thread_callback
2410 */
2411 static LRESULT send_inter_thread_callback( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
2412 LRESULT *result, void *arg )
2413 {
2414 struct send_message_info *info = arg;
2415 info->hwnd = hwnd;
2416 info->msg = msg;
2417 info->wparam = wp;
2418 info->lparam = lp;
2419 return send_inter_thread_message( info, result );
2420 }
2421
2422
2423 /***********************************************************************
2424 * send_message
2425 *
2426 * Backend implementation of the various SendMessage functions.
2427 */
2428 static BOOL send_message( struct send_message_info *info, DWORD_PTR *res_ptr, BOOL unicode )
2429 {
2430 DWORD dest_pid;
2431 BOOL ret;
2432 LRESULT result;
2433
2434 if (is_broadcast(info->hwnd))
2435 {
2436 EnumWindows( broadcast_message_callback, (LPARAM)info );
2437 if (res_ptr) *res_ptr = 1;
2438 return TRUE;
2439 }
2440
2441 if (!(info->dest_tid = GetWindowThreadProcessId( info->hwnd, &dest_pid ))) return FALSE;
2442
2443 if (USER_IsExitingThread( info->dest_tid )) return FALSE;
2444
2445 SPY_EnterMessage( SPY_SENDMESSAGE, info->hwnd, info->msg, info->wparam, info->lparam );
2446
2447 if (info->dest_tid == GetCurrentThreadId())
2448 {
2449 result = call_window_proc( info->hwnd, info->msg, info->wparam, info->lparam,
2450 unicode, TRUE, info->wm_char );
2451 if (info->type == MSG_CALLBACK)
2452 call_sendmsg_callback( info->callback, info->hwnd, info->msg, info->data, result );
2453 ret = TRUE;
2454 }
2455 else
2456 {
2457 if (dest_pid != GetCurrentProcessId() && (info->type == MSG_ASCII || info->type == MSG_UNICODE))
2458 info->type = MSG_OTHER_PROCESS;
2459
2460 /* MSG_ASCII can be sent unconverted except for WM_CHAR; everything else needs to be Unicode */
2461 if (!unicode && is_unicode_message( info->msg ) &&
2462 (info->type != MSG_ASCII || info->msg == WM_CHAR))
2463 ret = WINPROC_CallProcAtoW( send_inter_thread_callback, info->hwnd, info->msg,
2464 info->wparam, info->lparam, &result, info, info->wm_char );
2465 else
2466 ret = send_inter_thread_message( info, &result );
2467 }
2468
2469 SPY_ExitMessage( SPY_RESULT_OK, info->hwnd, info->msg, result, info->wparam, info->lparam );
2470 if (ret && res_ptr) *res_ptr = result;
2471 return ret;
2472 }
2473
2474
2475 /***********************************************************************
2476 * MSG_SendInternalMessageTimeout
2477 *
2478 * Same as SendMessageTimeoutW but sends the message to a specific thread
2479 * without requiring a window handle. Only works for internal Wine messages.
2480 */
2481 LRESULT MSG_SendInternalMessageTimeout( DWORD dest_pid, DWORD dest_tid,
2482 UINT msg, WPARAM wparam, LPARAM lparam,
2483 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2484 {
2485 struct send_message_info info;
2486 LRESULT ret, result;
2487
2488 assert( msg & 0x80000000 ); /* must be an internal Wine message */
2489
2490 info.type = MSG_UNICODE;
2491 info.dest_tid = dest_tid;
2492 info.hwnd = 0;
2493 info.msg = msg;
2494 info.wparam = wparam;
2495 info.lparam = lparam;
2496 info.flags = flags;
2497 info.timeout = timeout;
2498
2499 if (USER_IsExitingThread( dest_tid )) return 0;
2500
2501 if (dest_tid == GetCurrentThreadId())
2502 {
2503 result = handle_internal_message( 0, msg, wparam, lparam );
2504 ret = 1;
2505 }
2506 else
2507 {
2508 if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
2509 ret = send_inter_thread_message( &info, &result );
2510 }
2511 if (ret && res_ptr) *res_ptr = result;
2512 return ret;
2513 }
2514
2515
2516 /***********************************************************************
2517 * SendMessageTimeoutW (USER32.@)
2518 */
2519 LRESULT WINAPI SendMessageTimeoutW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2520 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2521 {
2522 struct send_message_info info;
2523
2524 info.type = MSG_UNICODE;
2525 info.hwnd = hwnd;
2526 info.msg = msg;
2527 info.wparam = wparam;
2528 info.lparam = lparam;
2529 info.flags = flags;
2530 info.timeout = timeout;
2531
2532 return send_message( &info, res_ptr, TRUE );
2533 }
2534
2535 /***********************************************************************
2536 * SendMessageTimeoutA (USER32.@)
2537 */
2538 LRESULT WINAPI SendMessageTimeoutA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2539 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2540 {
2541 struct send_message_info info;
2542
2543 info.type = MSG_ASCII;
2544 info.hwnd = hwnd;
2545 info.msg = msg;
2546 info.wparam = wparam;
2547 info.lparam = lparam;
2548 info.flags = flags;
2549 info.timeout = timeout;
2550 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2551
2552 return send_message( &info, res_ptr, FALSE );
2553 }
2554
2555
2556 /***********************************************************************
2557 * SendMessageW (USER32.@)
2558 */
2559 LRESULT WINAPI SendMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2560 {
2561 DWORD_PTR res = 0;
2562 struct send_message_info info;
2563
2564 info.type = MSG_UNICODE;
2565 info.hwnd = hwnd;
2566 info.msg = msg;
2567 info.wparam = wparam;
2568 info.lparam = lparam;
2569 info.flags = SMTO_NORMAL;
2570 info.timeout = 0;
2571
2572 send_message( &info, &res, TRUE );
2573 return res;
2574 }
2575
2576
2577 /***********************************************************************
2578 * SendMessageA (USER32.@)
2579 */
2580 LRESULT WINAPI SendMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2581 {
2582 DWORD_PTR res = 0;
2583 struct send_message_info info;
2584
2585 info.type = MSG_ASCII;
2586 info.hwnd = hwnd;
2587 info.msg = msg;
2588 info.wparam = wparam;
2589 info.lparam = lparam;
2590 info.flags = SMTO_NORMAL;
2591 info.timeout = 0;
2592 info.wm_char = WMCHAR_MAP_SENDMESSAGE;
2593
2594 send_message( &info, &res, FALSE );
2595 return res;
2596 }
2597
2598
2599 /***********************************************************************
2600 * SendNotifyMessageA (USER32.@)
2601 */
2602 BOOL WINAPI SendNotifyMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2603 {
2604 struct send_message_info info;
2605
2606 if (is_pointer_message(msg))
2607 {
2608 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2609 return FALSE;
2610 }
2611
2612 info.type = MSG_NOTIFY;
2613 info.hwnd = hwnd;
2614 info.msg = msg;
2615 info.wparam = wparam;
2616 info.lparam = lparam;
2617 info.flags = 0;
2618 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2619
2620 return send_message( &info, NULL, FALSE );
2621 }
2622
2623
2624 /***********************************************************************
2625 * SendNotifyMessageW (USER32.@)
2626 */
2627 BOOL WINAPI SendNotifyMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2628 {
2629 struct send_message_info info;
2630
2631 if (is_pointer_message(msg))
2632 {
2633 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2634 return FALSE;
2635 }
2636
2637 info.type = MSG_NOTIFY;
2638 info.hwnd = hwnd;
2639 info.msg = msg;
2640 info.wparam = wparam;
2641 info.lparam = lparam;
2642 info.flags = 0;
2643
2644 return send_message( &info, NULL, TRUE );
2645 }
2646
2647
2648 /***********************************************************************
2649 * SendMessageCallbackA (USER32.@)
2650 */
2651 BOOL WINAPI SendMessageCallbackA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2652 SENDASYNCPROC callback, ULONG_PTR data )
2653 {
2654 struct send_message_info info;
2655
2656 if (is_pointer_message(msg))
2657 {
2658 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2659 return FALSE;
2660 }
2661
2662 info.type = MSG_CALLBACK;
2663 info.hwnd = hwnd;
2664 info.msg = msg;
2665 info.wparam = wparam;
2666 info.lparam = lparam;
2667 info.callback = callback;
2668 info.data = data;
2669 info.flags = 0;
2670 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2671
2672 return send_message( &info, NULL, FALSE );
2673 }
2674
2675
2676 /***********************************************************************
2677 * SendMessageCallbackW (USER32.@)
2678 */
2679 BOOL WINAPI SendMessageCallbackW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2680 SENDASYNCPROC callback, ULONG_PTR data )
2681 {
2682 struct send_message_info info;
2683
2684 if (is_pointer_message(msg))
2685 {
2686 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2687 return FALSE;
2688 }
2689
2690 info.type = MSG_CALLBACK;
2691 info.hwnd = hwnd;
2692 info.msg = msg;
2693 info.wparam = wparam;
2694 info.lparam = lparam;
2695 info.callback = callback;
2696 info.data = data;
2697 info.flags = 0;
2698
2699 return send_message( &info, NULL, TRUE );
2700 }
2701
2702
2703 /***********************************************************************
2704 * ReplyMessage (USER32.@)
2705 */
2706 BOOL WINAPI ReplyMessage( LRESULT result )
2707 {
2708 struct received_message_info *info = get_user_thread_info()->receive_info;
2709
2710 if (!info) return FALSE;
2711 reply_message( info, result, FALSE );
2712 return TRUE;
2713 }
2714
2715
2716 /***********************************************************************
2717 * InSendMessage (USER32.@)
2718 */
2719 BOOL WINAPI InSendMessage(void)
2720 {
2721 return (InSendMessageEx(NULL) & (ISMEX_SEND|ISMEX_REPLIED)) == ISMEX_SEND;
2722 }
2723
2724
2725 /***********************************************************************
2726 * InSendMessageEx (USER32.@)
2727 */
2728 DWORD WINAPI InSendMessageEx( LPVOID reserved )
2729 {
2730 struct received_message_info *info = get_user_thread_info()->receive_info;
2731
2732 if (info) return info->flags;
2733 return ISMEX_NOSEND;
2734 }
2735
2736
2737 /***********************************************************************
2738 * PostMessageA (USER32.@)
2739 */
2740 BOOL WINAPI PostMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2741 {
2742 if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_POSTMESSAGE )) return TRUE;
2743 return PostMessageW( hwnd, msg, wparam, lparam );
2744 }
2745
2746
2747 /***********************************************************************
2748 * PostMessageW (USER32.@)
2749 */
2750 BOOL WINAPI PostMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2751 {
2752 struct send_message_info info;
2753
2754 if (is_pointer_message( msg ))
2755 {
2756 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2757 return FALSE;
2758 }
2759
2760 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx\n",
2761 hwnd, msg, SPY_GetMsgName(msg, hwnd), wparam, lparam );
2762
2763 info.type = MSG_POSTED;
2764 info.hwnd = hwnd;
2765 info.msg = msg;
2766 info.wparam = wparam;
2767 info.lparam = lparam;
2768 info.flags = 0;
2769
2770 if (is_broadcast(hwnd))
2771 {
2772 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2773 return TRUE;
2774 }
2775
2776 if (!hwnd) return PostThreadMessageW( GetCurrentThreadId(), msg, wparam, lparam );
2777
2778 if (!(info.dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2779
2780 if (USER_IsExitingThread( info.dest_tid )) return TRUE;
2781
2782 return put_message_in_queue( &info, NULL );
2783 }
2784
2785
2786 /**********************************************************************
2787 * PostThreadMessageA (USER32.@)
2788 */
2789 BOOL WINAPI PostThreadMessageA( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2790 {
2791 if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_POSTMESSAGE )) return TRUE;
2792 return PostThreadMessageW( thread, msg, wparam, lparam );
2793 }
2794
2795
2796 /**********************************************************************
2797 * PostThreadMessageW (USER32.@)
2798 */
2799 BOOL WINAPI PostThreadMessageW( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2800 {
2801 struct send_message_info info;
2802
2803 if (is_pointer_message( msg ))
2804 {
2805 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2806 return FALSE;
2807 }
2808 if (USER_IsExitingThread( thread )) return TRUE;
2809
2810 info.type = MSG_POSTED;
2811 info.dest_tid = thread;
2812 info.hwnd = 0;
2813 info.msg = msg;
2814 info.wparam = wparam;
2815 info.lparam = lparam;
2816 info.flags = 0;
2817 return put_message_in_queue( &info, NULL );
2818 }
2819
2820
2821 /***********************************************************************
2822 * PostQuitMessage (USER32.@)
2823 *
2824 * Posts a quit message to the current thread's message queue.
2825 *
2826 * PARAMS
2827 * exit_code [I] Exit code to return from message loop.
2828 *
2829 * RETURNS
2830 * Nothing.
2831 *
2832 * NOTES
2833 * This function is not the same as calling:
2834 *|PostThreadMessage(GetCurrentThreadId(), WM_QUIT, exit_code, 0);
2835 * It instead sets a flag in the message queue that signals it to generate
2836 * a WM_QUIT message when there are no other pending sent or posted messages
2837 * in the queue.
2838 */
2839 void WINAPI PostQuitMessage( INT exit_code )
2840 {
2841 SERVER_START_REQ( post_quit_message )
2842 {
2843 req->exit_code = exit_code;
2844 wine_server_call( req );
2845 }
2846 SERVER_END_REQ;
2847 }
2848
2849
2850 /***********************************************************************
2851 * PeekMessageW (USER32.@)
2852 */
2853 BOOL WINAPI PeekMessageW( MSG *msg_out, HWND hwnd, UINT first, UINT last, UINT flags )
2854 {
2855 struct user_thread_info *thread_info = get_user_thread_info();
2856 MSG msg;
2857
2858 USER_CheckNotLock();
2859
2860 /* check for graphics events */
2861 USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
2862
2863 hwnd = WIN_GetFullHandle( hwnd );
2864
2865 for (;;)
2866 {
2867 if (!peek_message( &msg, hwnd, first, last, flags ))
2868 {
2869 if (!(flags & PM_NOYIELD))
2870 {
2871 DWORD count;
2872 ReleaseThunkLock(&count);
2873 NtYieldExecution();
2874 if (count) RestoreThunkLock(count);
2875 }
2876 return FALSE;
2877 }
2878 if (msg.message & 0x80000000)
2879 {
2880 if (!(flags & PM_REMOVE))
2881 {
2882 /* Have to remove the message explicitly.
2883 Do this before handling it, because the message handler may
2884 call PeekMessage again */
2885 peek_message( &msg, msg.hwnd, msg.message, msg.message, flags | PM_REMOVE );
2886 }
2887 handle_internal_message( msg.hwnd, msg.message, msg.wParam, msg.lParam );
2888 }
2889 else break;
2890 }
2891
2892 thread_info->GetMessageTimeVal = msg.time;
2893 msg.pt.x = (short)LOWORD( thread_info->GetMessagePosVal );
2894 msg.pt.y = (short)HIWORD( thread_info->GetMessagePosVal );
2895
2896 HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, flags & PM_REMOVE, (LPARAM)&msg, TRUE );
2897
2898 /* copy back our internal safe copy of message data to msg_out.
2899 * msg_out is a variable from the *program*, so it can't be used
2900 * internally as it can get "corrupted" by our use of SendMessage()
2901 * (back to the program) inside the message handling itself. */
2902 if (!msg_out)
2903 {
2904 SetLastError( ERROR_NOACCESS );
2905 return FALSE;
2906 }
2907 *msg_out = msg;
2908 return TRUE;
2909 }
2910
2911
2912 /***********************************************************************
2913 * PeekMessageA (USER32.@)
2914 */
2915 BOOL WINAPI PeekMessageA( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
2916 {
2917 if (get_pending_wmchar( msg, first, last, (flags & PM_REMOVE) )) return TRUE;
2918 if (!PeekMessageW( msg, hwnd, first, last, flags )) return FALSE;
2919 map_wparam_WtoA( msg, (flags & PM_REMOVE) );
2920 return TRUE;
2921 }
2922
2923
2924 /***********************************************************************
2925 * GetMessageW (USER32.@)
2926 */
2927 BOOL WINAPI GetMessageW( MSG *msg, HWND hwnd, UINT first, UINT last )
2928 {
2929 HANDLE server_queue = get_server_queue_handle();
2930 int mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
2931
2932 if (first || last)
2933 {
2934 if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
2935 if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
2936 ((first <= WM_NCMOUSELAST) && (last >= WM_NCMOUSEFIRST)) ) mask |= QS_MOUSE;
2937 if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER;
2938 if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER;
2939 if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT;
2940 }
2941 else mask = QS_ALLINPUT;
2942
2943 while (!PeekMessageW( msg, hwnd, first, last, PM_REMOVE | PM_NOYIELD | (mask << 16) ))
2944 {
2945 DWORD dwlc;
2946
2947 ReleaseThunkLock( &dwlc );
2948 USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue, INFINITE, mask, 0 );
2949 if (dwlc) RestoreThunkLock( dwlc );
2950 }
2951
2952 return (msg->message != WM_QUIT);
2953 }
2954
2955
2956 /***********************************************************************
2957 * GetMessageA (USER32.@)
2958 */
2959 BOOL WINAPI GetMessageA( MSG *msg, HWND hwnd, UINT first, UINT last )
2960 {
2961 if (get_pending_wmchar( msg, first, last, TRUE )) return TRUE;
2962 GetMessageW( msg, hwnd, first, last );
2963 map_wparam_WtoA( msg, TRUE );
2964 return (msg->message != WM_QUIT);
2965 }
2966
2967
2968 /***********************************************************************
2969 * IsDialogMessageA (USER32.@)
2970 * IsDialogMessage (USER32.@)
2971 */
2972 BOOL WINAPI IsDialogMessageA( HWND hwndDlg, LPMSG pmsg )
2973 {
2974 MSG msg = *pmsg;
2975 map_wparam_AtoW( msg.message, &msg.wParam, WMCHAR_MAP_NOMAPPING );
2976 return IsDialogMessageW( hwndDlg, &msg );
2977 }
2978
2979
2980 /***********************************************************************
2981 * TranslateMessage (USER32.@)
2982 *
2983 * Implementation of TranslateMessage.
2984 *
2985 * TranslateMessage translates virtual-key messages into character-messages,
2986 * as follows :
2987 * WM_KEYDOWN/WM_KEYUP combinations produce a WM_CHAR or WM_DEADCHAR message.
2988 * ditto replacing WM_* with WM_SYS*
2989 * This produces WM_CHAR messages only for keys mapped to ASCII characters
2990 * by the keyboard driver.
2991 *
2992 * If the message is WM_KEYDOWN, WM_KEYUP, WM_SYSKEYDOWN, or WM_SYSKEYUP, the
2993 * return value is nonzero, regardless of the translation.
2994 *
2995 */
2996 BOOL WINAPI TranslateMessage( const MSG *msg )
2997 {
2998 UINT message;
2999 WCHAR wp[2];
3000 BYTE state[256];
3001
3002 if (msg->message < WM_KEYFIRST || msg->message > WM_KEYLAST) return FALSE;
3003 if (msg->message != WM_KEYDOWN && msg->message != WM_SYSKEYDOWN) return TRUE;
3004
3005 TRACE_(key)("Translating key %s (%04lx), scancode %02x\n",
3006 SPY_GetVKeyName(msg->wParam), msg->wParam, LOBYTE(HIWORD(msg->lParam)));
3007
3008 GetKeyboardState( state );
3009 /* FIXME : should handle ToUnicode yielding 2 */
3010 switch (ToUnicode(msg->wParam, HIWORD(msg->lParam), state, wp, 2, 0))
3011 {
3012 case 1:
3013 message = (msg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
3014 TRACE_(key)("1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
3015 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
3016 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
3017 break;
3018
3019 case -1:
3020 message = (msg->message == WM_KEYDOWN) ? WM_DEADCHAR : WM_SYSDEADCHAR;
3021 TRACE_(key)("-1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
3022 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
3023 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
3024 break;
3025 }
3026 return TRUE;
3027 }
3028
3029
3030 /***********************************************************************
3031 * DispatchMessageA (USER32.@)
3032 *
3033 * See DispatchMessageW.
3034 */
3035 LRESULT WINAPI DispatchMessageA( const MSG* msg )
3036 {
3037 LRESULT retval;
3038
3039 /* Process timer messages */
3040 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
3041 {
3042 if (msg->lParam) return CallWindowProcA( (WNDPROC)msg->lParam, msg->hwnd,
3043 msg->message, msg->wParam, GetTickCount() );
3044 }
3045 if (!msg->hwnd) return 0;
3046
3047 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
3048 msg->wParam, msg->lParam );
3049
3050 if (!WINPROC_call_window( msg->hwnd, msg->message, msg->wParam, msg->lParam,
3051 &retval, FALSE, WMCHAR_MAP_DISPATCHMESSAGE ))
3052 {
3053 if (!IsWindow( msg->hwnd )) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
3054 else SetLastError( ERROR_MESSAGE_SYNC_ONLY );
3055 retval = 0;
3056 }
3057
3058 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
3059 msg->wParam, msg->lParam );
3060
3061 if (msg->message == WM_PAINT)
3062 {
3063 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
3064 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
3065 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
3066 DeleteObject( hrgn );
3067 }
3068 return retval;
3069 }
3070
3071
3072 /***********************************************************************
3073 * DispatchMessageW (USER32.@) Process a message
3074 *
3075 * Process the message specified in the structure *_msg_.
3076 *
3077 * If the lpMsg parameter points to a WM_TIMER message and the
3078 * parameter of the WM_TIMER message is not NULL, the lParam parameter
3079 * points to the function that is called instead of the window
3080 * procedure.
3081 *
3082 * The message must be valid.
3083 *
3084 * RETURNS
3085 *
3086 * DispatchMessage() returns the result of the window procedure invoked.
3087 *
3088 * CONFORMANCE
3089 *
3090 * ECMA-234, Win32
3091 *
3092 */
3093 LRESULT WINAPI DispatchMessageW( const MSG* msg )
3094 {
3095 LRESULT retval;
3096
3097 /* Process timer messages */
3098 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
3099 {
3100 if (msg->lParam) return CallWindowProcW( (WNDPROC)msg->lParam, msg->hwnd,
3101 msg->message, msg->wParam, GetTickCount() );
3102 }
3103 if (!msg->hwnd) return 0;
3104
3105 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
3106 msg->wParam, msg->lParam );
3107
3108 if (!WINPROC_call_window( msg->hwnd, msg->message, msg->wParam, msg->lParam,
3109 &retval, TRUE, WMCHAR_MAP_DISPATCHMESSAGE ))
3110 {
3111 if (!IsWindow( msg->hwnd )) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
3112 else SetLastError( ERROR_MESSAGE_SYNC_ONLY );
3113 retval = 0;
3114 }
3115
3116 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
3117 msg->wParam, msg->lParam );
3118
3119 if (msg->message == WM_PAINT)
3120 {
3121 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
3122 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
3123 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
3124 DeleteObject( hrgn );
3125 }
3126 return retval;
3127 }
3128
3129
3130 /***********************************************************************
3131 * GetMessagePos (USER.119)
3132 * GetMessagePos (USER32.@)
3133 *
3134 * The GetMessagePos() function returns a long value representing a
3135 * cursor position, in screen coordinates, when the last message
3136 * retrieved by the GetMessage() function occurs. The x-coordinate is
3137 * in the low-order word of the return value, the y-coordinate is in
3138 * the high-order word. The application can use the MAKEPOINT()
3139 * macro to obtain a POINT structure from the return value.
3140 *
3141 * For the current cursor position, use GetCursorPos().
3142 *
3143 * RETURNS
3144 *
3145 * Cursor position of last message on success, zero on failure.
3146 *
3147 * CONFORMANCE
3148 *
3149 * ECMA-234, Win32
3150 *
3151 */
3152 DWORD WINAPI GetMessagePos(void)
3153 {
3154 return get_user_thread_info()->GetMessagePosVal;
3155 }
3156
3157
3158 /***********************************************************************
3159 * GetMessageTime (USER.120)
3160 * GetMessageTime (USER32.@)
3161 *
3162 * GetMessageTime() returns the message time for the last message
3163 * retrieved by the function. The time is measured in milliseconds with
3164 * the same offset as GetTickCount().
3165 *
3166 * Since the tick count wraps, this is only useful for moderately short
3167 * relative time comparisons.
3168 *
3169 * RETURNS
3170 *
3171 * Time of last message on success, zero on failure.
3172 */
3173 LONG WINAPI GetMessageTime(void)
3174 {
3175 return get_user_thread_info()->GetMessageTimeVal;
3176 }
3177
3178
3179 /***********************************************************************
3180 * GetMessageExtraInfo (USER.288)
3181 * GetMessageExtraInfo (USER32.@)
3182 */
3183 LPARAM WINAPI GetMessageExtraInfo(void)
3184 {
3185 return get_user_thread_info()->GetMessageExtraInfoVal;
3186 }
3187
3188
3189 /***********************************************************************
3190 * SetMessageExtraInfo (USER32.@)
3191 */
3192 LPARAM WINAPI SetMessageExtraInfo(LPARAM lParam)
3193 {
3194 struct user_thread_info *thread_info = get_user_thread_info();
3195 LONG old_value = thread_info->GetMessageExtraInfoVal;
3196 thread_info->GetMessageExtraInfoVal = lParam;
3197 return old_value;
3198 }
3199
3200
3201 /***********************************************************************
3202 * WaitMessage (USER.112) Suspend thread pending messages
3203 * WaitMessage (USER32.@) Suspend thread pending messages
3204 *
3205 * WaitMessage() suspends a thread until events appear in the thread's
3206 * queue.
3207 */
3208 BOOL WINAPI WaitMessage(void)
3209 {
3210 return (MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, QS_ALLINPUT, 0 ) != WAIT_FAILED);
3211 }
3212
3213
3214 /***********************************************************************
3215 * MsgWaitForMultipleObjectsEx (USER32.@)
3216 */
3217 DWORD WINAPI MsgWaitForMultipleObjectsEx( DWORD count, CONST HANDLE *pHandles,
3218 DWORD timeout, DWORD mask, DWORD flags )
3219 {
3220 HANDLE handles[MAXIMUM_WAIT_OBJECTS];
3221 DWORD i, ret, lock;
3222
3223 if (count > MAXIMUM_WAIT_OBJECTS-1)
3224 {
3225 SetLastError( ERROR_INVALID_PARAMETER );
3226 return WAIT_FAILED;
3227 }
3228
3229 /* set the queue mask */
3230 SERVER_START_REQ( set_queue_mask )
3231 {
3232 req->wake_mask = (flags & MWMO_INPUTAVAILABLE) ? mask : 0;
3233 req->changed_mask = mask;
3234 req->skip_wait = 0;
3235 wine_server_call( req );
3236 }
3237 SERVER_END_REQ;
3238
3239 /* add the queue to the handle list */
3240 for (i = 0; i < count; i++) handles[i] = pHandles[i];
3241 handles[count] = get_server_queue_handle();
3242
3243 ReleaseThunkLock( &lock );
3244 ret = USER_Driver->pMsgWaitForMultipleObjectsEx( count+1, handles, timeout, mask, flags );
3245 if (lock) RestoreThunkLock( lock );
3246 return ret;
3247 }
3248
3249
3250 /***********************************************************************
3251 * MsgWaitForMultipleObjects (USER32.@)
3252 */
3253 DWORD WINAPI MsgWaitForMultipleObjects( DWORD count, CONST HANDLE *handles,
3254 BOOL wait_all, DWORD timeout, DWORD mask )
3255 {
3256 return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
3257 wait_all ? MWMO_WAITALL : 0 );
3258 }
3259
3260
3261 /***********************************************************************
3262 * WaitForInputIdle (USER32.@)
3263 */
3264 DWORD WINAPI WaitForInputIdle( HANDLE hProcess, DWORD dwTimeOut )
3265 {
3266 DWORD start_time, elapsed, ret;
3267 HANDLE handles[2];
3268
3269 handles[0] = hProcess;
3270 SERVER_START_REQ( get_process_idle_event )
3271 {
3272 req->handle = hProcess;
3273 if (!(ret = wine_server_call_err( req ))) handles[1] = reply->event;
3274 }
3275 SERVER_END_REQ;
3276 if (ret) return WAIT_FAILED; /* error */
3277 if (!handles[1]) return 0; /* no event to wait on */
3278
3279 start_time = GetTickCount();
3280 elapsed = 0;
3281
3282 TRACE("waiting for %p\n", handles[1] );
3283 do
3284 {
3285 ret = MsgWaitForMultipleObjects ( 2, handles, FALSE, dwTimeOut - elapsed, QS_SENDMESSAGE );
3286 switch (ret)
3287 {
3288 case WAIT_OBJECT_0:
3289 return WAIT_FAILED;
3290 case WAIT_OBJECT_0+2:
3291 process_sent_messages();
3292 break;
3293 case WAIT_TIMEOUT:
3294 case WAIT_FAILED:
3295 TRACE("timeout or error\n");
3296 return ret;
3297 default:
3298 TRACE("finished\n");
3299 return 0;
3300 }
3301 if (dwTimeOut != INFINITE)
3302 {
3303 elapsed = GetTickCount() - start_time;
3304 if (elapsed > dwTimeOut)
3305 break;
3306 }
3307 }
3308 while (1);
3309
3310 return WAIT_TIMEOUT;
3311 }
3312
3313
3314 /***********************************************************************
3315 * UserYield (USER.332)
3316 */
3317 void WINAPI UserYield16(void)
3318 {
3319 DWORD count;
3320
3321 /* Handle sent messages */
3322 process_sent_messages();
3323
3324 /* Yield */
3325 ReleaseThunkLock(&count);
3326
3327 if (count)
3328 {
3329 RestoreThunkLock(count);
3330 /* Handle sent messages again */
3331 process_sent_messages();
3332 }
3333 }
3334
3335
3336 /***********************************************************************
3337 * RegisterWindowMessageA (USER32.@)
3338 * RegisterWindowMessage (USER.118)
3339 */
3340 UINT WINAPI RegisterWindowMessageA( LPCSTR str )
3341 {
3342 UINT ret = GlobalAddAtomA(str);
3343 TRACE("%s, ret=%x\n", str, ret);
3344 return ret;
3345 }
3346
3347
3348 /***********************************************************************
3349 * RegisterWindowMessageW (USER32.@)
3350 */
3351 UINT WINAPI RegisterWindowMessageW( LPCWSTR str )
3352 {
3353 UINT ret = GlobalAddAtomW(str);
3354 TRACE("%s ret=%x\n", debugstr_w(str), ret);
3355 return ret;
3356 }
3357
3358
3359 /***********************************************************************
3360 * BroadcastSystemMessageA (USER32.@)
3361 * BroadcastSystemMessage (USER32.@)
3362 */
3363 LONG WINAPI BroadcastSystemMessageA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3364 {
3365 if ((*recipients & BSM_APPLICATIONS) || (*recipients == BSM_ALLCOMPONENTS))
3366 {
3367 FIXME( "(%08x,%08x,%08x,%08lx,%08lx): semi-stub!\n", flags, *recipients, msg, wp, lp );
3368 PostMessageA( HWND_BROADCAST, msg, wp, lp );
3369 return 1;
3370 }
3371 else
3372 {
3373 FIXME( "(%08x,%08x,%08x,%08lx,%08lx): stub!\n", flags, *recipients, msg, wp, lp);
3374 return -1;
3375 }
3376 }
3377
3378
3379 /***********************************************************************
3380 * BroadcastSystemMessageW (USER32.@)
3381 */
3382 LONG WINAPI BroadcastSystemMessageW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3383 {
3384 if ((*recipients & BSM_APPLICATIONS) || (*recipients == BSM_ALLCOMPONENTS))
3385 {
3386 FIXME( "(%08x,%08x,%08x,%08lx,%08lx): semi-stub!\n", flags, *recipients, msg, wp, lp );
3387 PostMessageW( HWND_BROADCAST, msg, wp, lp );
3388 return 1;
3389 }
3390 else
3391 {
3392 FIXME( "(%08x,%08x,%08x,%08lx,%08lx): stub!\n", flags, *recipients, msg, wp, lp );
3393 return -1;
3394 }
3395 }
3396
3397
3398 /***********************************************************************
3399 * SetMessageQueue (USER32.@)
3400 */
3401 BOOL WINAPI SetMessageQueue( INT size )
3402 {
3403 /* now obsolete the message queue will be expanded dynamically as necessary */
3404 return TRUE;
3405 }
3406
3407
3408 /***********************************************************************
3409 * MessageBeep (USER32.@)
3410 */
3411 BOOL WINAPI MessageBeep( UINT i )
3412 {
3413 BOOL active = TRUE;
3414 SystemParametersInfoA( SPI_GETBEEP, 0, &active, FALSE );
3415 if (active) USER_Driver->pBeep();
3416 return TRUE;
3417 }
3418
3419
3420 /***********************************************************************
3421 * SetTimer (USER32.@)
3422 */
3423 UINT_PTR WINAPI SetTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3424 {
3425 UINT_PTR ret;
3426 WNDPROC winproc = 0;
3427
3428 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, NULL );
3429
3430 SERVER_START_REQ( set_win_timer )
3431 {
3432 req->win = hwnd;
3433 req->msg = WM_TIMER;
3434 req->id = id;
3435 req->rate = max( timeout, SYS_TIMER_RATE );
3436 req->lparam = (unsigned long)winproc;
3437 if (!wine_server_call_err( req ))
3438 {
3439 ret = reply->id;
3440 if (!ret) ret = TRUE;
3441 }
3442 else ret = 0;
3443 }
3444 SERVER_END_REQ;
3445
3446 TRACE("Added %p %lx %p timeout %d\n", hwnd, id, winproc, timeout );
3447 return ret;
3448 }
3449
3450
3451 /***********************************************************************
3452 * SetSystemTimer (USER32.@)
3453 */
3454 UINT_PTR WINAPI SetSystemTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3455 {
3456 UINT_PTR ret;
3457 WNDPROC winproc = 0;
3458
3459 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, NULL );
3460
3461 SERVER_START_REQ( set_win_timer )
3462 {
3463 req->win = hwnd;
3464 req->msg = WM_SYSTIMER;
3465 req->id = id;
3466 req->rate = max( timeout, SYS_TIMER_RATE );
3467 req->lparam = (unsigned long)winproc;
3468 if (!wine_server_call_err( req ))
3469 {
3470 ret = reply->id;
3471 if (!ret) ret = TRUE;
3472 }
3473 else ret = 0;
3474 }
3475 SERVER_END_REQ;
3476
3477 TRACE("Added %p %lx %p timeout %d\n", hwnd, id, winproc, timeout );
3478 return ret;
3479 }
3480
3481
3482 /***********************************************************************
3483 * KillTimer (USER32.@)
3484 */
3485 BOOL WINAPI KillTimer( HWND hwnd, UINT_PTR id )
3486 {
3487 BOOL ret;
3488
3489 SERVER_START_REQ( kill_win_timer )
3490 {
3491 req->win = hwnd;
3492 req->msg = WM_TIMER;
3493 req->id = id;
3494 ret = !wine_server_call_err( req );
3495 }
3496 SERVER_END_REQ;
3497 return ret;
3498 }
3499
3500
3501 /***********************************************************************
3502 * KillSystemTimer (USER32.@)
3503 */
3504 BOOL WINAPI KillSystemTimer( HWND hwnd, UINT_PTR id )
3505 {
3506 BOOL ret;
3507
3508 SERVER_START_REQ( kill_win_timer )
3509 {
3510 req->win = hwnd;
3511 req->msg = WM_SYSTIMER;
3512 req->id = id;
3513 ret = !wine_server_call_err( req );
3514 }
3515 SERVER_END_REQ;
3516 return ret;
3517 }
3518
3519
3520 /**********************************************************************
3521 * GetGUIThreadInfo (USER32.@)
3522 */
3523 BOOL WINAPI GetGUIThreadInfo( DWORD id, GUITHREADINFO *info )
3524 {
3525 BOOL ret;
3526
3527 SERVER_START_REQ( get_thread_input )
3528 {
3529 req->tid = id;
3530 if ((ret = !wine_server_call_err( req )))
3531 {
3532 info->flags = 0;
3533 info->hwndActive = reply->active;
3534 info->hwndFocus = reply->focus;
3535 info->hwndCapture = reply->capture;
3536 info->hwndMenuOwner = reply->menu_owner;
3537 info->hwndMoveSize = reply->move_size;
3538 info->hwndCaret = reply->caret;
3539 info->rcCaret.left = reply->rect.left;
3540 info->rcCaret.top = reply->rect.top;
3541 info->rcCaret.right = reply->rect.right;
3542 info->rcCaret.bottom = reply->rect.bottom;
3543 if (reply->menu_owner) info->flags |= GUI_INMENUMODE;
3544 if (reply->move_size) info->flags |= GUI_INMOVESIZE;
3545 if (reply->caret) info->flags |= GUI_CARETBLINKING;
3546 }
3547 }
3548 SERVER_END_REQ;
3549 return ret;
3550 }
3551
3552
3553 /******************************************************************
3554 * IsHungAppWindow (USER32.@)
3555 *
3556 */
3557 BOOL WINAPI IsHungAppWindow( HWND hWnd )
3558 {
3559 BOOL ret;
3560
3561 SERVER_START_REQ( is_window_hung )
3562 {
3563 req->win = hWnd;
3564 ret = !wine_server_call_err( req ) && reply->is_hung;
3565 }
3566 SERVER_END_REQ;
3567 return ret;
3568 }
useful hacks and other patches not (yet) suitable for mainline