?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
user32: Use a local buffer in peek_message to save a server call for small buffer...
[wine/multimedia.git] / dlls / user32 / message.c
blobaeda7b37eb60b5677a9481d330ab73173e2057ef
1 /*
2 * Window messaging support
3 *
4 * Copyright 2001 Alexandre Julliard
5 * Copyright 2008 Maarten Lankhorst
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22 #include "config.h"
23 #include "wine/port.h"
24
25 #include <assert.h>
26 #include <stdarg.h>
27
28 #include "ntstatus.h"
29 #define WIN32_NO_STATUS
30 #include "windef.h"
31 #include "winbase.h"
32 #include "wingdi.h"
33 #include "winuser.h"
34 #include "winerror.h"
35 #include "winnls.h"
36 #include "dbt.h"
37 #include "dde.h"
38 #include "imm.h"
39 #include "ddk/imm.h"
40 #include "wine/unicode.h"
41 #include "wine/server.h"
42 #include "user_private.h"
43 #include "win.h"
44 #include "controls.h"
45 #include "wine/debug.h"
46
47 WINE_DEFAULT_DEBUG_CHANNEL(msg);
48 WINE_DECLARE_DEBUG_CHANNEL(relay);
49 WINE_DECLARE_DEBUG_CHANNEL(key);
50
51 #define WM_NCMOUSEFIRST WM_NCMOUSEMOVE
52 #define WM_NCMOUSELAST (WM_NCMOUSEFIRST+(WM_MOUSELAST-WM_MOUSEFIRST))
53
54 #define MAX_PACK_COUNT 4
55
56 #define SYS_TIMER_RATE 55 /* min. timer rate in ms (actually 54.925)*/
57
58 /* description of the data fields that need to be packed along with a sent message */
59 struct packed_message
60 {
61 int count;
62 const void *data[MAX_PACK_COUNT];
63 size_t size[MAX_PACK_COUNT];
64 };
65
66 /* info about the message currently being received by the current thread */
67 struct received_message_info
68 {
69 enum message_type type;
70 MSG msg;
71 UINT flags; /* InSendMessageEx return flags */
72 };
73
74 /* structure to group all parameters for sent messages of the various kinds */
75 struct send_message_info
76 {
77 enum message_type type;
78 DWORD dest_tid;
79 HWND hwnd;
80 UINT msg;
81 WPARAM wparam;
82 LPARAM lparam;
83 UINT flags; /* flags for SendMessageTimeout */
84 UINT timeout; /* timeout for SendMessageTimeout */
85 SENDASYNCPROC callback; /* callback function for SendMessageCallback */
86 ULONG_PTR data; /* callback data */
87 enum wm_char_mapping wm_char;
88 };
89
90
91 /* Message class descriptor */
92 static const WCHAR messageW[] = {'M','e','s','s','a','g','e',0};
93 static LRESULT WINAPI message_winproc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam );
94 const struct builtin_class_descr MESSAGE_builtin_class =
95 {
96 messageW, /* name */
97 0, /* style */
98 NULL, /* procA (winproc is Unicode only) */
99 message_winproc, /* procW */
100 0, /* extra */
101 IDC_ARROW, /* cursor */
102 0 /* brush */
103 };
104
105
106
107 /* flag for messages that contain pointers */
108 /* 32 messages per entry, messages 0..31 map to bits 0..31 */
109
110 #define SET(msg) (1 << ((msg) & 31))
111
112 static const unsigned int message_pointer_flags[] =
113 {
114 /* 0x00 - 0x1f */
115 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) |
116 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
117 /* 0x20 - 0x3f */
118 SET(WM_GETMINMAXINFO) | SET(WM_DRAWITEM) | SET(WM_MEASUREITEM) | SET(WM_DELETEITEM) |
119 SET(WM_COMPAREITEM),
120 /* 0x40 - 0x5f */
121 SET(WM_WINDOWPOSCHANGING) | SET(WM_WINDOWPOSCHANGED) | SET(WM_COPYDATA) |
122 SET(WM_NOTIFY) | SET(WM_HELP),
123 /* 0x60 - 0x7f */
124 SET(WM_STYLECHANGING) | SET(WM_STYLECHANGED),
125 /* 0x80 - 0x9f */
126 SET(WM_NCCREATE) | SET(WM_NCCALCSIZE) | SET(WM_GETDLGCODE),
127 /* 0xa0 - 0xbf */
128 SET(EM_GETSEL) | SET(EM_GETRECT) | SET(EM_SETRECT) | SET(EM_SETRECTNP),
129 /* 0xc0 - 0xdf */
130 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETTABSTOPS),
131 /* 0xe0 - 0xff */
132 SET(SBM_GETRANGE) | SET(SBM_SETSCROLLINFO) | SET(SBM_GETSCROLLINFO) | SET(SBM_GETSCROLLBARINFO),
133 /* 0x100 - 0x11f */
134 0,
135 /* 0x120 - 0x13f */
136 0,
137 /* 0x140 - 0x15f */
138 SET(CB_GETEDITSEL) | SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) |
139 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) |
140 SET(CB_GETDROPPEDCONTROLRECT) | SET(CB_FINDSTRINGEXACT),
141 /* 0x160 - 0x17f */
142 0,
143 /* 0x180 - 0x19f */
144 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_SELECTSTRING) |
145 SET(LB_DIR) | SET(LB_FINDSTRING) |
146 SET(LB_GETSELITEMS) | SET(LB_SETTABSTOPS) | SET(LB_ADDFILE) | SET(LB_GETITEMRECT),
147 /* 0x1a0 - 0x1bf */
148 SET(LB_FINDSTRINGEXACT),
149 /* 0x1c0 - 0x1df */
150 0,
151 /* 0x1e0 - 0x1ff */
152 0,
153 /* 0x200 - 0x21f */
154 SET(WM_NEXTMENU) | SET(WM_SIZING) | SET(WM_MOVING) | SET(WM_DEVICECHANGE),
155 /* 0x220 - 0x23f */
156 SET(WM_MDICREATE) | SET(WM_MDIGETACTIVE) | SET(WM_DROPOBJECT) |
157 SET(WM_QUERYDROPOBJECT) | SET(WM_DRAGLOOP) | SET(WM_DRAGSELECT) | SET(WM_DRAGMOVE),
158 /* 0x240 - 0x25f */
159 0,
160 /* 0x260 - 0x27f */
161 0,
162 /* 0x280 - 0x29f */
163 0,
164 /* 0x2a0 - 0x2bf */
165 0,
166 /* 0x2c0 - 0x2df */
167 0,
168 /* 0x2e0 - 0x2ff */
169 0,
170 /* 0x300 - 0x31f */
171 SET(WM_ASKCBFORMATNAME)
172 };
173
174 /* flags for messages that contain Unicode strings */
175 static const unsigned int message_unicode_flags[] =
176 {
177 /* 0x00 - 0x1f */
178 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) | SET(WM_GETTEXTLENGTH) |
179 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
180 /* 0x20 - 0x3f */
181 SET(WM_CHARTOITEM),
182 /* 0x40 - 0x5f */
183 0,
184 /* 0x60 - 0x7f */
185 0,
186 /* 0x80 - 0x9f */
187 SET(WM_NCCREATE),
188 /* 0xa0 - 0xbf */
189 0,
190 /* 0xc0 - 0xdf */
191 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETPASSWORDCHAR),
192 /* 0xe0 - 0xff */
193 0,
194 /* 0x100 - 0x11f */
195 SET(WM_CHAR) | SET(WM_DEADCHAR) | SET(WM_SYSCHAR) | SET(WM_SYSDEADCHAR),
196 /* 0x120 - 0x13f */
197 SET(WM_MENUCHAR),
198 /* 0x140 - 0x15f */
199 SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) | SET(CB_GETLBTEXTLEN) |
200 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) | SET(CB_FINDSTRINGEXACT),
201 /* 0x160 - 0x17f */
202 0,
203 /* 0x180 - 0x19f */
204 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_GETTEXTLEN) |
205 SET(LB_SELECTSTRING) | SET(LB_DIR) | SET(LB_FINDSTRING) | SET(LB_ADDFILE),
206 /* 0x1a0 - 0x1bf */
207 SET(LB_FINDSTRINGEXACT),
208 /* 0x1c0 - 0x1df */
209 0,
210 /* 0x1e0 - 0x1ff */
211 0,
212 /* 0x200 - 0x21f */
213 0,
214 /* 0x220 - 0x23f */
215 SET(WM_MDICREATE),
216 /* 0x240 - 0x25f */
217 0,
218 /* 0x260 - 0x27f */
219 0,
220 /* 0x280 - 0x29f */
221 SET(WM_IME_CHAR),
222 /* 0x2a0 - 0x2bf */
223 0,
224 /* 0x2c0 - 0x2df */
225 0,
226 /* 0x2e0 - 0x2ff */
227 0,
228 /* 0x300 - 0x31f */
229 SET(WM_PAINTCLIPBOARD) | SET(WM_SIZECLIPBOARD) | SET(WM_ASKCBFORMATNAME)
230 };
231
232 /* check whether a given message type includes pointers */
233 static inline int is_pointer_message( UINT message )
234 {
235 if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
236 return (message_pointer_flags[message / 32] & SET(message)) != 0;
237 }
238
239 /* check whether a given message type contains Unicode (or ASCII) chars */
240 static inline int is_unicode_message( UINT message )
241 {
242 if (message >= 8*sizeof(message_unicode_flags)) return FALSE;
243 return (message_unicode_flags[message / 32] & SET(message)) != 0;
244 }
245
246 #undef SET
247
248 /* add a data field to a packed message */
249 static inline void push_data( struct packed_message *data, const void *ptr, size_t size )
250 {
251 data->data[data->count] = ptr;
252 data->size[data->count] = size;
253 data->count++;
254 }
255
256 /* add a string to a packed message */
257 static inline void push_string( struct packed_message *data, LPCWSTR str )
258 {
259 push_data( data, str, (strlenW(str) + 1) * sizeof(WCHAR) );
260 }
261
262 /* make sure that the buffer contains a valid null-terminated Unicode string */
263 static inline BOOL check_string( LPCWSTR str, size_t size )
264 {
265 for (size /= sizeof(WCHAR); size; size--, str++)
266 if (!*str) return TRUE;
267 return FALSE;
268 }
269
270 /* make sure that there is space for 'size' bytes in buffer, growing it if needed */
271 static inline void *get_buffer_space( void **buffer, size_t size )
272 {
273 void *ret;
274
275 if (*buffer)
276 {
277 if (!(ret = HeapReAlloc( GetProcessHeap(), 0, *buffer, size )))
278 HeapFree( GetProcessHeap(), 0, *buffer );
279 }
280 else ret = HeapAlloc( GetProcessHeap(), 0, size );
281
282 *buffer = ret;
283 return ret;
284 }
285
286 /* check whether a combobox expects strings or ids in CB_ADDSTRING/CB_INSERTSTRING */
287 static inline BOOL combobox_has_strings( HWND hwnd )
288 {
289 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
290 return (!(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) || (style & CBS_HASSTRINGS));
291 }
292
293 /* check whether a listbox expects strings or ids in LB_ADDSTRING/LB_INSERTSTRING */
294 static inline BOOL listbox_has_strings( HWND hwnd )
295 {
296 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
297 return (!(style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE)) || (style & LBS_HASSTRINGS));
298 }
299
300 /* check whether message is in the range of keyboard messages */
301 static inline BOOL is_keyboard_message( UINT message )
302 {
303 return (message >= WM_KEYFIRST && message <= WM_KEYLAST);
304 }
305
306 /* check whether message is in the range of mouse messages */
307 static inline BOOL is_mouse_message( UINT message )
308 {
309 return ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) ||
310 (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST));
311 }
312
313 /* check whether message matches the specified hwnd filter */
314 static inline BOOL check_hwnd_filter( const MSG *msg, HWND hwnd_filter )
315 {
316 if (!hwnd_filter || hwnd_filter == GetDesktopWindow()) return TRUE;
317 return (msg->hwnd == hwnd_filter || IsChild( hwnd_filter, msg->hwnd ));
318 }
319
320 /* check for pending WM_CHAR message with DBCS trailing byte */
321 static inline BOOL get_pending_wmchar( MSG *msg, UINT first, UINT last, BOOL remove )
322 {
323 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
324
325 if (!data || !data->get_msg.message) return FALSE;
326 if ((first || last) && (first > WM_CHAR || last < WM_CHAR)) return FALSE;
327 if (!msg) return FALSE;
328 *msg = data->get_msg;
329 if (remove) data->get_msg.message = 0;
330 return TRUE;
331 }
332
333
334 /***********************************************************************
335 * message_winproc
336 *
337 * Window procedure for "Message" windows (HWND_MESSAGE parent).
338 */
339 static LRESULT WINAPI message_winproc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
340 {
341 if (message == WM_NCCREATE) return TRUE;
342 return 0; /* all other messages are ignored */
343 }
344
345
346 /***********************************************************************
347 * broadcast_message_callback
348 *
349 * Helper callback for broadcasting messages.
350 */
351 static BOOL CALLBACK broadcast_message_callback( HWND hwnd, LPARAM lparam )
352 {
353 struct send_message_info *info = (struct send_message_info *)lparam;
354 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & (WS_POPUP|WS_CAPTION))) return TRUE;
355 switch(info->type)
356 {
357 case MSG_UNICODE:
358 SendMessageTimeoutW( hwnd, info->msg, info->wparam, info->lparam,
359 info->flags, info->timeout, NULL );
360 break;
361 case MSG_ASCII:
362 SendMessageTimeoutA( hwnd, info->msg, info->wparam, info->lparam,
363 info->flags, info->timeout, NULL );
364 break;
365 case MSG_NOTIFY:
366 SendNotifyMessageW( hwnd, info->msg, info->wparam, info->lparam );
367 break;
368 case MSG_CALLBACK:
369 SendMessageCallbackW( hwnd, info->msg, info->wparam, info->lparam,
370 info->callback, info->data );
371 break;
372 case MSG_POSTED:
373 PostMessageW( hwnd, info->msg, info->wparam, info->lparam );
374 break;
375 default:
376 ERR( "bad type %d\n", info->type );
377 break;
378 }
379 return TRUE;
380 }
381
382
383 /***********************************************************************
384 * map_wparam_AtoW
385 *
386 * Convert the wparam of an ASCII message to Unicode.
387 */
388 BOOL map_wparam_AtoW( UINT message, WPARAM *wparam, enum wm_char_mapping mapping )
389 {
390 char ch[2];
391 WCHAR wch[2];
392
393 wch[0] = wch[1] = 0;
394 switch(message)
395 {
396 case WM_CHAR:
397 /* WM_CHAR is magic: a DBCS char can be sent/posted as two consecutive WM_CHAR
398 * messages, in which case the first char is stored, and the conversion
399 * to Unicode only takes place once the second char is sent/posted.
400 */
401 if (mapping != WMCHAR_MAP_NOMAPPING)
402 {
403 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
404 BYTE low = LOBYTE(*wparam);
405
406 if (HIBYTE(*wparam))
407 {
408 ch[0] = low;
409 ch[1] = HIBYTE(*wparam);
410 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
411 TRACE( "map %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
412 if (data) data->lead_byte[mapping] = 0;
413 }
414 else if (data && data->lead_byte[mapping])
415 {
416 ch[0] = data->lead_byte[mapping];
417 ch[1] = low;
418 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
419 TRACE( "map stored %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
420 data->lead_byte[mapping] = 0;
421 }
422 else if (!IsDBCSLeadByte( low ))
423 {
424 ch[0] = low;
425 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 1 );
426 TRACE( "map %02x -> %04x\n", (BYTE)ch[0], wch[0] );
427 if (data) data->lead_byte[mapping] = 0;
428 }
429 else /* store it and wait for trail byte */
430 {
431 if (!data)
432 {
433 if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) )))
434 return FALSE;
435 get_user_thread_info()->wmchar_data = data;
436 }
437 TRACE( "storing lead byte %02x mapping %u\n", low, mapping );
438 data->lead_byte[mapping] = low;
439 return FALSE;
440 }
441 *wparam = MAKEWPARAM(wch[0], wch[1]);
442 break;
443 }
444 /* else fall through */
445 case WM_CHARTOITEM:
446 case EM_SETPASSWORDCHAR:
447 case WM_DEADCHAR:
448 case WM_SYSCHAR:
449 case WM_SYSDEADCHAR:
450 case WM_MENUCHAR:
451 ch[0] = LOBYTE(*wparam);
452 ch[1] = HIBYTE(*wparam);
453 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
454 *wparam = MAKEWPARAM(wch[0], wch[1]);
455 break;
456 case WM_IME_CHAR:
457 ch[0] = HIBYTE(*wparam);
458 ch[1] = LOBYTE(*wparam);
459 if (ch[0]) RtlMultiByteToUnicodeN( wch, sizeof(wch[0]), NULL, ch, 2 );
460 else RtlMultiByteToUnicodeN( wch, sizeof(wch[0]), NULL, ch + 1, 1 );
461 *wparam = MAKEWPARAM(wch[0], HIWORD(*wparam));
462 break;
463 }
464 return TRUE;
465 }
466
467
468 /***********************************************************************
469 * map_wparam_WtoA
470 *
471 * Convert the wparam of a Unicode message to ASCII.
472 */
473 static void map_wparam_WtoA( MSG *msg, BOOL remove )
474 {
475 BYTE ch[2];
476 WCHAR wch[2];
477 DWORD len;
478
479 switch(msg->message)
480 {
481 case WM_CHAR:
482 if (!HIWORD(msg->wParam))
483 {
484 wch[0] = LOWORD(msg->wParam);
485 ch[0] = ch[1] = 0;
486 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, &len, wch, sizeof(wch[0]) );
487 if (len == 2) /* DBCS char */
488 {
489 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
490 if (!data)
491 {
492 if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) ))) return;
493 get_user_thread_info()->wmchar_data = data;
494 }
495 if (remove)
496 {
497 data->get_msg = *msg;
498 data->get_msg.wParam = ch[1];
499 }
500 msg->wParam = ch[0];
501 return;
502 }
503 }
504 /* else fall through */
505 case WM_CHARTOITEM:
506 case EM_SETPASSWORDCHAR:
507 case WM_DEADCHAR:
508 case WM_SYSCHAR:
509 case WM_SYSDEADCHAR:
510 case WM_MENUCHAR:
511 wch[0] = LOWORD(msg->wParam);
512 wch[1] = HIWORD(msg->wParam);
513 ch[0] = ch[1] = 0;
514 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, NULL, wch, sizeof(wch) );
515 msg->wParam = MAKEWPARAM( ch[0] | (ch[1] << 8), 0 );
516 break;
517 case WM_IME_CHAR:
518 wch[0] = LOWORD(msg->wParam);
519 ch[0] = ch[1] = 0;
520 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, &len, wch, sizeof(wch[0]) );
521 if (len == 2)
522 msg->wParam = MAKEWPARAM( (ch[0] << 8) | ch[1], HIWORD(msg->wParam) );
523 else
524 msg->wParam = MAKEWPARAM( ch[0], HIWORD(msg->wParam) );
525 break;
526 }
527 }
528
529
530 /***********************************************************************
531 * pack_message
532 *
533 * Pack a message for sending to another process.
534 * Return the size of the data we expect in the message reply.
535 * Set data->count to -1 if there is an error.
536 */
537 static size_t pack_message( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
538 struct packed_message *data )
539 {
540 data->count = 0;
541 switch(message)
542 {
543 case WM_NCCREATE:
544 case WM_CREATE:
545 {
546 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
547 push_data( data, cs, sizeof(*cs) );
548 if (HIWORD(cs->lpszName)) push_string( data, cs->lpszName );
549 if (HIWORD(cs->lpszClass)) push_string( data, cs->lpszClass );
550 return sizeof(*cs);
551 }
552 case WM_GETTEXT:
553 case WM_ASKCBFORMATNAME:
554 return wparam * sizeof(WCHAR);
555 case WM_WININICHANGE:
556 if (lparam) push_string(data, (LPWSTR)lparam );
557 return 0;
558 case WM_SETTEXT:
559 case WM_DEVMODECHANGE:
560 case CB_DIR:
561 case LB_DIR:
562 case LB_ADDFILE:
563 case EM_REPLACESEL:
564 push_string( data, (LPWSTR)lparam );
565 return 0;
566 case WM_GETMINMAXINFO:
567 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
568 return sizeof(MINMAXINFO);
569 case WM_DRAWITEM:
570 push_data( data, (DRAWITEMSTRUCT *)lparam, sizeof(DRAWITEMSTRUCT) );
571 return 0;
572 case WM_MEASUREITEM:
573 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
574 return sizeof(MEASUREITEMSTRUCT);
575 case WM_DELETEITEM:
576 push_data( data, (DELETEITEMSTRUCT *)lparam, sizeof(DELETEITEMSTRUCT) );
577 return 0;
578 case WM_COMPAREITEM:
579 push_data( data, (COMPAREITEMSTRUCT *)lparam, sizeof(COMPAREITEMSTRUCT) );
580 return 0;
581 case WM_WINDOWPOSCHANGING:
582 case WM_WINDOWPOSCHANGED:
583 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
584 return sizeof(WINDOWPOS);
585 case WM_COPYDATA:
586 {
587 COPYDATASTRUCT *cp = (COPYDATASTRUCT *)lparam;
588 push_data( data, cp, sizeof(*cp) );
589 if (cp->lpData) push_data( data, cp->lpData, cp->cbData );
590 return 0;
591 }
592 case WM_NOTIFY:
593 /* WM_NOTIFY cannot be sent across processes (MSDN) */
594 data->count = -1;
595 return 0;
596 case WM_HELP:
597 push_data( data, (HELPINFO *)lparam, sizeof(HELPINFO) );
598 return 0;
599 case WM_STYLECHANGING:
600 case WM_STYLECHANGED:
601 push_data( data, (STYLESTRUCT *)lparam, sizeof(STYLESTRUCT) );
602 return 0;
603 case WM_NCCALCSIZE:
604 if (!wparam)
605 {
606 push_data( data, (RECT *)lparam, sizeof(RECT) );
607 return sizeof(RECT);
608 }
609 else
610 {
611 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
612 push_data( data, nc, sizeof(*nc) );
613 push_data( data, nc->lppos, sizeof(*nc->lppos) );
614 return sizeof(*nc) + sizeof(*nc->lppos);
615 }
616 case WM_GETDLGCODE:
617 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
618 return sizeof(MSG);
619 case SBM_SETSCROLLINFO:
620 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
621 return 0;
622 case SBM_GETSCROLLINFO:
623 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
624 return sizeof(SCROLLINFO);
625 case SBM_GETSCROLLBARINFO:
626 {
627 const SCROLLBARINFO *info = (const SCROLLBARINFO *)lparam;
628 size_t size = min( info->cbSize, sizeof(SCROLLBARINFO) );
629 push_data( data, info, size );
630 return size;
631 }
632 case EM_GETSEL:
633 case SBM_GETRANGE:
634 case CB_GETEDITSEL:
635 {
636 size_t size = 0;
637 if (wparam) size += sizeof(DWORD);
638 if (lparam) size += sizeof(DWORD);
639 return size;
640 }
641 case EM_GETRECT:
642 case LB_GETITEMRECT:
643 case CB_GETDROPPEDCONTROLRECT:
644 return sizeof(RECT);
645 case EM_SETRECT:
646 case EM_SETRECTNP:
647 push_data( data, (RECT *)lparam, sizeof(RECT) );
648 return 0;
649 case EM_GETLINE:
650 {
651 WORD *pw = (WORD *)lparam;
652 push_data( data, pw, sizeof(*pw) );
653 return *pw * sizeof(WCHAR);
654 }
655 case EM_SETTABSTOPS:
656 case LB_SETTABSTOPS:
657 if (wparam) push_data( data, (UINT *)lparam, sizeof(UINT) * wparam );
658 return 0;
659 case CB_ADDSTRING:
660 case CB_INSERTSTRING:
661 case CB_FINDSTRING:
662 case CB_FINDSTRINGEXACT:
663 case CB_SELECTSTRING:
664 if (combobox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
665 return 0;
666 case CB_GETLBTEXT:
667 if (!combobox_has_strings( hwnd )) return sizeof(ULONG_PTR);
668 return (SendMessageW( hwnd, CB_GETLBTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
669 case LB_ADDSTRING:
670 case LB_INSERTSTRING:
671 case LB_FINDSTRING:
672 case LB_FINDSTRINGEXACT:
673 case LB_SELECTSTRING:
674 if (listbox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
675 return 0;
676 case LB_GETTEXT:
677 if (!listbox_has_strings( hwnd )) return sizeof(ULONG_PTR);
678 return (SendMessageW( hwnd, LB_GETTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
679 case LB_GETSELITEMS:
680 return wparam * sizeof(UINT);
681 case WM_NEXTMENU:
682 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
683 return sizeof(MDINEXTMENU);
684 case WM_SIZING:
685 case WM_MOVING:
686 push_data( data, (RECT *)lparam, sizeof(RECT) );
687 return sizeof(RECT);
688 case WM_MDICREATE:
689 {
690 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
691 push_data( data, cs, sizeof(*cs) );
692 if (HIWORD(cs->szTitle)) push_string( data, cs->szTitle );
693 if (HIWORD(cs->szClass)) push_string( data, cs->szClass );
694 return sizeof(*cs);
695 }
696 case WM_MDIGETACTIVE:
697 if (lparam) return sizeof(BOOL);
698 return 0;
699 case WM_DEVICECHANGE:
700 {
701 DEV_BROADCAST_HDR *header = (DEV_BROADCAST_HDR *)lparam;
702 push_data( data, header, header->dbch_size );
703 return 0;
704 }
705 case WM_WINE_SETWINDOWPOS:
706 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
707 return 0;
708 case WM_WINE_KEYBOARD_LL_HOOK:
709 {
710 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
711 push_data( data, h_extra, sizeof(*h_extra) );
712 push_data( data, (LPVOID)h_extra->lparam, sizeof(KBDLLHOOKSTRUCT) );
713 return 0;
714 }
715 case WM_WINE_MOUSE_LL_HOOK:
716 {
717 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
718 push_data( data, h_extra, sizeof(*h_extra) );
719 push_data( data, (LPVOID)h_extra->lparam, sizeof(MSLLHOOKSTRUCT) );
720 return 0;
721 }
722 case WM_NCPAINT:
723 if (wparam <= 1) return 0;
724 FIXME( "WM_NCPAINT hdc packing not supported yet\n" );
725 data->count = -1;
726 return 0;
727 case WM_PAINT:
728 if (!wparam) return 0;
729 /* fall through */
730
731 /* these contain an HFONT */
732 case WM_SETFONT:
733 case WM_GETFONT:
734 /* these contain an HDC */
735 case WM_ERASEBKGND:
736 case WM_ICONERASEBKGND:
737 case WM_CTLCOLORMSGBOX:
738 case WM_CTLCOLOREDIT:
739 case WM_CTLCOLORLISTBOX:
740 case WM_CTLCOLORBTN:
741 case WM_CTLCOLORDLG:
742 case WM_CTLCOLORSCROLLBAR:
743 case WM_CTLCOLORSTATIC:
744 case WM_PRINT:
745 case WM_PRINTCLIENT:
746 /* these contain an HGLOBAL */
747 case WM_PAINTCLIPBOARD:
748 case WM_SIZECLIPBOARD:
749 /* these contain HICON */
750 case WM_GETICON:
751 case WM_SETICON:
752 case WM_QUERYDRAGICON:
753 case WM_QUERYPARKICON:
754 /* these contain pointers */
755 case WM_DROPOBJECT:
756 case WM_QUERYDROPOBJECT:
757 case WM_DRAGLOOP:
758 case WM_DRAGSELECT:
759 case WM_DRAGMOVE:
760 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
761 data->count = -1;
762 return 0;
763 }
764 return 0;
765 }
766
767
768 /***********************************************************************
769 * unpack_message
770 *
771 * Unpack a message received from another process.
772 */
773 static BOOL unpack_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
774 void **buffer, size_t size )
775 {
776 size_t minsize = 0;
777
778 switch(message)
779 {
780 case WM_NCCREATE:
781 case WM_CREATE:
782 {
783 CREATESTRUCTW *cs = *buffer;
784 WCHAR *str = (WCHAR *)(cs + 1);
785 if (size < sizeof(*cs)) return FALSE;
786 size -= sizeof(*cs);
787 if (HIWORD(cs->lpszName))
788 {
789 if (!check_string( str, size )) return FALSE;
790 cs->lpszName = str;
791 size -= (strlenW(str) + 1) * sizeof(WCHAR);
792 str += strlenW(str) + 1;
793 }
794 if (HIWORD(cs->lpszClass))
795 {
796 if (!check_string( str, size )) return FALSE;
797 cs->lpszClass = str;
798 }
799 break;
800 }
801 case WM_GETTEXT:
802 case WM_ASKCBFORMATNAME:
803 if (!get_buffer_space( buffer, (*wparam * sizeof(WCHAR)) )) return FALSE;
804 break;
805 case WM_WININICHANGE:
806 if (!*lparam) return TRUE;
807 /* fall through */
808 case WM_SETTEXT:
809 case WM_DEVMODECHANGE:
810 case CB_DIR:
811 case LB_DIR:
812 case LB_ADDFILE:
813 case EM_REPLACESEL:
814 if (!check_string( *buffer, size )) return FALSE;
815 break;
816 case WM_GETMINMAXINFO:
817 minsize = sizeof(MINMAXINFO);
818 break;
819 case WM_DRAWITEM:
820 minsize = sizeof(DRAWITEMSTRUCT);
821 break;
822 case WM_MEASUREITEM:
823 minsize = sizeof(MEASUREITEMSTRUCT);
824 break;
825 case WM_DELETEITEM:
826 minsize = sizeof(DELETEITEMSTRUCT);
827 break;
828 case WM_COMPAREITEM:
829 minsize = sizeof(COMPAREITEMSTRUCT);
830 break;
831 case WM_WINDOWPOSCHANGING:
832 case WM_WINDOWPOSCHANGED:
833 case WM_WINE_SETWINDOWPOS:
834 minsize = sizeof(WINDOWPOS);
835 break;
836 case WM_COPYDATA:
837 {
838 COPYDATASTRUCT *cp = *buffer;
839 if (size < sizeof(*cp)) return FALSE;
840 if (cp->lpData)
841 {
842 minsize = sizeof(*cp) + cp->cbData;
843 cp->lpData = cp + 1;
844 }
845 break;
846 }
847 case WM_NOTIFY:
848 /* WM_NOTIFY cannot be sent across processes (MSDN) */
849 return FALSE;
850 case WM_HELP:
851 minsize = sizeof(HELPINFO);
852 break;
853 case WM_STYLECHANGING:
854 case WM_STYLECHANGED:
855 minsize = sizeof(STYLESTRUCT);
856 break;
857 case WM_NCCALCSIZE:
858 if (!*wparam) minsize = sizeof(RECT);
859 else
860 {
861 NCCALCSIZE_PARAMS *nc = *buffer;
862 if (size < sizeof(*nc) + sizeof(*nc->lppos)) return FALSE;
863 nc->lppos = (WINDOWPOS *)(nc + 1);
864 }
865 break;
866 case WM_GETDLGCODE:
867 if (!*lparam) return TRUE;
868 minsize = sizeof(MSG);
869 break;
870 case SBM_SETSCROLLINFO:
871 minsize = sizeof(SCROLLINFO);
872 break;
873 case SBM_GETSCROLLINFO:
874 if (!get_buffer_space( buffer, sizeof(SCROLLINFO ))) return FALSE;
875 break;
876 case SBM_GETSCROLLBARINFO:
877 if (!get_buffer_space( buffer, sizeof(SCROLLBARINFO ))) return FALSE;
878 break;
879 case EM_GETSEL:
880 case SBM_GETRANGE:
881 case CB_GETEDITSEL:
882 if (*wparam || *lparam)
883 {
884 if (!get_buffer_space( buffer, 2*sizeof(DWORD) )) return FALSE;
885 if (*wparam) *wparam = (WPARAM)*buffer;
886 if (*lparam) *lparam = (LPARAM)((DWORD *)*buffer + 1);
887 }
888 return TRUE;
889 case EM_GETRECT:
890 case LB_GETITEMRECT:
891 case CB_GETDROPPEDCONTROLRECT:
892 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
893 break;
894 case EM_SETRECT:
895 case EM_SETRECTNP:
896 minsize = sizeof(RECT);
897 break;
898 case EM_GETLINE:
899 {
900 WORD len;
901 if (size < sizeof(WORD)) return FALSE;
902 len = *(WORD *)*buffer;
903 if (!get_buffer_space( buffer, (len + 1) * sizeof(WCHAR) )) return FALSE;
904 *lparam = (LPARAM)*buffer + sizeof(WORD); /* don't erase WORD at start of buffer */
905 return TRUE;
906 }
907 case EM_SETTABSTOPS:
908 case LB_SETTABSTOPS:
909 if (!*wparam) return TRUE;
910 minsize = *wparam * sizeof(UINT);
911 break;
912 case CB_ADDSTRING:
913 case CB_INSERTSTRING:
914 case CB_FINDSTRING:
915 case CB_FINDSTRINGEXACT:
916 case CB_SELECTSTRING:
917 case LB_ADDSTRING:
918 case LB_INSERTSTRING:
919 case LB_FINDSTRING:
920 case LB_FINDSTRINGEXACT:
921 case LB_SELECTSTRING:
922 if (!*buffer) return TRUE;
923 if (!check_string( *buffer, size )) return FALSE;
924 break;
925 case CB_GETLBTEXT:
926 {
927 size = sizeof(ULONG_PTR);
928 if (combobox_has_strings( hwnd ))
929 size = (SendMessageW( hwnd, CB_GETLBTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
930 if (!get_buffer_space( buffer, size )) return FALSE;
931 break;
932 }
933 case LB_GETTEXT:
934 {
935 size = sizeof(ULONG_PTR);
936 if (listbox_has_strings( hwnd ))
937 size = (SendMessageW( hwnd, LB_GETTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
938 if (!get_buffer_space( buffer, size )) return FALSE;
939 break;
940 }
941 case LB_GETSELITEMS:
942 if (!get_buffer_space( buffer, *wparam * sizeof(UINT) )) return FALSE;
943 break;
944 case WM_NEXTMENU:
945 minsize = sizeof(MDINEXTMENU);
946 if (!get_buffer_space( buffer, sizeof(MDINEXTMENU) )) return FALSE;
947 break;
948 case WM_SIZING:
949 case WM_MOVING:
950 minsize = sizeof(RECT);
951 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
952 break;
953 case WM_MDICREATE:
954 {
955 MDICREATESTRUCTW *cs = *buffer;
956 WCHAR *str = (WCHAR *)(cs + 1);
957 if (size < sizeof(*cs)) return FALSE;
958 size -= sizeof(*cs);
959 if (HIWORD(cs->szTitle))
960 {
961 if (!check_string( str, size )) return FALSE;
962 cs->szTitle = str;
963 size -= (strlenW(str) + 1) * sizeof(WCHAR);
964 str += strlenW(str) + 1;
965 }
966 if (HIWORD(cs->szClass))
967 {
968 if (!check_string( str, size )) return FALSE;
969 cs->szClass = str;
970 }
971 break;
972 }
973 case WM_MDIGETACTIVE:
974 if (!*lparam) return TRUE;
975 if (!get_buffer_space( buffer, sizeof(BOOL) )) return FALSE;
976 break;
977 case WM_DEVICECHANGE:
978 minsize = sizeof(DEV_BROADCAST_HDR);
979 break;
980 case WM_WINE_KEYBOARD_LL_HOOK:
981 case WM_WINE_MOUSE_LL_HOOK:
982 {
983 struct hook_extra_info *h_extra = (struct hook_extra_info *)*buffer;
984
985 minsize = sizeof(struct hook_extra_info) +
986 (message == WM_WINE_KEYBOARD_LL_HOOK ? sizeof(KBDLLHOOKSTRUCT)
987 : sizeof(MSLLHOOKSTRUCT));
988 if (size < minsize) return FALSE;
989 h_extra->lparam = (LPARAM)(h_extra + 1);
990 break;
991 }
992 case WM_NCPAINT:
993 if (*wparam <= 1) return TRUE;
994 FIXME( "WM_NCPAINT hdc unpacking not supported\n" );
995 return FALSE;
996 case WM_PAINT:
997 if (!*wparam) return TRUE;
998 /* fall through */
999
1000 /* these contain an HFONT */
1001 case WM_SETFONT:
1002 case WM_GETFONT:
1003 /* these contain an HDC */
1004 case WM_ERASEBKGND:
1005 case WM_ICONERASEBKGND:
1006 case WM_CTLCOLORMSGBOX:
1007 case WM_CTLCOLOREDIT:
1008 case WM_CTLCOLORLISTBOX:
1009 case WM_CTLCOLORBTN:
1010 case WM_CTLCOLORDLG:
1011 case WM_CTLCOLORSCROLLBAR:
1012 case WM_CTLCOLORSTATIC:
1013 case WM_PRINT:
1014 case WM_PRINTCLIENT:
1015 /* these contain an HGLOBAL */
1016 case WM_PAINTCLIPBOARD:
1017 case WM_SIZECLIPBOARD:
1018 /* these contain HICON */
1019 case WM_GETICON:
1020 case WM_SETICON:
1021 case WM_QUERYDRAGICON:
1022 case WM_QUERYPARKICON:
1023 /* these contain pointers */
1024 case WM_DROPOBJECT:
1025 case WM_QUERYDROPOBJECT:
1026 case WM_DRAGLOOP:
1027 case WM_DRAGSELECT:
1028 case WM_DRAGMOVE:
1029 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
1030 return FALSE;
1031
1032 default:
1033 return TRUE; /* message doesn't need any unpacking */
1034 }
1035
1036 /* default exit for most messages: check minsize and store buffer in lparam */
1037 if (size < minsize) return FALSE;
1038 *lparam = (LPARAM)*buffer;
1039 return TRUE;
1040 }
1041
1042
1043 /***********************************************************************
1044 * pack_reply
1045 *
1046 * Pack a reply to a message for sending to another process.
1047 */
1048 static void pack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1049 LRESULT res, struct packed_message *data )
1050 {
1051 data->count = 0;
1052 switch(message)
1053 {
1054 case WM_NCCREATE:
1055 case WM_CREATE:
1056 push_data( data, (CREATESTRUCTW *)lparam, sizeof(CREATESTRUCTW) );
1057 break;
1058 case WM_GETTEXT:
1059 case CB_GETLBTEXT:
1060 case LB_GETTEXT:
1061 push_data( data, (WCHAR *)lparam, (res + 1) * sizeof(WCHAR) );
1062 break;
1063 case WM_GETMINMAXINFO:
1064 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
1065 break;
1066 case WM_MEASUREITEM:
1067 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
1068 break;
1069 case WM_WINDOWPOSCHANGING:
1070 case WM_WINDOWPOSCHANGED:
1071 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
1072 break;
1073 case WM_GETDLGCODE:
1074 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
1075 break;
1076 case SBM_GETSCROLLINFO:
1077 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
1078 break;
1079 case EM_GETRECT:
1080 case LB_GETITEMRECT:
1081 case CB_GETDROPPEDCONTROLRECT:
1082 case WM_SIZING:
1083 case WM_MOVING:
1084 push_data( data, (RECT *)lparam, sizeof(RECT) );
1085 break;
1086 case EM_GETLINE:
1087 {
1088 WORD *ptr = (WORD *)lparam;
1089 push_data( data, ptr, ptr[-1] * sizeof(WCHAR) );
1090 break;
1091 }
1092 case LB_GETSELITEMS:
1093 push_data( data, (UINT *)lparam, wparam * sizeof(UINT) );
1094 break;
1095 case WM_MDIGETACTIVE:
1096 if (lparam) push_data( data, (BOOL *)lparam, sizeof(BOOL) );
1097 break;
1098 case WM_NCCALCSIZE:
1099 if (!wparam)
1100 push_data( data, (RECT *)lparam, sizeof(RECT) );
1101 else
1102 {
1103 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1104 push_data( data, nc, sizeof(*nc) );
1105 push_data( data, nc->lppos, sizeof(*nc->lppos) );
1106 }
1107 break;
1108 case EM_GETSEL:
1109 case SBM_GETRANGE:
1110 case CB_GETEDITSEL:
1111 if (wparam) push_data( data, (DWORD *)wparam, sizeof(DWORD) );
1112 if (lparam) push_data( data, (DWORD *)lparam, sizeof(DWORD) );
1113 break;
1114 case WM_NEXTMENU:
1115 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
1116 break;
1117 case WM_MDICREATE:
1118 push_data( data, (MDICREATESTRUCTW *)lparam, sizeof(MDICREATESTRUCTW) );
1119 break;
1120 case WM_ASKCBFORMATNAME:
1121 push_data( data, (WCHAR *)lparam, (strlenW((WCHAR *)lparam) + 1) * sizeof(WCHAR) );
1122 break;
1123 }
1124 }
1125
1126
1127 /***********************************************************************
1128 * unpack_reply
1129 *
1130 * Unpack a message reply received from another process.
1131 */
1132 static void unpack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1133 void *buffer, size_t size )
1134 {
1135 switch(message)
1136 {
1137 case WM_NCCREATE:
1138 case WM_CREATE:
1139 {
1140 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
1141 LPCWSTR name = cs->lpszName, class = cs->lpszClass;
1142 memcpy( cs, buffer, min( sizeof(*cs), size ));
1143 cs->lpszName = name; /* restore the original pointers */
1144 cs->lpszClass = class;
1145 break;
1146 }
1147 case WM_GETTEXT:
1148 case WM_ASKCBFORMATNAME:
1149 memcpy( (WCHAR *)lparam, buffer, min( wparam*sizeof(WCHAR), size ));
1150 break;
1151 case WM_GETMINMAXINFO:
1152 memcpy( (MINMAXINFO *)lparam, buffer, min( sizeof(MINMAXINFO), size ));
1153 break;
1154 case WM_MEASUREITEM:
1155 memcpy( (MEASUREITEMSTRUCT *)lparam, buffer, min( sizeof(MEASUREITEMSTRUCT), size ));
1156 break;
1157 case WM_WINDOWPOSCHANGING:
1158 case WM_WINDOWPOSCHANGED:
1159 memcpy( (WINDOWPOS *)lparam, buffer, min( sizeof(WINDOWPOS), size ));
1160 break;
1161 case WM_GETDLGCODE:
1162 if (lparam) memcpy( (MSG *)lparam, buffer, min( sizeof(MSG), size ));
1163 break;
1164 case SBM_GETSCROLLINFO:
1165 memcpy( (SCROLLINFO *)lparam, buffer, min( sizeof(SCROLLINFO), size ));
1166 break;
1167 case SBM_GETSCROLLBARINFO:
1168 memcpy( (SCROLLBARINFO *)lparam, buffer, min( sizeof(SCROLLBARINFO), size ));
1169 break;
1170 case EM_GETRECT:
1171 case CB_GETDROPPEDCONTROLRECT:
1172 case LB_GETITEMRECT:
1173 case WM_SIZING:
1174 case WM_MOVING:
1175 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1176 break;
1177 case EM_GETLINE:
1178 size = min( size, (size_t)*(WORD *)lparam );
1179 memcpy( (WCHAR *)lparam, buffer, size );
1180 break;
1181 case LB_GETSELITEMS:
1182 memcpy( (UINT *)lparam, buffer, min( wparam*sizeof(UINT), size ));
1183 break;
1184 case LB_GETTEXT:
1185 case CB_GETLBTEXT:
1186 memcpy( (WCHAR *)lparam, buffer, size );
1187 break;
1188 case WM_NEXTMENU:
1189 memcpy( (MDINEXTMENU *)lparam, buffer, min( sizeof(MDINEXTMENU), size ));
1190 break;
1191 case WM_MDIGETACTIVE:
1192 if (lparam) memcpy( (BOOL *)lparam, buffer, min( sizeof(BOOL), size ));
1193 break;
1194 case WM_NCCALCSIZE:
1195 if (!wparam)
1196 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1197 else
1198 {
1199 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1200 WINDOWPOS *wp = nc->lppos;
1201 memcpy( nc, buffer, min( sizeof(*nc), size ));
1202 if (size > sizeof(*nc))
1203 {
1204 size -= sizeof(*nc);
1205 memcpy( wp, (NCCALCSIZE_PARAMS*)buffer + 1, min( sizeof(*wp), size ));
1206 }
1207 nc->lppos = wp; /* restore the original pointer */
1208 }
1209 break;
1210 case EM_GETSEL:
1211 case SBM_GETRANGE:
1212 case CB_GETEDITSEL:
1213 if (wparam)
1214 {
1215 memcpy( (DWORD *)wparam, buffer, min( sizeof(DWORD), size ));
1216 if (size <= sizeof(DWORD)) break;
1217 size -= sizeof(DWORD);
1218 buffer = (DWORD *)buffer + 1;
1219 }
1220 if (lparam) memcpy( (DWORD *)lparam, buffer, min( sizeof(DWORD), size ));
1221 break;
1222 case WM_MDICREATE:
1223 {
1224 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
1225 LPCWSTR title = cs->szTitle, class = cs->szClass;
1226 memcpy( cs, buffer, min( sizeof(*cs), size ));
1227 cs->szTitle = title; /* restore the original pointers */
1228 cs->szClass = class;
1229 break;
1230 }
1231 default:
1232 ERR( "should not happen: unexpected message %x\n", message );
1233 break;
1234 }
1235 }
1236
1237
1238 /***********************************************************************
1239 * reply_message
1240 *
1241 * Send a reply to a sent message.
1242 */
1243 static void reply_message( struct received_message_info *info, LRESULT result, BOOL remove )
1244 {
1245 struct packed_message data;
1246 int i, replied = info->flags & ISMEX_REPLIED;
1247
1248 if (info->flags & ISMEX_NOTIFY) return; /* notify messages don't get replies */
1249 if (!remove && replied) return; /* replied already */
1250
1251 data.count = 0;
1252 info->flags |= ISMEX_REPLIED;
1253
1254 if (info->type == MSG_OTHER_PROCESS && !replied)
1255 {
1256 pack_reply( info->msg.hwnd, info->msg.message, info->msg.wParam,
1257 info->msg.lParam, result, &data );
1258 }
1259
1260 SERVER_START_REQ( reply_message )
1261 {
1262 req->result = result;
1263 req->remove = remove;
1264 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
1265 wine_server_call( req );
1266 }
1267 SERVER_END_REQ;
1268 }
1269
1270
1271 /***********************************************************************
1272 * handle_internal_message
1273 *
1274 * Handle an internal Wine message instead of calling the window proc.
1275 */
1276 static LRESULT handle_internal_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
1277 {
1278 switch(msg)
1279 {
1280 case WM_WINE_DESTROYWINDOW:
1281 return WIN_DestroyWindow( hwnd );
1282 case WM_WINE_SETWINDOWPOS:
1283 if (is_desktop_window( hwnd )) return 0;
1284 return USER_SetWindowPos( (WINDOWPOS *)lparam );
1285 case WM_WINE_SHOWWINDOW:
1286 if (is_desktop_window( hwnd )) return 0;
1287 return ShowWindow( hwnd, wparam );
1288 case WM_WINE_SETPARENT:
1289 if (is_desktop_window( hwnd )) return 0;
1290 return (LRESULT)SetParent( hwnd, (HWND)wparam );
1291 case WM_WINE_SETWINDOWLONG:
1292 return WIN_SetWindowLong( hwnd, (short)LOWORD(wparam), HIWORD(wparam), lparam, TRUE );
1293 case WM_WINE_ENABLEWINDOW:
1294 if (is_desktop_window( hwnd )) return 0;
1295 return EnableWindow( hwnd, wparam );
1296 case WM_WINE_SETACTIVEWINDOW:
1297 if (is_desktop_window( hwnd )) return 0;
1298 return (LRESULT)SetActiveWindow( (HWND)wparam );
1299 case WM_WINE_KEYBOARD_LL_HOOK:
1300 case WM_WINE_MOUSE_LL_HOOK:
1301 {
1302 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
1303
1304 return call_current_hook( h_extra->handle, HC_ACTION, wparam, h_extra->lparam );
1305 }
1306 default:
1307 if (msg >= WM_WINE_FIRST_DRIVER_MSG && msg <= WM_WINE_LAST_DRIVER_MSG)
1308 return USER_Driver->pWindowMessage( hwnd, msg, wparam, lparam );
1309 FIXME( "unknown internal message %x\n", msg );
1310 return 0;
1311 }
1312 }
1313
1314 /* since the WM_DDE_ACK response to a WM_DDE_EXECUTE message should contain the handle
1315 * to the memory handle, we keep track (in the server side) of all pairs of handle
1316 * used (the client passes its value and the content of the memory handle), and
1317 * the server stored both values (the client, and the local one, created after the
1318 * content). When a ACK message is generated, the list of pair is searched for a
1319 * matching pair, so that the client memory handle can be returned.
1320 */
1321 struct DDE_pair {
1322 HGLOBAL client_hMem;
1323 HGLOBAL server_hMem;
1324 };
1325
1326 static struct DDE_pair* dde_pairs;
1327 static int dde_num_alloc;
1328 static int dde_num_used;
1329
1330 static CRITICAL_SECTION dde_crst;
1331 static CRITICAL_SECTION_DEBUG critsect_debug =
1332 {
1333 0, 0, &dde_crst,
1334 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
1335 0, 0, { (DWORD_PTR)(__FILE__ ": dde_crst") }
1336 };
1337 static CRITICAL_SECTION dde_crst = { &critsect_debug, -1, 0, 0, 0, 0 };
1338
1339 static BOOL dde_add_pair(HGLOBAL chm, HGLOBAL shm)
1340 {
1341 int i;
1342 #define GROWBY 4
1343
1344 EnterCriticalSection(&dde_crst);
1345
1346 /* now remember the pair of hMem on both sides */
1347 if (dde_num_used == dde_num_alloc)
1348 {
1349 struct DDE_pair* tmp;
1350 if (dde_pairs)
1351 tmp = HeapReAlloc( GetProcessHeap(), 0, dde_pairs,
1352 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1353 else
1354 tmp = HeapAlloc( GetProcessHeap(), 0,
1355 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1356
1357 if (!tmp)
1358 {
1359 LeaveCriticalSection(&dde_crst);
1360 return FALSE;
1361 }
1362 dde_pairs = tmp;
1363 /* zero out newly allocated part */
1364 memset(&dde_pairs[dde_num_alloc], 0, GROWBY * sizeof(struct DDE_pair));
1365 dde_num_alloc += GROWBY;
1366 }
1367 #undef GROWBY
1368 for (i = 0; i < dde_num_alloc; i++)
1369 {
1370 if (dde_pairs[i].server_hMem == 0)
1371 {
1372 dde_pairs[i].client_hMem = chm;
1373 dde_pairs[i].server_hMem = shm;
1374 dde_num_used++;
1375 break;
1376 }
1377 }
1378 LeaveCriticalSection(&dde_crst);
1379 return TRUE;
1380 }
1381
1382 static HGLOBAL dde_get_pair(HGLOBAL shm)
1383 {
1384 int i;
1385 HGLOBAL ret = 0;
1386
1387 EnterCriticalSection(&dde_crst);
1388 for (i = 0; i < dde_num_alloc; i++)
1389 {
1390 if (dde_pairs[i].server_hMem == shm)
1391 {
1392 /* free this pair */
1393 dde_pairs[i].server_hMem = 0;
1394 dde_num_used--;
1395 ret = dde_pairs[i].client_hMem;
1396 break;
1397 }
1398 }
1399 LeaveCriticalSection(&dde_crst);
1400 return ret;
1401 }
1402
1403 /***********************************************************************
1404 * post_dde_message
1405 *
1406 * Post a DDE message
1407 */
1408 static BOOL post_dde_message( struct packed_message *data, const struct send_message_info *info )
1409 {
1410 void* ptr = NULL;
1411 int size = 0;
1412 UINT_PTR uiLo, uiHi;
1413 LPARAM lp = 0;
1414 HGLOBAL hunlock = 0;
1415 int i;
1416 DWORD res;
1417
1418 if (!UnpackDDElParam( info->msg, info->lparam, &uiLo, &uiHi ))
1419 return FALSE;
1420
1421 lp = info->lparam;
1422 switch (info->msg)
1423 {
1424 /* DDE messages which don't require packing are:
1425 * WM_DDE_INITIATE
1426 * WM_DDE_TERMINATE
1427 * WM_DDE_REQUEST
1428 * WM_DDE_UNADVISE
1429 */
1430 case WM_DDE_ACK:
1431 if (HIWORD(uiHi))
1432 {
1433 /* uiHi should contain a hMem from WM_DDE_EXECUTE */
1434 HGLOBAL h = dde_get_pair( (HANDLE)uiHi );
1435 if (h)
1436 {
1437 /* send back the value of h on the other side */
1438 push_data( data, &h, sizeof(HGLOBAL) );
1439 lp = uiLo;
1440 TRACE( "send dde-ack %lx %08lx => %p\n", uiLo, uiHi, h );
1441 }
1442 }
1443 else
1444 {
1445 /* uiHi should contain either an atom or 0 */
1446 TRACE( "send dde-ack %lx atom=%lx\n", uiLo, uiHi );
1447 lp = MAKELONG( uiLo, uiHi );
1448 }
1449 break;
1450 case WM_DDE_ADVISE:
1451 case WM_DDE_DATA:
1452 case WM_DDE_POKE:
1453 size = 0;
1454 if (uiLo)
1455 {
1456 size = GlobalSize( (HGLOBAL)uiLo ) ;
1457 if ((info->msg == WM_DDE_ADVISE && size < sizeof(DDEADVISE)) ||
1458 (info->msg == WM_DDE_DATA && size < FIELD_OFFSET(DDEDATA, Value)) ||
1459 (info->msg == WM_DDE_POKE && size < FIELD_OFFSET(DDEPOKE, Value))
1460 )
1461 return FALSE;
1462 }
1463 else if (info->msg != WM_DDE_DATA) return FALSE;
1464
1465 lp = uiHi;
1466 if (uiLo)
1467 {
1468 if ((ptr = GlobalLock( (HGLOBAL)uiLo) ))
1469 {
1470 DDEDATA *dde_data = (DDEDATA *)ptr;
1471 TRACE("unused %d, fResponse %d, fRelease %d, fDeferUpd %d, fAckReq %d, cfFormat %d\n",
1472 dde_data->unused, dde_data->fResponse, dde_data->fRelease,
1473 dde_data->reserved, dde_data->fAckReq, dde_data->cfFormat);
1474 push_data( data, ptr, size );
1475 hunlock = (HGLOBAL)uiLo;
1476 }
1477 }
1478 TRACE( "send ddepack %u %lx\n", size, uiHi );
1479 break;
1480 case WM_DDE_EXECUTE:
1481 if (info->lparam)
1482 {
1483 if ((ptr = GlobalLock( (HGLOBAL)info->lparam) ))
1484 {
1485 push_data(data, ptr, GlobalSize( (HGLOBAL)info->lparam ));
1486 /* so that the other side can send it back on ACK */
1487 lp = info->lparam;
1488 hunlock = (HGLOBAL)info->lparam;
1489 }
1490 }
1491 break;
1492 }
1493 SERVER_START_REQ( send_message )
1494 {
1495 req->id = info->dest_tid;
1496 req->type = info->type;
1497 req->flags = 0;
1498 req->win = info->hwnd;
1499 req->msg = info->msg;
1500 req->wparam = info->wparam;
1501 req->lparam = lp;
1502 req->timeout = TIMEOUT_INFINITE;
1503 for (i = 0; i < data->count; i++)
1504 wine_server_add_data( req, data->data[i], data->size[i] );
1505 if ((res = wine_server_call( req )))
1506 {
1507 if (res == STATUS_INVALID_PARAMETER)
1508 /* FIXME: find a STATUS_ value for this one */
1509 SetLastError( ERROR_INVALID_THREAD_ID );
1510 else
1511 SetLastError( RtlNtStatusToDosError(res) );
1512 }
1513 else
1514 FreeDDElParam(info->msg, info->lparam);
1515 }
1516 SERVER_END_REQ;
1517 if (hunlock) GlobalUnlock(hunlock);
1518
1519 return !res;
1520 }
1521
1522 /***********************************************************************
1523 * unpack_dde_message
1524 *
1525 * Unpack a posted DDE message received from another process.
1526 */
1527 static BOOL unpack_dde_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
1528 void **buffer, size_t size )
1529 {
1530 UINT_PTR uiLo, uiHi;
1531 HGLOBAL hMem = 0;
1532 void* ptr;
1533
1534 switch (message)
1535 {
1536 case WM_DDE_ACK:
1537 if (size)
1538 {
1539 /* hMem is being passed */
1540 if (size != sizeof(HGLOBAL)) return FALSE;
1541 if (!buffer || !*buffer) return FALSE;
1542 uiLo = *lparam;
1543 memcpy( &hMem, *buffer, size );
1544 uiHi = (UINT_PTR)hMem;
1545 TRACE("recv dde-ack %lx mem=%lx[%lx]\n", uiLo, uiHi, GlobalSize( hMem ));
1546 }
1547 else
1548 {
1549 uiLo = LOWORD( *lparam );
1550 uiHi = HIWORD( *lparam );
1551 TRACE("recv dde-ack %lx atom=%lx\n", uiLo, uiHi);
1552 }
1553 *lparam = PackDDElParam( WM_DDE_ACK, uiLo, uiHi );
1554 break;
1555 case WM_DDE_ADVISE:
1556 case WM_DDE_DATA:
1557 case WM_DDE_POKE:
1558 if ((!buffer || !*buffer) && message != WM_DDE_DATA) return FALSE;
1559 uiHi = *lparam;
1560 if (size)
1561 {
1562 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size )))
1563 return FALSE;
1564 if ((ptr = GlobalLock( hMem )))
1565 {
1566 memcpy( ptr, *buffer, size );
1567 GlobalUnlock( hMem );
1568 }
1569 else
1570 {
1571 GlobalFree( hMem );
1572 return FALSE;
1573 }
1574 }
1575 uiLo = (UINT_PTR)hMem;
1576
1577 *lparam = PackDDElParam( message, uiLo, uiHi );
1578 break;
1579 case WM_DDE_EXECUTE:
1580 if (size)
1581 {
1582 if (!buffer || !*buffer) return FALSE;
1583 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size ))) return FALSE;
1584 if ((ptr = GlobalLock( hMem )))
1585 {
1586 memcpy( ptr, *buffer, size );
1587 GlobalUnlock( hMem );
1588 TRACE( "exec: pairing c=%08lx s=%p\n", *lparam, hMem );
1589 if (!dde_add_pair( (HGLOBAL)*lparam, hMem ))
1590 {
1591 GlobalFree( hMem );
1592 return FALSE;
1593 }
1594 }
1595 else
1596 {
1597 GlobalFree( hMem );
1598 return FALSE;
1599 }
1600 } else return FALSE;
1601 *lparam = (LPARAM)hMem;
1602 break;
1603 }
1604 return TRUE;
1605 }
1606
1607 /***********************************************************************
1608 * call_window_proc
1609 *
1610 * Call a window procedure and the corresponding hooks.
1611 */
1612 static LRESULT call_window_proc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
1613 BOOL unicode, BOOL same_thread, enum wm_char_mapping mapping )
1614 {
1615 LRESULT result = 0;
1616 CWPSTRUCT cwp;
1617 CWPRETSTRUCT cwpret;
1618
1619 if (msg & 0x80000000)
1620 {
1621 result = handle_internal_message( hwnd, msg, wparam, lparam );
1622 goto done;
1623 }
1624
1625 /* first the WH_CALLWNDPROC hook */
1626 hwnd = WIN_GetFullHandle( hwnd );
1627 cwp.lParam = lparam;
1628 cwp.wParam = wparam;
1629 cwp.message = msg;
1630 cwp.hwnd = hwnd;
1631 HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, same_thread, (LPARAM)&cwp, unicode );
1632
1633 /* now call the window procedure */
1634 if (!WINPROC_call_window( hwnd, msg, wparam, lparam, &result, unicode, mapping )) goto done;
1635
1636 /* and finally the WH_CALLWNDPROCRET hook */
1637 cwpret.lResult = result;
1638 cwpret.lParam = lparam;
1639 cwpret.wParam = wparam;
1640 cwpret.message = msg;
1641 cwpret.hwnd = hwnd;
1642 HOOK_CallHooks( WH_CALLWNDPROCRET, HC_ACTION, same_thread, (LPARAM)&cwpret, unicode );
1643 done:
1644 return result;
1645 }
1646
1647
1648 /***********************************************************************
1649 * send_parent_notify
1650 *
1651 * Send a WM_PARENTNOTIFY to all ancestors of the given window, unless
1652 * the window has the WS_EX_NOPARENTNOTIFY style.
1653 */
1654 static void send_parent_notify( HWND hwnd, WORD event, WORD idChild, POINT pt )
1655 {
1656 /* pt has to be in the client coordinates of the parent window */
1657 MapWindowPoints( 0, hwnd, &pt, 1 );
1658 for (;;)
1659 {
1660 HWND parent;
1661
1662 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) break;
1663 if (GetWindowLongW( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) break;
1664 if (!(parent = GetParent(hwnd))) break;
1665 if (parent == GetDesktopWindow()) break;
1666 MapWindowPoints( hwnd, parent, &pt, 1 );
1667 hwnd = parent;
1668 SendMessageW( hwnd, WM_PARENTNOTIFY,
1669 MAKEWPARAM( event, idChild ), MAKELPARAM( pt.x, pt.y ) );
1670 }
1671 }
1672
1673
1674 /***********************************************************************
1675 * accept_hardware_message
1676 *
1677 * Tell the server we have passed the message to the app
1678 * (even though we may end up dropping it later on)
1679 */
1680 static void accept_hardware_message( UINT hw_id, BOOL remove, HWND new_hwnd )
1681 {
1682 SERVER_START_REQ( accept_hardware_message )
1683 {
1684 req->hw_id = hw_id;
1685 req->remove = remove;
1686 req->new_win = new_hwnd;
1687 if (wine_server_call( req ))
1688 FIXME("Failed to reply to MSG_HARDWARE message. Message may not be removed from queue.\n");
1689 }
1690 SERVER_END_REQ;
1691 }
1692
1693
1694 /***********************************************************************
1695 * process_keyboard_message
1696 *
1697 * returns TRUE if the contents of 'msg' should be passed to the application
1698 */
1699 static BOOL process_keyboard_message( MSG *msg, UINT hw_id, HWND hwnd_filter,
1700 UINT first, UINT last, BOOL remove )
1701 {
1702 EVENTMSG event;
1703
1704 if (msg->message == WM_KEYDOWN || msg->message == WM_SYSKEYDOWN ||
1705 msg->message == WM_KEYUP || msg->message == WM_SYSKEYUP)
1706 switch (msg->wParam)
1707 {
1708 case VK_LSHIFT: case VK_RSHIFT:
1709 msg->wParam = VK_SHIFT;
1710 break;
1711 case VK_LCONTROL: case VK_RCONTROL:
1712 msg->wParam = VK_CONTROL;
1713 break;
1714 case VK_LMENU: case VK_RMENU:
1715 msg->wParam = VK_MENU;
1716 break;
1717 }
1718
1719 /* FIXME: is this really the right place for this hook? */
1720 event.message = msg->message;
1721 event.hwnd = msg->hwnd;
1722 event.time = msg->time;
1723 event.paramL = (msg->wParam & 0xFF) | (HIWORD(msg->lParam) << 8);
1724 event.paramH = msg->lParam & 0x7FFF;
1725 if (HIWORD(msg->lParam) & 0x0100) event.paramH |= 0x8000; /* special_key - bit */
1726 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1727
1728 /* check message filters */
1729 if (msg->message < first || msg->message > last) return FALSE;
1730 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1731
1732 if (remove)
1733 {
1734 if((msg->message == WM_KEYDOWN) &&
1735 (msg->hwnd != GetDesktopWindow()))
1736 {
1737 /* Handle F1 key by sending out WM_HELP message */
1738 if (msg->wParam == VK_F1)
1739 {
1740 PostMessageW( msg->hwnd, WM_KEYF1, 0, 0 );
1741 }
1742 else if(msg->wParam >= VK_BROWSER_BACK &&
1743 msg->wParam <= VK_LAUNCH_APP2)
1744 {
1745 /* FIXME: Process keystate */
1746 SendMessageW(msg->hwnd, WM_APPCOMMAND, (WPARAM)msg->hwnd, MAKELPARAM(0, (FAPPCOMMAND_KEY | (msg->wParam - VK_BROWSER_BACK + 1))));
1747 }
1748 }
1749 else if (msg->message == WM_KEYUP)
1750 {
1751 /* Handle VK_APPS key by posting a WM_CONTEXTMENU message */
1752 if (msg->wParam == VK_APPS && !MENU_IsMenuActive())
1753 PostMessageW(msg->hwnd, WM_CONTEXTMENU, (WPARAM)msg->hwnd, (LPARAM)-1);
1754 }
1755 }
1756
1757 if (HOOK_CallHooks( WH_KEYBOARD, remove ? HC_ACTION : HC_NOREMOVE,
1758 LOWORD(msg->wParam), msg->lParam, TRUE ))
1759 {
1760 /* skip this message */
1761 HOOK_CallHooks( WH_CBT, HCBT_KEYSKIPPED, LOWORD(msg->wParam), msg->lParam, TRUE );
1762 accept_hardware_message( hw_id, TRUE, 0 );
1763 return FALSE;
1764 }
1765 accept_hardware_message( hw_id, remove, 0 );
1766
1767 if ( msg->message == WM_KEYDOWN || msg->message == WM_KEYUP )
1768 if ( ImmProcessKey(msg->hwnd, GetKeyboardLayout(0), msg->wParam, msg->lParam, 0) )
1769 msg->wParam = VK_PROCESSKEY;
1770
1771 return TRUE;
1772 }
1773
1774
1775 /***********************************************************************
1776 * process_mouse_message
1777 *
1778 * returns TRUE if the contents of 'msg' should be passed to the application
1779 */
1780 static BOOL process_mouse_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1781 UINT first, UINT last, BOOL remove )
1782 {
1783 static MSG clk_msg;
1784
1785 POINT pt;
1786 UINT message;
1787 INT hittest;
1788 EVENTMSG event;
1789 GUITHREADINFO info;
1790 MOUSEHOOKSTRUCT hook;
1791 BOOL eatMsg;
1792
1793 /* find the window to dispatch this mouse message to */
1794
1795 GetGUIThreadInfo( GetCurrentThreadId(), &info );
1796 if (info.hwndCapture)
1797 {
1798 hittest = HTCLIENT;
1799 msg->hwnd = info.hwndCapture;
1800 }
1801 else
1802 {
1803 msg->hwnd = WINPOS_WindowFromPoint( msg->hwnd, msg->pt, &hittest );
1804 }
1805
1806 if (!msg->hwnd || !WIN_IsCurrentThread( msg->hwnd ))
1807 {
1808 accept_hardware_message( hw_id, TRUE, msg->hwnd );
1809 return FALSE;
1810 }
1811
1812 /* FIXME: is this really the right place for this hook? */
1813 event.message = msg->message;
1814 event.time = msg->time;
1815 event.hwnd = msg->hwnd;
1816 event.paramL = msg->pt.x;
1817 event.paramH = msg->pt.y;
1818 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1819
1820 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1821
1822 pt = msg->pt;
1823 message = msg->message;
1824 /* Note: windows has no concept of a non-client wheel message */
1825 if (message != WM_MOUSEWHEEL)
1826 {
1827 if (hittest != HTCLIENT)
1828 {
1829 message += WM_NCMOUSEMOVE - WM_MOUSEMOVE;
1830 msg->wParam = hittest;
1831 }
1832 else
1833 {
1834 /* coordinates don't get translated while tracking a menu */
1835 /* FIXME: should differentiate popups and top-level menus */
1836 if (!(info.flags & GUI_INMENUMODE))
1837 ScreenToClient( msg->hwnd, &pt );
1838 }
1839 }
1840 msg->lParam = MAKELONG( pt.x, pt.y );
1841
1842 /* translate double clicks */
1843
1844 if ((msg->message == WM_LBUTTONDOWN) ||
1845 (msg->message == WM_RBUTTONDOWN) ||
1846 (msg->message == WM_MBUTTONDOWN) ||
1847 (msg->message == WM_XBUTTONDOWN))
1848 {
1849 BOOL update = remove;
1850
1851 /* translate double clicks -
1852 * note that ...MOUSEMOVEs can slip in between
1853 * ...BUTTONDOWN and ...BUTTONDBLCLK messages */
1854
1855 if ((info.flags & (GUI_INMENUMODE|GUI_INMOVESIZE)) ||
1856 hittest != HTCLIENT ||
1857 (GetClassLongA( msg->hwnd, GCL_STYLE ) & CS_DBLCLKS))
1858 {
1859 if ((msg->message == clk_msg.message) &&
1860 (msg->hwnd == clk_msg.hwnd) &&
1861 (msg->wParam == clk_msg.wParam) &&
1862 (msg->time - clk_msg.time < GetDoubleClickTime()) &&
1863 (abs(msg->pt.x - clk_msg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
1864 (abs(msg->pt.y - clk_msg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
1865 {
1866 message += (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
1867 if (update)
1868 {
1869 clk_msg.message = 0; /* clear the double click conditions */
1870 update = FALSE;
1871 }
1872 }
1873 }
1874 if (message < first || message > last) return FALSE;
1875 /* update static double click conditions */
1876 if (update) clk_msg = *msg;
1877 }
1878 else
1879 {
1880 if (message < first || message > last) return FALSE;
1881 }
1882
1883 /* message is accepted now (but may still get dropped) */
1884
1885 hook.pt = msg->pt;
1886 hook.hwnd = msg->hwnd;
1887 hook.wHitTestCode = hittest;
1888 hook.dwExtraInfo = extra_info;
1889 if (HOOK_CallHooks( WH_MOUSE, remove ? HC_ACTION : HC_NOREMOVE,
1890 message, (LPARAM)&hook, TRUE ))
1891 {
1892 hook.pt = msg->pt;
1893 hook.hwnd = msg->hwnd;
1894 hook.wHitTestCode = hittest;
1895 hook.dwExtraInfo = extra_info;
1896 HOOK_CallHooks( WH_CBT, HCBT_CLICKSKIPPED, message, (LPARAM)&hook, TRUE );
1897 accept_hardware_message( hw_id, TRUE, 0 );
1898 return FALSE;
1899 }
1900
1901 if ((hittest == HTERROR) || (hittest == HTNOWHERE))
1902 {
1903 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd,
1904 MAKELONG( hittest, msg->message ));
1905 accept_hardware_message( hw_id, TRUE, 0 );
1906 return FALSE;
1907 }
1908
1909 accept_hardware_message( hw_id, remove, 0 );
1910
1911 if (!remove || info.hwndCapture)
1912 {
1913 msg->message = message;
1914 return TRUE;
1915 }
1916
1917 eatMsg = FALSE;
1918
1919 if ((msg->message == WM_LBUTTONDOWN) ||
1920 (msg->message == WM_RBUTTONDOWN) ||
1921 (msg->message == WM_MBUTTONDOWN) ||
1922 (msg->message == WM_XBUTTONDOWN))
1923 {
1924 /* Send the WM_PARENTNOTIFY,
1925 * note that even for double/nonclient clicks
1926 * notification message is still WM_L/M/RBUTTONDOWN.
1927 */
1928 send_parent_notify( msg->hwnd, msg->message, 0, msg->pt );
1929
1930 /* Activate the window if needed */
1931
1932 if (msg->hwnd != info.hwndActive)
1933 {
1934 HWND hwndTop = msg->hwnd;
1935 while (hwndTop)
1936 {
1937 if ((GetWindowLongW( hwndTop, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) != WS_CHILD) break;
1938 hwndTop = GetParent( hwndTop );
1939 }
1940
1941 if (hwndTop && hwndTop != GetDesktopWindow())
1942 {
1943 LONG ret = SendMessageW( msg->hwnd, WM_MOUSEACTIVATE, (WPARAM)hwndTop,
1944 MAKELONG( hittest, msg->message ) );
1945 switch(ret)
1946 {
1947 case MA_NOACTIVATEANDEAT:
1948 eatMsg = TRUE;
1949 /* fall through */
1950 case MA_NOACTIVATE:
1951 break;
1952 case MA_ACTIVATEANDEAT:
1953 eatMsg = TRUE;
1954 /* fall through */
1955 case MA_ACTIVATE:
1956 case 0:
1957 if (!FOCUS_MouseActivate( hwndTop )) eatMsg = TRUE;
1958 break;
1959 default:
1960 WARN( "unknown WM_MOUSEACTIVATE code %d\n", ret );
1961 break;
1962 }
1963 }
1964 }
1965 }
1966
1967 /* send the WM_SETCURSOR message */
1968
1969 /* Windows sends the normal mouse message as the message parameter
1970 in the WM_SETCURSOR message even if it's non-client mouse message */
1971 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd, MAKELONG( hittest, msg->message ));
1972
1973 msg->message = message;
1974 return !eatMsg;
1975 }
1976
1977
1978 /***********************************************************************
1979 * process_hardware_message
1980 *
1981 * Process a hardware message; return TRUE if message should be passed on to the app
1982 */
1983 static BOOL process_hardware_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1984 UINT first, UINT last, BOOL remove )
1985 {
1986 if (is_keyboard_message( msg->message ))
1987 return process_keyboard_message( msg, hw_id, hwnd_filter, first, last, remove );
1988
1989 if (is_mouse_message( msg->message ))
1990 return process_mouse_message( msg, hw_id, extra_info, hwnd_filter, first, last, remove );
1991
1992 ERR( "unknown message type %x\n", msg->message );
1993 return FALSE;
1994 }
1995
1996
1997 /***********************************************************************
1998 * call_sendmsg_callback
1999 *
2000 * Call the callback function of SendMessageCallback.
2001 */
2002 static inline void call_sendmsg_callback( SENDASYNCPROC callback, HWND hwnd, UINT msg,
2003 ULONG_PTR data, LRESULT result )
2004 {
2005 if (!callback) return;
2006
2007 if (TRACE_ON(relay))
2008 DPRINTF( "%04x:Call message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
2009 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
2010 data, result );
2011 callback( hwnd, msg, data, result );
2012 if (TRACE_ON(relay))
2013 DPRINTF( "%04x:Ret message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
2014 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
2015 data, result );
2016 }
2017
2018
2019 /***********************************************************************
2020 * peek_message
2021 *
2022 * Peek for a message matching the given parameters. Return FALSE if none available.
2023 * All pending sent messages are processed before returning.
2024 */
2025 static BOOL peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags, UINT changed_mask )
2026 {
2027 LRESULT result;
2028 ULONG_PTR extra_info = 0;
2029 struct user_thread_info *thread_info = get_user_thread_info();
2030 struct received_message_info info, *old_info;
2031 unsigned int hw_id = 0; /* id of previous hardware message */
2032 char local_buffer[256];
2033 void *buffer = local_buffer;
2034 size_t buffer_size = sizeof(local_buffer);
2035
2036 if (!first && !last) last = ~0;
2037
2038 for (;;)
2039 {
2040 NTSTATUS res;
2041 size_t size = 0;
2042
2043 SERVER_START_REQ( get_message )
2044 {
2045 req->flags = flags;
2046 req->get_win = hwnd;
2047 req->get_first = first;
2048 req->get_last = last;
2049 req->hw_id = hw_id;
2050 req->wake_mask = changed_mask & (QS_SENDMESSAGE | QS_SMRESULT);
2051 req->changed_mask = changed_mask;
2052 wine_server_set_reply( req, buffer, buffer_size );
2053 if (!(res = wine_server_call( req )))
2054 {
2055 size = wine_server_reply_size( reply );
2056 info.type = reply->type;
2057 info.msg.hwnd = reply->win;
2058 info.msg.message = reply->msg;
2059 info.msg.wParam = reply->wparam;
2060 info.msg.lParam = reply->lparam;
2061 info.msg.time = reply->time;
2062 info.msg.pt.x = reply->x;
2063 info.msg.pt.y = reply->y;
2064 hw_id = reply->hw_id;
2065 extra_info = reply->info;
2066 thread_info->active_hooks = reply->active_hooks;
2067 }
2068 else buffer_size = reply->total;
2069 }
2070 SERVER_END_REQ;
2071
2072 if (res)
2073 {
2074 if (buffer != local_buffer) HeapFree( GetProcessHeap(), 0, buffer );
2075 if (res != STATUS_BUFFER_OVERFLOW) return FALSE;
2076 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, buffer_size ))) return FALSE;
2077 continue;
2078 }
2079
2080 TRACE( "got type %d msg %x (%s) hwnd %p wp %lx lp %lx\n",
2081 info.type, info.msg.message,
2082 (info.type == MSG_WINEVENT) ? "MSG_WINEVENT" : SPY_GetMsgName(info.msg.message, info.msg.hwnd),
2083 info.msg.hwnd, info.msg.wParam, info.msg.lParam );
2084
2085 switch(info.type)
2086 {
2087 case MSG_ASCII:
2088 case MSG_UNICODE:
2089 info.flags = ISMEX_SEND;
2090 break;
2091 case MSG_NOTIFY:
2092 info.flags = ISMEX_NOTIFY;
2093 break;
2094 case MSG_CALLBACK:
2095 info.flags = ISMEX_CALLBACK;
2096 break;
2097 case MSG_CALLBACK_RESULT:
2098 if (size >= sizeof(struct callback_msg_data))
2099 {
2100 const struct callback_msg_data *data = buffer;
2101 call_sendmsg_callback( data->callback, info.msg.hwnd,
2102 info.msg.message, data->data, data->result );
2103 }
2104 continue;
2105 case MSG_WINEVENT:
2106 if (size >= sizeof(struct winevent_msg_data))
2107 {
2108 WINEVENTPROC hook_proc;
2109 const struct winevent_msg_data *data = buffer;
2110
2111 hook_proc = data->hook_proc;
2112 size -= sizeof(*data);
2113 if (size)
2114 {
2115 WCHAR module[MAX_PATH];
2116
2117 size = min( size, (MAX_PATH - 1) * sizeof(WCHAR) );
2118 memcpy( module, buffer, size );
2119 module[size / sizeof(WCHAR)] = 0;
2120 if (!(hook_proc = get_hook_proc( hook_proc, module )))
2121 {
2122 ERR( "invalid winevent hook module name %s\n", debugstr_w(module) );
2123 continue;
2124 }
2125 }
2126
2127 if (TRACE_ON(relay))
2128 DPRINTF( "%04x:Call winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%lx,child_id=%lx,tid=%04x,time=%x)\n",
2129 GetCurrentThreadId(), hook_proc,
2130 data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2131 info.msg.lParam, data->tid, info.msg.time);
2132
2133 hook_proc( data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2134 info.msg.lParam, data->tid, info.msg.time );
2135
2136 if (TRACE_ON(relay))
2137 DPRINTF( "%04x:Ret winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%lx,child_id=%lx,tid=%04x,time=%x)\n",
2138 GetCurrentThreadId(), hook_proc,
2139 data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2140 info.msg.lParam, data->tid, info.msg.time);
2141 }
2142 continue;
2143 case MSG_OTHER_PROCESS:
2144 info.flags = ISMEX_SEND;
2145 if (!unpack_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2146 &info.msg.lParam, &buffer, size ))
2147 {
2148 /* ignore it */
2149 reply_message( &info, 0, TRUE );
2150 continue;
2151 }
2152 break;
2153 case MSG_HARDWARE:
2154 if (!process_hardware_message( &info.msg, hw_id, extra_info,
2155 hwnd, first, last, flags & PM_REMOVE ))
2156 {
2157 TRACE("dropping msg %x\n", info.msg.message );
2158 continue; /* ignore it */
2159 }
2160 thread_info->GetMessagePosVal = MAKELONG( info.msg.pt.x, info.msg.pt.y );
2161 /* fall through */
2162 case MSG_POSTED:
2163 if (info.msg.message & 0x80000000) /* internal message */
2164 {
2165 if (flags & PM_REMOVE)
2166 handle_internal_message( info.msg.hwnd, info.msg.message,
2167 info.msg.wParam, info.msg.lParam );
2168 else
2169 peek_message( msg, info.msg.hwnd, info.msg.message,
2170 info.msg.message, flags | PM_REMOVE, changed_mask );
2171 continue;
2172 }
2173 if (info.msg.message >= WM_DDE_FIRST && info.msg.message <= WM_DDE_LAST)
2174 {
2175 if (!unpack_dde_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2176 &info.msg.lParam, &buffer, size ))
2177 continue; /* ignore it */
2178 }
2179 *msg = info.msg;
2180 msg->pt.x = (short)LOWORD( thread_info->GetMessagePosVal );
2181 msg->pt.y = (short)HIWORD( thread_info->GetMessagePosVal );
2182 thread_info->GetMessageTimeVal = info.msg.time;
2183 thread_info->GetMessageExtraInfoVal = extra_info;
2184 if (buffer != local_buffer) HeapFree( GetProcessHeap(), 0, buffer );
2185 HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, flags & PM_REMOVE, (LPARAM)msg, TRUE );
2186 return TRUE;
2187 }
2188
2189 /* if we get here, we have a sent message; call the window procedure */
2190 old_info = thread_info->receive_info;
2191 thread_info->receive_info = &info;
2192 result = call_window_proc( info.msg.hwnd, info.msg.message, info.msg.wParam,
2193 info.msg.lParam, (info.type != MSG_ASCII), FALSE,
2194 WMCHAR_MAP_RECVMESSAGE );
2195 reply_message( &info, result, TRUE );
2196 thread_info->receive_info = old_info;
2197
2198 /* if some PM_QS* flags were specified, only handle sent messages from now on */
2199 if (HIWORD(flags) && !changed_mask) flags = PM_QS_SENDMESSAGE | LOWORD(flags);
2200 }
2201 }
2202
2203
2204 /***********************************************************************
2205 * process_sent_messages
2206 *
2207 * Process all pending sent messages.
2208 */
2209 static inline void process_sent_messages(void)
2210 {
2211 MSG msg;
2212 peek_message( &msg, 0, 0, 0, PM_REMOVE | PM_QS_SENDMESSAGE, 0 );
2213 }
2214
2215
2216 /***********************************************************************
2217 * get_server_queue_handle
2218 *
2219 * Get a handle to the server message queue for the current thread.
2220 */
2221 static HANDLE get_server_queue_handle(void)
2222 {
2223 struct user_thread_info *thread_info = get_user_thread_info();
2224 HANDLE ret;
2225
2226 if (!(ret = thread_info->server_queue))
2227 {
2228 SERVER_START_REQ( get_msg_queue )
2229 {
2230 wine_server_call( req );
2231 ret = reply->handle;
2232 }
2233 SERVER_END_REQ;
2234 thread_info->server_queue = ret;
2235 if (!ret) ERR( "Cannot get server thread queue\n" );
2236 }
2237 return ret;
2238 }
2239
2240
2241 /***********************************************************************
2242 * wait_message_reply
2243 *
2244 * Wait until a sent message gets replied to.
2245 */
2246 static void wait_message_reply( UINT flags )
2247 {
2248 HANDLE server_queue = get_server_queue_handle();
2249
2250 for (;;)
2251 {
2252 unsigned int wake_bits = 0;
2253 DWORD dwlc, res;
2254
2255 SERVER_START_REQ( set_queue_mask )
2256 {
2257 req->wake_mask = QS_SMRESULT | ((flags & SMTO_BLOCK) ? 0 : QS_SENDMESSAGE);
2258 req->changed_mask = req->wake_mask;
2259 req->skip_wait = 1;
2260 if (!wine_server_call( req ))
2261 wake_bits = reply->wake_bits;
2262 }
2263 SERVER_END_REQ;
2264
2265 if (wake_bits & QS_SMRESULT) return; /* got a result */
2266 if (wake_bits & QS_SENDMESSAGE)
2267 {
2268 /* Process the sent message immediately */
2269 process_sent_messages();
2270 continue;
2271 }
2272
2273 /* now wait for it */
2274
2275 ReleaseThunkLock( &dwlc );
2276 res = USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue,
2277 INFINITE, QS_SENDMESSAGE, 0 );
2278 if (dwlc) RestoreThunkLock( dwlc );
2279 }
2280 }
2281
2282 /***********************************************************************
2283 * put_message_in_queue
2284 *
2285 * Put a sent message into the destination queue.
2286 * For inter-process message, reply_size is set to expected size of reply data.
2287 */
2288 static BOOL put_message_in_queue( const struct send_message_info *info, size_t *reply_size )
2289 {
2290 struct packed_message data;
2291 message_data_t msg_data;
2292 unsigned int res;
2293 int i;
2294 timeout_t timeout = TIMEOUT_INFINITE;
2295
2296 /* Check for INFINITE timeout for compatibility with Win9x,
2297 * although Windows >= NT does not do so
2298 */
2299 if (info->type != MSG_NOTIFY &&
2300 info->type != MSG_CALLBACK &&
2301 info->type != MSG_POSTED &&
2302 info->timeout &&
2303 info->timeout != INFINITE)
2304 {
2305 /* timeout is signed despite the prototype */
2306 timeout = (timeout_t)max( 0, (int)info->timeout ) * -10000;
2307 }
2308
2309 data.count = 0;
2310 if (info->type == MSG_OTHER_PROCESS)
2311 {
2312 *reply_size = pack_message( info->hwnd, info->msg, info->wparam, info->lparam, &data );
2313 if (data.count == -1)
2314 {
2315 WARN( "cannot pack message %x\n", info->msg );
2316 return FALSE;
2317 }
2318 }
2319 else if (info->type == MSG_CALLBACK)
2320 {
2321 msg_data.callback.callback = info->callback;
2322 msg_data.callback.data = info->data;
2323 msg_data.callback.result = 0;
2324 data.data[0] = &msg_data;
2325 data.size[0] = sizeof(msg_data.callback);
2326 data.count = 1;
2327 }
2328 else if (info->type == MSG_POSTED && info->msg >= WM_DDE_FIRST && info->msg <= WM_DDE_LAST)
2329 {
2330 return post_dde_message( &data, info );
2331 }
2332
2333 SERVER_START_REQ( send_message )
2334 {
2335 req->id = info->dest_tid;
2336 req->type = info->type;
2337 req->flags = 0;
2338 req->win = info->hwnd;
2339 req->msg = info->msg;
2340 req->wparam = info->wparam;
2341 req->lparam = info->lparam;
2342 req->timeout = timeout;
2343
2344 if (info->flags & SMTO_ABORTIFHUNG) req->flags |= SEND_MSG_ABORT_IF_HUNG;
2345 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
2346 if ((res = wine_server_call( req )))
2347 {
2348 if (res == STATUS_INVALID_PARAMETER)
2349 /* FIXME: find a STATUS_ value for this one */
2350 SetLastError( ERROR_INVALID_THREAD_ID );
2351 else
2352 SetLastError( RtlNtStatusToDosError(res) );
2353 }
2354 }
2355 SERVER_END_REQ;
2356 return !res;
2357 }
2358
2359
2360 /***********************************************************************
2361 * retrieve_reply
2362 *
2363 * Retrieve a message reply from the server.
2364 */
2365 static LRESULT retrieve_reply( const struct send_message_info *info,
2366 size_t reply_size, LRESULT *result )
2367 {
2368 NTSTATUS status;
2369 void *reply_data = NULL;
2370
2371 if (reply_size)
2372 {
2373 if (!(reply_data = HeapAlloc( GetProcessHeap(), 0, reply_size )))
2374 {
2375 WARN( "no memory for reply, will be truncated\n" );
2376 reply_size = 0;
2377 }
2378 }
2379 SERVER_START_REQ( get_message_reply )
2380 {
2381 req->cancel = 1;
2382 if (reply_size) wine_server_set_reply( req, reply_data, reply_size );
2383 if (!(status = wine_server_call( req ))) *result = reply->result;
2384 reply_size = wine_server_reply_size( reply );
2385 }
2386 SERVER_END_REQ;
2387 if (!status && reply_size)
2388 unpack_reply( info->hwnd, info->msg, info->wparam, info->lparam, reply_data, reply_size );
2389
2390 HeapFree( GetProcessHeap(), 0, reply_data );
2391
2392 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx got reply %lx (err=%d)\n",
2393 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam,
2394 info->lparam, *result, status );
2395
2396 /* MSDN states that last error is 0 on timeout, but at least NT4 returns ERROR_TIMEOUT */
2397 if (status) SetLastError( RtlNtStatusToDosError(status) );
2398 return !status;
2399 }
2400
2401
2402 /***********************************************************************
2403 * send_inter_thread_message
2404 */
2405 static LRESULT send_inter_thread_message( const struct send_message_info *info, LRESULT *res_ptr )
2406 {
2407 size_t reply_size = 0;
2408
2409 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx\n",
2410 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam, info->lparam );
2411
2412 USER_CheckNotLock();
2413
2414 if (!put_message_in_queue( info, &reply_size )) return 0;
2415
2416 /* there's no reply to wait for on notify/callback messages */
2417 if (info->type == MSG_NOTIFY || info->type == MSG_CALLBACK) return 1;
2418
2419 wait_message_reply( info->flags );
2420 return retrieve_reply( info, reply_size, res_ptr );
2421 }
2422
2423
2424 /***********************************************************************
2425 * send_inter_thread_callback
2426 */
2427 static LRESULT send_inter_thread_callback( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
2428 LRESULT *result, void *arg )
2429 {
2430 struct send_message_info *info = arg;
2431 info->hwnd = hwnd;
2432 info->msg = msg;
2433 info->wparam = wp;
2434 info->lparam = lp;
2435 return send_inter_thread_message( info, result );
2436 }
2437
2438
2439 /***********************************************************************
2440 * send_message
2441 *
2442 * Backend implementation of the various SendMessage functions.
2443 */
2444 static BOOL send_message( struct send_message_info *info, DWORD_PTR *res_ptr, BOOL unicode )
2445 {
2446 DWORD dest_pid;
2447 BOOL ret;
2448 LRESULT result;
2449
2450 if (is_broadcast(info->hwnd))
2451 {
2452 EnumWindows( broadcast_message_callback, (LPARAM)info );
2453 if (res_ptr) *res_ptr = 1;
2454 return TRUE;
2455 }
2456
2457 if (!(info->dest_tid = GetWindowThreadProcessId( info->hwnd, &dest_pid ))) return FALSE;
2458
2459 if (USER_IsExitingThread( info->dest_tid )) return FALSE;
2460
2461 SPY_EnterMessage( SPY_SENDMESSAGE, info->hwnd, info->msg, info->wparam, info->lparam );
2462
2463 if (info->dest_tid == GetCurrentThreadId())
2464 {
2465 result = call_window_proc( info->hwnd, info->msg, info->wparam, info->lparam,
2466 unicode, TRUE, info->wm_char );
2467 if (info->type == MSG_CALLBACK)
2468 call_sendmsg_callback( info->callback, info->hwnd, info->msg, info->data, result );
2469 ret = TRUE;
2470 }
2471 else
2472 {
2473 if (dest_pid != GetCurrentProcessId() && (info->type == MSG_ASCII || info->type == MSG_UNICODE))
2474 info->type = MSG_OTHER_PROCESS;
2475
2476 /* MSG_ASCII can be sent unconverted except for WM_CHAR; everything else needs to be Unicode */
2477 if (!unicode && is_unicode_message( info->msg ) &&
2478 (info->type != MSG_ASCII || info->msg == WM_CHAR))
2479 ret = WINPROC_CallProcAtoW( send_inter_thread_callback, info->hwnd, info->msg,
2480 info->wparam, info->lparam, &result, info, info->wm_char );
2481 else
2482 ret = send_inter_thread_message( info, &result );
2483 }
2484
2485 SPY_ExitMessage( SPY_RESULT_OK, info->hwnd, info->msg, result, info->wparam, info->lparam );
2486 if (ret && res_ptr) *res_ptr = result;
2487 return ret;
2488 }
2489
2490
2491 /***********************************************************************
2492 * MSG_SendInternalMessageTimeout
2493 *
2494 * Same as SendMessageTimeoutW but sends the message to a specific thread
2495 * without requiring a window handle. Only works for internal Wine messages.
2496 */
2497 LRESULT MSG_SendInternalMessageTimeout( DWORD dest_pid, DWORD dest_tid,
2498 UINT msg, WPARAM wparam, LPARAM lparam,
2499 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2500 {
2501 struct send_message_info info;
2502 LRESULT ret, result;
2503
2504 assert( msg & 0x80000000 ); /* must be an internal Wine message */
2505
2506 info.type = MSG_UNICODE;
2507 info.dest_tid = dest_tid;
2508 info.hwnd = 0;
2509 info.msg = msg;
2510 info.wparam = wparam;
2511 info.lparam = lparam;
2512 info.flags = flags;
2513 info.timeout = timeout;
2514
2515 if (USER_IsExitingThread( dest_tid )) return 0;
2516
2517 if (dest_tid == GetCurrentThreadId())
2518 {
2519 result = handle_internal_message( 0, msg, wparam, lparam );
2520 ret = 1;
2521 }
2522 else
2523 {
2524 if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
2525 ret = send_inter_thread_message( &info, &result );
2526 }
2527 if (ret && res_ptr) *res_ptr = result;
2528 return ret;
2529 }
2530
2531
2532 /***********************************************************************
2533 * SendMessageTimeoutW (USER32.@)
2534 */
2535 LRESULT WINAPI SendMessageTimeoutW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2536 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2537 {
2538 struct send_message_info info;
2539
2540 info.type = MSG_UNICODE;
2541 info.hwnd = hwnd;
2542 info.msg = msg;
2543 info.wparam = wparam;
2544 info.lparam = lparam;
2545 info.flags = flags;
2546 info.timeout = timeout;
2547
2548 return send_message( &info, res_ptr, TRUE );
2549 }
2550
2551 /***********************************************************************
2552 * SendMessageTimeoutA (USER32.@)
2553 */
2554 LRESULT WINAPI SendMessageTimeoutA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2555 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2556 {
2557 struct send_message_info info;
2558
2559 info.type = MSG_ASCII;
2560 info.hwnd = hwnd;
2561 info.msg = msg;
2562 info.wparam = wparam;
2563 info.lparam = lparam;
2564 info.flags = flags;
2565 info.timeout = timeout;
2566 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2567
2568 return send_message( &info, res_ptr, FALSE );
2569 }
2570
2571
2572 /***********************************************************************
2573 * SendMessageW (USER32.@)
2574 */
2575 LRESULT WINAPI SendMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2576 {
2577 DWORD_PTR res = 0;
2578 struct send_message_info info;
2579
2580 info.type = MSG_UNICODE;
2581 info.hwnd = hwnd;
2582 info.msg = msg;
2583 info.wparam = wparam;
2584 info.lparam = lparam;
2585 info.flags = SMTO_NORMAL;
2586 info.timeout = 0;
2587
2588 send_message( &info, &res, TRUE );
2589 return res;
2590 }
2591
2592
2593 /***********************************************************************
2594 * SendMessageA (USER32.@)
2595 */
2596 LRESULT WINAPI SendMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2597 {
2598 DWORD_PTR res = 0;
2599 struct send_message_info info;
2600
2601 info.type = MSG_ASCII;
2602 info.hwnd = hwnd;
2603 info.msg = msg;
2604 info.wparam = wparam;
2605 info.lparam = lparam;
2606 info.flags = SMTO_NORMAL;
2607 info.timeout = 0;
2608 info.wm_char = WMCHAR_MAP_SENDMESSAGE;
2609
2610 send_message( &info, &res, FALSE );
2611 return res;
2612 }
2613
2614
2615 /***********************************************************************
2616 * SendNotifyMessageA (USER32.@)
2617 */
2618 BOOL WINAPI SendNotifyMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2619 {
2620 struct send_message_info info;
2621
2622 if (is_pointer_message(msg))
2623 {
2624 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2625 return FALSE;
2626 }
2627
2628 info.type = MSG_NOTIFY;
2629 info.hwnd = hwnd;
2630 info.msg = msg;
2631 info.wparam = wparam;
2632 info.lparam = lparam;
2633 info.flags = 0;
2634 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2635
2636 return send_message( &info, NULL, FALSE );
2637 }
2638
2639
2640 /***********************************************************************
2641 * SendNotifyMessageW (USER32.@)
2642 */
2643 BOOL WINAPI SendNotifyMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2644 {
2645 struct send_message_info info;
2646
2647 if (is_pointer_message(msg))
2648 {
2649 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2650 return FALSE;
2651 }
2652
2653 info.type = MSG_NOTIFY;
2654 info.hwnd = hwnd;
2655 info.msg = msg;
2656 info.wparam = wparam;
2657 info.lparam = lparam;
2658 info.flags = 0;
2659
2660 return send_message( &info, NULL, TRUE );
2661 }
2662
2663
2664 /***********************************************************************
2665 * SendMessageCallbackA (USER32.@)
2666 */
2667 BOOL WINAPI SendMessageCallbackA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2668 SENDASYNCPROC callback, ULONG_PTR data )
2669 {
2670 struct send_message_info info;
2671
2672 if (is_pointer_message(msg))
2673 {
2674 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2675 return FALSE;
2676 }
2677
2678 info.type = MSG_CALLBACK;
2679 info.hwnd = hwnd;
2680 info.msg = msg;
2681 info.wparam = wparam;
2682 info.lparam = lparam;
2683 info.callback = callback;
2684 info.data = data;
2685 info.flags = 0;
2686 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2687
2688 return send_message( &info, NULL, FALSE );
2689 }
2690
2691
2692 /***********************************************************************
2693 * SendMessageCallbackW (USER32.@)
2694 */
2695 BOOL WINAPI SendMessageCallbackW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2696 SENDASYNCPROC callback, ULONG_PTR data )
2697 {
2698 struct send_message_info info;
2699
2700 if (is_pointer_message(msg))
2701 {
2702 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2703 return FALSE;
2704 }
2705
2706 info.type = MSG_CALLBACK;
2707 info.hwnd = hwnd;
2708 info.msg = msg;
2709 info.wparam = wparam;
2710 info.lparam = lparam;
2711 info.callback = callback;
2712 info.data = data;
2713 info.flags = 0;
2714
2715 return send_message( &info, NULL, TRUE );
2716 }
2717
2718
2719 /***********************************************************************
2720 * ReplyMessage (USER32.@)
2721 */
2722 BOOL WINAPI ReplyMessage( LRESULT result )
2723 {
2724 struct received_message_info *info = get_user_thread_info()->receive_info;
2725
2726 if (!info) return FALSE;
2727 reply_message( info, result, FALSE );
2728 return TRUE;
2729 }
2730
2731
2732 /***********************************************************************
2733 * InSendMessage (USER32.@)
2734 */
2735 BOOL WINAPI InSendMessage(void)
2736 {
2737 return (InSendMessageEx(NULL) & (ISMEX_SEND|ISMEX_REPLIED)) == ISMEX_SEND;
2738 }
2739
2740
2741 /***********************************************************************
2742 * InSendMessageEx (USER32.@)
2743 */
2744 DWORD WINAPI InSendMessageEx( LPVOID reserved )
2745 {
2746 struct received_message_info *info = get_user_thread_info()->receive_info;
2747
2748 if (info) return info->flags;
2749 return ISMEX_NOSEND;
2750 }
2751
2752
2753 /***********************************************************************
2754 * PostMessageA (USER32.@)
2755 */
2756 BOOL WINAPI PostMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2757 {
2758 if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_POSTMESSAGE )) return TRUE;
2759 return PostMessageW( hwnd, msg, wparam, lparam );
2760 }
2761
2762
2763 /***********************************************************************
2764 * PostMessageW (USER32.@)
2765 */
2766 BOOL WINAPI PostMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2767 {
2768 struct send_message_info info;
2769
2770 if (is_pointer_message( msg ))
2771 {
2772 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2773 return FALSE;
2774 }
2775
2776 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx\n",
2777 hwnd, msg, SPY_GetMsgName(msg, hwnd), wparam, lparam );
2778
2779 info.type = MSG_POSTED;
2780 info.hwnd = hwnd;
2781 info.msg = msg;
2782 info.wparam = wparam;
2783 info.lparam = lparam;
2784 info.flags = 0;
2785
2786 if (is_broadcast(hwnd))
2787 {
2788 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2789 return TRUE;
2790 }
2791
2792 if (!hwnd) return PostThreadMessageW( GetCurrentThreadId(), msg, wparam, lparam );
2793
2794 if (!(info.dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2795
2796 if (USER_IsExitingThread( info.dest_tid )) return TRUE;
2797
2798 return put_message_in_queue( &info, NULL );
2799 }
2800
2801
2802 /**********************************************************************
2803 * PostThreadMessageA (USER32.@)
2804 */
2805 BOOL WINAPI PostThreadMessageA( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2806 {
2807 if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_POSTMESSAGE )) return TRUE;
2808 return PostThreadMessageW( thread, msg, wparam, lparam );
2809 }
2810
2811
2812 /**********************************************************************
2813 * PostThreadMessageW (USER32.@)
2814 */
2815 BOOL WINAPI PostThreadMessageW( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2816 {
2817 struct send_message_info info;
2818
2819 if (is_pointer_message( msg ))
2820 {
2821 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2822 return FALSE;
2823 }
2824 if (USER_IsExitingThread( thread )) return TRUE;
2825
2826 info.type = MSG_POSTED;
2827 info.dest_tid = thread;
2828 info.hwnd = 0;
2829 info.msg = msg;
2830 info.wparam = wparam;
2831 info.lparam = lparam;
2832 info.flags = 0;
2833 return put_message_in_queue( &info, NULL );
2834 }
2835
2836
2837 /***********************************************************************
2838 * PostQuitMessage (USER32.@)
2839 *
2840 * Posts a quit message to the current thread's message queue.
2841 *
2842 * PARAMS
2843 * exit_code [I] Exit code to return from message loop.
2844 *
2845 * RETURNS
2846 * Nothing.
2847 *
2848 * NOTES
2849 * This function is not the same as calling:
2850 *|PostThreadMessage(GetCurrentThreadId(), WM_QUIT, exit_code, 0);
2851 * It instead sets a flag in the message queue that signals it to generate
2852 * a WM_QUIT message when there are no other pending sent or posted messages
2853 * in the queue.
2854 */
2855 void WINAPI PostQuitMessage( INT exit_code )
2856 {
2857 SERVER_START_REQ( post_quit_message )
2858 {
2859 req->exit_code = exit_code;
2860 wine_server_call( req );
2861 }
2862 SERVER_END_REQ;
2863 }
2864
2865
2866 /***********************************************************************
2867 * PeekMessageW (USER32.@)
2868 */
2869 BOOL WINAPI PeekMessageW( MSG *msg_out, HWND hwnd, UINT first, UINT last, UINT flags )
2870 {
2871 MSG msg;
2872
2873 USER_CheckNotLock();
2874
2875 /* check for graphics events */
2876 USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
2877
2878 if (!peek_message( &msg, hwnd, first, last, flags, 0 ))
2879 {
2880 if (!(flags & PM_NOYIELD))
2881 {
2882 DWORD count;
2883 ReleaseThunkLock(&count);
2884 NtYieldExecution();
2885 if (count) RestoreThunkLock(count);
2886 }
2887 return FALSE;
2888 }
2889
2890 /* copy back our internal safe copy of message data to msg_out.
2891 * msg_out is a variable from the *program*, so it can't be used
2892 * internally as it can get "corrupted" by our use of SendMessage()
2893 * (back to the program) inside the message handling itself. */
2894 if (!msg_out)
2895 {
2896 SetLastError( ERROR_NOACCESS );
2897 return FALSE;
2898 }
2899 *msg_out = msg;
2900 return TRUE;
2901 }
2902
2903
2904 /***********************************************************************
2905 * PeekMessageA (USER32.@)
2906 */
2907 BOOL WINAPI PeekMessageA( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
2908 {
2909 if (get_pending_wmchar( msg, first, last, (flags & PM_REMOVE) )) return TRUE;
2910 if (!PeekMessageW( msg, hwnd, first, last, flags )) return FALSE;
2911 map_wparam_WtoA( msg, (flags & PM_REMOVE) );
2912 return TRUE;
2913 }
2914
2915
2916 /***********************************************************************
2917 * GetMessageW (USER32.@)
2918 */
2919 BOOL WINAPI GetMessageW( MSG *msg, HWND hwnd, UINT first, UINT last )
2920 {
2921 HANDLE server_queue = get_server_queue_handle();
2922 unsigned int mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
2923
2924 USER_CheckNotLock();
2925
2926 /* check for graphics events */
2927 USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
2928
2929 if (first || last)
2930 {
2931 if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
2932 if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
2933 ((first <= WM_NCMOUSELAST) && (last >= WM_NCMOUSEFIRST)) ) mask |= QS_MOUSE;
2934 if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER;
2935 if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER;
2936 if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT;
2937 }
2938 else mask = QS_ALLINPUT;
2939
2940 while (!peek_message( msg, hwnd, first, last, PM_REMOVE | (mask << 16), mask ))
2941 {
2942 DWORD dwlc;
2943
2944 ReleaseThunkLock( &dwlc );
2945 USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue, INFINITE, mask, 0 );
2946 if (dwlc) RestoreThunkLock( dwlc );
2947 }
2948
2949 return (msg->message != WM_QUIT);
2950 }
2951
2952
2953 /***********************************************************************
2954 * GetMessageA (USER32.@)
2955 */
2956 BOOL WINAPI GetMessageA( MSG *msg, HWND hwnd, UINT first, UINT last )
2957 {
2958 if (get_pending_wmchar( msg, first, last, TRUE )) return TRUE;
2959 GetMessageW( msg, hwnd, first, last );
2960 map_wparam_WtoA( msg, TRUE );
2961 return (msg->message != WM_QUIT);
2962 }
2963
2964
2965 /***********************************************************************
2966 * IsDialogMessageA (USER32.@)
2967 * IsDialogMessage (USER32.@)
2968 */
2969 BOOL WINAPI IsDialogMessageA( HWND hwndDlg, LPMSG pmsg )
2970 {
2971 MSG msg = *pmsg;
2972 map_wparam_AtoW( msg.message, &msg.wParam, WMCHAR_MAP_NOMAPPING );
2973 return IsDialogMessageW( hwndDlg, &msg );
2974 }
2975
2976
2977 /***********************************************************************
2978 * TranslateMessage (USER32.@)
2979 *
2980 * Implementation of TranslateMessage.
2981 *
2982 * TranslateMessage translates virtual-key messages into character-messages,
2983 * as follows :
2984 * WM_KEYDOWN/WM_KEYUP combinations produce a WM_CHAR or WM_DEADCHAR message.
2985 * ditto replacing WM_* with WM_SYS*
2986 * This produces WM_CHAR messages only for keys mapped to ASCII characters
2987 * by the keyboard driver.
2988 *
2989 * If the message is WM_KEYDOWN, WM_KEYUP, WM_SYSKEYDOWN, or WM_SYSKEYUP, the
2990 * return value is nonzero, regardless of the translation.
2991 *
2992 */
2993 BOOL WINAPI TranslateMessage( const MSG *msg )
2994 {
2995 UINT message;
2996 WCHAR wp[2];
2997 BYTE state[256];
2998
2999 if (msg->message < WM_KEYFIRST || msg->message > WM_KEYLAST) return FALSE;
3000 if (msg->message != WM_KEYDOWN && msg->message != WM_SYSKEYDOWN) return TRUE;
3001
3002 TRACE_(key)("Translating key %s (%04lx), scancode %02x\n",
3003 SPY_GetVKeyName(msg->wParam), msg->wParam, LOBYTE(HIWORD(msg->lParam)));
3004
3005 if ( msg->wParam == VK_PROCESSKEY )
3006 return ImmTranslateMessage(msg->hwnd, msg->message, msg->wParam, 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 typedef struct BroadcastParm
3359 {
3360 DWORD flags;
3361 LPDWORD recipients;
3362 UINT msg;
3363 WPARAM wp;
3364 LPARAM lp;
3365 DWORD success;
3366 HWINSTA winsta;
3367 } BroadcastParm;
3368
3369 static BOOL CALLBACK bcast_childwindow( HWND hw, LPARAM lp )
3370 {
3371 BroadcastParm *parm = (BroadcastParm*)lp;
3372 DWORD_PTR retval = 0;
3373 LRESULT lresult;
3374
3375 if (parm->flags & BSF_IGNORECURRENTTASK && WIN_IsCurrentProcess(hw))
3376 {
3377 TRACE("Not telling myself %p\n", hw);
3378 return TRUE;
3379 }
3380
3381 /* I don't know 100% for sure if this is what Windows does, but it fits the tests */
3382 if (parm->flags & BSF_QUERY)
3383 {
3384 TRACE("Telling window %p using SendMessageTimeout\n", hw);
3385
3386 /* Not tested for conflicting flags */
3387 if (parm->flags & BSF_FORCEIFHUNG || parm->flags & BSF_NOHANG)
3388 lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_ABORTIFHUNG, 2000, &retval );
3389 else if (parm->flags & BSF_NOTIMEOUTIFNOTHUNG)
3390 lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_NOTIMEOUTIFNOTHUNG, 2000, &retval );
3391 else
3392 lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_NORMAL, 2000, &retval );
3393
3394 if (!lresult && GetLastError() == ERROR_TIMEOUT)
3395 {
3396 WARN("Timed out!\n");
3397 if (!(parm->flags & BSF_FORCEIFHUNG))
3398 goto fail;
3399 }
3400 if (retval == BROADCAST_QUERY_DENY)
3401 goto fail;
3402
3403 return TRUE;
3404
3405 fail:
3406 parm->success = 0;
3407 return FALSE;
3408 }
3409 else if (parm->flags & BSF_POSTMESSAGE)
3410 {
3411 TRACE("Telling window %p using PostMessage\n", hw);
3412 PostMessageW( hw, parm->msg, parm->wp, parm->lp );
3413 }
3414 else
3415 {
3416 TRACE("Telling window %p using SendNotifyMessage\n", hw);
3417 SendNotifyMessageW( hw, parm->msg, parm->wp, parm->lp );
3418 }
3419
3420 return TRUE;
3421 }
3422
3423 static BOOL CALLBACK bcast_desktop( LPWSTR desktop, LPARAM lp )
3424 {
3425 BOOL ret;
3426 HDESK hdesktop;
3427 BroadcastParm *parm = (BroadcastParm*)lp;
3428
3429 TRACE("desktop: %s\n", debugstr_w( desktop ));
3430
3431 hdesktop = open_winstation_desktop( parm->winsta, desktop, 0, FALSE, DESKTOP_ENUMERATE|DESKTOP_WRITEOBJECTS|STANDARD_RIGHTS_WRITE );
3432 if (!hdesktop)
3433 {
3434 FIXME("Could not open desktop %s\n", debugstr_w(desktop));
3435 return TRUE;
3436 }
3437
3438 ret = EnumDesktopWindows( hdesktop, bcast_childwindow, lp );
3439 CloseDesktop(hdesktop);
3440 TRACE("-->%d\n", ret);
3441 return parm->success;
3442 }
3443
3444 static BOOL CALLBACK bcast_winsta( LPWSTR winsta, LPARAM lp )
3445 {
3446 BOOL ret;
3447 HWINSTA hwinsta = OpenWindowStationW( winsta, FALSE, WINSTA_ENUMDESKTOPS );
3448 TRACE("hwinsta: %p/%s/%08x\n", hwinsta, debugstr_w( winsta ), GetLastError());
3449 if (!hwinsta)
3450 return TRUE;
3451 ((BroadcastParm *)lp)->winsta = hwinsta;
3452 ret = EnumDesktopsW( hwinsta, bcast_desktop, lp );
3453 CloseWindowStation( hwinsta );
3454 TRACE("-->%d\n", ret);
3455 return ret;
3456 }
3457
3458 /***********************************************************************
3459 * BroadcastSystemMessageA (USER32.@)
3460 * BroadcastSystemMessage (USER32.@)
3461 */
3462 LONG WINAPI BroadcastSystemMessageA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3463 {
3464 return BroadcastSystemMessageExA( flags, recipients, msg, wp, lp, NULL );
3465 }
3466
3467
3468 /***********************************************************************
3469 * BroadcastSystemMessageW (USER32.@)
3470 */
3471 LONG WINAPI BroadcastSystemMessageW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3472 {
3473 return BroadcastSystemMessageExW( flags, recipients, msg, wp, lp, NULL );
3474 }
3475
3476 /***********************************************************************
3477 * BroadcastSystemMessageExA (USER32.@)
3478 */
3479 LONG WINAPI BroadcastSystemMessageExA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp, PBSMINFO pinfo )
3480 {
3481 map_wparam_AtoW( msg, &wp, WMCHAR_MAP_NOMAPPING );
3482 return BroadcastSystemMessageExW( flags, recipients, msg, wp, lp, NULL );
3483 }
3484
3485
3486 /***********************************************************************
3487 * BroadcastSystemMessageExW (USER32.@)
3488 */
3489 LONG WINAPI BroadcastSystemMessageExW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp, PBSMINFO pinfo )
3490 {
3491 BroadcastParm parm;
3492 DWORD recips = BSM_ALLCOMPONENTS;
3493 BOOL ret = TRUE;
3494 static const DWORD all_flags = ( BSF_QUERY | BSF_IGNORECURRENTTASK | BSF_FLUSHDISK | BSF_NOHANG
3495 | BSF_POSTMESSAGE | BSF_FORCEIFHUNG | BSF_NOTIMEOUTIFNOTHUNG
3496 | BSF_ALLOWSFW | BSF_SENDNOTIFYMESSAGE | BSF_RETURNHDESK | BSF_LUID );
3497
3498 TRACE("Flags: %08x, recipients: %p(0x%x), msg: %04x, wparam: %08lx, lparam: %08lx\n", flags, recipients,
3499 (recipients ? *recipients : recips), msg, wp, lp);
3500
3501 if (flags & ~all_flags)
3502 {
3503 SetLastError(ERROR_INVALID_PARAMETER);
3504 return 0;
3505 }
3506
3507 if (!recipients)
3508 recipients = &recips;
3509
3510 if ( pinfo && flags & BSF_QUERY )
3511 FIXME("Not returning PBSMINFO information yet\n");
3512
3513 parm.flags = flags;
3514 parm.recipients = recipients;
3515 parm.msg = msg;
3516 parm.wp = wp;
3517 parm.lp = lp;
3518 parm.success = TRUE;
3519
3520 if (*recipients & BSM_ALLDESKTOPS || *recipients == BSM_ALLCOMPONENTS)
3521 ret = EnumWindowStationsW(bcast_winsta, (LONG_PTR)&parm);
3522 else if (*recipients & BSM_APPLICATIONS)
3523 {
3524 EnumWindows(bcast_childwindow, (LONG_PTR)&parm);
3525 ret = parm.success;
3526 }
3527 else
3528 FIXME("Recipients %08x not supported!\n", *recipients);
3529
3530 return ret;
3531 }
3532
3533 /***********************************************************************
3534 * SetMessageQueue (USER32.@)
3535 */
3536 BOOL WINAPI SetMessageQueue( INT size )
3537 {
3538 /* now obsolete the message queue will be expanded dynamically as necessary */
3539 return TRUE;
3540 }
3541
3542
3543 /***********************************************************************
3544 * MessageBeep (USER32.@)
3545 */
3546 BOOL WINAPI MessageBeep( UINT i )
3547 {
3548 BOOL active = TRUE;
3549 SystemParametersInfoA( SPI_GETBEEP, 0, &active, FALSE );
3550 if (active) USER_Driver->pBeep();
3551 return TRUE;
3552 }
3553
3554
3555 /***********************************************************************
3556 * SetTimer (USER32.@)
3557 */
3558 UINT_PTR WINAPI SetTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3559 {
3560 UINT_PTR ret;
3561 WNDPROC winproc = 0;
3562
3563 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, NULL );
3564
3565 SERVER_START_REQ( set_win_timer )
3566 {
3567 req->win = hwnd;
3568 req->msg = WM_TIMER;
3569 req->id = id;
3570 req->rate = max( timeout, SYS_TIMER_RATE );
3571 req->lparam = (unsigned long)winproc;
3572 if (!wine_server_call_err( req ))
3573 {
3574 ret = reply->id;
3575 if (!ret) ret = TRUE;
3576 }
3577 else ret = 0;
3578 }
3579 SERVER_END_REQ;
3580
3581 TRACE("Added %p %lx %p timeout %d\n", hwnd, id, winproc, timeout );
3582 return ret;
3583 }
3584
3585
3586 /***********************************************************************
3587 * SetSystemTimer (USER32.@)
3588 */
3589 UINT_PTR WINAPI SetSystemTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3590 {
3591 UINT_PTR ret;
3592 WNDPROC winproc = 0;
3593
3594 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, NULL );
3595
3596 SERVER_START_REQ( set_win_timer )
3597 {
3598 req->win = hwnd;
3599 req->msg = WM_SYSTIMER;
3600 req->id = id;
3601 req->rate = max( timeout, SYS_TIMER_RATE );
3602 req->lparam = (unsigned long)winproc;
3603 if (!wine_server_call_err( req ))
3604 {
3605 ret = reply->id;
3606 if (!ret) ret = TRUE;
3607 }
3608 else ret = 0;
3609 }
3610 SERVER_END_REQ;
3611
3612 TRACE("Added %p %lx %p timeout %d\n", hwnd, id, winproc, timeout );
3613 return ret;
3614 }
3615
3616
3617 /***********************************************************************
3618 * KillTimer (USER32.@)
3619 */
3620 BOOL WINAPI KillTimer( HWND hwnd, UINT_PTR id )
3621 {
3622 BOOL ret;
3623
3624 SERVER_START_REQ( kill_win_timer )
3625 {
3626 req->win = hwnd;
3627 req->msg = WM_TIMER;
3628 req->id = id;
3629 ret = !wine_server_call_err( req );
3630 }
3631 SERVER_END_REQ;
3632 return ret;
3633 }
3634
3635
3636 /***********************************************************************
3637 * KillSystemTimer (USER32.@)
3638 */
3639 BOOL WINAPI KillSystemTimer( HWND hwnd, UINT_PTR id )
3640 {
3641 BOOL ret;
3642
3643 SERVER_START_REQ( kill_win_timer )
3644 {
3645 req->win = hwnd;
3646 req->msg = WM_SYSTIMER;
3647 req->id = id;
3648 ret = !wine_server_call_err( req );
3649 }
3650 SERVER_END_REQ;
3651 return ret;
3652 }
3653
3654
3655 /**********************************************************************
3656 * GetGUIThreadInfo (USER32.@)
3657 */
3658 BOOL WINAPI GetGUIThreadInfo( DWORD id, GUITHREADINFO *info )
3659 {
3660 BOOL ret;
3661
3662 SERVER_START_REQ( get_thread_input )
3663 {
3664 req->tid = id;
3665 if ((ret = !wine_server_call_err( req )))
3666 {
3667 info->flags = 0;
3668 info->hwndActive = reply->active;
3669 info->hwndFocus = reply->focus;
3670 info->hwndCapture = reply->capture;
3671 info->hwndMenuOwner = reply->menu_owner;
3672 info->hwndMoveSize = reply->move_size;
3673 info->hwndCaret = reply->caret;
3674 info->rcCaret.left = reply->rect.left;
3675 info->rcCaret.top = reply->rect.top;
3676 info->rcCaret.right = reply->rect.right;
3677 info->rcCaret.bottom = reply->rect.bottom;
3678 if (reply->menu_owner) info->flags |= GUI_INMENUMODE;
3679 if (reply->move_size) info->flags |= GUI_INMOVESIZE;
3680 if (reply->caret) info->flags |= GUI_CARETBLINKING;
3681 }
3682 }
3683 SERVER_END_REQ;
3684 return ret;
3685 }
3686
3687
3688 /******************************************************************
3689 * IsHungAppWindow (USER32.@)
3690 *
3691 */
3692 BOOL WINAPI IsHungAppWindow( HWND hWnd )
3693 {
3694 BOOL ret;
3695
3696 SERVER_START_REQ( is_window_hung )
3697 {
3698 req->win = hWnd;
3699 ret = !wine_server_call_err( req ) && reply->is_hung;
3700 }
3701 SERVER_END_REQ;
3702 return ret;
3703 }
Maarten's multimedia branch