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wgl: Move wglGetCurrentDC to gdi32.
[wine/dibdrv.git] / dlls / user / message.c
blobb92951c7de1c4750a114dcfe015900ab78f9efb9
1 /*
2 * Window messaging support
3 *
4 * Copyright 2001 Alexandre Julliard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include "config.h"
22 #include "wine/port.h"
23
24 #include <assert.h>
25 #include <stdarg.h>
26
27 #include "ntstatus.h"
28 #define WIN32_NO_STATUS
29 #include "windef.h"
30 #include "winbase.h"
31 #include "wingdi.h"
32 #include "winuser.h"
33 #include "winerror.h"
34 #include "winnls.h"
35 #include "dbt.h"
36 #include "dde.h"
37 #include "wine/unicode.h"
38 #include "wine/server.h"
39 #include "user_private.h"
40 #include "win.h"
41 #include "controls.h"
42 #include "winproc.h"
43 #include "wine/debug.h"
44
45 WINE_DEFAULT_DEBUG_CHANNEL(msg);
46 WINE_DECLARE_DEBUG_CHANNEL(relay);
47 WINE_DECLARE_DEBUG_CHANNEL(key);
48
49 #define WM_NCMOUSEFIRST WM_NCMOUSEMOVE
50 #define WM_NCMOUSELAST (WM_NCMOUSEFIRST+(WM_MOUSELAST-WM_MOUSEFIRST))
51
52 #define MAX_PACK_COUNT 4
53 #define MAX_SENDMSG_RECURSION 64
54
55 #define SYS_TIMER_RATE 55 /* min. timer rate in ms (actually 54.925)*/
56
57 /* description of the data fields that need to be packed along with a sent message */
58 struct packed_message
59 {
60 int count;
61 const void *data[MAX_PACK_COUNT];
62 size_t size[MAX_PACK_COUNT];
63 };
64
65 /* info about the message currently being received by the current thread */
66 struct received_message_info
67 {
68 enum message_type type;
69 MSG msg;
70 UINT flags; /* InSendMessageEx return flags */
71 };
72
73 /* structure to group all parameters for sent messages of the various kinds */
74 struct send_message_info
75 {
76 enum message_type type;
77 DWORD dest_tid;
78 HWND hwnd;
79 UINT msg;
80 WPARAM wparam;
81 LPARAM lparam;
82 UINT flags; /* flags for SendMessageTimeout */
83 UINT timeout; /* timeout for SendMessageTimeout */
84 SENDASYNCPROC callback; /* callback function for SendMessageCallback */
85 ULONG_PTR data; /* callback data */
86 };
87
88
89 /* flag for messages that contain pointers */
90 /* 32 messages per entry, messages 0..31 map to bits 0..31 */
91
92 #define SET(msg) (1 << ((msg) & 31))
93
94 static const unsigned int message_pointer_flags[] =
95 {
96 /* 0x00 - 0x1f */
97 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) |
98 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
99 /* 0x20 - 0x3f */
100 SET(WM_GETMINMAXINFO) | SET(WM_DRAWITEM) | SET(WM_MEASUREITEM) | SET(WM_DELETEITEM) |
101 SET(WM_COMPAREITEM),
102 /* 0x40 - 0x5f */
103 SET(WM_WINDOWPOSCHANGING) | SET(WM_WINDOWPOSCHANGED) | SET(WM_COPYDATA) |
104 SET(WM_NOTIFY) | SET(WM_HELP),
105 /* 0x60 - 0x7f */
106 SET(WM_STYLECHANGING) | SET(WM_STYLECHANGED),
107 /* 0x80 - 0x9f */
108 SET(WM_NCCREATE) | SET(WM_NCCALCSIZE) | SET(WM_GETDLGCODE),
109 /* 0xa0 - 0xbf */
110 SET(EM_GETSEL) | SET(EM_GETRECT) | SET(EM_SETRECT) | SET(EM_SETRECTNP),
111 /* 0xc0 - 0xdf */
112 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETTABSTOPS),
113 /* 0xe0 - 0xff */
114 SET(SBM_GETRANGE) | SET(SBM_SETSCROLLINFO) | SET(SBM_GETSCROLLINFO) | SET(SBM_GETSCROLLBARINFO),
115 /* 0x100 - 0x11f */
116 0,
117 /* 0x120 - 0x13f */
118 0,
119 /* 0x140 - 0x15f */
120 SET(CB_GETEDITSEL) | SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) |
121 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) |
122 SET(CB_GETDROPPEDCONTROLRECT) | SET(CB_FINDSTRINGEXACT),
123 /* 0x160 - 0x17f */
124 0,
125 /* 0x180 - 0x19f */
126 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_SELECTSTRING) |
127 SET(LB_DIR) | SET(LB_FINDSTRING) |
128 SET(LB_GETSELITEMS) | SET(LB_SETTABSTOPS) | SET(LB_ADDFILE) | SET(LB_GETITEMRECT),
129 /* 0x1a0 - 0x1bf */
130 SET(LB_FINDSTRINGEXACT),
131 /* 0x1c0 - 0x1df */
132 0,
133 /* 0x1e0 - 0x1ff */
134 0,
135 /* 0x200 - 0x21f */
136 SET(WM_NEXTMENU) | SET(WM_SIZING) | SET(WM_MOVING) | SET(WM_DEVICECHANGE),
137 /* 0x220 - 0x23f */
138 SET(WM_MDICREATE) | SET(WM_MDIGETACTIVE) | SET(WM_DROPOBJECT) |
139 SET(WM_QUERYDROPOBJECT) | SET(WM_DRAGLOOP) | SET(WM_DRAGSELECT) | SET(WM_DRAGMOVE),
140 /* 0x240 - 0x25f */
141 0,
142 /* 0x260 - 0x27f */
143 0,
144 /* 0x280 - 0x29f */
145 0,
146 /* 0x2a0 - 0x2bf */
147 0,
148 /* 0x2c0 - 0x2df */
149 0,
150 /* 0x2e0 - 0x2ff */
151 0,
152 /* 0x300 - 0x31f */
153 SET(WM_ASKCBFORMATNAME)
154 };
155
156 /* flags for messages that contain Unicode strings */
157 static const unsigned int message_unicode_flags[] =
158 {
159 /* 0x00 - 0x1f */
160 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) | SET(WM_GETTEXTLENGTH) |
161 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
162 /* 0x20 - 0x3f */
163 SET(WM_CHARTOITEM),
164 /* 0x40 - 0x5f */
165 0,
166 /* 0x60 - 0x7f */
167 0,
168 /* 0x80 - 0x9f */
169 SET(WM_NCCREATE),
170 /* 0xa0 - 0xbf */
171 0,
172 /* 0xc0 - 0xdf */
173 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETPASSWORDCHAR),
174 /* 0xe0 - 0xff */
175 0,
176 /* 0x100 - 0x11f */
177 SET(WM_CHAR) | SET(WM_DEADCHAR) | SET(WM_SYSCHAR) | SET(WM_SYSDEADCHAR),
178 /* 0x120 - 0x13f */
179 SET(WM_MENUCHAR),
180 /* 0x140 - 0x15f */
181 SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) | SET(CB_GETLBTEXTLEN) |
182 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) | SET(CB_FINDSTRINGEXACT),
183 /* 0x160 - 0x17f */
184 0,
185 /* 0x180 - 0x19f */
186 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_GETTEXTLEN) |
187 SET(LB_SELECTSTRING) | SET(LB_DIR) | SET(LB_FINDSTRING) | SET(LB_ADDFILE),
188 /* 0x1a0 - 0x1bf */
189 SET(LB_FINDSTRINGEXACT),
190 /* 0x1c0 - 0x1df */
191 0,
192 /* 0x1e0 - 0x1ff */
193 0,
194 /* 0x200 - 0x21f */
195 0,
196 /* 0x220 - 0x23f */
197 SET(WM_MDICREATE),
198 /* 0x240 - 0x25f */
199 0,
200 /* 0x260 - 0x27f */
201 0,
202 /* 0x280 - 0x29f */
203 SET(WM_IME_CHAR),
204 /* 0x2a0 - 0x2bf */
205 0,
206 /* 0x2c0 - 0x2df */
207 0,
208 /* 0x2e0 - 0x2ff */
209 0,
210 /* 0x300 - 0x31f */
211 SET(WM_PAINTCLIPBOARD) | SET(WM_SIZECLIPBOARD) | SET(WM_ASKCBFORMATNAME)
212 };
213
214 /* check whether a given message type includes pointers */
215 inline static int is_pointer_message( UINT message )
216 {
217 if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
218 return (message_pointer_flags[message / 32] & SET(message)) != 0;
219 }
220
221 /* check whether a given message type contains Unicode (or ASCII) chars */
222 inline static int is_unicode_message( UINT message )
223 {
224 if (message >= 8*sizeof(message_unicode_flags)) return FALSE;
225 return (message_unicode_flags[message / 32] & SET(message)) != 0;
226 }
227
228 #undef SET
229
230 /* add a data field to a packed message */
231 inline static void push_data( struct packed_message *data, const void *ptr, size_t size )
232 {
233 data->data[data->count] = ptr;
234 data->size[data->count] = size;
235 data->count++;
236 }
237
238 /* add a string to a packed message */
239 inline static void push_string( struct packed_message *data, LPCWSTR str )
240 {
241 push_data( data, str, (strlenW(str) + 1) * sizeof(WCHAR) );
242 }
243
244 /* retrieve a pointer to data from a packed message and increment the buffer pointer */
245 inline static void *get_data( void **buffer, size_t size )
246 {
247 void *ret = *buffer;
248 *buffer = (char *)*buffer + size;
249 return ret;
250 }
251
252 /* make sure that the buffer contains a valid null-terminated Unicode string */
253 inline static BOOL check_string( LPCWSTR str, size_t size )
254 {
255 for (size /= sizeof(WCHAR); size; size--, str++)
256 if (!*str) return TRUE;
257 return FALSE;
258 }
259
260 /* make sure that there is space for 'size' bytes in buffer, growing it if needed */
261 inline static void *get_buffer_space( void **buffer, size_t size )
262 {
263 void *ret;
264
265 if (*buffer)
266 {
267 if (!(ret = HeapReAlloc( GetProcessHeap(), 0, *buffer, size )))
268 HeapFree( GetProcessHeap(), 0, *buffer );
269 }
270 else ret = HeapAlloc( GetProcessHeap(), 0, size );
271
272 *buffer = ret;
273 return ret;
274 }
275
276 /* retrieve a string pointer from packed data */
277 inline static LPWSTR get_string( void **buffer )
278 {
279 return get_data( buffer, (strlenW( (LPWSTR)*buffer ) + 1) * sizeof(WCHAR) );
280 }
281
282 /* check whether a combobox expects strings or ids in CB_ADDSTRING/CB_INSERTSTRING */
283 inline static BOOL combobox_has_strings( HWND hwnd )
284 {
285 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
286 return (!(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) || (style & CBS_HASSTRINGS));
287 }
288
289 /* check whether a listbox expects strings or ids in LB_ADDSTRING/LB_INSERTSTRING */
290 inline static BOOL listbox_has_strings( HWND hwnd )
291 {
292 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
293 return (!(style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE)) || (style & LBS_HASSTRINGS));
294 }
295
296 /* check whether message is in the range of keyboard messages */
297 inline static BOOL is_keyboard_message( UINT message )
298 {
299 return (message >= WM_KEYFIRST && message <= WM_KEYLAST);
300 }
301
302 /* check whether message is in the range of mouse messages */
303 inline static BOOL is_mouse_message( UINT message )
304 {
305 return ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) ||
306 (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST));
307 }
308
309 /* check whether message matches the specified hwnd filter */
310 inline static BOOL check_hwnd_filter( const MSG *msg, HWND hwnd_filter )
311 {
312 if (!hwnd_filter) return TRUE;
313 return (msg->hwnd == hwnd_filter || IsChild( hwnd_filter, msg->hwnd ));
314 }
315
316
317 /***********************************************************************
318 * broadcast_message_callback
319 *
320 * Helper callback for broadcasting messages.
321 */
322 static BOOL CALLBACK broadcast_message_callback( HWND hwnd, LPARAM lparam )
323 {
324 struct send_message_info *info = (struct send_message_info *)lparam;
325 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & (WS_POPUP|WS_CAPTION))) return TRUE;
326 switch(info->type)
327 {
328 case MSG_UNICODE:
329 SendMessageTimeoutW( hwnd, info->msg, info->wparam, info->lparam,
330 info->flags, info->timeout, NULL );
331 break;
332 case MSG_ASCII:
333 SendMessageTimeoutA( hwnd, info->msg, info->wparam, info->lparam,
334 info->flags, info->timeout, NULL );
335 break;
336 case MSG_NOTIFY:
337 SendNotifyMessageW( hwnd, info->msg, info->wparam, info->lparam );
338 break;
339 case MSG_CALLBACK:
340 SendMessageCallbackW( hwnd, info->msg, info->wparam, info->lparam,
341 info->callback, info->data );
342 break;
343 case MSG_POSTED:
344 PostMessageW( hwnd, info->msg, info->wparam, info->lparam );
345 break;
346 default:
347 ERR( "bad type %d\n", info->type );
348 break;
349 }
350 return TRUE;
351 }
352
353
354 /***********************************************************************
355 * map_wparam_AtoW
356 *
357 * Convert the wparam of an ASCII message to Unicode.
358 */
359 static WPARAM map_wparam_AtoW( UINT message, WPARAM wparam )
360 {
361 switch(message)
362 {
363 case WM_CHARTOITEM:
364 case EM_SETPASSWORDCHAR:
365 case WM_CHAR:
366 case WM_DEADCHAR:
367 case WM_SYSCHAR:
368 case WM_SYSDEADCHAR:
369 case WM_MENUCHAR:
370 {
371 char ch[2];
372 WCHAR wch[2];
373 ch[0] = (wparam & 0xff);
374 ch[1] = (wparam >> 8);
375 MultiByteToWideChar(CP_ACP, 0, ch, 2, wch, 2);
376 wparam = MAKEWPARAM(wch[0], wch[1]);
377 }
378 break;
379 case WM_IME_CHAR:
380 {
381 char ch[2];
382 WCHAR wch;
383 ch[0] = (wparam >> 8);
384 ch[1] = (wparam & 0xff);
385 if (ch[0]) MultiByteToWideChar(CP_ACP, 0, ch, 2, &wch, 1);
386 else MultiByteToWideChar(CP_ACP, 0, &ch[1], 1, &wch, 1);
387 wparam = MAKEWPARAM( wch, HIWORD(wparam) );
388 }
389 break;
390 }
391 return wparam;
392 }
393
394
395 /***********************************************************************
396 * map_wparam_WtoA
397 *
398 * Convert the wparam of a Unicode message to ASCII.
399 */
400 static WPARAM map_wparam_WtoA( UINT message, WPARAM wparam )
401 {
402 switch(message)
403 {
404 case WM_CHARTOITEM:
405 case EM_SETPASSWORDCHAR:
406 case WM_CHAR:
407 case WM_DEADCHAR:
408 case WM_SYSCHAR:
409 case WM_SYSDEADCHAR:
410 case WM_MENUCHAR:
411 {
412 WCHAR wch[2];
413 BYTE ch[2];
414 wch[0] = LOWORD(wparam);
415 wch[1] = HIWORD(wparam);
416 WideCharToMultiByte( CP_ACP, 0, wch, 2, (LPSTR)ch, 2, NULL, NULL );
417 wparam = MAKEWPARAM( ch[0] | (ch[1] << 8), 0 );
418 }
419 break;
420 case WM_IME_CHAR:
421 {
422 WCHAR wch = LOWORD(wparam);
423 BYTE ch[2];
424
425 if (WideCharToMultiByte( CP_ACP, 0, &wch, 1, (LPSTR)ch, 2, NULL, NULL ) == 2)
426 wparam = MAKEWPARAM( (ch[0] << 8) | ch[1], HIWORD(wparam) );
427 else
428 wparam = MAKEWPARAM( ch[0], HIWORD(wparam) );
429 }
430 break;
431 }
432 return wparam;
433 }
434
435
436 /***********************************************************************
437 * pack_message
438 *
439 * Pack a message for sending to another process.
440 * Return the size of the data we expect in the message reply.
441 * Set data->count to -1 if there is an error.
442 */
443 static size_t pack_message( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
444 struct packed_message *data )
445 {
446 data->count = 0;
447 switch(message)
448 {
449 case WM_NCCREATE:
450 case WM_CREATE:
451 {
452 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
453 push_data( data, cs, sizeof(*cs) );
454 if (HIWORD(cs->lpszName)) push_string( data, cs->lpszName );
455 if (HIWORD(cs->lpszClass)) push_string( data, cs->lpszClass );
456 return sizeof(*cs);
457 }
458 case WM_GETTEXT:
459 case WM_ASKCBFORMATNAME:
460 return wparam * sizeof(WCHAR);
461 case WM_WININICHANGE:
462 if (lparam) push_string(data, (LPWSTR)lparam );
463 return 0;
464 case WM_SETTEXT:
465 case WM_DEVMODECHANGE:
466 case CB_DIR:
467 case LB_DIR:
468 case LB_ADDFILE:
469 case EM_REPLACESEL:
470 push_string( data, (LPWSTR)lparam );
471 return 0;
472 case WM_GETMINMAXINFO:
473 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
474 return sizeof(MINMAXINFO);
475 case WM_DRAWITEM:
476 push_data( data, (DRAWITEMSTRUCT *)lparam, sizeof(DRAWITEMSTRUCT) );
477 return 0;
478 case WM_MEASUREITEM:
479 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
480 return sizeof(MEASUREITEMSTRUCT);
481 case WM_DELETEITEM:
482 push_data( data, (DELETEITEMSTRUCT *)lparam, sizeof(DELETEITEMSTRUCT) );
483 return 0;
484 case WM_COMPAREITEM:
485 push_data( data, (COMPAREITEMSTRUCT *)lparam, sizeof(COMPAREITEMSTRUCT) );
486 return 0;
487 case WM_WINDOWPOSCHANGING:
488 case WM_WINDOWPOSCHANGED:
489 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
490 return sizeof(WINDOWPOS);
491 case WM_COPYDATA:
492 {
493 COPYDATASTRUCT *cp = (COPYDATASTRUCT *)lparam;
494 push_data( data, cp, sizeof(*cp) );
495 if (cp->lpData) push_data( data, cp->lpData, cp->cbData );
496 return 0;
497 }
498 case WM_NOTIFY:
499 /* WM_NOTIFY cannot be sent across processes (MSDN) */
500 data->count = -1;
501 return 0;
502 case WM_HELP:
503 push_data( data, (HELPINFO *)lparam, sizeof(HELPINFO) );
504 return 0;
505 case WM_STYLECHANGING:
506 case WM_STYLECHANGED:
507 push_data( data, (STYLESTRUCT *)lparam, sizeof(STYLESTRUCT) );
508 return 0;
509 case WM_NCCALCSIZE:
510 if (!wparam)
511 {
512 push_data( data, (RECT *)lparam, sizeof(RECT) );
513 return sizeof(RECT);
514 }
515 else
516 {
517 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
518 push_data( data, nc, sizeof(*nc) );
519 push_data( data, nc->lppos, sizeof(*nc->lppos) );
520 return sizeof(*nc) + sizeof(*nc->lppos);
521 }
522 case WM_GETDLGCODE:
523 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
524 return sizeof(MSG);
525 case SBM_SETSCROLLINFO:
526 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
527 return 0;
528 case SBM_GETSCROLLINFO:
529 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
530 return sizeof(SCROLLINFO);
531 case SBM_GETSCROLLBARINFO:
532 {
533 const SCROLLBARINFO *info = (const SCROLLBARINFO *)lparam;
534 size_t size = min( info->cbSize, sizeof(SCROLLBARINFO) );
535 push_data( data, info, size );
536 return size;
537 }
538 case EM_GETSEL:
539 case SBM_GETRANGE:
540 case CB_GETEDITSEL:
541 {
542 size_t size = 0;
543 if (wparam) size += sizeof(DWORD);
544 if (lparam) size += sizeof(DWORD);
545 return size;
546 }
547 case EM_GETRECT:
548 case LB_GETITEMRECT:
549 case CB_GETDROPPEDCONTROLRECT:
550 return sizeof(RECT);
551 case EM_SETRECT:
552 case EM_SETRECTNP:
553 push_data( data, (RECT *)lparam, sizeof(RECT) );
554 return 0;
555 case EM_GETLINE:
556 {
557 WORD *pw = (WORD *)lparam;
558 push_data( data, pw, sizeof(*pw) );
559 return *pw * sizeof(WCHAR);
560 }
561 case EM_SETTABSTOPS:
562 case LB_SETTABSTOPS:
563 if (wparam) push_data( data, (UINT *)lparam, sizeof(UINT) * wparam );
564 return 0;
565 case CB_ADDSTRING:
566 case CB_INSERTSTRING:
567 case CB_FINDSTRING:
568 case CB_FINDSTRINGEXACT:
569 case CB_SELECTSTRING:
570 if (combobox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
571 return 0;
572 case CB_GETLBTEXT:
573 if (!combobox_has_strings( hwnd )) return sizeof(ULONG_PTR);
574 return (SendMessageW( hwnd, CB_GETLBTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
575 case LB_ADDSTRING:
576 case LB_INSERTSTRING:
577 case LB_FINDSTRING:
578 case LB_FINDSTRINGEXACT:
579 case LB_SELECTSTRING:
580 if (listbox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
581 return 0;
582 case LB_GETTEXT:
583 if (!listbox_has_strings( hwnd )) return sizeof(ULONG_PTR);
584 return (SendMessageW( hwnd, LB_GETTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
585 case LB_GETSELITEMS:
586 return wparam * sizeof(UINT);
587 case WM_NEXTMENU:
588 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
589 return sizeof(MDINEXTMENU);
590 case WM_SIZING:
591 case WM_MOVING:
592 push_data( data, (RECT *)lparam, sizeof(RECT) );
593 return sizeof(RECT);
594 case WM_MDICREATE:
595 {
596 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
597 push_data( data, cs, sizeof(*cs) );
598 if (HIWORD(cs->szTitle)) push_string( data, cs->szTitle );
599 if (HIWORD(cs->szClass)) push_string( data, cs->szClass );
600 return sizeof(*cs);
601 }
602 case WM_MDIGETACTIVE:
603 if (lparam) return sizeof(BOOL);
604 return 0;
605 case WM_DEVICECHANGE:
606 {
607 DEV_BROADCAST_HDR *header = (DEV_BROADCAST_HDR *)lparam;
608 push_data( data, header, header->dbch_size );
609 return 0;
610 }
611 case WM_WINE_SETWINDOWPOS:
612 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
613 return 0;
614 case WM_WINE_KEYBOARD_LL_HOOK:
615 {
616 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
617 push_data( data, h_extra, sizeof(*h_extra) );
618 push_data( data, (LPVOID)h_extra->lparam, sizeof(KBDLLHOOKSTRUCT) );
619 return 0;
620 }
621 case WM_WINE_MOUSE_LL_HOOK:
622 {
623 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
624 push_data( data, h_extra, sizeof(*h_extra) );
625 push_data( data, (LPVOID)h_extra->lparam, sizeof(MSLLHOOKSTRUCT) );
626 return 0;
627 }
628 case WM_NCPAINT:
629 if (wparam <= 1) return 0;
630 FIXME( "WM_NCPAINT hdc packing not supported yet\n" );
631 data->count = -1;
632 return 0;
633 case WM_PAINT:
634 if (!wparam) return 0;
635 /* fall through */
636
637 /* these contain an HFONT */
638 case WM_SETFONT:
639 case WM_GETFONT:
640 /* these contain an HDC */
641 case WM_ERASEBKGND:
642 case WM_ICONERASEBKGND:
643 case WM_CTLCOLORMSGBOX:
644 case WM_CTLCOLOREDIT:
645 case WM_CTLCOLORLISTBOX:
646 case WM_CTLCOLORBTN:
647 case WM_CTLCOLORDLG:
648 case WM_CTLCOLORSCROLLBAR:
649 case WM_CTLCOLORSTATIC:
650 case WM_PRINT:
651 case WM_PRINTCLIENT:
652 /* these contain an HGLOBAL */
653 case WM_PAINTCLIPBOARD:
654 case WM_SIZECLIPBOARD:
655 /* these contain HICON */
656 case WM_GETICON:
657 case WM_SETICON:
658 case WM_QUERYDRAGICON:
659 case WM_QUERYPARKICON:
660 /* these contain pointers */
661 case WM_DROPOBJECT:
662 case WM_QUERYDROPOBJECT:
663 case WM_DRAGLOOP:
664 case WM_DRAGSELECT:
665 case WM_DRAGMOVE:
666 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
667 data->count = -1;
668 return 0;
669 }
670 return 0;
671 }
672
673
674 /***********************************************************************
675 * unpack_message
676 *
677 * Unpack a message received from another process.
678 */
679 static BOOL unpack_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
680 void **buffer, size_t size )
681 {
682 size_t minsize = 0;
683
684 switch(message)
685 {
686 case WM_NCCREATE:
687 case WM_CREATE:
688 {
689 CREATESTRUCTW *cs = *buffer;
690 WCHAR *str = (WCHAR *)(cs + 1);
691 if (size < sizeof(*cs)) return FALSE;
692 size -= sizeof(*cs);
693 if (HIWORD(cs->lpszName))
694 {
695 if (!check_string( str, size )) return FALSE;
696 cs->lpszName = str;
697 size -= (strlenW(str) + 1) * sizeof(WCHAR);
698 str += strlenW(str) + 1;
699 }
700 if (HIWORD(cs->lpszClass))
701 {
702 if (!check_string( str, size )) return FALSE;
703 cs->lpszClass = str;
704 }
705 break;
706 }
707 case WM_GETTEXT:
708 case WM_ASKCBFORMATNAME:
709 if (!get_buffer_space( buffer, (*wparam * sizeof(WCHAR)) )) return FALSE;
710 break;
711 case WM_WININICHANGE:
712 if (!*lparam) return TRUE;
713 /* fall through */
714 case WM_SETTEXT:
715 case WM_DEVMODECHANGE:
716 case CB_DIR:
717 case LB_DIR:
718 case LB_ADDFILE:
719 case EM_REPLACESEL:
720 if (!check_string( *buffer, size )) return FALSE;
721 break;
722 case WM_GETMINMAXINFO:
723 minsize = sizeof(MINMAXINFO);
724 break;
725 case WM_DRAWITEM:
726 minsize = sizeof(DRAWITEMSTRUCT);
727 break;
728 case WM_MEASUREITEM:
729 minsize = sizeof(MEASUREITEMSTRUCT);
730 break;
731 case WM_DELETEITEM:
732 minsize = sizeof(DELETEITEMSTRUCT);
733 break;
734 case WM_COMPAREITEM:
735 minsize = sizeof(COMPAREITEMSTRUCT);
736 break;
737 case WM_WINDOWPOSCHANGING:
738 case WM_WINDOWPOSCHANGED:
739 case WM_WINE_SETWINDOWPOS:
740 minsize = sizeof(WINDOWPOS);
741 break;
742 case WM_COPYDATA:
743 {
744 COPYDATASTRUCT *cp = *buffer;
745 if (size < sizeof(*cp)) return FALSE;
746 if (cp->lpData)
747 {
748 minsize = sizeof(*cp) + cp->cbData;
749 cp->lpData = cp + 1;
750 }
751 break;
752 }
753 case WM_NOTIFY:
754 /* WM_NOTIFY cannot be sent across processes (MSDN) */
755 return FALSE;
756 case WM_HELP:
757 minsize = sizeof(HELPINFO);
758 break;
759 case WM_STYLECHANGING:
760 case WM_STYLECHANGED:
761 minsize = sizeof(STYLESTRUCT);
762 break;
763 case WM_NCCALCSIZE:
764 if (!*wparam) minsize = sizeof(RECT);
765 else
766 {
767 NCCALCSIZE_PARAMS *nc = *buffer;
768 if (size < sizeof(*nc) + sizeof(*nc->lppos)) return FALSE;
769 nc->lppos = (WINDOWPOS *)(nc + 1);
770 }
771 break;
772 case WM_GETDLGCODE:
773 if (!*lparam) return TRUE;
774 minsize = sizeof(MSG);
775 break;
776 case SBM_SETSCROLLINFO:
777 minsize = sizeof(SCROLLINFO);
778 break;
779 case SBM_GETSCROLLINFO:
780 if (!get_buffer_space( buffer, sizeof(SCROLLINFO ))) return FALSE;
781 break;
782 case SBM_GETSCROLLBARINFO:
783 if (!get_buffer_space( buffer, sizeof(SCROLLBARINFO ))) return FALSE;
784 break;
785 case EM_GETSEL:
786 case SBM_GETRANGE:
787 case CB_GETEDITSEL:
788 if (*wparam || *lparam)
789 {
790 if (!get_buffer_space( buffer, 2*sizeof(DWORD) )) return FALSE;
791 if (*wparam) *wparam = (WPARAM)*buffer;
792 if (*lparam) *lparam = (LPARAM)((DWORD *)*buffer + 1);
793 }
794 return TRUE;
795 case EM_GETRECT:
796 case LB_GETITEMRECT:
797 case CB_GETDROPPEDCONTROLRECT:
798 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
799 break;
800 case EM_SETRECT:
801 case EM_SETRECTNP:
802 minsize = sizeof(RECT);
803 break;
804 case EM_GETLINE:
805 {
806 WORD len;
807 if (size < sizeof(WORD)) return FALSE;
808 len = *(WORD *)*buffer;
809 if (!get_buffer_space( buffer, (len + 1) * sizeof(WCHAR) )) return FALSE;
810 *lparam = (LPARAM)*buffer + sizeof(WORD); /* don't erase WORD at start of buffer */
811 return TRUE;
812 }
813 case EM_SETTABSTOPS:
814 case LB_SETTABSTOPS:
815 if (!*wparam) return TRUE;
816 minsize = *wparam * sizeof(UINT);
817 break;
818 case CB_ADDSTRING:
819 case CB_INSERTSTRING:
820 case CB_FINDSTRING:
821 case CB_FINDSTRINGEXACT:
822 case CB_SELECTSTRING:
823 case LB_ADDSTRING:
824 case LB_INSERTSTRING:
825 case LB_FINDSTRING:
826 case LB_FINDSTRINGEXACT:
827 case LB_SELECTSTRING:
828 if (!*buffer) return TRUE;
829 if (!check_string( *buffer, size )) return FALSE;
830 break;
831 case CB_GETLBTEXT:
832 {
833 size = sizeof(ULONG_PTR);
834 if (combobox_has_strings( hwnd ))
835 size = (SendMessageW( hwnd, CB_GETLBTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
836 if (!get_buffer_space( buffer, size )) return FALSE;
837 break;
838 }
839 case LB_GETTEXT:
840 {
841 size = sizeof(ULONG_PTR);
842 if (listbox_has_strings( hwnd ))
843 size = (SendMessageW( hwnd, LB_GETTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
844 if (!get_buffer_space( buffer, size )) return FALSE;
845 break;
846 }
847 case LB_GETSELITEMS:
848 if (!get_buffer_space( buffer, *wparam * sizeof(UINT) )) return FALSE;
849 break;
850 case WM_NEXTMENU:
851 minsize = sizeof(MDINEXTMENU);
852 if (!get_buffer_space( buffer, sizeof(MDINEXTMENU) )) return FALSE;
853 break;
854 case WM_SIZING:
855 case WM_MOVING:
856 minsize = sizeof(RECT);
857 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
858 break;
859 case WM_MDICREATE:
860 {
861 MDICREATESTRUCTW *cs = *buffer;
862 WCHAR *str = (WCHAR *)(cs + 1);
863 if (size < sizeof(*cs)) return FALSE;
864 size -= sizeof(*cs);
865 if (HIWORD(cs->szTitle))
866 {
867 if (!check_string( str, size )) return FALSE;
868 cs->szTitle = str;
869 size -= (strlenW(str) + 1) * sizeof(WCHAR);
870 str += strlenW(str) + 1;
871 }
872 if (HIWORD(cs->szClass))
873 {
874 if (!check_string( str, size )) return FALSE;
875 cs->szClass = str;
876 }
877 break;
878 }
879 case WM_MDIGETACTIVE:
880 if (!*lparam) return TRUE;
881 if (!get_buffer_space( buffer, sizeof(BOOL) )) return FALSE;
882 break;
883 case WM_DEVICECHANGE:
884 minsize = sizeof(DEV_BROADCAST_HDR);
885 break;
886 case WM_WINE_KEYBOARD_LL_HOOK:
887 case WM_WINE_MOUSE_LL_HOOK:
888 {
889 struct hook_extra_info *h_extra = (struct hook_extra_info *)*buffer;
890
891 minsize = sizeof(struct hook_extra_info) +
892 (message == WM_WINE_KEYBOARD_LL_HOOK ? sizeof(KBDLLHOOKSTRUCT)
893 : sizeof(MSLLHOOKSTRUCT));
894 if (size < minsize) return FALSE;
895 h_extra->lparam = (LPARAM)(h_extra + 1);
896 break;
897 }
898 case WM_NCPAINT:
899 if (*wparam <= 1) return TRUE;
900 FIXME( "WM_NCPAINT hdc unpacking not supported\n" );
901 return FALSE;
902 case WM_PAINT:
903 if (!*wparam) return TRUE;
904 /* fall through */
905
906 /* these contain an HFONT */
907 case WM_SETFONT:
908 case WM_GETFONT:
909 /* these contain an HDC */
910 case WM_ERASEBKGND:
911 case WM_ICONERASEBKGND:
912 case WM_CTLCOLORMSGBOX:
913 case WM_CTLCOLOREDIT:
914 case WM_CTLCOLORLISTBOX:
915 case WM_CTLCOLORBTN:
916 case WM_CTLCOLORDLG:
917 case WM_CTLCOLORSCROLLBAR:
918 case WM_CTLCOLORSTATIC:
919 case WM_PRINT:
920 case WM_PRINTCLIENT:
921 /* these contain an HGLOBAL */
922 case WM_PAINTCLIPBOARD:
923 case WM_SIZECLIPBOARD:
924 /* these contain HICON */
925 case WM_GETICON:
926 case WM_SETICON:
927 case WM_QUERYDRAGICON:
928 case WM_QUERYPARKICON:
929 /* these contain pointers */
930 case WM_DROPOBJECT:
931 case WM_QUERYDROPOBJECT:
932 case WM_DRAGLOOP:
933 case WM_DRAGSELECT:
934 case WM_DRAGMOVE:
935 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
936 return FALSE;
937
938 default:
939 return TRUE; /* message doesn't need any unpacking */
940 }
941
942 /* default exit for most messages: check minsize and store buffer in lparam */
943 if (size < minsize) return FALSE;
944 *lparam = (LPARAM)*buffer;
945 return TRUE;
946 }
947
948
949 /***********************************************************************
950 * pack_reply
951 *
952 * Pack a reply to a message for sending to another process.
953 */
954 static void pack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
955 LRESULT res, struct packed_message *data )
956 {
957 data->count = 0;
958 switch(message)
959 {
960 case WM_NCCREATE:
961 case WM_CREATE:
962 push_data( data, (CREATESTRUCTW *)lparam, sizeof(CREATESTRUCTW) );
963 break;
964 case WM_GETTEXT:
965 case CB_GETLBTEXT:
966 case LB_GETTEXT:
967 push_data( data, (WCHAR *)lparam, (res + 1) * sizeof(WCHAR) );
968 break;
969 case WM_GETMINMAXINFO:
970 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
971 break;
972 case WM_MEASUREITEM:
973 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
974 break;
975 case WM_WINDOWPOSCHANGING:
976 case WM_WINDOWPOSCHANGED:
977 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
978 break;
979 case WM_GETDLGCODE:
980 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
981 break;
982 case SBM_GETSCROLLINFO:
983 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
984 break;
985 case EM_GETRECT:
986 case LB_GETITEMRECT:
987 case CB_GETDROPPEDCONTROLRECT:
988 case WM_SIZING:
989 case WM_MOVING:
990 push_data( data, (RECT *)lparam, sizeof(RECT) );
991 break;
992 case EM_GETLINE:
993 {
994 WORD *ptr = (WORD *)lparam;
995 push_data( data, ptr, ptr[-1] * sizeof(WCHAR) );
996 break;
997 }
998 case LB_GETSELITEMS:
999 push_data( data, (UINT *)lparam, wparam * sizeof(UINT) );
1000 break;
1001 case WM_MDIGETACTIVE:
1002 if (lparam) push_data( data, (BOOL *)lparam, sizeof(BOOL) );
1003 break;
1004 case WM_NCCALCSIZE:
1005 if (!wparam)
1006 push_data( data, (RECT *)lparam, sizeof(RECT) );
1007 else
1008 {
1009 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1010 push_data( data, nc, sizeof(*nc) );
1011 push_data( data, nc->lppos, sizeof(*nc->lppos) );
1012 }
1013 break;
1014 case EM_GETSEL:
1015 case SBM_GETRANGE:
1016 case CB_GETEDITSEL:
1017 if (wparam) push_data( data, (DWORD *)wparam, sizeof(DWORD) );
1018 if (lparam) push_data( data, (DWORD *)lparam, sizeof(DWORD) );
1019 break;
1020 case WM_NEXTMENU:
1021 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
1022 break;
1023 case WM_MDICREATE:
1024 push_data( data, (MDICREATESTRUCTW *)lparam, sizeof(MDICREATESTRUCTW) );
1025 break;
1026 case WM_ASKCBFORMATNAME:
1027 push_data( data, (WCHAR *)lparam, (strlenW((WCHAR *)lparam) + 1) * sizeof(WCHAR) );
1028 break;
1029 }
1030 }
1031
1032
1033 /***********************************************************************
1034 * unpack_reply
1035 *
1036 * Unpack a message reply received from another process.
1037 */
1038 static void unpack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1039 void *buffer, size_t size )
1040 {
1041 switch(message)
1042 {
1043 case WM_NCCREATE:
1044 case WM_CREATE:
1045 {
1046 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
1047 LPCWSTR name = cs->lpszName, class = cs->lpszClass;
1048 memcpy( cs, buffer, min( sizeof(*cs), size ));
1049 cs->lpszName = name; /* restore the original pointers */
1050 cs->lpszClass = class;
1051 break;
1052 }
1053 case WM_GETTEXT:
1054 case WM_ASKCBFORMATNAME:
1055 memcpy( (WCHAR *)lparam, buffer, min( wparam*sizeof(WCHAR), size ));
1056 break;
1057 case WM_GETMINMAXINFO:
1058 memcpy( (MINMAXINFO *)lparam, buffer, min( sizeof(MINMAXINFO), size ));
1059 break;
1060 case WM_MEASUREITEM:
1061 memcpy( (MEASUREITEMSTRUCT *)lparam, buffer, min( sizeof(MEASUREITEMSTRUCT), size ));
1062 break;
1063 case WM_WINDOWPOSCHANGING:
1064 case WM_WINDOWPOSCHANGED:
1065 memcpy( (WINDOWPOS *)lparam, buffer, min( sizeof(WINDOWPOS), size ));
1066 break;
1067 case WM_GETDLGCODE:
1068 if (lparam) memcpy( (MSG *)lparam, buffer, min( sizeof(MSG), size ));
1069 break;
1070 case SBM_GETSCROLLINFO:
1071 memcpy( (SCROLLINFO *)lparam, buffer, min( sizeof(SCROLLINFO), size ));
1072 break;
1073 case SBM_GETSCROLLBARINFO:
1074 memcpy( (SCROLLBARINFO *)lparam, buffer, min( sizeof(SCROLLBARINFO), size ));
1075 break;
1076 case EM_GETRECT:
1077 case CB_GETDROPPEDCONTROLRECT:
1078 case LB_GETITEMRECT:
1079 case WM_SIZING:
1080 case WM_MOVING:
1081 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1082 break;
1083 case EM_GETLINE:
1084 size = min( size, (size_t)*(WORD *)lparam );
1085 memcpy( (WCHAR *)lparam, buffer, size );
1086 break;
1087 case LB_GETSELITEMS:
1088 memcpy( (UINT *)lparam, buffer, min( wparam*sizeof(UINT), size ));
1089 break;
1090 case LB_GETTEXT:
1091 case CB_GETLBTEXT:
1092 memcpy( (WCHAR *)lparam, buffer, size );
1093 break;
1094 case WM_NEXTMENU:
1095 memcpy( (MDINEXTMENU *)lparam, buffer, min( sizeof(MDINEXTMENU), size ));
1096 break;
1097 case WM_MDIGETACTIVE:
1098 if (lparam) memcpy( (BOOL *)lparam, buffer, min( sizeof(BOOL), size ));
1099 break;
1100 case WM_NCCALCSIZE:
1101 if (!wparam)
1102 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1103 else
1104 {
1105 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1106 WINDOWPOS *wp = nc->lppos;
1107 memcpy( nc, buffer, min( sizeof(*nc), size ));
1108 if (size > sizeof(*nc))
1109 {
1110 size -= sizeof(*nc);
1111 memcpy( wp, (NCCALCSIZE_PARAMS*)buffer + 1, min( sizeof(*wp), size ));
1112 }
1113 nc->lppos = wp; /* restore the original pointer */
1114 }
1115 break;
1116 case EM_GETSEL:
1117 case SBM_GETRANGE:
1118 case CB_GETEDITSEL:
1119 if (wparam)
1120 {
1121 memcpy( (DWORD *)wparam, buffer, min( sizeof(DWORD), size ));
1122 if (size <= sizeof(DWORD)) break;
1123 size -= sizeof(DWORD);
1124 buffer = (DWORD *)buffer + 1;
1125 }
1126 if (lparam) memcpy( (DWORD *)lparam, buffer, min( sizeof(DWORD), size ));
1127 break;
1128 case WM_MDICREATE:
1129 {
1130 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
1131 LPCWSTR title = cs->szTitle, class = cs->szClass;
1132 memcpy( cs, buffer, min( sizeof(*cs), size ));
1133 cs->szTitle = title; /* restore the original pointers */
1134 cs->szClass = class;
1135 break;
1136 }
1137 default:
1138 ERR( "should not happen: unexpected message %x\n", message );
1139 break;
1140 }
1141 }
1142
1143
1144 /***********************************************************************
1145 * reply_message
1146 *
1147 * Send a reply to a sent message.
1148 */
1149 static void reply_message( struct received_message_info *info, LRESULT result, BOOL remove )
1150 {
1151 struct packed_message data;
1152 int i, replied = info->flags & ISMEX_REPLIED;
1153
1154 if (info->flags & ISMEX_NOTIFY) return; /* notify messages don't get replies */
1155 if (!remove && replied) return; /* replied already */
1156
1157 data.count = 0;
1158 info->flags |= ISMEX_REPLIED;
1159
1160 if (info->type == MSG_OTHER_PROCESS && !replied)
1161 {
1162 pack_reply( info->msg.hwnd, info->msg.message, info->msg.wParam,
1163 info->msg.lParam, result, &data );
1164 }
1165
1166 SERVER_START_REQ( reply_message )
1167 {
1168 req->result = result;
1169 req->remove = remove;
1170 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
1171 wine_server_call( req );
1172 }
1173 SERVER_END_REQ;
1174 }
1175
1176
1177 /***********************************************************************
1178 * handle_internal_message
1179 *
1180 * Handle an internal Wine message instead of calling the window proc.
1181 */
1182 static LRESULT handle_internal_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
1183 {
1184 switch(msg)
1185 {
1186 case WM_WINE_DESTROYWINDOW:
1187 return WIN_DestroyWindow( hwnd );
1188 case WM_WINE_SETWINDOWPOS:
1189 if (hwnd == GetDesktopWindow()) return 0;
1190 return USER_Driver->pSetWindowPos( (WINDOWPOS *)lparam );
1191 case WM_WINE_SHOWWINDOW:
1192 if (hwnd == GetDesktopWindow()) return 0;
1193 return ShowWindow( hwnd, wparam );
1194 case WM_WINE_SETPARENT:
1195 if (hwnd == GetDesktopWindow()) return 0;
1196 return (LRESULT)SetParent( hwnd, (HWND)wparam );
1197 case WM_WINE_SETWINDOWLONG:
1198 return WIN_SetWindowLong( hwnd, (short)LOWORD(wparam), HIWORD(wparam), lparam, TRUE );
1199 case WM_WINE_ENABLEWINDOW:
1200 if (hwnd == GetDesktopWindow()) return 0;
1201 return EnableWindow( hwnd, wparam );
1202 case WM_WINE_SETACTIVEWINDOW:
1203 if (hwnd == GetDesktopWindow()) return 0;
1204 return (LRESULT)SetActiveWindow( (HWND)wparam );
1205 case WM_WINE_KEYBOARD_LL_HOOK:
1206 case WM_WINE_MOUSE_LL_HOOK:
1207 {
1208 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
1209
1210 return call_current_hook( h_extra->handle, HC_ACTION, wparam, h_extra->lparam );
1211 }
1212 default:
1213 if (msg >= WM_WINE_FIRST_DRIVER_MSG && msg <= WM_WINE_LAST_DRIVER_MSG)
1214 return USER_Driver->pWindowMessage( hwnd, msg, wparam, lparam );
1215 FIXME( "unknown internal message %x\n", msg );
1216 return 0;
1217 }
1218 }
1219
1220 /* since the WM_DDE_ACK response to a WM_DDE_EXECUTE message should contain the handle
1221 * to the memory handle, we keep track (in the server side) of all pairs of handle
1222 * used (the client passes its value and the content of the memory handle), and
1223 * the server stored both values (the client, and the local one, created after the
1224 * content). When a ACK message is generated, the list of pair is searched for a
1225 * matching pair, so that the client memory handle can be returned.
1226 */
1227 struct DDE_pair {
1228 HGLOBAL client_hMem;
1229 HGLOBAL server_hMem;
1230 };
1231
1232 static struct DDE_pair* dde_pairs;
1233 static int dde_num_alloc;
1234 static int dde_num_used;
1235
1236 static CRITICAL_SECTION dde_crst;
1237 static CRITICAL_SECTION_DEBUG critsect_debug =
1238 {
1239 0, 0, &dde_crst,
1240 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
1241 0, 0, { (DWORD_PTR)(__FILE__ ": dde_crst") }
1242 };
1243 static CRITICAL_SECTION dde_crst = { &critsect_debug, -1, 0, 0, 0, 0 };
1244
1245 static BOOL dde_add_pair(HGLOBAL chm, HGLOBAL shm)
1246 {
1247 int i;
1248 #define GROWBY 4
1249
1250 EnterCriticalSection(&dde_crst);
1251
1252 /* now remember the pair of hMem on both sides */
1253 if (dde_num_used == dde_num_alloc)
1254 {
1255 struct DDE_pair* tmp;
1256 if (dde_pairs)
1257 tmp = HeapReAlloc( GetProcessHeap(), 0, dde_pairs,
1258 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1259 else
1260 tmp = HeapAlloc( GetProcessHeap(), 0,
1261 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1262
1263 if (!tmp)
1264 {
1265 LeaveCriticalSection(&dde_crst);
1266 return FALSE;
1267 }
1268 dde_pairs = tmp;
1269 /* zero out newly allocated part */
1270 memset(&dde_pairs[dde_num_alloc], 0, GROWBY * sizeof(struct DDE_pair));
1271 dde_num_alloc += GROWBY;
1272 }
1273 #undef GROWBY
1274 for (i = 0; i < dde_num_alloc; i++)
1275 {
1276 if (dde_pairs[i].server_hMem == 0)
1277 {
1278 dde_pairs[i].client_hMem = chm;
1279 dde_pairs[i].server_hMem = shm;
1280 dde_num_used++;
1281 break;
1282 }
1283 }
1284 LeaveCriticalSection(&dde_crst);
1285 return TRUE;
1286 }
1287
1288 static HGLOBAL dde_get_pair(HGLOBAL shm)
1289 {
1290 int i;
1291 HGLOBAL ret = 0;
1292
1293 EnterCriticalSection(&dde_crst);
1294 for (i = 0; i < dde_num_alloc; i++)
1295 {
1296 if (dde_pairs[i].server_hMem == shm)
1297 {
1298 /* free this pair */
1299 dde_pairs[i].server_hMem = 0;
1300 dde_num_used--;
1301 ret = dde_pairs[i].client_hMem;
1302 break;
1303 }
1304 }
1305 LeaveCriticalSection(&dde_crst);
1306 return ret;
1307 }
1308
1309 /***********************************************************************
1310 * post_dde_message
1311 *
1312 * Post a DDE message
1313 */
1314 static BOOL post_dde_message( struct packed_message *data, const struct send_message_info *info )
1315 {
1316 void* ptr = NULL;
1317 int size = 0;
1318 UINT_PTR uiLo, uiHi;
1319 LPARAM lp = 0;
1320 HGLOBAL hunlock = 0;
1321 int i;
1322 DWORD res;
1323
1324 if (!UnpackDDElParam( info->msg, info->lparam, &uiLo, &uiHi ))
1325 return FALSE;
1326
1327 lp = info->lparam;
1328 switch (info->msg)
1329 {
1330 /* DDE messages which don't require packing are:
1331 * WM_DDE_INITIATE
1332 * WM_DDE_TERMINATE
1333 * WM_DDE_REQUEST
1334 * WM_DDE_UNADVISE
1335 */
1336 case WM_DDE_ACK:
1337 if (HIWORD(uiHi))
1338 {
1339 /* uiHi should contain a hMem from WM_DDE_EXECUTE */
1340 HGLOBAL h = dde_get_pair( (HANDLE)uiHi );
1341 if (h)
1342 {
1343 /* send back the value of h on the other side */
1344 push_data( data, &h, sizeof(HGLOBAL) );
1345 lp = uiLo;
1346 TRACE( "send dde-ack %x %08x => %p\n", uiLo, uiHi, h );
1347 }
1348 }
1349 else
1350 {
1351 /* uiHi should contain either an atom or 0 */
1352 TRACE( "send dde-ack %x atom=%x\n", uiLo, uiHi );
1353 lp = MAKELONG( uiLo, uiHi );
1354 }
1355 break;
1356 case WM_DDE_ADVISE:
1357 case WM_DDE_DATA:
1358 case WM_DDE_POKE:
1359 size = 0;
1360 if (uiLo)
1361 {
1362 size = GlobalSize( (HGLOBAL)uiLo ) ;
1363 if ((info->msg == WM_DDE_ADVISE && size < sizeof(DDEADVISE)) ||
1364 (info->msg == WM_DDE_DATA && size < sizeof(DDEDATA)) ||
1365 (info->msg == WM_DDE_POKE && size < sizeof(DDEPOKE))
1366 )
1367 return FALSE;
1368 }
1369 else if (info->msg != WM_DDE_DATA) return FALSE;
1370
1371 lp = uiHi;
1372 if (uiLo)
1373 {
1374 if ((ptr = GlobalLock( (HGLOBAL)uiLo) ))
1375 {
1376 DDEDATA *dde_data = (DDEDATA *)ptr;
1377 TRACE("unused %d, fResponse %d, fRelease %d, fDeferUpd %d, fAckReq %d, cfFormat %d\n",
1378 dde_data->unused, dde_data->fResponse, dde_data->fRelease,
1379 dde_data->reserved, dde_data->fAckReq, dde_data->cfFormat);
1380 push_data( data, ptr, size );
1381 hunlock = (HGLOBAL)uiLo;
1382 }
1383 }
1384 TRACE( "send ddepack %u %x\n", size, uiHi );
1385 break;
1386 case WM_DDE_EXECUTE:
1387 if (info->lparam)
1388 {
1389 if ((ptr = GlobalLock( (HGLOBAL)info->lparam) ))
1390 {
1391 push_data(data, ptr, GlobalSize( (HGLOBAL)info->lparam ));
1392 /* so that the other side can send it back on ACK */
1393 lp = info->lparam;
1394 hunlock = (HGLOBAL)info->lparam;
1395 }
1396 }
1397 break;
1398 }
1399 SERVER_START_REQ( send_message )
1400 {
1401 req->id = info->dest_tid;
1402 req->type = info->type;
1403 req->flags = 0;
1404 req->win = info->hwnd;
1405 req->msg = info->msg;
1406 req->wparam = info->wparam;
1407 req->lparam = lp;
1408 req->timeout = 0;
1409 for (i = 0; i < data->count; i++)
1410 wine_server_add_data( req, data->data[i], data->size[i] );
1411 if ((res = wine_server_call( req )))
1412 {
1413 if (res == STATUS_INVALID_PARAMETER)
1414 /* FIXME: find a STATUS_ value for this one */
1415 SetLastError( ERROR_INVALID_THREAD_ID );
1416 else
1417 SetLastError( RtlNtStatusToDosError(res) );
1418 }
1419 else
1420 FreeDDElParam(info->msg, info->lparam);
1421 }
1422 SERVER_END_REQ;
1423 if (hunlock) GlobalUnlock(hunlock);
1424
1425 return !res;
1426 }
1427
1428 /***********************************************************************
1429 * unpack_dde_message
1430 *
1431 * Unpack a posted DDE message received from another process.
1432 */
1433 static BOOL unpack_dde_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
1434 void **buffer, size_t size )
1435 {
1436 UINT_PTR uiLo, uiHi;
1437 HGLOBAL hMem = 0;
1438 void* ptr;
1439
1440 switch (message)
1441 {
1442 case WM_DDE_ACK:
1443 if (size)
1444 {
1445 /* hMem is being passed */
1446 if (size != sizeof(HGLOBAL)) return FALSE;
1447 if (!buffer || !*buffer) return FALSE;
1448 uiLo = *lparam;
1449 memcpy( &hMem, *buffer, size );
1450 uiHi = (UINT_PTR)hMem;
1451 TRACE("recv dde-ack %x mem=%x[%lx]\n", uiLo, uiHi, GlobalSize( hMem ));
1452 }
1453 else
1454 {
1455 uiLo = LOWORD( *lparam );
1456 uiHi = HIWORD( *lparam );
1457 TRACE("recv dde-ack %x atom=%x\n", uiLo, uiHi);
1458 }
1459 *lparam = PackDDElParam( WM_DDE_ACK, uiLo, uiHi );
1460 break;
1461 case WM_DDE_ADVISE:
1462 case WM_DDE_DATA:
1463 case WM_DDE_POKE:
1464 if ((!buffer || !*buffer) && message != WM_DDE_DATA) return FALSE;
1465 uiHi = *lparam;
1466 if (size)
1467 {
1468 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size )))
1469 return FALSE;
1470 if ((ptr = GlobalLock( hMem )))
1471 {
1472 memcpy( ptr, *buffer, size );
1473 GlobalUnlock( hMem );
1474 }
1475 else
1476 {
1477 GlobalFree( hMem );
1478 return FALSE;
1479 }
1480 }
1481 uiLo = (UINT_PTR)hMem;
1482
1483 *lparam = PackDDElParam( message, uiLo, uiHi );
1484 break;
1485 case WM_DDE_EXECUTE:
1486 if (size)
1487 {
1488 if (!buffer || !*buffer) return FALSE;
1489 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size ))) return FALSE;
1490 if ((ptr = GlobalLock( hMem )))
1491 {
1492 memcpy( ptr, *buffer, size );
1493 GlobalUnlock( hMem );
1494 TRACE( "exec: pairing c=%08lx s=%08x\n", *lparam, (DWORD)hMem );
1495 if (!dde_add_pair( (HGLOBAL)*lparam, hMem ))
1496 {
1497 GlobalFree( hMem );
1498 return FALSE;
1499 }
1500 }
1501 else
1502 {
1503 GlobalFree( hMem );
1504 return FALSE;
1505 }
1506 } else return FALSE;
1507 *lparam = (LPARAM)hMem;
1508 break;
1509 }
1510 return TRUE;
1511 }
1512
1513 /***********************************************************************
1514 * call_window_proc
1515 *
1516 * Call a window procedure and the corresponding hooks.
1517 */
1518 static LRESULT call_window_proc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
1519 BOOL unicode, BOOL same_thread )
1520 {
1521 struct user_thread_info *thread_info = get_user_thread_info();
1522 LRESULT result = 0;
1523 WNDPROC winproc;
1524 CWPSTRUCT cwp;
1525 CWPRETSTRUCT cwpret;
1526
1527 if (thread_info->recursion_count > MAX_SENDMSG_RECURSION) return 0;
1528 thread_info->recursion_count++;
1529
1530 if (msg & 0x80000000)
1531 {
1532 result = handle_internal_message( hwnd, msg, wparam, lparam );
1533 goto done;
1534 }
1535
1536 /* first the WH_CALLWNDPROC hook */
1537 hwnd = WIN_GetFullHandle( hwnd );
1538 cwp.lParam = lparam;
1539 cwp.wParam = wparam;
1540 cwp.message = msg;
1541 cwp.hwnd = hwnd;
1542 HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, same_thread, (LPARAM)&cwp, unicode );
1543
1544 /* now call the window procedure */
1545 if (unicode)
1546 {
1547 if (!(winproc = (WNDPROC)GetWindowLongPtrW( hwnd, GWLP_WNDPROC ))) goto done;
1548 result = CallWindowProcW( winproc, hwnd, msg, wparam, lparam );
1549 }
1550 else
1551 {
1552 if (!(winproc = (WNDPROC)GetWindowLongPtrA( hwnd, GWLP_WNDPROC ))) goto done;
1553 result = CallWindowProcA( winproc, hwnd, msg, wparam, lparam );
1554 }
1555
1556 /* and finally the WH_CALLWNDPROCRET hook */
1557 cwpret.lResult = result;
1558 cwpret.lParam = lparam;
1559 cwpret.wParam = wparam;
1560 cwpret.message = msg;
1561 cwpret.hwnd = hwnd;
1562 HOOK_CallHooks( WH_CALLWNDPROCRET, HC_ACTION, same_thread, (LPARAM)&cwpret, unicode );
1563 done:
1564 thread_info->recursion_count--;
1565 return result;
1566 }
1567
1568
1569 /***********************************************************************
1570 * send_parent_notify
1571 *
1572 * Send a WM_PARENTNOTIFY to all ancestors of the given window, unless
1573 * the window has the WS_EX_NOPARENTNOTIFY style.
1574 */
1575 static void send_parent_notify( HWND hwnd, WORD event, WORD idChild, POINT pt )
1576 {
1577 /* pt has to be in the client coordinates of the parent window */
1578 MapWindowPoints( 0, hwnd, &pt, 1 );
1579 for (;;)
1580 {
1581 HWND parent;
1582
1583 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) break;
1584 if (GetWindowLongW( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) break;
1585 if (!(parent = GetParent(hwnd))) break;
1586 if (parent == GetDesktopWindow()) break;
1587 MapWindowPoints( hwnd, parent, &pt, 1 );
1588 hwnd = parent;
1589 SendMessageW( hwnd, WM_PARENTNOTIFY,
1590 MAKEWPARAM( event, idChild ), MAKELPARAM( pt.x, pt.y ) );
1591 }
1592 }
1593
1594
1595 /***********************************************************************
1596 * accept_hardware_message
1597 *
1598 * Tell the server we have passed the message to the app
1599 * (even though we may end up dropping it later on)
1600 */
1601 static void accept_hardware_message( UINT hw_id, BOOL remove, HWND new_hwnd )
1602 {
1603 SERVER_START_REQ( accept_hardware_message )
1604 {
1605 req->hw_id = hw_id;
1606 req->remove = remove;
1607 req->new_win = new_hwnd;
1608 if (wine_server_call( req ))
1609 FIXME("Failed to reply to MSG_HARDWARE message. Message may not be removed from queue.\n");
1610 }
1611 SERVER_END_REQ;
1612 }
1613
1614
1615 /***********************************************************************
1616 * process_keyboard_message
1617 *
1618 * returns TRUE if the contents of 'msg' should be passed to the application
1619 */
1620 static BOOL process_keyboard_message( MSG *msg, UINT hw_id, HWND hwnd_filter,
1621 UINT first, UINT last, BOOL remove )
1622 {
1623 EVENTMSG event;
1624
1625 /* FIXME: is this really the right place for this hook? */
1626 event.message = msg->message;
1627 event.hwnd = msg->hwnd;
1628 event.time = msg->time;
1629 event.paramL = (msg->wParam & 0xFF) | (HIWORD(msg->lParam) << 8);
1630 event.paramH = msg->lParam & 0x7FFF;
1631 if (HIWORD(msg->lParam) & 0x0100) event.paramH |= 0x8000; /* special_key - bit */
1632 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1633
1634 /* check message filters */
1635 if (msg->message < first || msg->message > last) return FALSE;
1636 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1637
1638 if (remove)
1639 {
1640 /* Handle F1 key by sending out WM_HELP message */
1641 if ((msg->message == WM_KEYUP) &&
1642 (msg->wParam == VK_F1) &&
1643 (msg->hwnd != GetDesktopWindow()) &&
1644 !MENU_IsMenuActive())
1645 {
1646 HELPINFO hi;
1647 hi.cbSize = sizeof(HELPINFO);
1648 hi.iContextType = HELPINFO_WINDOW;
1649 hi.iCtrlId = GetWindowLongPtrA( msg->hwnd, GWLP_ID );
1650 hi.hItemHandle = msg->hwnd;
1651 hi.dwContextId = GetWindowContextHelpId( msg->hwnd );
1652 hi.MousePos = msg->pt;
1653 SendMessageW( msg->hwnd, WM_HELP, 0, (LPARAM)&hi );
1654 }
1655 }
1656
1657 if (HOOK_CallHooks( WH_KEYBOARD, remove ? HC_ACTION : HC_NOREMOVE,
1658 LOWORD(msg->wParam), msg->lParam, TRUE ))
1659 {
1660 /* skip this message */
1661 HOOK_CallHooks( WH_CBT, HCBT_KEYSKIPPED, LOWORD(msg->wParam), msg->lParam, TRUE );
1662 accept_hardware_message( hw_id, TRUE, 0 );
1663 return FALSE;
1664 }
1665 accept_hardware_message( hw_id, remove, 0 );
1666 return TRUE;
1667 }
1668
1669
1670 /***********************************************************************
1671 * process_mouse_message
1672 *
1673 * returns TRUE if the contents of 'msg' should be passed to the application
1674 */
1675 static BOOL process_mouse_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1676 UINT first, UINT last, BOOL remove )
1677 {
1678 static MSG clk_msg;
1679
1680 POINT pt;
1681 UINT message;
1682 INT hittest;
1683 EVENTMSG event;
1684 GUITHREADINFO info;
1685 MOUSEHOOKSTRUCT hook;
1686 BOOL eatMsg;
1687
1688 /* find the window to dispatch this mouse message to */
1689
1690 GetGUIThreadInfo( GetCurrentThreadId(), &info );
1691 if (info.hwndCapture)
1692 {
1693 hittest = HTCLIENT;
1694 msg->hwnd = info.hwndCapture;
1695 }
1696 else
1697 {
1698 msg->hwnd = WINPOS_WindowFromPoint( msg->hwnd, msg->pt, &hittest );
1699 }
1700
1701 if (!msg->hwnd || !WIN_IsCurrentThread( msg->hwnd ))
1702 {
1703 accept_hardware_message( hw_id, TRUE, msg->hwnd );
1704 return FALSE;
1705 }
1706
1707 /* FIXME: is this really the right place for this hook? */
1708 event.message = msg->message;
1709 event.time = msg->time;
1710 event.hwnd = msg->hwnd;
1711 event.paramL = msg->pt.x;
1712 event.paramH = msg->pt.y;
1713 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1714
1715 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1716
1717 pt = msg->pt;
1718 message = msg->message;
1719 /* Note: windows has no concept of a non-client wheel message */
1720 if (message != WM_MOUSEWHEEL)
1721 {
1722 if (hittest != HTCLIENT)
1723 {
1724 message += WM_NCMOUSEMOVE - WM_MOUSEMOVE;
1725 msg->wParam = hittest;
1726 }
1727 else
1728 {
1729 /* coordinates don't get translated while tracking a menu */
1730 /* FIXME: should differentiate popups and top-level menus */
1731 if (!(info.flags & GUI_INMENUMODE))
1732 ScreenToClient( msg->hwnd, &pt );
1733 }
1734 }
1735 msg->lParam = MAKELONG( pt.x, pt.y );
1736
1737 /* translate double clicks */
1738
1739 if ((msg->message == WM_LBUTTONDOWN) ||
1740 (msg->message == WM_RBUTTONDOWN) ||
1741 (msg->message == WM_MBUTTONDOWN) ||
1742 (msg->message == WM_XBUTTONDOWN))
1743 {
1744 BOOL update = remove;
1745
1746 /* translate double clicks -
1747 * note that ...MOUSEMOVEs can slip in between
1748 * ...BUTTONDOWN and ...BUTTONDBLCLK messages */
1749
1750 if ((info.flags & (GUI_INMENUMODE|GUI_INMOVESIZE)) ||
1751 hittest != HTCLIENT ||
1752 (GetClassLongA( msg->hwnd, GCL_STYLE ) & CS_DBLCLKS))
1753 {
1754 if ((msg->message == clk_msg.message) &&
1755 (msg->hwnd == clk_msg.hwnd) &&
1756 (msg->wParam == clk_msg.wParam) &&
1757 (msg->time - clk_msg.time < GetDoubleClickTime()) &&
1758 (abs(msg->pt.x - clk_msg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
1759 (abs(msg->pt.y - clk_msg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
1760 {
1761 message += (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
1762 if (update)
1763 {
1764 clk_msg.message = 0; /* clear the double click conditions */
1765 update = FALSE;
1766 }
1767 }
1768 }
1769 if (message < first || message > last) return FALSE;
1770 /* update static double click conditions */
1771 if (update) clk_msg = *msg;
1772 }
1773 else
1774 {
1775 if (message < first || message > last) return FALSE;
1776 }
1777
1778 /* message is accepted now (but may still get dropped) */
1779
1780 hook.pt = msg->pt;
1781 hook.hwnd = msg->hwnd;
1782 hook.wHitTestCode = hittest;
1783 hook.dwExtraInfo = extra_info;
1784 if (HOOK_CallHooks( WH_MOUSE, remove ? HC_ACTION : HC_NOREMOVE,
1785 message, (LPARAM)&hook, TRUE ))
1786 {
1787 hook.pt = msg->pt;
1788 hook.hwnd = msg->hwnd;
1789 hook.wHitTestCode = hittest;
1790 hook.dwExtraInfo = extra_info;
1791 HOOK_CallHooks( WH_CBT, HCBT_CLICKSKIPPED, message, (LPARAM)&hook, TRUE );
1792 accept_hardware_message( hw_id, TRUE, 0 );
1793 return FALSE;
1794 }
1795
1796 if ((hittest == HTERROR) || (hittest == HTNOWHERE))
1797 {
1798 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd,
1799 MAKELONG( hittest, msg->message ));
1800 accept_hardware_message( hw_id, TRUE, 0 );
1801 return FALSE;
1802 }
1803
1804 accept_hardware_message( hw_id, remove, 0 );
1805
1806 if (!remove || info.hwndCapture)
1807 {
1808 msg->message = message;
1809 return TRUE;
1810 }
1811
1812 eatMsg = FALSE;
1813
1814 if ((msg->message == WM_LBUTTONDOWN) ||
1815 (msg->message == WM_RBUTTONDOWN) ||
1816 (msg->message == WM_MBUTTONDOWN) ||
1817 (msg->message == WM_XBUTTONDOWN))
1818 {
1819 /* Send the WM_PARENTNOTIFY,
1820 * note that even for double/nonclient clicks
1821 * notification message is still WM_L/M/RBUTTONDOWN.
1822 */
1823 send_parent_notify( msg->hwnd, msg->message, 0, msg->pt );
1824
1825 /* Activate the window if needed */
1826
1827 if (msg->hwnd != info.hwndActive)
1828 {
1829 HWND hwndTop = msg->hwnd;
1830 while (hwndTop)
1831 {
1832 if ((GetWindowLongW( hwndTop, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) != WS_CHILD) break;
1833 hwndTop = GetParent( hwndTop );
1834 }
1835
1836 if (hwndTop && hwndTop != GetDesktopWindow())
1837 {
1838 LONG ret = SendMessageW( msg->hwnd, WM_MOUSEACTIVATE, (WPARAM)hwndTop,
1839 MAKELONG( hittest, msg->message ) );
1840 switch(ret)
1841 {
1842 case MA_NOACTIVATEANDEAT:
1843 eatMsg = TRUE;
1844 /* fall through */
1845 case MA_NOACTIVATE:
1846 break;
1847 case MA_ACTIVATEANDEAT:
1848 eatMsg = TRUE;
1849 /* fall through */
1850 case MA_ACTIVATE:
1851 case 0:
1852 if (!FOCUS_MouseActivate( hwndTop )) eatMsg = TRUE;
1853 break;
1854 default:
1855 WARN( "unknown WM_MOUSEACTIVATE code %d\n", ret );
1856 break;
1857 }
1858 }
1859 }
1860 }
1861
1862 /* send the WM_SETCURSOR message */
1863
1864 /* Windows sends the normal mouse message as the message parameter
1865 in the WM_SETCURSOR message even if it's non-client mouse message */
1866 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd, MAKELONG( hittest, msg->message ));
1867
1868 msg->message = message;
1869 return !eatMsg;
1870 }
1871
1872
1873 /***********************************************************************
1874 * process_hardware_message
1875 *
1876 * Process a hardware message; return TRUE if message should be passed on to the app
1877 */
1878 static BOOL process_hardware_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1879 UINT first, UINT last, BOOL remove )
1880 {
1881 if (is_keyboard_message( msg->message ))
1882 return process_keyboard_message( msg, hw_id, hwnd_filter, first, last, remove );
1883
1884 if (is_mouse_message( msg->message ))
1885 return process_mouse_message( msg, hw_id, extra_info, hwnd_filter, first, last, remove );
1886
1887 ERR( "unknown message type %x\n", msg->message );
1888 return FALSE;
1889 }
1890
1891
1892 /***********************************************************************
1893 * call_sendmsg_callback
1894 *
1895 * Call the callback function of SendMessageCallback.
1896 */
1897 static inline void call_sendmsg_callback( SENDASYNCPROC callback, HWND hwnd, UINT msg,
1898 ULONG_PTR data, LRESULT result )
1899 {
1900 if (TRACE_ON(relay))
1901 DPRINTF( "%04x:Call message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
1902 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
1903 data, result );
1904 callback( hwnd, msg, data, result );
1905 if (TRACE_ON(relay))
1906 DPRINTF( "%04x:Ret message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
1907 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
1908 data, result );
1909 }
1910
1911
1912 /***********************************************************************
1913 * get_hook_proc
1914 *
1915 * Retrieve the hook procedure real value for a module-relative proc
1916 */
1917 static void *get_hook_proc( void *proc, const WCHAR *module )
1918 {
1919 HMODULE mod;
1920
1921 if (!(mod = GetModuleHandleW(module)))
1922 {
1923 TRACE( "loading %s\n", debugstr_w(module) );
1924 /* FIXME: the library will never be freed */
1925 if (!(mod = LoadLibraryW(module))) return NULL;
1926 }
1927 return (char *)mod + (ULONG_PTR)proc;
1928 }
1929
1930
1931 /***********************************************************************
1932 * peek_message
1933 *
1934 * Peek for a message matching the given parameters. Return FALSE if none available.
1935 * All pending sent messages are processed before returning.
1936 */
1937 static BOOL peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, int flags )
1938 {
1939 LRESULT result;
1940 ULONG_PTR extra_info = 0;
1941 struct user_thread_info *thread_info = get_user_thread_info();
1942 struct received_message_info info, *old_info;
1943 unsigned int hw_id = 0; /* id of previous hardware message */
1944
1945 if (!first && !last) last = ~0;
1946
1947 for (;;)
1948 {
1949 NTSTATUS res;
1950 void *buffer = NULL;
1951 size_t size = 0, buffer_size = 0;
1952
1953 do /* loop while buffer is too small */
1954 {
1955 if (buffer_size && !(buffer = HeapAlloc( GetProcessHeap(), 0, buffer_size )))
1956 return FALSE;
1957 SERVER_START_REQ( get_message )
1958 {
1959 req->flags = flags;
1960 req->get_win = hwnd;
1961 req->get_first = first;
1962 req->get_last = last;
1963 req->hw_id = hw_id;
1964 if (buffer_size) wine_server_set_reply( req, buffer, buffer_size );
1965 if (!(res = wine_server_call( req )))
1966 {
1967 size = wine_server_reply_size( reply );
1968 info.type = reply->type;
1969 info.msg.hwnd = reply->win;
1970 info.msg.message = reply->msg;
1971 info.msg.wParam = reply->wparam;
1972 info.msg.lParam = reply->lparam;
1973 info.msg.time = reply->time;
1974 info.msg.pt.x = reply->x;
1975 info.msg.pt.y = reply->y;
1976 hw_id = reply->hw_id;
1977 extra_info = reply->info;
1978 thread_info->active_hooks = reply->active_hooks;
1979 }
1980 else
1981 {
1982 HeapFree( GetProcessHeap(), 0, buffer );
1983 buffer_size = reply->total;
1984 }
1985 }
1986 SERVER_END_REQ;
1987 } while (res == STATUS_BUFFER_OVERFLOW);
1988
1989 if (res) return FALSE;
1990
1991 TRACE( "got type %d msg %x (%s) hwnd %p wp %x lp %lx\n",
1992 info.type, info.msg.message,
1993 (info.type == MSG_WINEVENT) ? "MSG_WINEVENT" : SPY_GetMsgName(info.msg.message, info.msg.hwnd),
1994 info.msg.hwnd, info.msg.wParam, info.msg.lParam );
1995
1996 switch(info.type)
1997 {
1998 case MSG_ASCII:
1999 case MSG_UNICODE:
2000 info.flags = ISMEX_SEND;
2001 break;
2002 case MSG_NOTIFY:
2003 info.flags = ISMEX_NOTIFY;
2004 break;
2005 case MSG_CALLBACK:
2006 info.flags = ISMEX_CALLBACK;
2007 break;
2008 case MSG_CALLBACK_RESULT:
2009 if (size >= sizeof(struct callback_msg_data))
2010 {
2011 const struct callback_msg_data *data = (const struct callback_msg_data *)buffer;
2012 call_sendmsg_callback( data->callback, info.msg.hwnd,
2013 info.msg.message, data->data, data->result );
2014 }
2015 goto next;
2016 case MSG_WINEVENT:
2017 if (size >= sizeof(struct winevent_msg_data))
2018 {
2019 WINEVENTPROC hook_proc;
2020 const struct winevent_msg_data *data = (const struct winevent_msg_data *)buffer;
2021
2022 hook_proc = data->hook_proc;
2023 size -= sizeof(*data);
2024 if (size)
2025 {
2026 WCHAR module[MAX_PATH];
2027
2028 size = min( size, (MAX_PATH - 1) * sizeof(WCHAR) );
2029 memcpy( module, buffer, size );
2030 module[size / sizeof(WCHAR)] = 0;
2031 if (!(hook_proc = get_hook_proc( hook_proc, module )))
2032 {
2033 ERR( "invalid winevent hook module name %s\n", debugstr_w(module) );
2034 goto next;
2035 }
2036 }
2037
2038 if (TRACE_ON(relay))
2039 DPRINTF( "%04x:Call winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%x,child_id=%lx,tid=%04x,time=%x)\n",
2040 GetCurrentThreadId(), hook_proc,
2041 data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2042 info.msg.lParam, data->tid, info.msg.time);
2043
2044 hook_proc( data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2045 info.msg.lParam, data->tid, info.msg.time );
2046
2047 if (TRACE_ON(relay))
2048 DPRINTF( "%04x:Ret winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%x,child_id=%lx,tid=%04x,time=%x)\n",
2049 GetCurrentThreadId(), hook_proc,
2050 data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2051 info.msg.lParam, data->tid, info.msg.time);
2052 }
2053 goto next;
2054 case MSG_OTHER_PROCESS:
2055 info.flags = ISMEX_SEND;
2056 if (!unpack_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2057 &info.msg.lParam, &buffer, size ))
2058 {
2059 /* ignore it */
2060 reply_message( &info, 0, TRUE );
2061 goto next;
2062 }
2063 break;
2064 case MSG_HARDWARE:
2065 if (!process_hardware_message( &info.msg, hw_id, extra_info,
2066 hwnd, first, last, flags & GET_MSG_REMOVE ))
2067 {
2068 TRACE("dropping msg %x\n", info.msg.message );
2069 goto next; /* ignore it */
2070 }
2071 thread_info->GetMessagePosVal = MAKELONG( info.msg.pt.x, info.msg.pt.y );
2072 /* fall through */
2073 case MSG_POSTED:
2074 thread_info->GetMessageExtraInfoVal = extra_info;
2075 if (info.msg.message >= WM_DDE_FIRST && info.msg.message <= WM_DDE_LAST)
2076 {
2077 if (!unpack_dde_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2078 &info.msg.lParam, &buffer, size ))
2079 goto next; /* ignore it */
2080 }
2081 *msg = info.msg;
2082 HeapFree( GetProcessHeap(), 0, buffer );
2083 return TRUE;
2084 }
2085
2086 /* if we get here, we have a sent message; call the window procedure */
2087 old_info = thread_info->receive_info;
2088 thread_info->receive_info = &info;
2089 result = call_window_proc( info.msg.hwnd, info.msg.message, info.msg.wParam,
2090 info.msg.lParam, (info.type != MSG_ASCII), FALSE );
2091 reply_message( &info, result, TRUE );
2092 thread_info->receive_info = old_info;
2093 next:
2094 HeapFree( GetProcessHeap(), 0, buffer );
2095 }
2096 }
2097
2098
2099 /***********************************************************************
2100 * process_sent_messages
2101 *
2102 * Process all pending sent messages.
2103 */
2104 inline static void process_sent_messages(void)
2105 {
2106 MSG msg;
2107 peek_message( &msg, 0, 0, 0, GET_MSG_REMOVE | GET_MSG_SENT_ONLY );
2108 }
2109
2110
2111 /***********************************************************************
2112 * get_server_queue_handle
2113 *
2114 * Get a handle to the server message queue for the current thread.
2115 */
2116 static HANDLE get_server_queue_handle(void)
2117 {
2118 struct user_thread_info *thread_info = get_user_thread_info();
2119 HANDLE ret;
2120
2121 if (!(ret = thread_info->server_queue))
2122 {
2123 SERVER_START_REQ( get_msg_queue )
2124 {
2125 wine_server_call( req );
2126 ret = reply->handle;
2127 }
2128 SERVER_END_REQ;
2129 thread_info->server_queue = ret;
2130 if (!ret) ERR( "Cannot get server thread queue\n" );
2131 }
2132 return ret;
2133 }
2134
2135
2136 /***********************************************************************
2137 * wait_message_reply
2138 *
2139 * Wait until a sent message gets replied to.
2140 */
2141 static void wait_message_reply( UINT flags )
2142 {
2143 HANDLE server_queue = get_server_queue_handle();
2144
2145 for (;;)
2146 {
2147 unsigned int wake_bits = 0, changed_bits = 0;
2148 DWORD dwlc, res;
2149
2150 SERVER_START_REQ( set_queue_mask )
2151 {
2152 req->wake_mask = QS_SMRESULT | ((flags & SMTO_BLOCK) ? 0 : QS_SENDMESSAGE);
2153 req->changed_mask = req->wake_mask;
2154 req->skip_wait = 1;
2155 if (!wine_server_call( req ))
2156 {
2157 wake_bits = reply->wake_bits;
2158 changed_bits = reply->changed_bits;
2159 }
2160 }
2161 SERVER_END_REQ;
2162
2163 if (wake_bits & QS_SMRESULT) return; /* got a result */
2164 if (wake_bits & QS_SENDMESSAGE)
2165 {
2166 /* Process the sent message immediately */
2167 process_sent_messages();
2168 continue;
2169 }
2170
2171 /* now wait for it */
2172
2173 ReleaseThunkLock( &dwlc );
2174 res = USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue,
2175 INFINITE, QS_SENDMESSAGE, 0 );
2176 if (dwlc) RestoreThunkLock( dwlc );
2177 }
2178 }
2179
2180 /***********************************************************************
2181 * put_message_in_queue
2182 *
2183 * Put a sent message into the destination queue.
2184 * For inter-process message, reply_size is set to expected size of reply data.
2185 */
2186 static BOOL put_message_in_queue( const struct send_message_info *info, size_t *reply_size )
2187 {
2188 struct packed_message data;
2189 message_data_t msg_data;
2190 unsigned int res;
2191 int i, timeout = 0;
2192
2193 /* Check for INFINITE timeout for compatibility with Win9x,
2194 * although Windows >= NT does not do so
2195 */
2196 if (info->type != MSG_NOTIFY &&
2197 info->type != MSG_CALLBACK &&
2198 info->type != MSG_POSTED &&
2199 info->timeout != INFINITE)
2200 timeout = info->timeout;
2201
2202 data.count = 0;
2203 if (info->type == MSG_OTHER_PROCESS)
2204 {
2205 *reply_size = pack_message( info->hwnd, info->msg, info->wparam, info->lparam, &data );
2206 if (data.count == -1)
2207 {
2208 WARN( "cannot pack message %x\n", info->msg );
2209 return FALSE;
2210 }
2211 }
2212 else if (info->type == MSG_CALLBACK)
2213 {
2214 msg_data.callback.callback = info->callback;
2215 msg_data.callback.data = info->data;
2216 msg_data.callback.result = 0;
2217 data.data[0] = &msg_data;
2218 data.size[0] = sizeof(msg_data.callback);
2219 data.count = 1;
2220 }
2221 else if (info->type == MSG_POSTED && info->msg >= WM_DDE_FIRST && info->msg <= WM_DDE_LAST)
2222 {
2223 return post_dde_message( &data, info );
2224 }
2225
2226 SERVER_START_REQ( send_message )
2227 {
2228 req->id = info->dest_tid;
2229 req->type = info->type;
2230 req->flags = 0;
2231 req->win = info->hwnd;
2232 req->msg = info->msg;
2233 req->wparam = info->wparam;
2234 req->lparam = info->lparam;
2235 req->timeout = timeout;
2236
2237 if (info->flags & SMTO_ABORTIFHUNG) req->flags |= SEND_MSG_ABORT_IF_HUNG;
2238 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
2239 if ((res = wine_server_call( req )))
2240 {
2241 if (res == STATUS_INVALID_PARAMETER)
2242 /* FIXME: find a STATUS_ value for this one */
2243 SetLastError( ERROR_INVALID_THREAD_ID );
2244 else
2245 SetLastError( RtlNtStatusToDosError(res) );
2246 }
2247 }
2248 SERVER_END_REQ;
2249 return !res;
2250 }
2251
2252
2253 /***********************************************************************
2254 * retrieve_reply
2255 *
2256 * Retrieve a message reply from the server.
2257 */
2258 static LRESULT retrieve_reply( const struct send_message_info *info,
2259 size_t reply_size, LRESULT *result )
2260 {
2261 NTSTATUS status;
2262 void *reply_data = NULL;
2263
2264 if (reply_size)
2265 {
2266 if (!(reply_data = HeapAlloc( GetProcessHeap(), 0, reply_size )))
2267 {
2268 WARN( "no memory for reply, will be truncated\n" );
2269 reply_size = 0;
2270 }
2271 }
2272 SERVER_START_REQ( get_message_reply )
2273 {
2274 req->cancel = 1;
2275 if (reply_size) wine_server_set_reply( req, reply_data, reply_size );
2276 if (!(status = wine_server_call( req ))) *result = reply->result;
2277 reply_size = wine_server_reply_size( reply );
2278 }
2279 SERVER_END_REQ;
2280 if (!status && reply_size)
2281 unpack_reply( info->hwnd, info->msg, info->wparam, info->lparam, reply_data, reply_size );
2282
2283 HeapFree( GetProcessHeap(), 0, reply_data );
2284
2285 TRACE( "hwnd %p msg %x (%s) wp %x lp %lx got reply %lx (err=%d)\n",
2286 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam,
2287 info->lparam, *result, status );
2288
2289 /* MSDN states that last error is 0 on timeout, but at least NT4 returns ERROR_TIMEOUT */
2290 if (status) SetLastError( RtlNtStatusToDosError(status) );
2291 return !status;
2292 }
2293
2294
2295 /***********************************************************************
2296 * send_inter_thread_message
2297 */
2298 static LRESULT send_inter_thread_message( const struct send_message_info *info, LRESULT *res_ptr )
2299 {
2300 size_t reply_size = 0;
2301
2302 TRACE( "hwnd %p msg %x (%s) wp %x lp %lx\n",
2303 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam, info->lparam );
2304
2305 USER_CheckNotLock();
2306
2307 if (!put_message_in_queue( info, &reply_size )) return 0;
2308
2309 /* there's no reply to wait for on notify/callback messages */
2310 if (info->type == MSG_NOTIFY || info->type == MSG_CALLBACK) return 1;
2311
2312 wait_message_reply( info->flags );
2313 return retrieve_reply( info, reply_size, res_ptr );
2314 }
2315
2316
2317 /***********************************************************************
2318 * MSG_SendInternalMessageTimeout
2319 *
2320 * Same as SendMessageTimeoutW but sends the message to a specific thread
2321 * without requiring a window handle. Only works for internal Wine messages.
2322 */
2323 LRESULT MSG_SendInternalMessageTimeout( DWORD dest_pid, DWORD dest_tid,
2324 UINT msg, WPARAM wparam, LPARAM lparam,
2325 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2326 {
2327 struct send_message_info info;
2328 LRESULT ret, result;
2329
2330 assert( msg & 0x80000000 ); /* must be an internal Wine message */
2331
2332 info.type = MSG_UNICODE;
2333 info.dest_tid = dest_tid;
2334 info.hwnd = 0;
2335 info.msg = msg;
2336 info.wparam = wparam;
2337 info.lparam = lparam;
2338 info.flags = flags;
2339 info.timeout = timeout;
2340
2341 if (USER_IsExitingThread( dest_tid )) return 0;
2342
2343 if (dest_tid == GetCurrentThreadId())
2344 {
2345 result = handle_internal_message( 0, msg, wparam, lparam );
2346 ret = 1;
2347 }
2348 else
2349 {
2350 if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
2351 ret = send_inter_thread_message( &info, &result );
2352 }
2353 if (ret && res_ptr) *res_ptr = result;
2354 return ret;
2355 }
2356
2357
2358 /***********************************************************************
2359 * SendMessageTimeoutW (USER32.@)
2360 */
2361 LRESULT WINAPI SendMessageTimeoutW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2362 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2363 {
2364 struct send_message_info info;
2365 DWORD dest_pid;
2366 LRESULT ret, result;
2367
2368 info.type = MSG_UNICODE;
2369 info.hwnd = hwnd;
2370 info.msg = msg;
2371 info.wparam = wparam;
2372 info.lparam = lparam;
2373 info.flags = flags;
2374 info.timeout = timeout;
2375
2376 if (is_broadcast(hwnd))
2377 {
2378 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2379 if (res_ptr) *res_ptr = 1;
2380 return 1;
2381 }
2382
2383 if (!(info.dest_tid = GetWindowThreadProcessId( hwnd, &dest_pid ))) return 0;
2384
2385 if (USER_IsExitingThread( info.dest_tid )) return 0;
2386
2387 SPY_EnterMessage( SPY_SENDMESSAGE, hwnd, msg, wparam, lparam );
2388
2389 if (info.dest_tid == GetCurrentThreadId())
2390 {
2391 result = call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
2392 ret = 1;
2393 }
2394 else
2395 {
2396 if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
2397 ret = send_inter_thread_message( &info, &result );
2398 }
2399
2400 SPY_ExitMessage( SPY_RESULT_OK, hwnd, msg, result, wparam, lparam );
2401 if (ret && res_ptr) *res_ptr = result;
2402 return ret;
2403 }
2404
2405 static LRESULT send_inter_thread_callback( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
2406 LRESULT *result, void *arg )
2407 {
2408 struct send_message_info *info = arg;
2409 info->hwnd = hwnd;
2410 info->msg = msg;
2411 info->wparam = wp;
2412 info->lparam = lp;
2413 return send_inter_thread_message( info, result );
2414 }
2415
2416 /***********************************************************************
2417 * SendMessageTimeoutA (USER32.@)
2418 */
2419 LRESULT WINAPI SendMessageTimeoutA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2420 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2421 {
2422 struct send_message_info info;
2423 DWORD dest_pid;
2424 LRESULT ret, result;
2425
2426 info.type = MSG_ASCII;
2427 info.hwnd = hwnd;
2428 info.msg = msg;
2429 info.wparam = wparam;
2430 info.lparam = lparam;
2431 info.flags = flags;
2432 info.timeout = timeout;
2433
2434 if (is_broadcast(hwnd))
2435 {
2436 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2437 if (res_ptr) *res_ptr = 1;
2438 return 1;
2439 }
2440
2441 if (!(info.dest_tid = GetWindowThreadProcessId( hwnd, &dest_pid ))) return 0;
2442
2443 if (USER_IsExitingThread( info.dest_tid )) return 0;
2444
2445 SPY_EnterMessage( SPY_SENDMESSAGE, hwnd, msg, wparam, lparam );
2446
2447 if (info.dest_tid == GetCurrentThreadId())
2448 {
2449 result = call_window_proc( hwnd, msg, wparam, lparam, FALSE, TRUE );
2450 ret = 1;
2451 }
2452 else if (dest_pid == GetCurrentProcessId())
2453 {
2454 ret = send_inter_thread_message( &info, &result );
2455 }
2456 else
2457 {
2458 /* inter-process message: need to map to Unicode */
2459 info.type = MSG_OTHER_PROCESS;
2460 if (is_unicode_message( info.msg ))
2461 ret = WINPROC_CallProcAtoW( send_inter_thread_callback, info.hwnd, info.msg,
2462 info.wparam, info.lparam, &result, &info );
2463 else ret = send_inter_thread_message( &info, &result );
2464 }
2465 SPY_ExitMessage( SPY_RESULT_OK, hwnd, msg, result, wparam, lparam );
2466 if (ret && res_ptr) *res_ptr = result;
2467 return ret;
2468 }
2469
2470
2471 /***********************************************************************
2472 * SendMessageW (USER32.@)
2473 */
2474 LRESULT WINAPI SendMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2475 {
2476 DWORD_PTR res = 0;
2477 SendMessageTimeoutW( hwnd, msg, wparam, lparam, SMTO_NORMAL, 0, &res );
2478 return res;
2479 }
2480
2481
2482 /***********************************************************************
2483 * SendMessageA (USER32.@)
2484 */
2485 LRESULT WINAPI SendMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2486 {
2487 DWORD_PTR res = 0;
2488 SendMessageTimeoutA( hwnd, msg, wparam, lparam, SMTO_NORMAL, 0, &res );
2489 return res;
2490 }
2491
2492
2493 /***********************************************************************
2494 * SendNotifyMessageA (USER32.@)
2495 */
2496 BOOL WINAPI SendNotifyMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2497 {
2498 return SendNotifyMessageW( hwnd, msg, map_wparam_AtoW( msg, wparam ), lparam );
2499 }
2500
2501
2502 /***********************************************************************
2503 * SendNotifyMessageW (USER32.@)
2504 */
2505 BOOL WINAPI SendNotifyMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2506 {
2507 struct send_message_info info;
2508 LRESULT result;
2509
2510 if (is_pointer_message(msg))
2511 {
2512 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2513 return FALSE;
2514 }
2515
2516 info.type = MSG_NOTIFY;
2517 info.hwnd = hwnd;
2518 info.msg = msg;
2519 info.wparam = wparam;
2520 info.lparam = lparam;
2521 info.flags = 0;
2522
2523 if (is_broadcast(hwnd))
2524 {
2525 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2526 return TRUE;
2527 }
2528
2529 if (!(info.dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2530
2531 if (USER_IsExitingThread( info.dest_tid )) return TRUE;
2532
2533 if (info.dest_tid == GetCurrentThreadId())
2534 {
2535 call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
2536 return TRUE;
2537 }
2538 return send_inter_thread_message( &info, &result );
2539 }
2540
2541
2542 /***********************************************************************
2543 * SendMessageCallbackA (USER32.@)
2544 */
2545 BOOL WINAPI SendMessageCallbackA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2546 SENDASYNCPROC callback, ULONG_PTR data )
2547 {
2548 return SendMessageCallbackW( hwnd, msg, map_wparam_AtoW( msg, wparam ),
2549 lparam, callback, data );
2550 }
2551
2552
2553 /***********************************************************************
2554 * SendMessageCallbackW (USER32.@)
2555 */
2556 BOOL WINAPI SendMessageCallbackW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2557 SENDASYNCPROC callback, ULONG_PTR data )
2558 {
2559 struct send_message_info info;
2560 LRESULT result;
2561
2562 if (is_pointer_message(msg))
2563 {
2564 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2565 return FALSE;
2566 }
2567
2568 info.type = MSG_CALLBACK;
2569 info.hwnd = hwnd;
2570 info.msg = msg;
2571 info.wparam = wparam;
2572 info.lparam = lparam;
2573 info.callback = callback;
2574 info.data = data;
2575 info.flags = 0;
2576
2577 if (is_broadcast(hwnd))
2578 {
2579 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2580 return TRUE;
2581 }
2582
2583 if (!(info.dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2584
2585 if (USER_IsExitingThread( info.dest_tid )) return TRUE;
2586
2587 if (info.dest_tid == GetCurrentThreadId())
2588 {
2589 result = call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
2590 call_sendmsg_callback( callback, hwnd, msg, data, result );
2591 return TRUE;
2592 }
2593 return send_inter_thread_message( &info, &result );
2594 }
2595
2596
2597 /***********************************************************************
2598 * ReplyMessage (USER32.@)
2599 */
2600 BOOL WINAPI ReplyMessage( LRESULT result )
2601 {
2602 struct received_message_info *info = get_user_thread_info()->receive_info;
2603
2604 if (!info) return FALSE;
2605 reply_message( info, result, FALSE );
2606 return TRUE;
2607 }
2608
2609
2610 /***********************************************************************
2611 * InSendMessage (USER32.@)
2612 */
2613 BOOL WINAPI InSendMessage(void)
2614 {
2615 return (InSendMessageEx(NULL) & (ISMEX_SEND|ISMEX_REPLIED)) == ISMEX_SEND;
2616 }
2617
2618
2619 /***********************************************************************
2620 * InSendMessageEx (USER32.@)
2621 */
2622 DWORD WINAPI InSendMessageEx( LPVOID reserved )
2623 {
2624 struct received_message_info *info = get_user_thread_info()->receive_info;
2625
2626 if (info) return info->flags;
2627 return ISMEX_NOSEND;
2628 }
2629
2630
2631 /***********************************************************************
2632 * PostMessageA (USER32.@)
2633 */
2634 BOOL WINAPI PostMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2635 {
2636 return PostMessageW( hwnd, msg, map_wparam_AtoW( msg, wparam ), lparam );
2637 }
2638
2639
2640 /***********************************************************************
2641 * PostMessageW (USER32.@)
2642 */
2643 BOOL WINAPI PostMessageW( 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 TRACE( "hwnd %p msg %x (%s) wp %x lp %lx\n",
2654 hwnd, msg, SPY_GetMsgName(msg, hwnd), wparam, lparam );
2655
2656 info.type = MSG_POSTED;
2657 info.hwnd = hwnd;
2658 info.msg = msg;
2659 info.wparam = wparam;
2660 info.lparam = lparam;
2661 info.flags = 0;
2662
2663 if (is_broadcast(hwnd))
2664 {
2665 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2666 return TRUE;
2667 }
2668
2669 if (!hwnd) return PostThreadMessageW( GetCurrentThreadId(), msg, wparam, lparam );
2670
2671 if (!(info.dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2672
2673 if (USER_IsExitingThread( info.dest_tid )) return TRUE;
2674
2675 return put_message_in_queue( &info, NULL );
2676 }
2677
2678
2679 /**********************************************************************
2680 * PostThreadMessageA (USER32.@)
2681 */
2682 BOOL WINAPI PostThreadMessageA( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2683 {
2684 return PostThreadMessageW( thread, msg, map_wparam_AtoW( msg, wparam ), lparam );
2685 }
2686
2687
2688 /**********************************************************************
2689 * PostThreadMessageW (USER32.@)
2690 */
2691 BOOL WINAPI PostThreadMessageW( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2692 {
2693 struct send_message_info info;
2694
2695 if (is_pointer_message( msg ))
2696 {
2697 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2698 return FALSE;
2699 }
2700 if (USER_IsExitingThread( thread )) return TRUE;
2701
2702 info.type = MSG_POSTED;
2703 info.dest_tid = thread;
2704 info.hwnd = 0;
2705 info.msg = msg;
2706 info.wparam = wparam;
2707 info.lparam = lparam;
2708 info.flags = 0;
2709 return put_message_in_queue( &info, NULL );
2710 }
2711
2712
2713 /***********************************************************************
2714 * PostQuitMessage (USER32.@)
2715 *
2716 * Posts a quit message to the current thread's message queue.
2717 *
2718 * PARAMS
2719 * exit_code [I] Exit code to return from message loop.
2720 *
2721 * RETURNS
2722 * Nothing.
2723 *
2724 * NOTES
2725 * This function is not the same as calling:
2726 *|PostThreadMessage(GetCurrentThreadId(), WM_QUIT, exit_code, 0);
2727 * It instead sets a flag in the message queue that signals it to generate
2728 * a WM_QUIT message when there are no other pending sent or posted messages
2729 * in the queue.
2730 */
2731 void WINAPI PostQuitMessage( INT exit_code )
2732 {
2733 SERVER_START_REQ( post_quit_message )
2734 {
2735 req->exit_code = exit_code;
2736 wine_server_call( req );
2737 }
2738 SERVER_END_REQ;
2739 }
2740
2741
2742 /***********************************************************************
2743 * PeekMessageW (USER32.@)
2744 */
2745 BOOL WINAPI PeekMessageW( MSG *msg_out, HWND hwnd, UINT first, UINT last, UINT flags )
2746 {
2747 struct user_thread_info *thread_info = get_user_thread_info();
2748 MSG msg;
2749
2750 if (HIWORD(flags))
2751 FIXME("PM_QS_xxxx flags (%04x) are not handled\n", flags >> 16);
2752
2753 USER_CheckNotLock();
2754
2755 /* check for graphics events */
2756 USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
2757
2758 hwnd = WIN_GetFullHandle( hwnd );
2759
2760 for (;;)
2761 {
2762 if (!peek_message( &msg, hwnd, first, last, (flags & PM_REMOVE) ? GET_MSG_REMOVE : 0 ))
2763 {
2764 if (!(flags & PM_NOYIELD))
2765 {
2766 DWORD count;
2767 ReleaseThunkLock(&count);
2768 NtYieldExecution();
2769 if (count) RestoreThunkLock(count);
2770 }
2771 return FALSE;
2772 }
2773 if (msg.message & 0x80000000)
2774 {
2775 if (!(flags & PM_REMOVE))
2776 {
2777 /* Have to remove the message explicitly.
2778 Do this before handling it, because the message handler may
2779 call PeekMessage again */
2780 peek_message( &msg, msg.hwnd, msg.message, msg.message, GET_MSG_REMOVE );
2781 }
2782 handle_internal_message( msg.hwnd, msg.message, msg.wParam, msg.lParam );
2783 }
2784 else break;
2785 }
2786
2787 thread_info->GetMessageTimeVal = msg.time;
2788 msg.pt.x = LOWORD( thread_info->GetMessagePosVal );
2789 msg.pt.y = HIWORD( thread_info->GetMessagePosVal );
2790
2791 HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, flags & PM_REMOVE, (LPARAM)&msg, TRUE );
2792
2793 /* copy back our internal safe copy of message data to msg_out.
2794 * msg_out is a variable from the *program*, so it can't be used
2795 * internally as it can get "corrupted" by our use of SendMessage()
2796 * (back to the program) inside the message handling itself. */
2797 if (!msg_out)
2798 {
2799 SetLastError( ERROR_NOACCESS );
2800 return FALSE;
2801 }
2802 *msg_out = msg;
2803 return TRUE;
2804 }
2805
2806
2807 /***********************************************************************
2808 * PeekMessageA (USER32.@)
2809 */
2810 BOOL WINAPI PeekMessageA( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
2811 {
2812 BOOL ret = PeekMessageW( msg, hwnd, first, last, flags );
2813 if (ret) msg->wParam = map_wparam_WtoA( msg->message, msg->wParam );
2814 return ret;
2815 }
2816
2817
2818 /***********************************************************************
2819 * GetMessageW (USER32.@)
2820 */
2821 BOOL WINAPI GetMessageW( MSG *msg, HWND hwnd, UINT first, UINT last )
2822 {
2823 HANDLE server_queue = get_server_queue_handle();
2824 int mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
2825
2826 if (first || last)
2827 {
2828 if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
2829 if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
2830 ((first <= WM_NCMOUSELAST) && (last >= WM_NCMOUSEFIRST)) ) mask |= QS_MOUSE;
2831 if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER;
2832 if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER;
2833 if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT;
2834 }
2835 else mask |= QS_MOUSE | QS_KEY | QS_TIMER | QS_PAINT;
2836
2837 while (!PeekMessageW( msg, hwnd, first, last, PM_REMOVE ))
2838 {
2839 /* wait until one of the bits is set */
2840 unsigned int wake_bits = 0, changed_bits = 0;
2841 DWORD dwlc;
2842
2843 SERVER_START_REQ( set_queue_mask )
2844 {
2845 req->wake_mask = QS_SENDMESSAGE;
2846 req->changed_mask = mask;
2847 req->skip_wait = 1;
2848 if (!wine_server_call( req ))
2849 {
2850 wake_bits = reply->wake_bits;
2851 changed_bits = reply->changed_bits;
2852 }
2853 }
2854 SERVER_END_REQ;
2855
2856 if (changed_bits & mask) continue;
2857 if (wake_bits & QS_SENDMESSAGE) continue;
2858
2859 TRACE( "(%04x) mask=%08x, bits=%08x, changed=%08x, waiting\n",
2860 GetCurrentThreadId(), mask, wake_bits, changed_bits );
2861
2862 ReleaseThunkLock( &dwlc );
2863 USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue, INFINITE, QS_ALLINPUT, 0 );
2864 if (dwlc) RestoreThunkLock( dwlc );
2865 }
2866
2867 return (msg->message != WM_QUIT);
2868 }
2869
2870
2871 /***********************************************************************
2872 * GetMessageA (USER32.@)
2873 */
2874 BOOL WINAPI GetMessageA( MSG *msg, HWND hwnd, UINT first, UINT last )
2875 {
2876 GetMessageW( msg, hwnd, first, last );
2877 msg->wParam = map_wparam_WtoA( msg->message, msg->wParam );
2878 return (msg->message != WM_QUIT);
2879 }
2880
2881
2882 /***********************************************************************
2883 * IsDialogMessageA (USER32.@)
2884 * IsDialogMessage (USER32.@)
2885 */
2886 BOOL WINAPI IsDialogMessageA( HWND hwndDlg, LPMSG pmsg )
2887 {
2888 MSG msg = *pmsg;
2889 msg.wParam = map_wparam_AtoW( msg.message, msg.wParam );
2890 return IsDialogMessageW( hwndDlg, &msg );
2891 }
2892
2893
2894 /***********************************************************************
2895 * TranslateMessage (USER32.@)
2896 *
2897 * Implementation of TranslateMessage.
2898 *
2899 * TranslateMessage translates virtual-key messages into character-messages,
2900 * as follows :
2901 * WM_KEYDOWN/WM_KEYUP combinations produce a WM_CHAR or WM_DEADCHAR message.
2902 * ditto replacing WM_* with WM_SYS*
2903 * This produces WM_CHAR messages only for keys mapped to ASCII characters
2904 * by the keyboard driver.
2905 *
2906 * If the message is WM_KEYDOWN, WM_KEYUP, WM_SYSKEYDOWN, or WM_SYSKEYUP, the
2907 * return value is nonzero, regardless of the translation.
2908 *
2909 */
2910 BOOL WINAPI TranslateMessage( const MSG *msg )
2911 {
2912 UINT message;
2913 WCHAR wp[2];
2914 BYTE state[256];
2915
2916 if (msg->message < WM_KEYFIRST || msg->message > WM_KEYLAST) return FALSE;
2917 if (msg->message != WM_KEYDOWN && msg->message != WM_SYSKEYDOWN) return TRUE;
2918
2919 TRACE_(key)("Translating key %s (%04x), scancode %02x\n",
2920 SPY_GetVKeyName(msg->wParam), msg->wParam, LOBYTE(HIWORD(msg->lParam)));
2921
2922 GetKeyboardState( state );
2923 /* FIXME : should handle ToUnicode yielding 2 */
2924 switch (ToUnicode(msg->wParam, HIWORD(msg->lParam), state, wp, 2, 0))
2925 {
2926 case 1:
2927 message = (msg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
2928 TRACE_(key)("1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
2929 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
2930 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
2931 break;
2932
2933 case -1:
2934 message = (msg->message == WM_KEYDOWN) ? WM_DEADCHAR : WM_SYSDEADCHAR;
2935 TRACE_(key)("-1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
2936 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
2937 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
2938 break;
2939 }
2940 return TRUE;
2941 }
2942
2943
2944 /***********************************************************************
2945 * DispatchMessageA (USER32.@)
2946 *
2947 * See DispatchMessageW.
2948 */
2949 LONG WINAPI DispatchMessageA( const MSG* msg )
2950 {
2951 WND * wndPtr;
2952 LONG retval;
2953 WNDPROC winproc;
2954
2955 /* Process timer messages */
2956 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
2957 {
2958 if (msg->lParam) return CallWindowProcA( (WNDPROC)msg->lParam, msg->hwnd,
2959 msg->message, msg->wParam, GetTickCount() );
2960 }
2961
2962 if (!(wndPtr = WIN_GetPtr( msg->hwnd )))
2963 {
2964 if (msg->hwnd) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
2965 return 0;
2966 }
2967 if (wndPtr == WND_OTHER_PROCESS || wndPtr == WND_DESKTOP)
2968 {
2969 if (IsWindow( msg->hwnd )) SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2970 else SetLastError( ERROR_INVALID_WINDOW_HANDLE );
2971 return 0;
2972 }
2973 if (wndPtr->tid != GetCurrentThreadId())
2974 {
2975 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2976 WIN_ReleasePtr( wndPtr );
2977 return 0;
2978 }
2979 winproc = wndPtr->winproc;
2980 WIN_ReleasePtr( wndPtr );
2981
2982 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
2983 msg->wParam, msg->lParam );
2984 retval = CallWindowProcA( winproc, msg->hwnd, msg->message,
2985 msg->wParam, msg->lParam );
2986 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
2987 msg->wParam, msg->lParam );
2988
2989 if (msg->message == WM_PAINT)
2990 {
2991 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
2992 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
2993 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
2994 DeleteObject( hrgn );
2995 }
2996 return retval;
2997 }
2998
2999
3000 /***********************************************************************
3001 * DispatchMessageW (USER32.@) Process a message
3002 *
3003 * Process the message specified in the structure *_msg_.
3004 *
3005 * If the lpMsg parameter points to a WM_TIMER message and the
3006 * parameter of the WM_TIMER message is not NULL, the lParam parameter
3007 * points to the function that is called instead of the window
3008 * procedure.
3009 *
3010 * The message must be valid.
3011 *
3012 * RETURNS
3013 *
3014 * DispatchMessage() returns the result of the window procedure invoked.
3015 *
3016 * CONFORMANCE
3017 *
3018 * ECMA-234, Win32
3019 *
3020 */
3021 LONG WINAPI DispatchMessageW( const MSG* msg )
3022 {
3023 WND * wndPtr;
3024 LONG retval;
3025 WNDPROC winproc;
3026
3027 /* Process timer messages */
3028 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
3029 {
3030 if (msg->lParam) return CallWindowProcW( (WNDPROC)msg->lParam, msg->hwnd,
3031 msg->message, msg->wParam, GetTickCount() );
3032 }
3033
3034 if (!(wndPtr = WIN_GetPtr( msg->hwnd )))
3035 {
3036 if (msg->hwnd) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
3037 return 0;
3038 }
3039 if (wndPtr == WND_OTHER_PROCESS || wndPtr == WND_DESKTOP)
3040 {
3041 if (IsWindow( msg->hwnd )) SetLastError( ERROR_MESSAGE_SYNC_ONLY );
3042 else SetLastError( ERROR_INVALID_WINDOW_HANDLE );
3043 return 0;
3044 }
3045 if (wndPtr->tid != GetCurrentThreadId())
3046 {
3047 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
3048 WIN_ReleasePtr( wndPtr );
3049 return 0;
3050 }
3051 winproc = wndPtr->winproc;
3052 WIN_ReleasePtr( wndPtr );
3053
3054 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
3055 msg->wParam, msg->lParam );
3056 retval = CallWindowProcW( winproc, msg->hwnd, msg->message,
3057 msg->wParam, msg->lParam );
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 * GetMessagePos (USER.119)
3074 * GetMessagePos (USER32.@)
3075 *
3076 * The GetMessagePos() function returns a long value representing a
3077 * cursor position, in screen coordinates, when the last message
3078 * retrieved by the GetMessage() function occurs. The x-coordinate is
3079 * in the low-order word of the return value, the y-coordinate is in
3080 * the high-order word. The application can use the MAKEPOINT()
3081 * macro to obtain a POINT structure from the return value.
3082 *
3083 * For the current cursor position, use GetCursorPos().
3084 *
3085 * RETURNS
3086 *
3087 * Cursor position of last message on success, zero on failure.
3088 *
3089 * CONFORMANCE
3090 *
3091 * ECMA-234, Win32
3092 *
3093 */
3094 DWORD WINAPI GetMessagePos(void)
3095 {
3096 return get_user_thread_info()->GetMessagePosVal;
3097 }
3098
3099
3100 /***********************************************************************
3101 * GetMessageTime (USER.120)
3102 * GetMessageTime (USER32.@)
3103 *
3104 * GetMessageTime() returns the message time for the last message
3105 * retrieved by the function. The time is measured in milliseconds with
3106 * the same offset as GetTickCount().
3107 *
3108 * Since the tick count wraps, this is only useful for moderately short
3109 * relative time comparisons.
3110 *
3111 * RETURNS
3112 *
3113 * Time of last message on success, zero on failure.
3114 */
3115 LONG WINAPI GetMessageTime(void)
3116 {
3117 return get_user_thread_info()->GetMessageTimeVal;
3118 }
3119
3120
3121 /***********************************************************************
3122 * GetMessageExtraInfo (USER.288)
3123 * GetMessageExtraInfo (USER32.@)
3124 */
3125 LPARAM WINAPI GetMessageExtraInfo(void)
3126 {
3127 return get_user_thread_info()->GetMessageExtraInfoVal;
3128 }
3129
3130
3131 /***********************************************************************
3132 * SetMessageExtraInfo (USER32.@)
3133 */
3134 LPARAM WINAPI SetMessageExtraInfo(LPARAM lParam)
3135 {
3136 struct user_thread_info *thread_info = get_user_thread_info();
3137 LONG old_value = thread_info->GetMessageExtraInfoVal;
3138 thread_info->GetMessageExtraInfoVal = lParam;
3139 return old_value;
3140 }
3141
3142
3143 /***********************************************************************
3144 * WaitMessage (USER.112) Suspend thread pending messages
3145 * WaitMessage (USER32.@) Suspend thread pending messages
3146 *
3147 * WaitMessage() suspends a thread until events appear in the thread's
3148 * queue.
3149 */
3150 BOOL WINAPI WaitMessage(void)
3151 {
3152 return (MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, QS_ALLINPUT, 0 ) != WAIT_FAILED);
3153 }
3154
3155
3156 /***********************************************************************
3157 * MsgWaitForMultipleObjectsEx (USER32.@)
3158 */
3159 DWORD WINAPI MsgWaitForMultipleObjectsEx( DWORD count, CONST HANDLE *pHandles,
3160 DWORD timeout, DWORD mask, DWORD flags )
3161 {
3162 HANDLE handles[MAXIMUM_WAIT_OBJECTS];
3163 DWORD i, ret, lock;
3164
3165 if (count > MAXIMUM_WAIT_OBJECTS-1)
3166 {
3167 SetLastError( ERROR_INVALID_PARAMETER );
3168 return WAIT_FAILED;
3169 }
3170
3171 /* set the queue mask */
3172 SERVER_START_REQ( set_queue_mask )
3173 {
3174 req->wake_mask = (flags & MWMO_INPUTAVAILABLE) ? mask : 0;
3175 req->changed_mask = mask;
3176 req->skip_wait = 0;
3177 wine_server_call( req );
3178 }
3179 SERVER_END_REQ;
3180
3181 /* Add the thread event to the handle list */
3182 for (i = 0; i < count; i++) handles[i] = pHandles[i];
3183 handles[count] = get_server_queue_handle();
3184
3185 ReleaseThunkLock( &lock );
3186 ret = USER_Driver->pMsgWaitForMultipleObjectsEx( count+1, handles, timeout, mask, flags );
3187 if (ret == count+1) ret = count; /* pretend the msg queue is ready */
3188 if (lock) RestoreThunkLock( lock );
3189 return ret;
3190 }
3191
3192
3193 /***********************************************************************
3194 * MsgWaitForMultipleObjects (USER32.@)
3195 */
3196 DWORD WINAPI MsgWaitForMultipleObjects( DWORD count, CONST HANDLE *handles,
3197 BOOL wait_all, DWORD timeout, DWORD mask )
3198 {
3199 return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
3200 wait_all ? MWMO_WAITALL : 0 );
3201 }
3202
3203
3204 /***********************************************************************
3205 * WaitForInputIdle (USER32.@)
3206 */
3207 DWORD WINAPI WaitForInputIdle( HANDLE hProcess, DWORD dwTimeOut )
3208 {
3209 DWORD start_time, elapsed, ret;
3210 HANDLE handles[2];
3211
3212 handles[0] = hProcess;
3213 SERVER_START_REQ( get_process_idle_event )
3214 {
3215 req->handle = hProcess;
3216 if (!(ret = wine_server_call_err( req ))) handles[1] = reply->event;
3217 }
3218 SERVER_END_REQ;
3219 if (ret) return WAIT_FAILED; /* error */
3220 if (!handles[1]) return 0; /* no event to wait on */
3221
3222 start_time = GetTickCount();
3223 elapsed = 0;
3224
3225 TRACE("waiting for %p\n", handles[1] );
3226 do
3227 {
3228 ret = MsgWaitForMultipleObjects ( 2, handles, FALSE, dwTimeOut - elapsed, QS_SENDMESSAGE );
3229 switch (ret)
3230 {
3231 case WAIT_OBJECT_0:
3232 return WAIT_FAILED;
3233 case WAIT_OBJECT_0+2:
3234 process_sent_messages();
3235 break;
3236 case WAIT_TIMEOUT:
3237 case WAIT_FAILED:
3238 TRACE("timeout or error\n");
3239 return ret;
3240 default:
3241 TRACE("finished\n");
3242 return 0;
3243 }
3244 if (dwTimeOut != INFINITE)
3245 {
3246 elapsed = GetTickCount() - start_time;
3247 if (elapsed > dwTimeOut)
3248 break;
3249 }
3250 }
3251 while (1);
3252
3253 return WAIT_TIMEOUT;
3254 }
3255
3256
3257 /***********************************************************************
3258 * UserYield (USER.332)
3259 */
3260 void WINAPI UserYield16(void)
3261 {
3262 DWORD count;
3263
3264 /* Handle sent messages */
3265 process_sent_messages();
3266
3267 /* Yield */
3268 ReleaseThunkLock(&count);
3269
3270 if (count)
3271 {
3272 RestoreThunkLock(count);
3273 /* Handle sent messages again */
3274 process_sent_messages();
3275 }
3276 }
3277
3278
3279 /***********************************************************************
3280 * RegisterWindowMessageA (USER32.@)
3281 * RegisterWindowMessage (USER.118)
3282 */
3283 UINT WINAPI RegisterWindowMessageA( LPCSTR str )
3284 {
3285 UINT ret = GlobalAddAtomA(str);
3286 TRACE("%s, ret=%x\n", str, ret);
3287 return ret;
3288 }
3289
3290
3291 /***********************************************************************
3292 * RegisterWindowMessageW (USER32.@)
3293 */
3294 UINT WINAPI RegisterWindowMessageW( LPCWSTR str )
3295 {
3296 UINT ret = GlobalAddAtomW(str);
3297 TRACE("%s ret=%x\n", debugstr_w(str), ret);
3298 return ret;
3299 }
3300
3301
3302 /***********************************************************************
3303 * BroadcastSystemMessageA (USER32.@)
3304 * BroadcastSystemMessage (USER32.@)
3305 */
3306 LONG WINAPI BroadcastSystemMessageA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3307 {
3308 if ((*recipients & BSM_APPLICATIONS) || (*recipients == BSM_ALLCOMPONENTS))
3309 {
3310 FIXME( "(%08x,%08x,%08x,%08x,%08lx): semi-stub!\n", flags, *recipients, msg, wp, lp );
3311 PostMessageA( HWND_BROADCAST, msg, wp, lp );
3312 return 1;
3313 }
3314 else
3315 {
3316 FIXME( "(%08x,%08x,%08x,%08x,%08lx): stub!\n", flags, *recipients, msg, wp, lp);
3317 return -1;
3318 }
3319 }
3320
3321
3322 /***********************************************************************
3323 * BroadcastSystemMessageW (USER32.@)
3324 */
3325 LONG WINAPI BroadcastSystemMessageW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3326 {
3327 if ((*recipients & BSM_APPLICATIONS) || (*recipients == BSM_ALLCOMPONENTS))
3328 {
3329 FIXME( "(%08x,%08x,%08x,%08x,%08lx): semi-stub!\n", flags, *recipients, msg, wp, lp );
3330 PostMessageW( HWND_BROADCAST, msg, wp, lp );
3331 return 1;
3332 }
3333 else
3334 {
3335 FIXME( "(%08x,%08x,%08x,%08x,%08lx): stub!\n", flags, *recipients, msg, wp, lp );
3336 return -1;
3337 }
3338 }
3339
3340
3341 /***********************************************************************
3342 * SetMessageQueue (USER32.@)
3343 */
3344 BOOL WINAPI SetMessageQueue( INT size )
3345 {
3346 /* now obsolete the message queue will be expanded dynamically as necessary */
3347 return TRUE;
3348 }
3349
3350
3351 /***********************************************************************
3352 * MessageBeep (USER32.@)
3353 */
3354 BOOL WINAPI MessageBeep( UINT i )
3355 {
3356 BOOL active = TRUE;
3357 SystemParametersInfoA( SPI_GETBEEP, 0, &active, FALSE );
3358 if (active) USER_Driver->pBeep();
3359 return TRUE;
3360 }
3361
3362
3363 /***********************************************************************
3364 * SetTimer (USER32.@)
3365 */
3366 UINT_PTR WINAPI SetTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3367 {
3368 UINT_PTR ret;
3369 WNDPROC winproc = 0;
3370
3371 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, NULL );
3372
3373 SERVER_START_REQ( set_win_timer )
3374 {
3375 req->win = hwnd;
3376 req->msg = WM_TIMER;
3377 req->id = id;
3378 req->rate = max( timeout, SYS_TIMER_RATE );
3379 req->lparam = (unsigned long)winproc;
3380 if (!wine_server_call_err( req ))
3381 {
3382 ret = reply->id;
3383 if (!ret) ret = TRUE;
3384 }
3385 else ret = 0;
3386 }
3387 SERVER_END_REQ;
3388
3389 TRACE("Added %p %x %p timeout %d\n", hwnd, id, winproc, timeout );
3390 return ret;
3391 }
3392
3393
3394 /***********************************************************************
3395 * SetSystemTimer (USER32.@)
3396 */
3397 UINT_PTR WINAPI SetSystemTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3398 {
3399 UINT_PTR ret;
3400 WNDPROC winproc = 0;
3401
3402 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, NULL );
3403
3404 SERVER_START_REQ( set_win_timer )
3405 {
3406 req->win = hwnd;
3407 req->msg = WM_SYSTIMER;
3408 req->id = id;
3409 req->rate = max( timeout, SYS_TIMER_RATE );
3410 req->lparam = (unsigned long)winproc;
3411 if (!wine_server_call_err( req ))
3412 {
3413 ret = reply->id;
3414 if (!ret) ret = TRUE;
3415 }
3416 else ret = 0;
3417 }
3418 SERVER_END_REQ;
3419
3420 TRACE("Added %p %x %p timeout %d\n", hwnd, id, winproc, timeout );
3421 return ret;
3422 }
3423
3424
3425 /***********************************************************************
3426 * KillTimer (USER32.@)
3427 */
3428 BOOL WINAPI KillTimer( HWND hwnd, UINT_PTR id )
3429 {
3430 BOOL ret;
3431
3432 TRACE("%p %d\n", hwnd, id );
3433
3434 SERVER_START_REQ( kill_win_timer )
3435 {
3436 req->win = hwnd;
3437 req->msg = WM_TIMER;
3438 req->id = id;
3439 ret = !wine_server_call_err( req );
3440 }
3441 SERVER_END_REQ;
3442 return ret;
3443 }
3444
3445
3446 /***********************************************************************
3447 * KillSystemTimer (USER32.@)
3448 */
3449 BOOL WINAPI KillSystemTimer( HWND hwnd, UINT_PTR id )
3450 {
3451 BOOL ret;
3452
3453 TRACE("%p %d\n", hwnd, id );
3454
3455 SERVER_START_REQ( kill_win_timer )
3456 {
3457 req->win = hwnd;
3458 req->msg = WM_SYSTIMER;
3459 req->id = id;
3460 ret = !wine_server_call_err( req );
3461 }
3462 SERVER_END_REQ;
3463 return ret;
3464 }
3465
3466
3467 /**********************************************************************
3468 * GetGUIThreadInfo (USER32.@)
3469 */
3470 BOOL WINAPI GetGUIThreadInfo( DWORD id, GUITHREADINFO *info )
3471 {
3472 BOOL ret;
3473
3474 SERVER_START_REQ( get_thread_input )
3475 {
3476 req->tid = id;
3477 if ((ret = !wine_server_call_err( req )))
3478 {
3479 info->flags = 0;
3480 info->hwndActive = reply->active;
3481 info->hwndFocus = reply->focus;
3482 info->hwndCapture = reply->capture;
3483 info->hwndMenuOwner = reply->menu_owner;
3484 info->hwndMoveSize = reply->move_size;
3485 info->hwndCaret = reply->caret;
3486 info->rcCaret.left = reply->rect.left;
3487 info->rcCaret.top = reply->rect.top;
3488 info->rcCaret.right = reply->rect.right;
3489 info->rcCaret.bottom = reply->rect.bottom;
3490 if (reply->menu_owner) info->flags |= GUI_INMENUMODE;
3491 if (reply->move_size) info->flags |= GUI_INMOVESIZE;
3492 if (reply->caret) info->flags |= GUI_CARETBLINKING;
3493 }
3494 }
3495 SERVER_END_REQ;
3496 return ret;
3497 }
3498
3499
3500 /******************************************************************
3501 * IsHungAppWindow (USER32.@)
3502 *
3503 */
3504 BOOL WINAPI IsHungAppWindow( HWND hWnd )
3505 {
3506 DWORD_PTR dwResult;
3507 return !SendMessageTimeoutA(hWnd, WM_NULL, 0, 0, SMTO_ABORTIFHUNG, 5000, &dwResult);
3508 }
GDI DIB driver