git.oblomov.eu Git - wine/blob - windows/message.c

   1 /*
   2  * Message queues related functions
   3  *
   4  * Copyright 1993, 1994 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <stdarg.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <ctype.h>
  28 #ifdef HAVE_SYS_TIME_H
  29 # include <sys/time.h>
  30 #endif
  31 #include <sys/types.h>
  32
  33 #include "windef.h"
  34 #include "winbase.h"
  35 #include "wingdi.h"
  36 #include "winuser.h"
  37 #include "message.h"
  38 #include "winerror.h"
  39 #include "ntstatus.h"
  40 #include "wine/server.h"
  41 #include "controls.h"
  42 #include "dde.h"
  43 #include "message.h"
  44 #include "user_private.h"
  45 #include "win.h"
  46 #include "winpos.h"
  47 #include "winproc.h"
  48 #include "wine/debug.h"
  49
  50 WINE_DEFAULT_DEBUG_CHANNEL(msg);
  51 WINE_DECLARE_DEBUG_CHANNEL(key);
  52
  53 #define WM_NCMOUSEFIRST         WM_NCMOUSEMOVE
  54 #define WM_NCMOUSELAST          WM_NCMBUTTONDBLCLK
  55
  56
  57 /***********************************************************************
  58  *           is_keyboard_message
  59  */
  60 inline static BOOL is_keyboard_message( UINT message )
  61 {
  62     return (message >= WM_KEYFIRST && message <= WM_KEYLAST);
  63 }
  64
  65
  66 /***********************************************************************
  67  *           is_mouse_message
  68  */
  69 inline static BOOL is_mouse_message( UINT message )
  70 {
  71     return ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) ||
  72             (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST));
  73 }
  74
  75
  76 /***********************************************************************
  77  *           check_message_filter
  78  */
  79 inline static BOOL check_message_filter( const MSG *msg, HWND hwnd, UINT first, UINT last )
  80 {
  81     if (hwnd)
  82     {
  83         if (msg->hwnd != hwnd && !IsChild( hwnd, msg->hwnd )) return FALSE;
  84     }
  85     if (first || last)
  86     {
  87        return (msg->message >= first && msg->message <= last);
  88     }
  89     return TRUE;
  90 }
  91
  92
  93 /***********************************************************************
  94  *           process_sent_messages
  95  *
  96  * Process all pending sent messages.
  97  */
  98 inline static void process_sent_messages(void)
  99 {
 100     MSG msg;
 101     MSG_peek_message( &msg, 0, 0, 0, GET_MSG_REMOVE | GET_MSG_SENT_ONLY );
 102 }
 103
 104
 105 /***********************************************************************
 106  *           queue_hardware_message
 107  *
 108  * store a hardware message in the thread queue
 109  */
 110 #if 0
 111 static void queue_hardware_message( MSG *msg, ULONG_PTR extra_info )
 112 {
 113     SERVER_START_REQ( send_message )
 114     {
 115         req->type   = MSG_HARDWARE;
 116         req->id     = GetWindowThreadProcessId( msg->hwnd, NULL );
 117         req->win    = msg->hwnd;
 118         req->msg    = msg->message;
 119         req->wparam = msg->wParam;
 120         req->lparam = msg->lParam;
 121         req->x      = msg->pt.x;
 122         req->y      = msg->pt.y;
 123         req->time   = msg->time;
 124         req->info   = extra_info;
 125         req->timeout = 0;
 126         wine_server_call( req );
 127     }
 128     SERVER_END_REQ;
 129 }
 130 #endif
 131
 132
 133 /***********************************************************************
 134  *           MSG_SendParentNotify
 135  *
 136  * Send a WM_PARENTNOTIFY to all ancestors of the given window, unless
 137  * the window has the WS_EX_NOPARENTNOTIFY style.
 138  */
 139 static void MSG_SendParentNotify( HWND hwnd, WORD event, WORD idChild, POINT pt )
 140 {
 141     /* pt has to be in the client coordinates of the parent window */
 142     MapWindowPoints( 0, hwnd, &pt, 1 );
 143     for (;;)
 144     {
 145         HWND parent;
 146
 147         if (!(GetWindowLongA( hwnd, GWL_STYLE ) & WS_CHILD)) break;
 148         if (GetWindowLongA( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) break;
 149         if (!(parent = GetParent(hwnd))) break;
 150         MapWindowPoints( hwnd, parent, &pt, 1 );
 151         hwnd = parent;
 152         SendMessageA( hwnd, WM_PARENTNOTIFY,
 153                       MAKEWPARAM( event, idChild ), MAKELPARAM( pt.x, pt.y ) );
 154     }
 155 }
 156
 157
 158 #if 0  /* this is broken for now, will require proper support in the server */
 159
 160 /***********************************************************************
 161  *          MSG_JournalPlayBackMsg
 162  *
 163  * Get an EVENTMSG struct via call JOURNALPLAYBACK hook function
 164  */
 165 void MSG_JournalPlayBackMsg(void)
 166 {
 167     EVENTMSG tmpMsg;
 168     MSG msg;
 169     LRESULT wtime;
 170     int keyDown,i;
 171
 172     wtime=HOOK_CallHooks( WH_JOURNALPLAYBACK, HC_GETNEXT, 0, (LPARAM)&tmpMsg, TRUE );
 173     /*  TRACE(msg,"Playback wait time =%ld\n",wtime); */
 174     if (wtime<=0)
 175     {
 176         wtime=0;
 177         msg.message = tmpMsg.message;
 178         msg.hwnd    = tmpMsg.hwnd;
 179         msg.time    = tmpMsg.time;
 180         if ((tmpMsg.message >= WM_KEYFIRST) && (tmpMsg.message <= WM_KEYLAST))
 181         {
 182             msg.wParam  = tmpMsg.paramL & 0xFF;
 183             msg.lParam  = MAKELONG(tmpMsg.paramH&0x7ffff,tmpMsg.paramL>>8);
 184             if (tmpMsg.message == WM_KEYDOWN || tmpMsg.message == WM_SYSKEYDOWN)
 185             {
 186                 for (keyDown=i=0; i<256 && !keyDown; i++)
 187                     if (InputKeyStateTable[i] & 0x80)
 188                         keyDown++;
 189                 if (!keyDown)
 190                     msg.lParam |= 0x40000000;
 191                 InputKeyStateTable[msg.wParam] |= 0x80;
 192                 AsyncKeyStateTable[msg.wParam] |= 0x80;
 193             }
 194             else                                       /* WM_KEYUP, WM_SYSKEYUP */
 195             {
 196                 msg.lParam |= 0xC0000000;
 197                 InputKeyStateTable[msg.wParam] &= ~0x80;
 198             }
 199             if (InputKeyStateTable[VK_MENU] & 0x80)
 200                 msg.lParam |= 0x20000000;
 201             if (tmpMsg.paramH & 0x8000)              /*special_key bit*/
 202                 msg.lParam |= 0x01000000;
 203
 204             msg.pt.x = msg.pt.y = 0;
 205             queue_hardware_message( &msg, 0 );
 206         }
 207         else if ((tmpMsg.message>= WM_MOUSEFIRST) && (tmpMsg.message <= WM_MOUSELAST))
 208         {
 209             switch (tmpMsg.message)
 210             {
 211             case WM_LBUTTONDOWN:
 212                 InputKeyStateTable[VK_LBUTTON] |= 0x80;
 213                 AsyncKeyStateTable[VK_LBUTTON] |= 0x80;
 214                 break;
 215             case WM_LBUTTONUP:
 216                 InputKeyStateTable[VK_LBUTTON] &= ~0x80;
 217                 break;
 218             case WM_MBUTTONDOWN:
 219                 InputKeyStateTable[VK_MBUTTON] |= 0x80;
 220                 AsyncKeyStateTable[VK_MBUTTON] |= 0x80;
 221                 break;
 222             case WM_MBUTTONUP:
 223                 InputKeyStateTable[VK_MBUTTON] &= ~0x80;
 224                 break;
 225             case WM_RBUTTONDOWN:
 226                 InputKeyStateTable[VK_RBUTTON] |= 0x80;
 227                 AsyncKeyStateTable[VK_RBUTTON] |= 0x80;
 228                 break;
 229             case WM_RBUTTONUP:
 230                 InputKeyStateTable[VK_RBUTTON] &= ~0x80;
 231                 break;
 232             }
 233             SetCursorPos(tmpMsg.paramL,tmpMsg.paramH);
 234             msg.lParam=MAKELONG(tmpMsg.paramL,tmpMsg.paramH);
 235             msg.wParam=0;
 236             if (InputKeyStateTable[VK_LBUTTON] & 0x80) msg.wParam |= MK_LBUTTON;
 237             if (InputKeyStateTable[VK_MBUTTON] & 0x80) msg.wParam |= MK_MBUTTON;
 238             if (InputKeyStateTable[VK_RBUTTON] & 0x80) msg.wParam |= MK_RBUTTON;
 239
 240             msg.pt.x = tmpMsg.paramL;
 241             msg.pt.y = tmpMsg.paramH;
 242             queue_hardware_message( &msg, 0 );
 243         }
 244         HOOK_CallHooks( WH_JOURNALPLAYBACK, HC_SKIP, 0, (LPARAM)&tmpMsg, TRUE );
 245     }
 246     else
 247     {
 248         if( tmpMsg.message == WM_QUEUESYNC ) HOOK_CallHooks( WH_CBT, HCBT_QS, 0, 0, TRUE );
 249     }
 250 }
 251 #endif
 252
 253
 254 /***********************************************************************
 255  *          process_raw_keyboard_message
 256  *
 257  * returns TRUE if the contents of 'msg' should be passed to the application
 258  */
 259 static void process_raw_keyboard_message( MSG *msg )
 260 {
 261     EVENTMSG event;
 262
 263     event.message = msg->message;
 264     event.hwnd    = msg->hwnd;
 265     event.time    = msg->time;
 266     event.paramL  = (msg->wParam & 0xFF) | (HIWORD(msg->lParam) << 8);
 267     event.paramH  = msg->lParam & 0x7FFF;
 268     if (HIWORD(msg->lParam) & 0x0100) event.paramH |= 0x8000; /* special_key - bit */
 269     HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
 270 }
 271
 272
 273 /***********************************************************************
 274  *          process_cooked_keyboard_message
 275  *
 276  * returns TRUE if the contents of 'msg' should be passed to the application
 277  */
 278 static BOOL process_cooked_keyboard_message( MSG *msg, BOOL remove )
 279 {
 280     if (remove)
 281     {
 282         /* Handle F1 key by sending out WM_HELP message */
 283         if ((msg->message == WM_KEYUP) &&
 284             (msg->wParam == VK_F1) &&
 285             (msg->hwnd != GetDesktopWindow()) &&
 286             !MENU_IsMenuActive())
 287         {
 288             HELPINFO hi;
 289             hi.cbSize = sizeof(HELPINFO);
 290             hi.iContextType = HELPINFO_WINDOW;
 291             hi.iCtrlId = GetWindowLongPtrA( msg->hwnd, GWLP_ID );
 292             hi.hItemHandle = msg->hwnd;
 293             hi.dwContextId = GetWindowContextHelpId( msg->hwnd );
 294             hi.MousePos = msg->pt;
 295             SendMessageA(msg->hwnd, WM_HELP, 0, (LPARAM)&hi);
 296         }
 297     }
 298
 299     if (HOOK_CallHooks( WH_KEYBOARD, remove ? HC_ACTION : HC_NOREMOVE,
 300                         LOWORD(msg->wParam), msg->lParam, TRUE ))
 301     {
 302         /* skip this message */
 303         HOOK_CallHooks( WH_CBT, HCBT_KEYSKIPPED, LOWORD(msg->wParam), msg->lParam, TRUE );
 304         return FALSE;
 305     }
 306     return TRUE;
 307 }
 308
 309
 310 /***********************************************************************
 311  *          process_raw_mouse_message
 312  */
 313 static void process_raw_mouse_message( MSG *msg, BOOL remove )
 314 {
 315     static MSG clk_msg;
 316
 317     POINT pt;
 318     INT hittest;
 319     EVENTMSG event;
 320     GUITHREADINFO info;
 321     HWND hWndScope = msg->hwnd;
 322
 323     /* find the window to dispatch this mouse message to */
 324
 325     hittest = HTCLIENT;
 326     GetGUIThreadInfo( GetCurrentThreadId(), &info );
 327     if (!(msg->hwnd = info.hwndCapture))
 328     {
 329         /* If no capture HWND, find window which contains the mouse position.
 330          * Also find the position of the cursor hot spot (hittest) */
 331         if (!IsWindow(hWndScope)) hWndScope = 0;
 332         if (!(msg->hwnd = WINPOS_WindowFromPoint( hWndScope, msg->pt, &hittest )))
 333             msg->hwnd = GetDesktopWindow();
 334     }
 335
 336     event.message = msg->message;
 337     event.time    = msg->time;
 338     event.hwnd    = msg->hwnd;
 339     event.paramL  = msg->pt.x;
 340     event.paramH  = msg->pt.y;
 341     HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
 342
 343     /* translate double clicks */
 344
 345     if ((msg->message == WM_LBUTTONDOWN) ||
 346         (msg->message == WM_RBUTTONDOWN) ||
 347         (msg->message == WM_MBUTTONDOWN))
 348     {
 349         BOOL update = remove;
 350         /* translate double clicks -
 351          * note that ...MOUSEMOVEs can slip in between
 352          * ...BUTTONDOWN and ...BUTTONDBLCLK messages */
 353
 354         if ((info.flags & (GUI_INMENUMODE|GUI_INMOVESIZE)) ||
 355             hittest != HTCLIENT ||
 356             (GetClassLongA( msg->hwnd, GCL_STYLE ) & CS_DBLCLKS))
 357         {
 358            if ((msg->message == clk_msg.message) &&
 359                (msg->hwnd == clk_msg.hwnd) &&
 360                (msg->time - clk_msg.time < GetDoubleClickTime()) &&
 361                (abs(msg->pt.x - clk_msg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
 362                (abs(msg->pt.y - clk_msg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
 363            {
 364                msg->message += (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
 365                if (remove)
 366                {
 367                    clk_msg.message = 0;
 368                    update = FALSE;
 369                }
 370            }
 371         }
 372         /* update static double click conditions */
 373         if (update) clk_msg = *msg;
 374     }
 375
 376     pt = msg->pt;
 377     /* Note: windows has no concept of a non-client wheel message */
 378     if (msg->message != WM_MOUSEWHEEL)
 379     {
 380         if (hittest != HTCLIENT)
 381         {
 382             msg->message += WM_NCMOUSEMOVE - WM_MOUSEMOVE;
 383             msg->wParam = hittest;
 384         }
 385         else
 386         {
 387             /* coordinates don't get translated while tracking a menu */
 388             /* FIXME: should differentiate popups and top-level menus */
 389             if (!(info.flags & GUI_INMENUMODE))
 390                 ScreenToClient( msg->hwnd, &pt );
 391         }
 392     }
 393     msg->lParam = MAKELONG( pt.x, pt.y );
 394 }
 395
 396
 397 /***********************************************************************
 398  *          process_cooked_mouse_message
 399  *
 400  * returns TRUE if the contents of 'msg' should be passed to the application
 401  */
 402 static BOOL process_cooked_mouse_message( MSG *msg, ULONG_PTR extra_info, BOOL remove )
 403 {
 404     MOUSEHOOKSTRUCT hook;
 405     INT hittest = HTCLIENT;
 406     UINT raw_message = msg->message;
 407     BOOL eatMsg;
 408
 409     if (msg->message >= WM_NCMOUSEFIRST && msg->message <= WM_NCMOUSELAST)
 410     {
 411         raw_message += WM_MOUSEFIRST - WM_NCMOUSEFIRST;
 412         hittest = msg->wParam;
 413     }
 414     if (raw_message == WM_LBUTTONDBLCLK ||
 415         raw_message == WM_RBUTTONDBLCLK ||
 416         raw_message == WM_MBUTTONDBLCLK)
 417     {
 418         raw_message += WM_LBUTTONDOWN - WM_LBUTTONDBLCLK;
 419     }
 420
 421     hook.pt           = msg->pt;
 422     hook.hwnd         = msg->hwnd;
 423     hook.wHitTestCode = hittest;
 424     hook.dwExtraInfo  = extra_info;
 425     if (HOOK_CallHooks( WH_MOUSE, remove ? HC_ACTION : HC_NOREMOVE,
 426                         msg->message, (LPARAM)&hook, TRUE ))
 427     {
 428         hook.pt           = msg->pt;
 429         hook.hwnd         = msg->hwnd;
 430         hook.wHitTestCode = hittest;
 431         hook.dwExtraInfo  = extra_info;
 432         HOOK_CallHooks( WH_CBT, HCBT_CLICKSKIPPED, msg->message, (LPARAM)&hook, TRUE );
 433         return FALSE;
 434     }
 435
 436     if ((hittest == HTERROR) || (hittest == HTNOWHERE))
 437     {
 438         SendMessageA( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd,
 439                       MAKELONG( hittest, raw_message ));
 440         return FALSE;
 441     }
 442
 443     if (!remove || GetCapture()) return TRUE;
 444
 445     eatMsg = FALSE;
 446
 447     if ((raw_message == WM_LBUTTONDOWN) ||
 448         (raw_message == WM_RBUTTONDOWN) ||
 449         (raw_message == WM_MBUTTONDOWN))
 450     {
 451         /* Send the WM_PARENTNOTIFY,
 452          * note that even for double/nonclient clicks
 453          * notification message is still WM_L/M/RBUTTONDOWN.
 454          */
 455         MSG_SendParentNotify( msg->hwnd, raw_message, 0, msg->pt );
 456
 457         /* Activate the window if needed */
 458
 459         if (msg->hwnd != GetActiveWindow())
 460         {
 461             HWND hwndTop = msg->hwnd;
 462             while (hwndTop)
 463             {
 464                 if ((GetWindowLongW( hwndTop, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) != WS_CHILD) break;
 465                 hwndTop = GetParent( hwndTop );
 466             }
 467
 468             if (hwndTop && hwndTop != GetDesktopWindow())
 469             {
 470                 LONG ret = SendMessageA( msg->hwnd, WM_MOUSEACTIVATE, (WPARAM)hwndTop,
 471                                          MAKELONG( hittest, raw_message ) );
 472                 switch(ret)
 473                 {
 474                 case MA_NOACTIVATEANDEAT:
 475                     eatMsg = TRUE;
 476                     /* fall through */
 477                 case MA_NOACTIVATE:
 478                     break;
 479                 case MA_ACTIVATEANDEAT:
 480                     eatMsg = TRUE;
 481                     /* fall through */
 482                 case MA_ACTIVATE:
 483                 case 0:
 484                     if (!FOCUS_MouseActivate( hwndTop )) eatMsg = TRUE;
 485                     break;
 486                 default:
 487                     WARN( "unknown WM_MOUSEACTIVATE code %ld\n", ret );
 488                     break;
 489                 }
 490             }
 491         }
 492     }
 493
 494     /* send the WM_SETCURSOR message */
 495
 496     /* Windows sends the normal mouse message as the message parameter
 497        in the WM_SETCURSOR message even if it's non-client mouse message */
 498     SendMessageA( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd,
 499                   MAKELONG( hittest, raw_message ));
 500
 501     return !eatMsg;
 502 }
 503
 504
 505 /***********************************************************************
 506  *          MSG_process_raw_hardware_message
 507  *
 508  * returns TRUE if the contents of 'msg' should be passed to the application
 509  */
 510 BOOL MSG_process_raw_hardware_message( MSG *msg, ULONG_PTR extra_info, HWND hwnd_filter,
 511                                        UINT first, UINT last, BOOL remove )
 512 {
 513     if (is_keyboard_message( msg->message ))
 514     {
 515         process_raw_keyboard_message( msg );
 516     }
 517     else if (is_mouse_message( msg->message ))
 518     {
 519         process_raw_mouse_message( msg, remove );
 520     }
 521     else
 522     {
 523         ERR( "unknown message type %x\n", msg->message );
 524         return FALSE;
 525     }
 526     return check_message_filter( msg, hwnd_filter, first, last );
 527 }
 528
 529
 530 /***********************************************************************
 531  *          MSG_process_cooked_hardware_message
 532  *
 533  * returns TRUE if the contents of 'msg' should be passed to the application
 534  */
 535 BOOL MSG_process_cooked_hardware_message( MSG *msg, ULONG_PTR extra_info, BOOL remove )
 536 {
 537     if (is_keyboard_message( msg->message ))
 538         return process_cooked_keyboard_message( msg, remove );
 539
 540     if (is_mouse_message( msg->message ))
 541         return process_cooked_mouse_message( msg, extra_info, remove );
 542
 543     ERR( "unknown message type %x\n", msg->message );
 544     return FALSE;
 545 }
 546
 547
 548 /***********************************************************************
 549  *              WaitMessage (USER.112) Suspend thread pending messages
 550  *              WaitMessage (USER32.@) Suspend thread pending messages
 551  *
 552  * WaitMessage() suspends a thread until events appear in the thread's
 553  * queue.
 554  */
 555 BOOL WINAPI WaitMessage(void)
 556 {
 557     return (MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, QS_ALLINPUT, 0 ) != WAIT_FAILED);
 558 }
 559
 560
 561 /***********************************************************************
 562  *              MsgWaitForMultipleObjectsEx   (USER32.@)
 563  */
 564 DWORD WINAPI MsgWaitForMultipleObjectsEx( DWORD count, CONST HANDLE *pHandles,
 565                                           DWORD timeout, DWORD mask, DWORD flags )
 566 {
 567     HANDLE handles[MAXIMUM_WAIT_OBJECTS];
 568     DWORD i, ret, lock;
 569     MESSAGEQUEUE *msgQueue;
 570
 571     if (count > MAXIMUM_WAIT_OBJECTS-1)
 572     {
 573         SetLastError( ERROR_INVALID_PARAMETER );
 574         return WAIT_FAILED;
 575     }
 576
 577     if (!(msgQueue = QUEUE_Current())) return WAIT_FAILED;
 578
 579     /* set the queue mask */
 580     SERVER_START_REQ( set_queue_mask )
 581     {
 582         req->wake_mask    = (flags & MWMO_INPUTAVAILABLE) ? mask : 0;
 583         req->changed_mask = mask;
 584         req->skip_wait    = 0;
 585         wine_server_call( req );
 586     }
 587     SERVER_END_REQ;
 588
 589     /* Add the thread event to the handle list */
 590     for (i = 0; i < count; i++) handles[i] = pHandles[i];
 591     handles[count] = msgQueue->server_queue;
 592
 593     ReleaseThunkLock( &lock );
 594     if (USER_Driver.pMsgWaitForMultipleObjectsEx)
 595     {
 596         ret = USER_Driver.pMsgWaitForMultipleObjectsEx( count+1, handles, timeout, mask, flags );
 597         if (ret == count+1) ret = count; /* pretend the msg queue is ready */
 598     }
 599     else
 600         ret = WaitForMultipleObjectsEx( count+1, handles, flags & MWMO_WAITALL,
 601                                         timeout, flags & MWMO_ALERTABLE );
 602     if (lock) RestoreThunkLock( lock );
 603     return ret;
 604 }
 605
 606
 607 /***********************************************************************
 608  *              MsgWaitForMultipleObjects (USER32.@)
 609  */
 610 DWORD WINAPI MsgWaitForMultipleObjects( DWORD count, CONST HANDLE *handles,
 611                                         BOOL wait_all, DWORD timeout, DWORD mask )
 612 {
 613     return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
 614                                         wait_all ? MWMO_WAITALL : 0 );
 615 }
 616
 617
 618 /***********************************************************************
 619  *              WaitForInputIdle (USER32.@)
 620  */
 621 DWORD WINAPI WaitForInputIdle( HANDLE hProcess, DWORD dwTimeOut )
 622 {
 623     DWORD start_time, elapsed, ret;
 624     HANDLE idle_event = (HANDLE)-1;
 625
 626     SERVER_START_REQ( wait_input_idle )
 627     {
 628         req->handle = hProcess;
 629         req->timeout = dwTimeOut;
 630         if (!(ret = wine_server_call_err( req ))) idle_event = reply->event;
 631     }
 632     SERVER_END_REQ;
 633     if (ret) return WAIT_FAILED;  /* error */
 634     if (!idle_event) return 0;  /* no event to wait on */
 635
 636     start_time = GetTickCount();
 637     elapsed = 0;
 638
 639     TRACE("waiting for %p\n", idle_event );
 640     do
 641     {
 642         ret = MsgWaitForMultipleObjects ( 1, &idle_event, FALSE, dwTimeOut - elapsed, QS_SENDMESSAGE );
 643         switch (ret)
 644         {
 645         case WAIT_OBJECT_0+1:
 646             process_sent_messages();
 647             break;
 648         case WAIT_TIMEOUT:
 649         case WAIT_FAILED:
 650             TRACE("timeout or error\n");
 651             return ret;
 652         default:
 653             TRACE("finished\n");
 654             return 0;
 655         }
 656         if (dwTimeOut != INFINITE)
 657         {
 658             elapsed = GetTickCount() - start_time;
 659             if (elapsed > dwTimeOut)
 660                 break;
 661         }
 662     }
 663     while (1);
 664
 665     return WAIT_TIMEOUT;
 666 }
 667
 668
 669 /***********************************************************************
 670  *              UserYield (USER.332)
 671  */
 672 void WINAPI UserYield16(void)
 673 {
 674    DWORD count;
 675
 676     /* Handle sent messages */
 677     process_sent_messages();
 678
 679     /* Yield */
 680     ReleaseThunkLock(&count);
 681     if (count)
 682     {
 683         RestoreThunkLock(count);
 684         /* Handle sent messages again */
 685         process_sent_messages();
 686     }
 687 }
 688
 689
 690 /***********************************************************************
 691  *              RegisterWindowMessage (USER.118)
 692  *              RegisterWindowMessageA (USER32.@)
 693  */
 694 WORD WINAPI RegisterWindowMessageA( LPCSTR str )
 695 {
 696     TRACE("%s\n", str );
 697     return GlobalAddAtomA( str );
 698 }
 699
 700
 701 /***********************************************************************
 702  *              RegisterWindowMessageW (USER32.@)
 703  */
 704 WORD WINAPI RegisterWindowMessageW( LPCWSTR str )
 705 {
 706     TRACE("%p\n", str );
 707     return GlobalAddAtomW( str );
 708 }
 709
 710
 711 /***********************************************************************
 712  *              BroadcastSystemMessage  (USER32.@)
 713  *              BroadcastSystemMessageA (USER32.@)
 714  */
 715 LONG WINAPI BroadcastSystemMessageA(
 716         DWORD dwFlags,LPDWORD recipients,UINT uMessage,WPARAM wParam,
 717         LPARAM lParam )
 718 {
 719     if ((*recipients & BSM_APPLICATIONS)||
 720         (*recipients == BSM_ALLCOMPONENTS))
 721     {
 722         FIXME("(%08lx,%08lx,%08x,%08x,%08lx): semi-stub!\n",
 723               dwFlags,*recipients,uMessage,wParam,lParam);
 724         PostMessageA(HWND_BROADCAST,uMessage,wParam,lParam);
 725         return 1;
 726     }
 727     else
 728     {
 729         FIXME("(%08lx,%08lx,%08x,%08x,%08lx): stub!\n",
 730               dwFlags,*recipients,uMessage,wParam,lParam);
 731         return -1;
 732     }
 733 }
 734
 735 /***********************************************************************
 736  *              BroadcastSystemMessageW (USER32.@)
 737  */
 738 LONG WINAPI BroadcastSystemMessageW(
 739         DWORD dwFlags,LPDWORD recipients,UINT uMessage,WPARAM wParam,
 740         LPARAM lParam )
 741 {
 742     if ((*recipients & BSM_APPLICATIONS)||
 743         (*recipients == BSM_ALLCOMPONENTS))
 744     {
 745         FIXME("(%08lx,%08lx,%08x,%08x,%08lx): semi-stub!\n",
 746               dwFlags,*recipients,uMessage,wParam,lParam);
 747         PostMessageW(HWND_BROADCAST,uMessage,wParam,lParam);
 748         return 1;
 749     }
 750     else
 751     {
 752         FIXME("(%08lx,%08lx,%08x,%08x,%08lx): stub!\n",
 753               dwFlags,*recipients,uMessage,wParam,lParam);
 754         return -1;
 755     }
 756 }