windows/message.c

   1 /*
   2  * Message queues related functions
   3  *
   4  * Copyright 1993, 1994 Alexandre Julliard
   5  */
   6
   7 #include <stdlib.h>
   8 #include <string.h>
   9 #include <ctype.h>
  10 #include <sys/time.h>
  11 #include <sys/types.h>
  12
  13 #include "winbase.h"
  14 #include "wingdi.h"
  15 #include "winuser.h"
  16 #include "message.h"
  17 #include "winerror.h"
  18 #include "wine/server.h"
  19 #include "win.h"
  20 #include "heap.h"
  21 #include "hook.h"
  22 #include "input.h"
  23 #include "spy.h"
  24 #include "winpos.h"
  25 #include "dde.h"
  26 #include "queue.h"
  27 #include "winproc.h"
  28 #include "user.h"
  29 #include "thread.h"
  30 #include "task.h"
  31 #include "controls.h"
  32 #include "debugtools.h"
  33
  34 DEFAULT_DEBUG_CHANNEL(msg);
  35 DECLARE_DEBUG_CHANNEL(key);
  36
  37 #define WM_NCMOUSEFIRST         WM_NCMOUSEMOVE
  38 #define WM_NCMOUSELAST          WM_NCMBUTTONDBLCLK
  39
  40 static UINT doubleClickSpeed = 452;
  41
  42
  43 /***********************************************************************
  44  *           is_keyboard_message
  45  */
  46 inline static BOOL is_keyboard_message( UINT message )
  47 {
  48     return (message >= WM_KEYFIRST && message <= WM_KEYLAST);
  49 }
  50
  51
  52 /***********************************************************************
  53  *           is_mouse_message
  54  */
  55 inline static BOOL is_mouse_message( UINT message )
  56 {
  57     return ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) ||
  58             (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST));
  59 }
  60
  61
  62 /***********************************************************************
  63  *           check_message_filter
  64  */
  65 inline static BOOL check_message_filter( const MSG *msg, HWND hwnd, UINT first, UINT last )
  66 {
  67     if (hwnd)
  68     {
  69         if (msg->hwnd != hwnd && !IsChild( hwnd, msg->hwnd )) return FALSE;
  70     }
  71     if (first || last)
  72     {
  73        return (msg->message >= first && msg->message <= last);
  74     }
  75     return TRUE;
  76 }
  77
  78
  79 /***********************************************************************
  80  *           process_sent_messages
  81  *
  82  * Process all pending sent messages.
  83  */
  84 inline static void process_sent_messages(void)
  85 {
  86     MSG msg;
  87     MSG_peek_message( &msg, 0, 0, 0, GET_MSG_REMOVE | GET_MSG_SENT_ONLY );
  88 }
  89
  90
  91 /***********************************************************************
  92  *           queue_hardware_message
  93  *
  94  * store a hardware message in the thread queue
  95  */
  96 static void queue_hardware_message( MSG *msg, ULONG_PTR extra_info, enum message_type type )
  97 {
  98     SERVER_START_REQ( send_message )
  99     {
 100         req->type   = type;
 101         req->id     = (void *)GetWindowThreadProcessId( msg->hwnd, NULL );
 102         req->win    = msg->hwnd;
 103         req->msg    = msg->message;
 104         req->wparam = msg->wParam;
 105         req->lparam = msg->lParam;
 106         req->x      = msg->pt.x;
 107         req->y      = msg->pt.y;
 108         req->time   = msg->time;
 109         req->info   = extra_info;
 110         req->timeout = 0;
 111         SERVER_CALL();
 112     }
 113     SERVER_END_REQ;
 114 }
 115
 116
 117 /***********************************************************************
 118  *           MSG_SendParentNotify
 119  *
 120  * Send a WM_PARENTNOTIFY to all ancestors of the given window, unless
 121  * the window has the WS_EX_NOPARENTNOTIFY style.
 122  */
 123 static void MSG_SendParentNotify( HWND hwnd, WORD event, WORD idChild, POINT pt )
 124 {
 125     /* pt has to be in the client coordinates of the parent window */
 126     MapWindowPoints( 0, hwnd, &pt, 1 );
 127     for (;;)
 128     {
 129         HWND parent;
 130
 131         if (!(GetWindowLongA( hwnd, GWL_STYLE ) & WS_CHILD)) break;
 132         if (GetWindowLongA( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) break;
 133         if (!(parent = GetParent(hwnd))) break;
 134         MapWindowPoints( hwnd, parent, &pt, 1 );
 135         hwnd = parent;
 136         SendMessageA( hwnd, WM_PARENTNOTIFY,
 137                       MAKEWPARAM( event, idChild ), MAKELPARAM( pt.x, pt.y ) );
 138     }
 139 }
 140
 141
 142 /***********************************************************************
 143  *          MSG_JournalPlayBackMsg
 144  *
 145  * Get an EVENTMSG struct via call JOURNALPLAYBACK hook function
 146  */
 147 void MSG_JournalPlayBackMsg(void)
 148 {
 149     EVENTMSG tmpMsg;
 150     MSG msg;
 151     LRESULT wtime;
 152     int keyDown,i;
 153
 154     if (!HOOK_IsHooked( WH_JOURNALPLAYBACK )) return;
 155
 156     wtime=HOOK_CallHooksA( WH_JOURNALPLAYBACK, HC_GETNEXT, 0, (LPARAM)&tmpMsg );
 157     /*  TRACE(msg,"Playback wait time =%ld\n",wtime); */
 158     if (wtime<=0)
 159     {
 160         wtime=0;
 161         msg.message = tmpMsg.message;
 162         msg.hwnd    = tmpMsg.hwnd;
 163         msg.time    = tmpMsg.time;
 164         if ((tmpMsg.message >= WM_KEYFIRST) && (tmpMsg.message <= WM_KEYLAST))
 165         {
 166             msg.wParam  = tmpMsg.paramL & 0xFF;
 167             msg.lParam  = MAKELONG(tmpMsg.paramH&0x7ffff,tmpMsg.paramL>>8);
 168             if (tmpMsg.message == WM_KEYDOWN || tmpMsg.message == WM_SYSKEYDOWN)
 169             {
 170                 for (keyDown=i=0; i<256 && !keyDown; i++)
 171                     if (InputKeyStateTable[i] & 0x80)
 172                         keyDown++;
 173                 if (!keyDown)
 174                     msg.lParam |= 0x40000000;
 175                 AsyncKeyStateTable[msg.wParam]=InputKeyStateTable[msg.wParam] |= 0x80;
 176             }
 177             else                                       /* WM_KEYUP, WM_SYSKEYUP */
 178             {
 179                 msg.lParam |= 0xC0000000;
 180                 AsyncKeyStateTable[msg.wParam]=InputKeyStateTable[msg.wParam] &= ~0x80;
 181             }
 182             if (InputKeyStateTable[VK_MENU] & 0x80)
 183                 msg.lParam |= 0x20000000;
 184             if (tmpMsg.paramH & 0x8000)              /*special_key bit*/
 185                 msg.lParam |= 0x01000000;
 186
 187             msg.pt.x = msg.pt.y = 0;
 188             queue_hardware_message( &msg, 0, MSG_HARDWARE_RAW );
 189         }
 190         else if ((tmpMsg.message>= WM_MOUSEFIRST) && (tmpMsg.message <= WM_MOUSELAST))
 191         {
 192             switch (tmpMsg.message)
 193             {
 194             case WM_LBUTTONDOWN:
 195                 MouseButtonsStates[0]=AsyncMouseButtonsStates[0]=TRUE;break;
 196             case WM_LBUTTONUP:
 197                 MouseButtonsStates[0]=AsyncMouseButtonsStates[0]=FALSE;break;
 198             case WM_MBUTTONDOWN:
 199                 MouseButtonsStates[1]=AsyncMouseButtonsStates[1]=TRUE;break;
 200             case WM_MBUTTONUP:
 201                 MouseButtonsStates[1]=AsyncMouseButtonsStates[1]=FALSE;break;
 202             case WM_RBUTTONDOWN:
 203                 MouseButtonsStates[2]=AsyncMouseButtonsStates[2]=TRUE;break;
 204             case WM_RBUTTONUP:
 205                 MouseButtonsStates[2]=AsyncMouseButtonsStates[2]=FALSE;break;
 206             }
 207             AsyncKeyStateTable[VK_LBUTTON]= InputKeyStateTable[VK_LBUTTON] = MouseButtonsStates[0] ? 0x80 : 0;
 208             AsyncKeyStateTable[VK_MBUTTON]= InputKeyStateTable[VK_MBUTTON] = MouseButtonsStates[1] ? 0x80 : 0;
 209             AsyncKeyStateTable[VK_RBUTTON]= InputKeyStateTable[VK_RBUTTON] = MouseButtonsStates[2] ? 0x80 : 0;
 210             SetCursorPos(tmpMsg.paramL,tmpMsg.paramH);
 211             msg.lParam=MAKELONG(tmpMsg.paramL,tmpMsg.paramH);
 212             msg.wParam=0;
 213             if (MouseButtonsStates[0]) msg.wParam |= MK_LBUTTON;
 214             if (MouseButtonsStates[1]) msg.wParam |= MK_MBUTTON;
 215             if (MouseButtonsStates[2]) msg.wParam |= MK_RBUTTON;
 216
 217             msg.pt.x = tmpMsg.paramL;
 218             msg.pt.y = tmpMsg.paramH;
 219             queue_hardware_message( &msg, 0, MSG_HARDWARE_RAW );
 220         }
 221         HOOK_CallHooksA( WH_JOURNALPLAYBACK, HC_SKIP, 0, (LPARAM)&tmpMsg);
 222     }
 223     else
 224     {
 225         if( tmpMsg.message == WM_QUEUESYNC )
 226             if (HOOK_IsHooked( WH_CBT ))
 227                 HOOK_CallHooksA( WH_CBT, HCBT_QS, 0, 0L);
 228     }
 229 }
 230
 231
 232 /***********************************************************************
 233  *          process_raw_keyboard_message
 234  *
 235  * returns TRUE if the contents of 'msg' should be passed to the application
 236  */
 237 static BOOL process_raw_keyboard_message( MSG *msg, ULONG_PTR extra_info )
 238 {
 239     if (!(msg->hwnd = GetFocus()))
 240     {
 241         /* Send the message to the active window instead,  */
 242         /* translating messages to their WM_SYS equivalent */
 243         msg->hwnd = GetActiveWindow();
 244         if (msg->message < WM_SYSKEYDOWN) msg->message += WM_SYSKEYDOWN - WM_KEYDOWN;
 245     }
 246
 247     if (HOOK_IsHooked( WH_JOURNALRECORD ))
 248     {
 249         EVENTMSG event;
 250
 251         event.message = msg->message;
 252         event.hwnd    = msg->hwnd;
 253         event.time    = msg->time;
 254         event.paramL  = (msg->wParam & 0xFF) | (HIWORD(msg->lParam) << 8);
 255         event.paramH  = msg->lParam & 0x7FFF;
 256         if (HIWORD(msg->lParam) & 0x0100) event.paramH |= 0x8000; /* special_key - bit */
 257         HOOK_CallHooksA( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event );
 258     }
 259
 260     return (msg->hwnd != 0);
 261 }
 262
 263
 264 /***********************************************************************
 265  *          process_cooked_keyboard_message
 266  *
 267  * returns TRUE if the contents of 'msg' should be passed to the application
 268  */
 269 static BOOL process_cooked_keyboard_message( MSG *msg, BOOL remove )
 270 {
 271     if (remove)
 272     {
 273         /* Handle F1 key by sending out WM_HELP message */
 274         if ((msg->message == WM_KEYUP) &&
 275             (msg->wParam == VK_F1) &&
 276             (msg->hwnd != GetDesktopWindow()) &&
 277             !MENU_IsMenuActive())
 278         {
 279             HELPINFO hi;
 280             hi.cbSize = sizeof(HELPINFO);
 281             hi.iContextType = HELPINFO_WINDOW;
 282             hi.iCtrlId = GetWindowLongA( msg->hwnd, GWL_ID );
 283             hi.hItemHandle = msg->hwnd;
 284             hi.dwContextId = GetWindowContextHelpId( msg->hwnd );
 285             hi.MousePos = msg->pt;
 286             SendMessageA(msg->hwnd, WM_HELP, 0, (LPARAM)&hi);
 287         }
 288     }
 289
 290     if (HOOK_CallHooksA( WH_KEYBOARD, remove ? HC_ACTION : HC_NOREMOVE,
 291                          LOWORD(msg->wParam), msg->lParam ))
 292     {
 293         /* skip this message */
 294         HOOK_CallHooksA( WH_CBT, HCBT_KEYSKIPPED, LOWORD(msg->wParam), msg->lParam );
 295         return FALSE;
 296     }
 297     return TRUE;
 298 }
 299
 300
 301 /***********************************************************************
 302  *          process_raw_mouse_message
 303  *
 304  * returns TRUE if the contents of 'msg' should be passed to the application
 305  */
 306 static BOOL process_raw_mouse_message( MSG *msg, ULONG_PTR extra_info )
 307 {
 308     static MSG clk_msg;
 309
 310     POINT pt;
 311     INT ht, hittest;
 312
 313     /* find the window to dispatch this mouse message to */
 314
 315     hittest = HTCLIENT;
 316     if (!(msg->hwnd = PERQDATA_GetCaptureWnd( &ht )))
 317     {
 318         /* If no capture HWND, find window which contains the mouse position.
 319          * Also find the position of the cursor hot spot (hittest) */
 320         HWND hWndScope = (HWND)extra_info;
 321
 322         if (!IsWindow(hWndScope)) hWndScope = 0;
 323         if (!(msg->hwnd = WINPOS_WindowFromPoint( hWndScope, msg->pt, &hittest )))
 324             msg->hwnd = GetDesktopWindow();
 325         ht = hittest;
 326     }
 327
 328     if (HOOK_IsHooked( WH_JOURNALRECORD ))
 329     {
 330         EVENTMSG event;
 331         event.message = msg->message;
 332         event.time    = msg->time;
 333         event.hwnd    = msg->hwnd;
 334         event.paramL  = msg->pt.x;
 335         event.paramH  = msg->pt.y;
 336         HOOK_CallHooksA( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event );
 337     }
 338
 339     /* translate double clicks */
 340
 341     if ((msg->message == WM_LBUTTONDOWN) ||
 342         (msg->message == WM_RBUTTONDOWN) ||
 343         (msg->message == WM_MBUTTONDOWN))
 344     {
 345         BOOL update = TRUE;
 346         /* translate double clicks -
 347          * note that ...MOUSEMOVEs can slip in between
 348          * ...BUTTONDOWN and ...BUTTONDBLCLK messages */
 349
 350         if (GetClassLongA( msg->hwnd, GCL_STYLE ) & CS_DBLCLKS || ht != HTCLIENT )
 351         {
 352            if ((msg->message == clk_msg.message) &&
 353                (msg->hwnd == clk_msg.hwnd) &&
 354                (msg->time - clk_msg.time < doubleClickSpeed) &&
 355                (abs(msg->pt.x - clk_msg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
 356                (abs(msg->pt.y - clk_msg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
 357            {
 358                msg->message += (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
 359                clk_msg.message = 0;
 360                update = FALSE;
 361            }
 362         }
 363         /* update static double click conditions */
 364         if (update) clk_msg = *msg;
 365     }
 366
 367     pt = msg->pt;
 368     /* Note: windows has no concept of a non-client wheel message */
 369     if (hittest != HTCLIENT && msg->message != WM_MOUSEWHEEL)
 370     {
 371         msg->message += WM_NCMOUSEMOVE - WM_MOUSEMOVE;
 372         msg->wParam = hittest;
 373     }
 374     else ScreenToClient( msg->hwnd, &pt );
 375     msg->lParam = MAKELONG( pt.x, pt.y );
 376     return TRUE;
 377 }
 378
 379
 380 /***********************************************************************
 381  *          process_cooked_mouse_message
 382  *
 383  * returns TRUE if the contents of 'msg' should be passed to the application
 384  */
 385 static BOOL process_cooked_mouse_message( MSG *msg, BOOL remove )
 386 {
 387     INT hittest = HTCLIENT;
 388     UINT raw_message = msg->message;
 389     BOOL eatMsg;
 390
 391     if (msg->message >= WM_NCMOUSEFIRST && msg->message <= WM_NCMOUSELAST)
 392     {
 393         raw_message += WM_MOUSEFIRST - WM_NCMOUSEFIRST;
 394         hittest = msg->wParam;
 395     }
 396     if (raw_message == WM_LBUTTONDBLCLK ||
 397         raw_message == WM_RBUTTONDBLCLK ||
 398         raw_message == WM_MBUTTONDBLCLK)
 399     {
 400         raw_message += WM_LBUTTONDOWN - WM_LBUTTONDBLCLK;
 401     }
 402
 403     if (HOOK_IsHooked( WH_MOUSE ))
 404     {
 405         MOUSEHOOKSTRUCT hook;
 406         hook.pt           = msg->pt;
 407         hook.hwnd         = msg->hwnd;
 408         hook.wHitTestCode = hittest;
 409         hook.dwExtraInfo  = 0;
 410         if (HOOK_CallHooksA( WH_MOUSE, remove ? HC_ACTION : HC_NOREMOVE,
 411                              msg->message, (LPARAM)&hook ))
 412         {
 413             hook.pt           = msg->pt;
 414             hook.hwnd         = msg->hwnd;
 415             hook.wHitTestCode = hittest;
 416             hook.dwExtraInfo  = 0;
 417             HOOK_CallHooksA( WH_CBT, HCBT_CLICKSKIPPED, msg->message, (LPARAM)&hook );
 418             return FALSE;
 419         }
 420     }
 421
 422     if ((hittest == HTERROR) || (hittest == HTNOWHERE))
 423     {
 424         SendMessageA( msg->hwnd, WM_SETCURSOR, msg->hwnd, MAKELONG( hittest, raw_message ));
 425         return FALSE;
 426     }
 427
 428     if (!remove || GetCapture()) return TRUE;
 429
 430     eatMsg = FALSE;
 431
 432     if ((raw_message == WM_LBUTTONDOWN) ||
 433         (raw_message == WM_RBUTTONDOWN) ||
 434         (raw_message == WM_MBUTTONDOWN))
 435     {
 436         HWND hwndTop = GetAncestor( msg->hwnd, GA_ROOT );
 437
 438         /* Send the WM_PARENTNOTIFY,
 439          * note that even for double/nonclient clicks
 440          * notification message is still WM_L/M/RBUTTONDOWN.
 441          */
 442         MSG_SendParentNotify( msg->hwnd, raw_message, 0, msg->pt );
 443
 444         /* Activate the window if needed */
 445
 446         if (msg->hwnd != GetActiveWindow() && hwndTop != GetDesktopWindow())
 447         {
 448             LONG ret = SendMessageA( msg->hwnd, WM_MOUSEACTIVATE, hwndTop,
 449                                      MAKELONG( hittest, raw_message ) );
 450
 451             switch(ret)
 452             {
 453             case MA_NOACTIVATEANDEAT:
 454                 eatMsg = TRUE;
 455                 /* fall through */
 456             case MA_NOACTIVATE:
 457                 break;
 458             case MA_ACTIVATEANDEAT:
 459                 eatMsg = TRUE;
 460                 /* fall through */
 461             case MA_ACTIVATE:
 462                 if (hwndTop != GetForegroundWindow() )
 463                 {
 464                     if (!WINPOS_SetActiveWindow( hwndTop, TRUE , TRUE ))
 465                         eatMsg = TRUE;
 466                 }
 467                 break;
 468             default:
 469                 WARN( "unknown WM_MOUSEACTIVATE code %ld\n", ret );
 470                 break;
 471             }
 472         }
 473     }
 474
 475     /* send the WM_SETCURSOR message */
 476
 477     /* Windows sends the normal mouse message as the message parameter
 478        in the WM_SETCURSOR message even if it's non-client mouse message */
 479     SendMessageA( msg->hwnd, WM_SETCURSOR, msg->hwnd, MAKELONG( hittest, raw_message ));
 480
 481     return !eatMsg;
 482 }
 483
 484
 485 /***********************************************************************
 486  *          process_hardware_message
 487  *
 488  * returns TRUE if the contents of 'msg' should be passed to the application
 489  */
 490 BOOL MSG_process_raw_hardware_message( MSG *msg, ULONG_PTR extra_info, HWND hwnd_filter,
 491                                        UINT first, UINT last, BOOL remove )
 492 {
 493     if (is_keyboard_message( msg->message ))
 494     {
 495         if (!process_raw_keyboard_message( msg, extra_info )) return FALSE;
 496     }
 497     else if (is_mouse_message( msg->message ))
 498     {
 499         if (!process_raw_mouse_message( msg, extra_info )) return FALSE;
 500     }
 501     else
 502     {
 503         ERR( "unknown message type %x\n", msg->message );
 504         return FALSE;
 505     }
 506
 507     /* check destination thread and filters */
 508     if (!check_message_filter( msg, hwnd_filter, first, last ) ||
 509         GetWindowThreadProcessId( msg->hwnd, NULL ) != GetCurrentThreadId())
 510     {
 511         /* queue it for later, or for another thread */
 512         queue_hardware_message( msg, extra_info, MSG_HARDWARE_COOKED );
 513         return FALSE;
 514     }
 515
 516     /* save the message in the cooked queue if we didn't want to remove it */
 517     if (!remove) queue_hardware_message( msg, extra_info, MSG_HARDWARE_COOKED );
 518     return TRUE;
 519 }
 520
 521
 522 /***********************************************************************
 523  *          MSG_process_cooked_hardware_message
 524  *
 525  * returns TRUE if the contents of 'msg' should be passed to the application
 526  */
 527 BOOL MSG_process_cooked_hardware_message( MSG *msg, BOOL remove )
 528 {
 529     if (is_keyboard_message( msg->message ))
 530         return process_cooked_keyboard_message( msg, remove );
 531
 532     if (is_mouse_message( msg->message ))
 533         return process_cooked_mouse_message( msg, remove );
 534
 535     ERR( "unknown message type %x\n", msg->message );
 536     return FALSE;
 537 }
 538
 539
 540 /**********************************************************************
 541  *              SetDoubleClickTime (USER32.@)
 542  */
 543 BOOL WINAPI SetDoubleClickTime( UINT interval )
 544 {
 545     doubleClickSpeed = interval ? interval : 500;
 546     return TRUE;
 547 }
 548
 549
 550 /**********************************************************************
 551  *              GetDoubleClickTime (USER32.@)
 552  */
 553 UINT WINAPI GetDoubleClickTime(void)
 554 {
 555     return doubleClickSpeed;
 556 }
 557
 558
 559 /***********************************************************************
 560  *              WaitMessage (USER.112) Suspend thread pending messages
 561  *              WaitMessage (USER32.@) Suspend thread pending messages
 562  *
 563  * WaitMessage() suspends a thread until events appear in the thread's
 564  * queue.
 565  */
 566 BOOL WINAPI WaitMessage(void)
 567 {
 568     return (MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, QS_ALLINPUT, 0 ) != WAIT_FAILED);
 569 }
 570
 571
 572 /***********************************************************************
 573  *              MsgWaitForMultipleObjectsEx   (USER32.@)
 574  */
 575 DWORD WINAPI MsgWaitForMultipleObjectsEx( DWORD count, CONST HANDLE *pHandles,
 576                                           DWORD timeout, DWORD mask, DWORD flags )
 577 {
 578     HANDLE handles[MAXIMUM_WAIT_OBJECTS];
 579     DWORD i, ret;
 580     MESSAGEQUEUE *msgQueue;
 581
 582     if (count > MAXIMUM_WAIT_OBJECTS-1)
 583     {
 584         SetLastError( ERROR_INVALID_PARAMETER );
 585         return WAIT_FAILED;
 586     }
 587
 588     if (!(msgQueue = QUEUE_Current())) return WAIT_FAILED;
 589
 590     /* set the queue mask */
 591     SERVER_START_REQ( set_queue_mask )
 592     {
 593         req->wake_mask    = (flags & MWMO_INPUTAVAILABLE) ? mask : 0;
 594         req->changed_mask = mask;
 595         req->skip_wait    = 0;
 596         SERVER_CALL();
 597     }
 598     SERVER_END_REQ;
 599
 600     /* Add the thread event to the handle list */
 601     for (i = 0; i < count; i++) handles[i] = pHandles[i];
 602     handles[count] = msgQueue->server_queue;
 603
 604
 605     if (USER_Driver.pMsgWaitForMultipleObjectsEx)
 606     {
 607         ret = USER_Driver.pMsgWaitForMultipleObjectsEx( count+1, handles, timeout, mask, flags );
 608         if (ret == count+1) ret = count; /* pretend the msg queue is ready */
 609     }
 610     else
 611         ret = WaitForMultipleObjectsEx( count+1, handles, flags & MWMO_WAITALL,
 612                                         timeout, flags & MWMO_ALERTABLE );
 613     return ret;
 614 }
 615
 616
 617 /***********************************************************************
 618  *              MsgWaitForMultipleObjects (USER32.@)
 619  */
 620 DWORD WINAPI MsgWaitForMultipleObjects( DWORD count, CONST HANDLE *handles,
 621                                         BOOL wait_all, DWORD timeout, DWORD mask )
 622 {
 623     return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
 624                                         wait_all ? MWMO_WAITALL : 0 );
 625 }
 626
 627
 628 /***********************************************************************
 629  *              WaitForInputIdle (USER32.@)
 630  */
 631 DWORD WINAPI WaitForInputIdle( HANDLE hProcess, DWORD dwTimeOut )
 632 {
 633     DWORD cur_time, ret;
 634     HANDLE idle_event = -1;
 635
 636     SERVER_START_REQ( wait_input_idle )
 637     {
 638         req->handle = hProcess;
 639         req->timeout = dwTimeOut;
 640         if (!(ret = SERVER_CALL_ERR())) idle_event = req->event;
 641     }
 642     SERVER_END_REQ;
 643     if (ret) return 0xffffffff;  /* error */
 644     if (!idle_event) return 0;  /* no event to wait on */
 645
 646     cur_time = GetTickCount();
 647
 648     TRACE("waiting for %x\n", idle_event );
 649     while ( dwTimeOut > GetTickCount() - cur_time || dwTimeOut == INFINITE )
 650     {
 651         ret = MsgWaitForMultipleObjects ( 1, &idle_event, FALSE, dwTimeOut, QS_SENDMESSAGE );
 652         if ( ret == ( WAIT_OBJECT_0 + 1 ))
 653         {
 654             process_sent_messages();
 655             continue;
 656         }
 657         if ( ret == WAIT_TIMEOUT || ret == 0xFFFFFFFF )
 658         {
 659             TRACE("timeout or error\n");
 660             return ret;
 661         }
 662         else
 663         {
 664             TRACE("finished\n");
 665             return 0;
 666         }
 667     }
 668
 669     return WAIT_TIMEOUT;
 670 }
 671
 672
 673 /***********************************************************************
 674  *              UserYield (USER.332)
 675  *              UserYield16 (USER32.@)
 676  */
 677 void WINAPI UserYield16(void)
 678 {
 679    DWORD count;
 680
 681     /* Handle sent messages */
 682     process_sent_messages();
 683
 684     /* Yield */
 685     ReleaseThunkLock(&count);
 686     if (count)
 687     {
 688         RestoreThunkLock(count);
 689         /* Handle sent messages again */
 690         process_sent_messages();
 691     }
 692 }
 693
 694
 695 struct accent_char
 696 {
 697     BYTE ac_accent;
 698     BYTE ac_char;
 699     BYTE ac_result;
 700 };
 701
 702 static const struct accent_char accent_chars[] =
 703 {
 704 /* A good idea should be to read /usr/X11/lib/X11/locale/iso8859-x/Compose */
 705     {'`', 'A', '\300'},  {'`', 'a', '\340'},
 706     {'\'', 'A', '\301'}, {'\'', 'a', '\341'},
 707     {'^', 'A', '\302'},  {'^', 'a', '\342'},
 708     {'~', 'A', '\303'},  {'~', 'a', '\343'},
 709     {'"', 'A', '\304'},  {'"', 'a', '\344'},
 710     {'O', 'A', '\305'},  {'o', 'a', '\345'},
 711     {'0', 'A', '\305'},  {'0', 'a', '\345'},
 712     {'A', 'A', '\305'},  {'a', 'a', '\345'},
 713     {'A', 'E', '\306'},  {'a', 'e', '\346'},
 714     {',', 'C', '\307'},  {',', 'c', '\347'},
 715     {'`', 'E', '\310'},  {'`', 'e', '\350'},
 716     {'\'', 'E', '\311'}, {'\'', 'e', '\351'},
 717     {'^', 'E', '\312'},  {'^', 'e', '\352'},
 718     {'"', 'E', '\313'},  {'"', 'e', '\353'},
 719     {'`', 'I', '\314'},  {'`', 'i', '\354'},
 720     {'\'', 'I', '\315'}, {'\'', 'i', '\355'},
 721     {'^', 'I', '\316'},  {'^', 'i', '\356'},
 722     {'"', 'I', '\317'},  {'"', 'i', '\357'},
 723     {'-', 'D', '\320'},  {'-', 'd', '\360'},
 724     {'~', 'N', '\321'},  {'~', 'n', '\361'},
 725     {'`', 'O', '\322'},  {'`', 'o', '\362'},
 726     {'\'', 'O', '\323'}, {'\'', 'o', '\363'},
 727     {'^', 'O', '\324'},  {'^', 'o', '\364'},
 728     {'~', 'O', '\325'},  {'~', 'o', '\365'},
 729     {'"', 'O', '\326'},  {'"', 'o', '\366'},
 730     {'/', 'O', '\330'},  {'/', 'o', '\370'},
 731     {'`', 'U', '\331'},  {'`', 'u', '\371'},
 732     {'\'', 'U', '\332'}, {'\'', 'u', '\372'},
 733     {'^', 'U', '\333'},  {'^', 'u', '\373'},
 734     {'"', 'U', '\334'},  {'"', 'u', '\374'},
 735     {'\'', 'Y', '\335'}, {'\'', 'y', '\375'},
 736     {'T', 'H', '\336'},  {'t', 'h', '\376'},
 737     {'s', 's', '\337'},  {'"', 'y', '\377'},
 738     {'s', 'z', '\337'},  {'i', 'j', '\377'},
 739         /* iso-8859-2 uses this */
 740     {'<', 'L', '\245'},  {'<', 'l', '\265'},    /* caron */
 741     {'<', 'S', '\251'},  {'<', 's', '\271'},
 742     {'<', 'T', '\253'},  {'<', 't', '\273'},
 743     {'<', 'Z', '\256'},  {'<', 'z', '\276'},
 744     {'<', 'C', '\310'},  {'<', 'c', '\350'},
 745     {'<', 'E', '\314'},  {'<', 'e', '\354'},
 746     {'<', 'D', '\317'},  {'<', 'd', '\357'},
 747     {'<', 'N', '\322'},  {'<', 'n', '\362'},
 748     {'<', 'R', '\330'},  {'<', 'r', '\370'},
 749     {';', 'A', '\241'},  {';', 'a', '\261'},    /* ogonek */
 750     {';', 'E', '\312'},  {';', 'e', '\332'},
 751     {'\'', 'Z', '\254'}, {'\'', 'z', '\274'},   /* acute */
 752     {'\'', 'R', '\300'}, {'\'', 'r', '\340'},
 753     {'\'', 'L', '\305'}, {'\'', 'l', '\345'},
 754     {'\'', 'C', '\306'}, {'\'', 'c', '\346'},
 755     {'\'', 'N', '\321'}, {'\'', 'n', '\361'},
 756 /*  collision whith S, from iso-8859-9 !!! */
 757     {',', 'S', '\252'},  {',', 's', '\272'},    /* cedilla */
 758     {',', 'T', '\336'},  {',', 't', '\376'},
 759     {'.', 'Z', '\257'},  {'.', 'z', '\277'},    /* dot above */
 760     {'/', 'L', '\243'},  {'/', 'l', '\263'},    /* slash */
 761     {'/', 'D', '\320'},  {'/', 'd', '\360'},
 762     {'(', 'A', '\303'},  {'(', 'a', '\343'},    /* breve */
 763     {'\275', 'O', '\325'}, {'\275', 'o', '\365'},       /* double acute */
 764     {'\275', 'U', '\334'}, {'\275', 'u', '\374'},
 765     {'0', 'U', '\332'},  {'0', 'u', '\372'},    /* ring above */
 766         /* iso-8859-3 uses this */
 767     {'/', 'H', '\241'},  {'/', 'h', '\261'},    /* slash */
 768     {'>', 'H', '\246'},  {'>', 'h', '\266'},    /* circumflex */
 769     {'>', 'J', '\254'},  {'>', 'j', '\274'},
 770     {'>', 'C', '\306'},  {'>', 'c', '\346'},
 771     {'>', 'G', '\330'},  {'>', 'g', '\370'},
 772     {'>', 'S', '\336'},  {'>', 's', '\376'},
 773 /*  collision whith G( from iso-8859-9 !!!   */
 774     {'(', 'G', '\253'},  {'(', 'g', '\273'},    /* breve */
 775     {'(', 'U', '\335'},  {'(', 'u', '\375'},
 776 /*  collision whith I. from iso-8859-3 !!!   */
 777     {'.', 'I', '\251'},  {'.', 'i', '\271'},    /* dot above */
 778     {'.', 'C', '\305'},  {'.', 'c', '\345'},
 779     {'.', 'G', '\325'},  {'.', 'g', '\365'},
 780         /* iso-8859-4 uses this */
 781     {',', 'R', '\243'},  {',', 'r', '\263'},    /* cedilla */
 782     {',', 'L', '\246'},  {',', 'l', '\266'},
 783     {',', 'G', '\253'},  {',', 'g', '\273'},
 784     {',', 'N', '\321'},  {',', 'n', '\361'},
 785     {',', 'K', '\323'},  {',', 'k', '\363'},
 786     {'~', 'I', '\245'},  {'~', 'i', '\265'},    /* tilde */
 787     {'-', 'E', '\252'},  {'-', 'e', '\272'},    /* macron */
 788     {'-', 'A', '\300'},  {'-', 'a', '\340'},
 789     {'-', 'I', '\317'},  {'-', 'i', '\357'},
 790     {'-', 'O', '\322'},  {'-', 'o', '\362'},
 791     {'-', 'U', '\336'},  {'-', 'u', '\376'},
 792     {'/', 'T', '\254'},  {'/', 't', '\274'},    /* slash */
 793     {'.', 'E', '\314'},  {'.', 'e', '\344'},    /* dot above */
 794     {';', 'I', '\307'},  {';', 'i', '\347'},    /* ogonek */
 795     {';', 'U', '\331'},  {';', 'u', '\371'},
 796         /* iso-8859-9 uses this */
 797         /* iso-8859-9 has really bad choosen G( S, and I. as they collide
 798          * whith the same letters on other iso-8859-x (that is they are on
 799          * different places :-( ), if you use turkish uncomment these and
 800          * comment out the lines in iso-8859-2 and iso-8859-3 sections
 801          * FIXME: should be dynamic according to chosen language
 802          *        if/when Wine has turkish support.
 803          */
 804 /*  collision whith G( from iso-8859-3 !!!   */
 805 /*  {'(', 'G', '\320'},  {'(', 'g', '\360'}, */ /* breve */
 806 /*  collision whith S, from iso-8859-2 !!! */
 807 /*  {',', 'S', '\336'},  {',', 's', '\376'}, */ /* cedilla */
 808 /*  collision whith I. from iso-8859-3 !!!   */
 809 /*  {'.', 'I', '\335'},  {'.', 'i', '\375'}, */ /* dot above */
 810 };
 811
 812
 813 /***********************************************************************
 814  *              TranslateMessage (USER32.@)
 815  *
 816  * Implementation of TranslateMessage.
 817  *
 818  * TranslateMessage translates virtual-key messages into character-messages,
 819  * as follows :
 820  * WM_KEYDOWN/WM_KEYUP combinations produce a WM_CHAR or WM_DEADCHAR message.
 821  * ditto replacing WM_* with WM_SYS*
 822  * This produces WM_CHAR messages only for keys mapped to ASCII characters
 823  * by the keyboard driver.
 824  */
 825 BOOL WINAPI TranslateMessage( const MSG *msg )
 826 {
 827     static int dead_char;
 828     UINT message;
 829     WCHAR wp[2];
 830
 831     if (msg->message >= WM_KEYFIRST && msg->message <= WM_KEYLAST)
 832         TRACE_(key)("(%s, %04X, %08lX)\n",
 833                     SPY_GetMsgName(msg->message), msg->wParam, msg->lParam );
 834
 835     if ((msg->message != WM_KEYDOWN) && (msg->message != WM_SYSKEYDOWN)) return FALSE;
 836
 837     TRACE_(key)("Translating key %s (%04x), scancode %02x\n",
 838                  SPY_GetVKeyName(msg->wParam), msg->wParam, LOBYTE(HIWORD(msg->lParam)));
 839
 840     /* FIXME : should handle ToUnicode yielding 2 */
 841     switch (ToUnicode(msg->wParam, HIWORD(msg->lParam), QueueKeyStateTable, wp, 2, 0))
 842     {
 843     case 1:
 844         message = (msg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
 845         /* Should dead chars handling go in ToAscii ? */
 846         if (dead_char)
 847         {
 848             int i;
 849
 850             if (wp[0] == ' ') wp[0] =  dead_char;
 851             if (dead_char == 0xa2) dead_char = '(';
 852             else if (dead_char == 0xa8) dead_char = '"';
 853             else if (dead_char == 0xb2) dead_char = ';';
 854             else if (dead_char == 0xb4) dead_char = '\'';
 855             else if (dead_char == 0xb7) dead_char = '<';
 856             else if (dead_char == 0xb8) dead_char = ',';
 857             else if (dead_char == 0xff) dead_char = '.';
 858             for (i = 0; i < sizeof(accent_chars)/sizeof(accent_chars[0]); i++)
 859                 if ((accent_chars[i].ac_accent == dead_char) &&
 860                     (accent_chars[i].ac_char == wp[0]))
 861                 {
 862                     wp[0] = accent_chars[i].ac_result;
 863                     break;
 864                 }
 865             dead_char = 0;
 866         }
 867         TRACE_(key)("1 -> PostMessage(%s)\n", SPY_GetMsgName(message));
 868         PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
 869         return TRUE;
 870
 871     case -1:
 872         message = (msg->message == WM_KEYDOWN) ? WM_DEADCHAR : WM_SYSDEADCHAR;
 873         dead_char = wp[0];
 874         TRACE_(key)("-1 -> PostMessage(%s)\n", SPY_GetMsgName(message));
 875         PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
 876         return TRUE;
 877     }
 878     return FALSE;
 879 }
 880
 881
 882 /***********************************************************************
 883  *              DispatchMessageA (USER32.@)
 884  */
 885 LONG WINAPI DispatchMessageA( const MSG* msg )
 886 {
 887     WND * wndPtr;
 888     LONG retval;
 889     int painting;
 890
 891       /* Process timer messages */
 892     if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
 893     {
 894         if (msg->lParam)
 895         {
 896 /*            HOOK_CallHooks32A( WH_CALLWNDPROC, HC_ACTION, 0, FIXME ); */
 897
 898             /* before calling window proc, verify whether timer is still valid;
 899                there's a slim chance that the application kills the timer
 900                between GetMessage and DispatchMessage API calls */
 901             if (!TIMER_IsTimerValid(msg->hwnd, (UINT) msg->wParam, (HWINDOWPROC) msg->lParam))
 902                 return 0; /* invalid winproc */
 903
 904             return CallWindowProcA( (WNDPROC)msg->lParam, msg->hwnd,
 905                                    msg->message, msg->wParam, GetTickCount() );
 906         }
 907     }
 908
 909     if (!msg->hwnd) return 0;
 910     if (!(wndPtr = WIN_FindWndPtr( msg->hwnd ))) return 0;
 911     if (!wndPtr->winproc)
 912     {
 913         retval = 0;
 914         goto END;
 915     }
 916     painting = (msg->message == WM_PAINT);
 917     if (painting) wndPtr->flags |= WIN_NEEDS_BEGINPAINT;
 918 /*    HOOK_CallHooks32A( WH_CALLWNDPROC, HC_ACTION, 0, FIXME ); */
 919
 920     SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
 921                       msg->wParam, msg->lParam );
 922     retval = CallWindowProcA( (WNDPROC)wndPtr->winproc,
 923                                 msg->hwnd, msg->message,
 924                                 msg->wParam, msg->lParam );
 925     SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
 926                      msg->wParam, msg->lParam );
 927
 928     WIN_ReleaseWndPtr(wndPtr);
 929     wndPtr = WIN_FindWndPtr(msg->hwnd);
 930
 931     if (painting && wndPtr &&
 932         (wndPtr->flags & WIN_NEEDS_BEGINPAINT) && wndPtr->hrgnUpdate)
 933     {
 934         ERR("BeginPaint not called on WM_PAINT for hwnd %04x!\n",
 935             msg->hwnd);
 936         wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT;
 937         /* Validate the update region to avoid infinite WM_PAINT loop */
 938         RedrawWindow( wndPtr->hwndSelf, NULL, 0,
 939                       RDW_NOFRAME | RDW_VALIDATE | RDW_NOCHILDREN | RDW_NOINTERNALPAINT );
 940     }
 941 END:
 942     WIN_ReleaseWndPtr(wndPtr);
 943     return retval;
 944 }
 945
 946
 947 /***********************************************************************
 948  *              DispatchMessageW (USER32.@) Process Message
 949  *
 950  * Process the message specified in the structure *_msg_.
 951  *
 952  * If the lpMsg parameter points to a WM_TIMER message and the
 953  * parameter of the WM_TIMER message is not NULL, the lParam parameter
 954  * points to the function that is called instead of the window
 955  * procedure.
 956  *
 957  * The message must be valid.
 958  *
 959  * RETURNS
 960  *
 961  *   DispatchMessage() returns the result of the window procedure invoked.
 962  *
 963  * CONFORMANCE
 964  *
 965  *   ECMA-234, Win32
 966  *
 967  */
 968 LONG WINAPI DispatchMessageW( const MSG* msg )
 969 {
 970     WND * wndPtr;
 971     LONG retval;
 972     int painting;
 973
 974       /* Process timer messages */
 975     if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
 976     {
 977         if (msg->lParam)
 978         {
 979 /*            HOOK_CallHooks32W( WH_CALLWNDPROC, HC_ACTION, 0, FIXME ); */
 980
 981             /* before calling window proc, verify whether timer is still valid;
 982                there's a slim chance that the application kills the timer
 983                between GetMessage and DispatchMessage API calls */
 984             if (!TIMER_IsTimerValid(msg->hwnd, (UINT) msg->wParam, (HWINDOWPROC) msg->lParam))
 985                 return 0; /* invalid winproc */
 986
 987             return CallWindowProcW( (WNDPROC)msg->lParam, msg->hwnd,
 988                                    msg->message, msg->wParam, GetTickCount() );
 989         }
 990     }
 991
 992     if (!msg->hwnd) return 0;
 993     if (!(wndPtr = WIN_FindWndPtr( msg->hwnd ))) return 0;
 994     if (!wndPtr->winproc)
 995     {
 996         retval = 0;
 997         goto END;
 998     }
 999     painting = (msg->message == WM_PAINT);
1000     if (painting) wndPtr->flags |= WIN_NEEDS_BEGINPAINT;
1001 /*    HOOK_CallHooks32W( WH_CALLWNDPROC, HC_ACTION, 0, FIXME ); */
1002
1003     SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
1004                       msg->wParam, msg->lParam );
1005     retval = CallWindowProcW( (WNDPROC)wndPtr->winproc,
1006                                 msg->hwnd, msg->message,
1007                                 msg->wParam, msg->lParam );
1008     SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
1009                      msg->wParam, msg->lParam );
1010
1011     WIN_ReleaseWndPtr(wndPtr);
1012     wndPtr = WIN_FindWndPtr(msg->hwnd);
1013
1014     if (painting && wndPtr &&
1015         (wndPtr->flags & WIN_NEEDS_BEGINPAINT) && wndPtr->hrgnUpdate)
1016     {
1017         ERR("BeginPaint not called on WM_PAINT for hwnd %04x!\n",
1018             msg->hwnd);
1019         wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT;
1020         /* Validate the update region to avoid infinite WM_PAINT loop */
1021         RedrawWindow( wndPtr->hwndSelf, NULL, 0,
1022                       RDW_NOFRAME | RDW_VALIDATE | RDW_NOCHILDREN | RDW_NOINTERNALPAINT );
1023     }
1024 END:
1025     WIN_ReleaseWndPtr(wndPtr);
1026     return retval;
1027 }
1028
1029
1030 /***********************************************************************
1031  *              RegisterWindowMessage (USER.118)
1032  *              RegisterWindowMessageA (USER32.@)
1033  */
1034 WORD WINAPI RegisterWindowMessageA( LPCSTR str )
1035 {
1036     TRACE("%s\n", str );
1037     return GlobalAddAtomA( str );
1038 }
1039
1040
1041 /***********************************************************************
1042  *              RegisterWindowMessageW (USER32.@)
1043  */
1044 WORD WINAPI RegisterWindowMessageW( LPCWSTR str )
1045 {
1046     TRACE("%p\n", str );
1047     return GlobalAddAtomW( str );
1048 }
1049
1050
1051 /***********************************************************************
1052  *              BroadcastSystemMessage (USER32.@)
1053  */
1054 LONG WINAPI BroadcastSystemMessage(
1055         DWORD dwFlags,LPDWORD recipients,UINT uMessage,WPARAM wParam,
1056         LPARAM lParam
1057 ) {
1058         FIXME("(%08lx,%08lx,%08x,%08x,%08lx): stub!\n",
1059               dwFlags,*recipients,uMessage,wParam,lParam
1060         );
1061         return 0;
1062 }