/* * Message queues related functions * * Copyright 1993 Alexandre Julliard */ /* * This code assumes that there is only one Windows task (hence * one message queue). */ static char Copyright[] = "Copyright Alexandre Julliard, 1993"; #include #include #include #include "message.h" #include "win.h" #include "wineopts.h" #include "sysmetrics.h" #include "hook.h" #define HWND_BROADCAST ((HWND)0xffff) #define MAX_QUEUE_SIZE 120 /* Max. size of a message queue */ extern BOOL TIMER_CheckTimer( LONG *next, MSG *msg, HWND hwnd, BOOL remove ); /* timer.c */ extern void EVENT_ProcessEvent( XEvent *event ); /* event.c */ extern void WINPOS_ChangeActiveWindow( HWND hwnd, BOOL mouseMsg ); /*winpos.c*/ extern void WIN_SendParentNotify( HWND hwnd, WORD event, LONG lParam ); /* win.c */ extern Display * display; /* System message queue (for hardware events) */ static HANDLE hmemSysMsgQueue = 0; static MESSAGEQUEUE * sysMsgQueue = NULL; /* Application message queue (should be a list, one queue per task) */ static HANDLE hmemAppMsgQueue = 0; static MESSAGEQUEUE * appMsgQueue = NULL; /* Double-click time */ static int doubleClickSpeed = 452; /*********************************************************************** * MSG_CreateMsgQueue * * Create a message queue. */ static HANDLE MSG_CreateMsgQueue( int size ) { HANDLE hQueue; MESSAGEQUEUE * msgQueue; int queueSize; queueSize = sizeof(MESSAGEQUEUE) + size * sizeof(QMSG); if (!(hQueue = GlobalAlloc( GMEM_FIXED, queueSize ))) return 0; msgQueue = (MESSAGEQUEUE *) GlobalLock( hQueue ); msgQueue->next = 0; msgQueue->hTask = 0; msgQueue->msgSize = sizeof(QMSG); msgQueue->msgCount = 0; msgQueue->nextMessage = 0; msgQueue->nextFreeMessage = 0; msgQueue->queueSize = size; msgQueue->GetMessageTimeVal = 0; msgQueue->GetMessagePosVal = 0; msgQueue->GetMessageExtraInfoVal = 0; msgQueue->lParam = 0; msgQueue->wParam = 0; msgQueue->msg = 0; msgQueue->hWnd = 0; msgQueue->wPostQMsg = 0; msgQueue->wExitCode = 0; msgQueue->InSendMessageHandle = 0; msgQueue->wPaintCount = 0; msgQueue->wTimerCount = 0; msgQueue->tempStatus = 0; msgQueue->status = 0; GlobalUnlock( hQueue ); return hQueue; } /*********************************************************************** * MSG_CreateSysMsgQueue * * Create the system message queue, and set the double-click speed. * Must be called only once. */ BOOL MSG_CreateSysMsgQueue( int size ) { if (size > MAX_QUEUE_SIZE) size = MAX_QUEUE_SIZE; else if (size <= 0) size = 1; if (!(hmemSysMsgQueue = MSG_CreateMsgQueue( size ))) return FALSE; sysMsgQueue = (MESSAGEQUEUE *) GlobalLock( hmemSysMsgQueue ); doubleClickSpeed = GetProfileInt( "windows", "DoubleClickSpeed", 452 ); return TRUE; } /*********************************************************************** * MSG_AddMsg * * Add a message to the queue. Return FALSE if queue is full. */ static int MSG_AddMsg( MESSAGEQUEUE * msgQueue, MSG * msg, DWORD extraInfo ) { int pos; if (!msgQueue) return FALSE; pos = msgQueue->nextFreeMessage; /* Check if queue is full */ if ((pos == msgQueue->nextMessage) && (msgQueue->msgCount > 0)) { printf("MSG_AddMsg // queue is full !\n"); return FALSE; } /* Store message */ msgQueue->messages[pos].msg = *msg; msgQueue->messages[pos].extraInfo = extraInfo; if (pos < msgQueue->queueSize-1) pos++; else pos = 0; msgQueue->nextFreeMessage = pos; msgQueue->msgCount++; msgQueue->status |= QS_POSTMESSAGE; msgQueue->tempStatus |= QS_POSTMESSAGE; return TRUE; } /*********************************************************************** * MSG_FindMsg * * Find a message matching the given parameters. Return -1 if none available. */ static int MSG_FindMsg(MESSAGEQUEUE * msgQueue, HWND hwnd, int first, int last) { int i, pos = msgQueue->nextMessage; if (!msgQueue->msgCount) return -1; if (!hwnd && !first && !last) return pos; for (i = 0; i < msgQueue->msgCount; i++) { MSG * msg = &msgQueue->messages[pos].msg; if (!hwnd || (msg->hwnd == hwnd)) { if (!first && !last) return pos; if ((msg->message >= first) && (msg->message <= last)) return pos; } if (pos < msgQueue->queueSize-1) pos++; else pos = 0; } return -1; } /*********************************************************************** * MSG_RemoveMsg * * Remove a message from the queue (pos must be a valid position). */ static void MSG_RemoveMsg( MESSAGEQUEUE * msgQueue, int pos ) { if (pos >= msgQueue->nextMessage) { for ( ; pos > msgQueue->nextMessage; pos--) msgQueue->messages[pos] = msgQueue->messages[pos-1]; msgQueue->nextMessage++; if (msgQueue->nextMessage >= msgQueue->queueSize) msgQueue->nextMessage = 0; } else { for ( ; pos < msgQueue->nextFreeMessage; pos++) msgQueue->messages[pos] = msgQueue->messages[pos+1]; if (msgQueue->nextFreeMessage) msgQueue->nextFreeMessage--; else msgQueue->nextFreeMessage = msgQueue->queueSize-1; } msgQueue->msgCount--; if (!msgQueue->msgCount) msgQueue->status &= ~QS_POSTMESSAGE; msgQueue->tempStatus = 0; } /*********************************************************************** * MSG_TranslateMouseMsg * * Translate an mouse hardware event into a real mouse message. * Return value indicates whether the translated message must be passed * to the user. * Actions performed: * - Find the window for this message. * - Translate button-down messages in double-clicks. * - Send the WM_NCHITTEST message to find where the cursor is. * - Activate the window if needed. * - Translate the message into a non-client message, or translate * the coordinates to client coordinates. * - Send the WM_SETCURSOR message. */ static BOOL MSG_TranslateMouseMsg( MSG *msg, BOOL remove ) { BOOL eatMsg = FALSE; LONG hittest_result; static DWORD lastClickTime = 0; static WORD lastClickMsg = 0; static POINT lastClickPos = { 0, 0 }; BOOL mouseClick = ((msg->message == WM_LBUTTONDOWN) || (msg->message == WM_RBUTTONDOWN) || (msg->message == WM_MBUTTONDOWN)); /* Find the window */ if (GetCapture()) { msg->hwnd = GetCapture(); msg->lParam = MAKELONG( msg->pt.x, msg->pt.y ); ScreenToClient( msg->hwnd, (LPPOINT)&msg->lParam ); return TRUE; /* No need to further process the message */ } else msg->hwnd = WindowFromPoint( msg->pt ); /* Send the WM_NCHITTEST message */ hittest_result = SendMessage( msg->hwnd, WM_NCHITTEST, 0, MAKELONG( msg->pt.x, msg->pt.y ) ); while ((hittest_result == HTTRANSPARENT) && (msg->hwnd)) { msg->hwnd = GetParent(msg->hwnd); if (!msg->hwnd) hittest_result = SendMessage( msg->hwnd, WM_NCHITTEST, 0, MAKELONG( msg->pt.x, msg->pt.y ) ); } if (!msg->hwnd) msg->hwnd = GetDesktopWindow(); /* Send the WM_PARENTNOTIFY message */ if (mouseClick) WIN_SendParentNotify( msg->hwnd, msg->message, MAKELONG( msg->pt.x, msg->pt.y ) ); /* Activate the window if needed */ if (mouseClick) { HWND parent, hwndTop = msg->hwnd; while ((parent = GetParent(hwndTop)) != 0) hwndTop = parent; if (hwndTop != GetActiveWindow()) { LONG ret = SendMessage( msg->hwnd, WM_MOUSEACTIVATE, hwndTop, MAKELONG( hittest_result, msg->message ) ); if ((ret == MA_ACTIVATEANDEAT) || (ret == MA_NOACTIVATEANDEAT)) eatMsg = TRUE; if ((ret == MA_ACTIVATE) || (ret == MA_ACTIVATEANDEAT)) { SetWindowPos( hwndTop, HWND_TOP, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE ); WINPOS_ChangeActiveWindow( hwndTop, TRUE ); } } } /* Send the WM_SETCURSOR message */ SendMessage( msg->hwnd, WM_SETCURSOR, msg->hwnd, MAKELONG( hittest_result, msg->message )); if (eatMsg) return FALSE; /* Check for double-click */ if (mouseClick) { BOOL dbl_click = FALSE; if ((msg->message == lastClickMsg) && (msg->time - lastClickTime < doubleClickSpeed) && (abs(msg->pt.x - lastClickPos.x) < SYSMETRICS_CXDOUBLECLK/2) && (abs(msg->pt.y - lastClickPos.y) < SYSMETRICS_CYDOUBLECLK/2)) dbl_click = TRUE; if (dbl_click && (hittest_result == HTCLIENT)) { /* Check whether window wants the double click message. */ WND * wndPtr = WIN_FindWndPtr( msg->hwnd ); if (!wndPtr || !(wndPtr->flags & WIN_DOUBLE_CLICKS)) dbl_click = FALSE; } if (dbl_click) switch(msg->message) { case WM_LBUTTONDOWN: msg->message = WM_LBUTTONDBLCLK; break; case WM_RBUTTONDOWN: msg->message = WM_RBUTTONDBLCLK; break; case WM_MBUTTONDOWN: msg->message = WM_MBUTTONDBLCLK; break; } if (remove) { lastClickTime = msg->time; lastClickMsg = msg->message; lastClickPos = msg->pt; } } /* Build the translated message */ msg->lParam = MAKELONG( msg->pt.x, msg->pt.y ); if (hittest_result == HTCLIENT) { ScreenToClient( msg->hwnd, (LPPOINT)&msg->lParam ); } else { msg->wParam = hittest_result; msg->message += WM_NCLBUTTONDOWN - WM_LBUTTONDOWN; } return TRUE; } /*********************************************************************** * MSG_TranslateKeyboardMsg * * Translate an keyboard hardware event into a real message. * Return value indicates whether the translated message must be passed * to the user. */ static BOOL MSG_TranslateKeyboardMsg( MSG *msg ) { /* Should check Ctrl-Esc and PrintScreen here */ msg->hwnd = GetFocus(); if (!msg->hwnd) { /* Send the message to the active window instead, */ /* translating messages to their WM_SYS equivalent */ msg->hwnd = GetActiveWindow(); msg->message += WM_SYSKEYDOWN - WM_KEYDOWN; } return TRUE; } /********************************************************************** * SetDoubleClickTime (USER.20) */ void SetDoubleClickTime( WORD interval ) { if (interval == 0) doubleClickSpeed = 500; else doubleClickSpeed = interval; } /********************************************************************** * GetDoubleClickTime (USER.21) */ WORD GetDoubleClickTime() { return (WORD)doubleClickSpeed; } /*********************************************************************** * MSG_IncPaintCount */ void MSG_IncPaintCount( HANDLE hQueue ) { if (hQueue != hmemAppMsgQueue) return; appMsgQueue->wPaintCount++; appMsgQueue->status |= QS_PAINT; appMsgQueue->tempStatus |= QS_PAINT; } /*********************************************************************** * MSG_DecPaintCount */ void MSG_DecPaintCount( HANDLE hQueue ) { if (hQueue != hmemAppMsgQueue) return; appMsgQueue->wPaintCount--; if (!appMsgQueue->wPaintCount) appMsgQueue->status &= ~QS_PAINT; } /*********************************************************************** * MSG_IncTimerCount */ void MSG_IncTimerCount( HANDLE hQueue ) { if (hQueue != hmemAppMsgQueue) return; appMsgQueue->wTimerCount++; appMsgQueue->status |= QS_TIMER; appMsgQueue->tempStatus |= QS_TIMER; } /*********************************************************************** * MSG_DecTimerCount */ void MSG_DecTimerCount( HANDLE hQueue ) { if (hQueue != hmemAppMsgQueue) return; appMsgQueue->wTimerCount--; if (!appMsgQueue->wTimerCount) appMsgQueue->status &= ~QS_TIMER; } /*********************************************************************** * hardware_event * * Add an event to the system message queue. * Note: the position is relative to the desktop window. */ void hardware_event( WORD message, WORD wParam, LONG lParam, int xPos, int yPos, DWORD time, DWORD extraInfo ) { MSG msg; msg.hwnd = 0; msg.message = message; msg.wParam = wParam; msg.lParam = lParam; msg.time = time; msg.pt.x = xPos & 0xffff; msg.pt.y = yPos & 0xffff; /* Merge with previous event if possible */ if (sysMsgQueue->msgCount && (message == WM_MOUSEMOVE)) { MSG *prevMsg = &sysMsgQueue->messages[sysMsgQueue->nextMessage].msg; if ((prevMsg->message == message) && (prevMsg->wParam == wParam)) { *prevMsg = msg; /* Overwrite previous message */ return; } } if (!MSG_AddMsg( sysMsgQueue, &msg, extraInfo )) printf( "hardware_event: Queue is full\n" ); } /*********************************************************************** * MSG_GetHardwareMessage * * Like GetMessage(), but only return mouse and keyboard events. * Used internally for window moving and resizing. Mouse messages * are not translated. * Warning: msg->hwnd is always 0. */ BOOL MSG_GetHardwareMessage( LPMSG msg ) { int pos; XEvent event; while(1) { if ((pos = MSG_FindMsg( sysMsgQueue, 0, 0, 0 )) != -1) { *msg = sysMsgQueue->messages[pos].msg; MSG_RemoveMsg( sysMsgQueue, pos ); break; } XNextEvent( display, &event ); EVENT_ProcessEvent( &event ); } return TRUE; } /*********************************************************************** * SetTaskQueue (KERNEL.34) */ WORD SetTaskQueue( HANDLE hTask, HANDLE hQueue ) { HANDLE prev = hmemAppMsgQueue; hmemAppMsgQueue = hQueue; return prev; } /*********************************************************************** * GetTaskQueue (KERNEL.35) */ WORD GetTaskQueue( HANDLE hTask ) { return hmemAppMsgQueue; } /*********************************************************************** * SetMessageQueue (USER.266) */ BOOL SetMessageQueue( int size ) { HANDLE hQueue; if ((size > MAX_QUEUE_SIZE) || (size <= 0)) return TRUE; /* Free the old message queue */ if ((hQueue = GetTaskQueue(0)) != 0) { GlobalUnlock( hQueue ); GlobalFree( hQueue ); } if (!(hQueue = MSG_CreateMsgQueue( size ))) return FALSE; SetTaskQueue( 0, hQueue ); appMsgQueue = (MESSAGEQUEUE *)GlobalLock( hQueue ); return TRUE; } /*********************************************************************** * PostQuitMessage (USER.6) */ void PostQuitMessage( int exitCode ) { if (!appMsgQueue) return; appMsgQueue->wPostQMsg = TRUE; appMsgQueue->wExitCode = exitCode; } /*********************************************************************** * GetQueueStatus (USER.334) */ DWORD GetQueueStatus( int flags ) { unsigned long ret = (appMsgQueue->status << 16) | appMsgQueue->tempStatus; appMsgQueue->tempStatus = 0; return ret & ((flags << 16) | flags); } /*********************************************************************** * GetInputState (USER.335) */ BOOL GetInputState() { return appMsgQueue->status & (QS_KEY | QS_MOUSEBUTTON); } /*********************************************************************** * MSG_Synchronize * * Synchronize with the X server. Should not be used too often. */ void MSG_Synchronize() { XEvent event; XSync( display, False ); while (XPending( display )) { XNextEvent( display, &event ); EVENT_ProcessEvent( &event ); } } /*********************************************************************** * MSG_PeekMessage */ static BOOL MSG_PeekMessage( MESSAGEQUEUE * msgQueue, LPMSG msg, HWND hwnd, WORD first, WORD last, WORD flags, BOOL peek ) { int pos, mask; LONG nextExp; /* Next timer expiration time */ XEvent event; fd_set read_set; struct timeval timeout; int fd = ConnectionNumber(display); if (first || last) { mask = QS_POSTMESSAGE; /* Always selectioned */ if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY; if ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) mask |= QS_MOUSE; if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER; if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER; if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT; } else mask = QS_MOUSE | QS_KEY | QS_POSTMESSAGE | QS_TIMER | QS_PAINT; while(1) { /* First handle a message put by SendMessage() */ if (msgQueue->status & QS_SENDMESSAGE) { if (!hwnd || (msgQueue->hWnd == hwnd)) { if ((!first && !last) || ((msgQueue->msg >= first) && (msgQueue->msg <= last))) { msg->hwnd = msgQueue->hWnd; msg->message = msgQueue->msg; msg->wParam = msgQueue->wParam; msg->lParam = msgQueue->lParam; if (flags & PM_REMOVE) msgQueue->status &= ~QS_SENDMESSAGE; break; } } } /* Now find a normal message */ pos = MSG_FindMsg( msgQueue, hwnd, first, last ); if (pos != -1) { QMSG *qmsg = &msgQueue->messages[pos]; *msg = qmsg->msg; msgQueue->GetMessageTimeVal = msg->time; msgQueue->GetMessagePosVal = *(DWORD *)&msg->pt; msgQueue->GetMessageExtraInfoVal = qmsg->extraInfo; if (flags & PM_REMOVE) MSG_RemoveMsg( msgQueue, pos ); break; } /* Now find a hardware event */ pos = MSG_FindMsg( sysMsgQueue, 0, first, last ); if (pos != -1) { QMSG *qmsg = &sysMsgQueue->messages[pos]; *msg = qmsg->msg; msgQueue->GetMessageTimeVal = msg->time; msgQueue->GetMessagePosVal = *(DWORD *)&msg->pt; msgQueue->GetMessageExtraInfoVal = qmsg->extraInfo; if ((msg->message >= WM_MOUSEFIRST) && (msg->message <= WM_MOUSELAST)) if (!MSG_TranslateMouseMsg( msg, flags & PM_REMOVE )) { MSG_RemoveMsg( sysMsgQueue, pos ); continue; } else if ((msg->message >= WM_KEYFIRST) && (msg->message <= WM_KEYLAST)) if (!MSG_TranslateKeyboardMsg( msg )) { MSG_RemoveMsg( sysMsgQueue, pos ); continue; } if (flags & PM_REMOVE) MSG_RemoveMsg( sysMsgQueue, pos ); break; } /* Now handle a WM_QUIT message */ if (msgQueue->wPostQMsg) { msg->hwnd = hwnd; msg->message = WM_QUIT; msg->wParam = msgQueue->wExitCode; msg->lParam = 0; break; } /* Now find a WM_PAINT message */ if ((msgQueue->status & QS_PAINT) && (mask & QS_PAINT)) { msg->hwnd = WIN_FindWinToRepaint( hwnd ); msg->message = WM_PAINT; msg->wParam = 0; msg->lParam = 0; if (msg->hwnd != 0) break; } /* Finally handle WM_TIMER messages */ if ((msgQueue->status & QS_TIMER) && (mask & QS_TIMER)) { if (TIMER_CheckTimer( &nextExp, msg, hwnd, flags & PM_REMOVE )) break; /* Got a timer msg */ } else nextExp = -1; /* No timeout needed */ /* Wait until something happens */ FD_ZERO( &read_set ); FD_SET( fd, &read_set ); if (peek) { timeout.tv_sec = 0; timeout.tv_usec = 0; if (select( fd+1, &read_set, NULL, NULL, &timeout ) != 1) return FALSE; /* No data waiting to be read */ } else if (!XPending( display ) && (nextExp != -1)) { timeout.tv_sec = nextExp / 1000; timeout.tv_usec = (nextExp % 1000) * 1000; if (select( fd+1, &read_set, NULL, NULL, &timeout ) != 1) continue; /* On timeout or error, restart from the start */ } while (XPending( display )) { XNextEvent( display, &event ); EVENT_ProcessEvent( &event ); } } /* We got a message */ if (peek) return TRUE; else return (msg->message != WM_QUIT); } /*********************************************************************** * MSG_InternalGetMessage * * GetMessage() function for internal use. Behave like GetMessage(), * but also call message filters and optionally send WM_ENTERIDLE messages. * 'hwnd' must be the handle of the dialog or menu window. * 'code' is the message filter value (MSGF_??? codes). */ BOOL MSG_InternalGetMessage( LPMSG msg, HWND hwnd, HWND hwndOwner, short code, WORD flags, BOOL sendIdle ) { for (;;) { if (sendIdle) { if (!MSG_PeekMessage( appMsgQueue, msg, 0, 0, 0, flags, TRUE )) { /* No message present -> send ENTERIDLE and wait */ SendMessage( hwndOwner, WM_ENTERIDLE, code, (LPARAM)hwnd ); MSG_PeekMessage( appMsgQueue, msg, 0, 0, 0, flags, FALSE ); } } else /* Always wait for a message */ MSG_PeekMessage( appMsgQueue, msg, 0, 0, 0, flags, FALSE ); if (!CallMsgFilter( msg, code )) return (msg->message != WM_QUIT); /* Message filtered -> remove it from the queue */ /* if it's still there. */ if (!(flags & PM_REMOVE)) MSG_PeekMessage( appMsgQueue, msg, 0, 0, 0, PM_REMOVE, TRUE ); } } /*********************************************************************** * PeekMessage (USER.109) */ BOOL PeekMessage( LPMSG msg, HWND hwnd, WORD first, WORD last, WORD flags ) { return MSG_PeekMessage( appMsgQueue, msg, hwnd, first, last, flags, TRUE ); } /*********************************************************************** * GetMessage (USER.108) */ BOOL GetMessage( LPMSG msg, HWND hwnd, WORD first, WORD last ) { MSG_PeekMessage( appMsgQueue, msg, hwnd, first, last, PM_REMOVE, FALSE ); CALL_SYSTEM_HOOK( WH_GETMESSAGE, 0, 0, (LPARAM)msg ); CALL_TASK_HOOK( WH_GETMESSAGE, 0, 0, (LPARAM)msg ); return (msg->message != WM_QUIT); } /*********************************************************************** * PostMessage (USER.110) */ BOOL PostMessage( HWND hwnd, WORD message, WORD wParam, LONG lParam ) { MSG msg; WND *wndPtr; if (hwnd == HWND_BROADCAST) { #ifdef DEBUG_MSG printf("PostMessage // HWND_BROADCAST !\n"); #endif hwnd = GetTopWindow(GetDesktopWindow()); while (hwnd) { if (!(wndPtr = WIN_FindWndPtr(hwnd))) break; if (wndPtr->dwStyle & WS_POPUP || wndPtr->dwStyle & WS_CAPTION) { #ifdef DEBUG_MSG printf("BROADCAST Message to hWnd=%04X m=%04X w=%04X l=%08X !\n", hwnd, message, wParam, lParam); #endif PostMessage(hwnd, message, wParam, lParam); } /* { char str[128]; GetWindowText(hwnd, str, sizeof(str)); printf("BROADCAST GetWindowText()='%s' !\n", str); }*/ hwnd = wndPtr->hwndNext; } #ifdef DEBUG_MSG printf("PostMessage // End of HWND_BROADCAST !\n"); #endif return TRUE; } wndPtr = WIN_FindWndPtr( hwnd ); if (!wndPtr || !wndPtr->hmemTaskQ) return FALSE; msg.hwnd = hwnd; msg.message = message; msg.wParam = wParam; msg.lParam = lParam; msg.time = GetTickCount(); msg.pt.x = 0; msg.pt.y = 0; return MSG_AddMsg( appMsgQueue, &msg, 0 ); } /*********************************************************************** * SendMessage (USER.111) */ LONG SendMessage( HWND hwnd, WORD msg, WORD wParam, LONG lParam ) { WND * wndPtr; wndPtr = WIN_FindWndPtr( hwnd ); if (!wndPtr) return 0; return CallWindowProc( wndPtr->lpfnWndProc, hwnd, msg, wParam, lParam ); } /*********************************************************************** * WaitMessage (USER.112) */ void WaitMessage( void ) { MSG msg; LONG nextExp; /* Next timer expiration time */ XEvent event; while (XPending( display )) { XNextEvent( display, &event ); EVENT_ProcessEvent( &event ); } while(1) { if ((appMsgQueue->wPostQMsg) || (appMsgQueue->status & (QS_SENDMESSAGE | QS_PAINT)) || (appMsgQueue->msgCount) || (sysMsgQueue->msgCount) ) break; nextExp = -1; if ((appMsgQueue->status & QS_TIMER) && TIMER_CheckTimer( &nextExp, &msg, 0, FALSE)) break; if (!XPending( display ) && (nextExp != -1)) { fd_set read_set; struct timeval timeout; int fd = ConnectionNumber(display); FD_ZERO( &read_set ); FD_SET( fd, &read_set ); timeout.tv_sec = nextExp / 1000; timeout.tv_usec = (nextExp % 1000) * 1000; if (select( fd+1, &read_set, NULL, NULL, &timeout ) != 1) continue; /* On timeout or error, restart from the start */ } XNextEvent( display, &event ); EVENT_ProcessEvent( &event ); } } /*********************************************************************** * TranslateMessage (USER.113) */ BOOL TranslateMessage( LPMSG msg ) { int message = msg->message; if ((message == WM_KEYDOWN) || (message == WM_KEYUP) || (message == WM_SYSKEYDOWN) || (message == WM_SYSKEYUP)) { #ifdef DEBUG_MSG printf( "Translating key message\n" ); #endif return TRUE; } return FALSE; } /*********************************************************************** * DispatchMessage (USER.114) */ LONG DispatchMessage( LPMSG msg ) { WND * wndPtr; LONG retval; int painting; #ifdef DEBUG_MSG printf( "Dispatch message hwnd=%08x msg=0x%x w=%d l=%d time=%u pt=%d,%d\n", msg->hwnd, msg->message, msg->wParam, msg->lParam, msg->time, msg->pt.x, msg->pt.y ); #endif /* Process timer messages */ if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER)) { if (msg->lParam) return CallWindowProc( (FARPROC)msg->lParam, msg->hwnd, msg->message, msg->wParam, GetTickCount() ); } if (!msg->hwnd) return 0; if (!(wndPtr = WIN_FindWndPtr( msg->hwnd ))) return 0; if (!wndPtr->lpfnWndProc) return 0; painting = (msg->message == WM_PAINT); if (painting) wndPtr->flags |= WIN_NEEDS_BEGINPAINT; retval = CallWindowProc( wndPtr->lpfnWndProc, msg->hwnd, msg->message, msg->wParam, msg->lParam ); if (painting && (wndPtr->flags & WIN_NEEDS_BEGINPAINT)) { #ifdef DEBUG_WIN printf( "BeginPaint not called on WM_PAINT for hwnd %d!\n", msg->hwnd); #endif wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT; } return retval; } /*********************************************************************** * GetMessagePos (USER.119) */ DWORD GetMessagePos(void) { return appMsgQueue->GetMessagePosVal; } /*********************************************************************** * GetMessageTime (USER.120) */ LONG GetMessageTime(void) { return appMsgQueue->GetMessageTimeVal; } /*********************************************************************** * GetMessageExtraInfo (USER.288) */ LONG GetMessageExtraInfo(void) { return appMsgQueue->GetMessageExtraInfoVal; } /*********************************************************************** * RegisterWindowMessage (USER.118) */ WORD RegisterWindowMessage( LPCSTR str ) { WORD wRet; #ifdef DEBUG_MSG printf( "RegisterWindowMessage: '%s'\n", str ); #endif wRet = GlobalAddAtom( str ); return wRet; } /*********************************************************************** * GetTickCount (USER.13) */ DWORD GetTickCount() { struct timeval t; gettimeofday( &t, NULL ); return (t.tv_sec * 1000) + (t.tv_usec / 1000); }