Started moving some X11 window management code to windows/x11drv.

[wine.git] / windows / message.c

/*
 * Message queues related functions
 *
 * Copyright 1993, 1994 Alexandre Julliard
 */

#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <sys/time.h>
#include <sys/types.h>

#include "message.h"
#include "win.h"
#include "gdi.h"
#include "sysmetrics.h"
#include "heap.h"
#include "hook.h"
#include "keyboard.h"
#include "spy.h"
#include "winpos.h"
#include "atom.h"
#include "dde.h"
#include "queue.h"
#include "winproc.h"
#include "task.h"
#include "process.h"
#include "thread.h"
#include "options.h"
#include "struct32.h"
#include "debug.h"

#define WM_NCMOUSEFIRST         WM_NCMOUSEMOVE
#define WM_NCMOUSELAST          WM_NCMBUTTONDBLCLK

typedef enum { SYSQ_MSG_ABANDON, SYSQ_MSG_SKIP, 
               SYSQ_MSG_ACCEPT, SYSQ_MSG_CONTINUE } SYSQ_STATUS;

extern MESSAGEQUEUE *pCursorQueue;                       /* queue.c */
extern MESSAGEQUEUE *pActiveQueue;

DWORD MSG_WineStartTicks; /* Ticks at Wine startup */

static UINT32 doubleClickSpeed = 452;
static INT32 debugSMRL = 0;       /* intertask SendMessage() recursion level */

/***********************************************************************
 *           MSG_CheckFilter
 */
BOOL32 MSG_CheckFilter(WORD uMsg, DWORD filter)
{
   if( filter )
       return (uMsg >= LOWORD(filter) && uMsg <= HIWORD(filter));
   return TRUE;
}

/***********************************************************************
 *           MSG_SendParentNotify
 *
 * Send a WM_PARENTNOTIFY to all ancestors of the given window, unless
 * the window has the WS_EX_NOPARENTNOTIFY style.
 */
static void MSG_SendParentNotify(WND* wndPtr, WORD event, WORD idChild, LPARAM lValue)
{
#define lppt ((LPPOINT16)&lValue)

    /* pt has to be in the client coordinates of the parent window */

    MapWindowPoints16( 0, wndPtr->hwndSelf, lppt, 1 );
    while (wndPtr)
    {
        if (!(wndPtr->dwStyle & WS_CHILD) || (wndPtr->dwExStyle & WS_EX_NOPARENTNOTIFY)) break;
        lppt->x += wndPtr->rectClient.left;
        lppt->y += wndPtr->rectClient.top;
        wndPtr = wndPtr->parent;
        SendMessage32A( wndPtr->hwndSelf, WM_PARENTNOTIFY,
                        MAKEWPARAM( event, idChild ), lValue );
    }
#undef lppt
}


/***********************************************************************
 *           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, left in the queue, or skipped entirely (in this case
 * HIWORD contains hit test code).
 */
static DWORD MSG_TranslateMouseMsg( HWND16 hTopWnd, DWORD filter, 
                                    MSG16 *msg, BOOL32 remove, WND* pWndScope )
{
    static DWORD   dblclk_time_limit = 0;
    static UINT16     clk_message = 0;
    static HWND16     clk_hwnd = 0;
    static POINT16    clk_pos = { 0, 0 };

    WND *pWnd;
    HWND16 hWnd;
    INT16 ht, hittest, sendSC = 0;
    UINT16 message = msg->message;
    POINT16 screen_pt, pt;
    HANDLE16 hQ = GetTaskQueue(0);
    MESSAGEQUEUE *queue = (MESSAGEQUEUE *)GlobalLock16(hQ);
    BOOL32 eatMsg = FALSE;
    BOOL32 mouseClick = ((message == WM_LBUTTONDOWN) ||
                         (message == WM_RBUTTONDOWN) ||
                         (message == WM_MBUTTONDOWN))?1:0;
    SYSQ_STATUS ret = 0;

      /* Find the window */

    ht = hittest = HTCLIENT;
    hWnd = GetCapture16();
    if( !hWnd )
    {
        ht = hittest = WINPOS_WindowFromPoint( pWndScope, msg->pt, &pWnd );
        if( !pWnd ) pWnd = WIN_GetDesktop();
        hWnd = pWnd->hwndSelf;
        sendSC = 1;
    } 
    else 
    {
        pWnd = WIN_FindWndPtr(hWnd);
        ht = EVENT_GetCaptureInfo();
    }

        /* stop if not the right queue */

    if (pWnd->hmemTaskQ != hQ)
    {
        /* Not for the current task */
        if (queue) QUEUE_ClearWakeBit( queue, QS_MOUSE );
        /* Wake up the other task */
        queue = (MESSAGEQUEUE *)GlobalLock16( pWnd->hmemTaskQ );
        if (queue) QUEUE_SetWakeBit( queue, QS_MOUSE );
        return SYSQ_MSG_ABANDON;
    }

        /* check if hWnd is within hWndScope */

    if( hTopWnd && hWnd != hTopWnd )
        if( !IsChild16(hTopWnd, hWnd) ) return SYSQ_MSG_CONTINUE;

    if( mouseClick )
    {
        /* translate double clicks -
         * note that ...MOUSEMOVEs can slip in between
         * ...BUTTONDOWN and ...BUTTONDBLCLK messages */

        if( pWnd->class->style & CS_DBLCLKS || ht != HTCLIENT )
        {
           if ((message == clk_message) && (hWnd == clk_hwnd) &&
               (msg->time - dblclk_time_limit < doubleClickSpeed) &&
               (abs(msg->pt.x - clk_pos.x) < SYSMETRICS_CXDOUBLECLK/2) &&
               (abs(msg->pt.y - clk_pos.y) < SYSMETRICS_CYDOUBLECLK/2))
           {
              message += (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
              mouseClick++;   /* == 2 */
           }
        }
    }
    screen_pt = pt = msg->pt;

    if (hittest != HTCLIENT)
    {
        message += ((INT16)WM_NCMOUSEMOVE - WM_MOUSEMOVE);
        msg->wParam = hittest;
    }
    else ScreenToClient16( hWnd, &pt );

        /* check message filter */

    if (!MSG_CheckFilter(message, filter)) return SYSQ_MSG_CONTINUE;

    pCursorQueue = queue;

        /* call WH_MOUSE */

    if (HOOK_IsHooked( WH_MOUSE ))
    { 
        MOUSEHOOKSTRUCT16 *hook = SEGPTR_NEW(MOUSEHOOKSTRUCT16);
        if( hook )
        {
            hook->pt           = screen_pt;
            hook->hwnd         = hWnd;
            hook->wHitTestCode = hittest;
            hook->dwExtraInfo  = 0;
            ret = HOOK_CallHooks16( WH_MOUSE, remove ? HC_ACTION : HC_NOREMOVE,
                                    message, (LPARAM)SEGPTR_GET(hook) );
            SEGPTR_FREE(hook);
        }
        if( ret ) return MAKELONG((INT16)SYSQ_MSG_SKIP, hittest);
    }

    if ((hittest == HTERROR) || (hittest == HTNOWHERE)) 
        eatMsg = sendSC = 1;
    else if( remove && mouseClick )
    {
        HWND32 hwndTop = WIN_GetTopParent( hWnd );

        if( mouseClick == 1 )
        {
            /* set conditions */
            dblclk_time_limit = msg->time;
               clk_message = msg->message;
               clk_hwnd = hWnd;
               clk_pos = screen_pt;
        } else 
            /* got double click - zero them out */
            dblclk_time_limit = clk_hwnd = 0;

        if( sendSC )
        {
            /* Send the WM_PARENTNOTIFY,
             * note that even for double/nonclient clicks
             * notification message is still WM_L/M/RBUTTONDOWN.
             */

            MSG_SendParentNotify( pWnd, msg->message, 0, MAKELPARAM(screen_pt.x, screen_pt.y) );

            /* Activate the window if needed */

            if (hWnd != GetActiveWindow16() && hWnd != GetDesktopWindow16())
            {
                LONG ret = SendMessage16( hWnd, WM_MOUSEACTIVATE, hwndTop,
                                          MAKELONG( hittest, message ) );

                if ((ret == MA_ACTIVATEANDEAT) || (ret == MA_NOACTIVATEANDEAT))
                         eatMsg = TRUE;

                if (((ret == MA_ACTIVATE) || (ret == MA_ACTIVATEANDEAT)) 
                      && hwndTop != GetActiveWindow16() )
                      if (!WINPOS_SetActiveWindow( hwndTop, TRUE , TRUE ))
                         eatMsg = TRUE;
            }
        }
    } else sendSC = (remove && sendSC);

     /* Send the WM_SETCURSOR message */

    if (sendSC)
        SendMessage16( hWnd, WM_SETCURSOR, (WPARAM16)hWnd,
                       MAKELONG( hittest, message ));
    if (eatMsg) return MAKELONG( (UINT16)SYSQ_MSG_SKIP, hittest);

    msg->hwnd    = hWnd;
    msg->message = message;
    msg->lParam  = MAKELONG( pt.x, pt.y );
    return SYSQ_MSG_ACCEPT;
}


/***********************************************************************
 *           MSG_TranslateKbdMsg
 *
 * Translate an keyboard hardware event into a real message.
 */
static DWORD MSG_TranslateKbdMsg( HWND16 hTopWnd, DWORD filter,
                                  MSG16 *msg, BOOL32 remove )
{
    WORD message = msg->message;
    HWND16 hWnd = GetFocus16();
    WND *pWnd;

      /* Should check Ctrl-Esc and PrintScreen here */

    if (!hWnd)
    {
          /* Send the message to the active window instead,  */
          /* translating messages to their WM_SYS equivalent */

        hWnd = GetActiveWindow16();

        if( message < WM_SYSKEYDOWN )
            message += WM_SYSKEYDOWN - WM_KEYDOWN;
    }
    pWnd = WIN_FindWndPtr( hWnd );
    if (pWnd && (pWnd->hmemTaskQ != GetTaskQueue(0)))
    {
        /* Not for the current task */
        MESSAGEQUEUE *queue = (MESSAGEQUEUE *)GlobalLock16( GetTaskQueue(0) );
        if (queue) QUEUE_ClearWakeBit( queue, QS_KEY );
        /* Wake up the other task */
        queue = (MESSAGEQUEUE *)GlobalLock16( pWnd->hmemTaskQ );
        if (queue) QUEUE_SetWakeBit( queue, QS_KEY );
        return SYSQ_MSG_ABANDON;
    }

    if (hTopWnd && hWnd != hTopWnd)
        if (!IsChild16(hTopWnd, hWnd)) return SYSQ_MSG_CONTINUE;
    if (!MSG_CheckFilter(message, filter)) return SYSQ_MSG_CONTINUE;

    msg->hwnd = hWnd;
    msg->message = message;

    return (HOOK_CallHooks16( WH_KEYBOARD, remove ? HC_ACTION : HC_NOREMOVE,
                              msg->wParam, msg->lParam )
            ? SYSQ_MSG_SKIP : SYSQ_MSG_ACCEPT);
}


/***********************************************************************
 *           MSG_JournalRecordMsg
 *
 * Build an EVENTMSG structure and call JOURNALRECORD hook
 */
static void MSG_JournalRecordMsg( MSG16 *msg )
{
    EVENTMSG16 *event = SEGPTR_NEW(EVENTMSG16);
    if (!event) return;
    event->message = msg->message;
    event->time = msg->time;
    if ((msg->message >= WM_KEYFIRST) && (msg->message <= WM_KEYLAST))
    {
        event->paramL = (msg->wParam & 0xFF) | (HIWORD(msg->lParam) << 8);
        event->paramH = msg->lParam & 0x7FFF;  
        if (HIWORD(msg->lParam) & 0x0100)
            event->paramH |= 0x8000;               /* special_key - bit */
        HOOK_CallHooks16( WH_JOURNALRECORD, HC_ACTION, 0,
                          (LPARAM)SEGPTR_GET(event) );
    }
    else if ((msg->message >= WM_MOUSEFIRST) && (msg->message <= WM_MOUSELAST))
    {
        event->paramL = LOWORD(msg->lParam);       /* X pos */
        event->paramH = HIWORD(msg->lParam);       /* Y pos */ 
        ClientToScreen16( msg->hwnd, (LPPOINT16)&event->paramL );
        HOOK_CallHooks16( WH_JOURNALRECORD, HC_ACTION, 0,
                          (LPARAM)SEGPTR_GET(event) );
    }
    else if ((msg->message >= WM_NCMOUSEFIRST) &&
             (msg->message <= WM_NCMOUSELAST))
    {
        event->paramL = LOWORD(msg->lParam);       /* X pos */
        event->paramH = HIWORD(msg->lParam);       /* Y pos */ 
        event->message += WM_MOUSEMOVE-WM_NCMOUSEMOVE;/* give no info about NC area */
        HOOK_CallHooks16( WH_JOURNALRECORD, HC_ACTION, 0,
                          (LPARAM)SEGPTR_GET(event) );
    }
    SEGPTR_FREE(event);
}

/***********************************************************************
 *          MSG_JournalPlayBackMsg
 *
 * Get an EVENTMSG struct via call JOURNALPLAYBACK hook function 
 */
static int MSG_JournalPlayBackMsg(void)
{
 EVENTMSG16 *tmpMsg;
 long wtime,lParam;
 WORD keyDown,i,wParam,result=0;

 if ( HOOK_IsHooked( WH_JOURNALPLAYBACK ) )
 {
  tmpMsg = SEGPTR_NEW(EVENTMSG16);
  wtime=HOOK_CallHooks16( WH_JOURNALPLAYBACK, HC_GETNEXT, 0,
                          (LPARAM)SEGPTR_GET(tmpMsg));
  /*  TRACE(msg,"Playback wait time =%ld\n",wtime); */
  if (wtime<=0)
  {
   wtime=0;
   if ((tmpMsg->message>= WM_KEYFIRST) && (tmpMsg->message <= WM_KEYLAST))
   {
     wParam=tmpMsg->paramL & 0xFF;
     lParam=MAKELONG(tmpMsg->paramH&0x7ffff,tmpMsg->paramL>>8);
     if (tmpMsg->message == WM_KEYDOWN || tmpMsg->message == WM_SYSKEYDOWN)
     {
       for (keyDown=i=0; i<256 && !keyDown; i++)
          if (InputKeyStateTable[i] & 0x80)
            keyDown++;
       if (!keyDown)
         lParam |= 0x40000000;       
       AsyncKeyStateTable[wParam]=InputKeyStateTable[wParam] |= 0x80;
     }  
     else                                       /* WM_KEYUP, WM_SYSKEYUP */
     {
       lParam |= 0xC0000000;      
       AsyncKeyStateTable[wParam]=InputKeyStateTable[wParam] &= ~0x80;
     }
     if (InputKeyStateTable[VK_MENU] & 0x80)
       lParam |= 0x20000000;     
     if (tmpMsg->paramH & 0x8000)              /*special_key bit*/
       lParam |= 0x01000000;
     hardware_event( tmpMsg->message, wParam, lParam,0, 0, tmpMsg->time, 0 );     
   }
   else
   {
    if ((tmpMsg->message>= WM_MOUSEFIRST) && (tmpMsg->message <= WM_MOUSELAST))
    {
     switch (tmpMsg->message)
     {
      case WM_LBUTTONDOWN:
          MouseButtonsStates[0]=AsyncMouseButtonsStates[0]=TRUE;break;
      case WM_LBUTTONUP:
          MouseButtonsStates[0]=AsyncMouseButtonsStates[0]=FALSE;break;
      case WM_MBUTTONDOWN:
          MouseButtonsStates[1]=AsyncMouseButtonsStates[1]=TRUE;break;
      case WM_MBUTTONUP:
          MouseButtonsStates[1]=AsyncMouseButtonsStates[1]=FALSE;break;
      case WM_RBUTTONDOWN:
          MouseButtonsStates[2]=AsyncMouseButtonsStates[2]=TRUE;break;
      case WM_RBUTTONUP:
          MouseButtonsStates[2]=AsyncMouseButtonsStates[2]=FALSE;break;      
     }
     AsyncKeyStateTable[VK_LBUTTON]= InputKeyStateTable[VK_LBUTTON] = MouseButtonsStates[0] ? 0x80 : 0;
     AsyncKeyStateTable[VK_MBUTTON]= InputKeyStateTable[VK_MBUTTON] = MouseButtonsStates[1] ? 0x80 : 0;
     AsyncKeyStateTable[VK_RBUTTON]= InputKeyStateTable[VK_RBUTTON] = MouseButtonsStates[2] ? 0x80 : 0;
     SetCursorPos32(tmpMsg->paramL,tmpMsg->paramH);
     lParam=MAKELONG(tmpMsg->paramL,tmpMsg->paramH);
     wParam=0;             
     if (MouseButtonsStates[0]) wParam |= MK_LBUTTON;
     if (MouseButtonsStates[1]) wParam |= MK_MBUTTON;
     if (MouseButtonsStates[2]) wParam |= MK_RBUTTON;
     hardware_event( tmpMsg->message, wParam, lParam,  
                     tmpMsg->paramL, tmpMsg->paramH, tmpMsg->time, 0 );
    }
   }
   HOOK_CallHooks16( WH_JOURNALPLAYBACK, HC_SKIP, 0,
                     (LPARAM)SEGPTR_GET(tmpMsg));
  }
  else
  {
    if( tmpMsg->message == WM_QUEUESYNC )
        if (HOOK_IsHooked( WH_CBT ))
            HOOK_CallHooks16( WH_CBT, HCBT_QS, 0, 0L);

    result= QS_MOUSE | QS_KEY; /* ? */
  }
  SEGPTR_FREE(tmpMsg);
 }
 return result;
} 

/***********************************************************************
 *           MSG_PeekHardwareMsg
 *
 * Peek for a hardware message matching the hwnd and message filters.
 */
static BOOL32 MSG_PeekHardwareMsg( MSG16 *msg, HWND16 hwnd, DWORD filter,
                                   BOOL32 remove )
{
    DWORD status = SYSQ_MSG_ACCEPT;
    MESSAGEQUEUE *sysMsgQueue = QUEUE_GetSysQueue();
    int i, kbd_msg, pos = sysMsgQueue->nextMessage;

    /* FIXME: there has to be a better way to do this */
    joySendMessages();

    /* If the queue is empty, attempt to fill it */
    if (!sysMsgQueue->msgCount && THREAD_IsWin16( THREAD_Current() )
                               && TSXPending(display))
        EVENT_WaitNetEvent( FALSE, FALSE );

    for (i = kbd_msg = 0; i < sysMsgQueue->msgCount; i++, pos++)
    {
        if (pos >= sysMsgQueue->queueSize) pos = 0;
        *msg = sysMsgQueue->messages[pos].msg;

          /* Translate message */

        if ((msg->message >= WM_MOUSEFIRST) && (msg->message <= WM_MOUSELAST))
        {
            HWND32 hWndScope = (HWND32)sysMsgQueue->messages[pos].extraInfo;

            status = MSG_TranslateMouseMsg(hwnd, filter, msg, remove, 
                                          (Options.managed && IsWindow32(hWndScope) ) 
                                           ? WIN_FindWndPtr(hWndScope) : WIN_GetDesktop() );
            kbd_msg = 0;
        }
        else if ((msg->message >= WM_KEYFIRST) && (msg->message <= WM_KEYLAST))
        {
            status = MSG_TranslateKbdMsg(hwnd, filter, msg, remove);
            kbd_msg = 1;
        }
        else /* Non-standard hardware event */
        {
            HARDWAREHOOKSTRUCT16 *hook;
            if ((hook = SEGPTR_NEW(HARDWAREHOOKSTRUCT16)))
            {
                BOOL32 ret;
                hook->hWnd     = msg->hwnd;
                hook->wMessage = msg->message;
                hook->wParam   = msg->wParam;
                hook->lParam   = msg->lParam;
                ret = HOOK_CallHooks16( WH_HARDWARE,
                                        remove ? HC_ACTION : HC_NOREMOVE,
                                        0, (LPARAM)SEGPTR_GET(hook) );
                SEGPTR_FREE(hook);
                if (ret) 
                {
                    QUEUE_RemoveMsg( sysMsgQueue, pos );
                    continue;
                }
                status = SYSQ_MSG_ACCEPT; 
            }
        }

        switch (LOWORD(status))
        {
           case SYSQ_MSG_ACCEPT:
                break;

           case SYSQ_MSG_SKIP:
                if (HOOK_IsHooked( WH_CBT ))
                   if( kbd_msg )
                       HOOK_CallHooks16( WH_CBT, HCBT_KEYSKIPPED, 
                                                 msg->wParam, msg->lParam );
                   else
                   {
                       MOUSEHOOKSTRUCT16 *hook = SEGPTR_NEW(MOUSEHOOKSTRUCT16);
                       if (hook)
                       {
                           hook->pt           = msg->pt;
                           hook->hwnd         = msg->hwnd;
                           hook->wHitTestCode = HIWORD(status);
                           hook->dwExtraInfo  = 0;
                           HOOK_CallHooks16( WH_CBT, HCBT_CLICKSKIPPED ,msg->message,
                                          (LPARAM)SEGPTR_GET(hook) );
                           SEGPTR_FREE(hook);
                       }
                   }

                if (remove)
                    QUEUE_RemoveMsg( sysMsgQueue, pos );
                /* continue */

           case SYSQ_MSG_CONTINUE:
                continue;

           case SYSQ_MSG_ABANDON: 
                return FALSE;
        }

        if (remove)
        {
            if (HOOK_IsHooked( WH_JOURNALRECORD )) MSG_JournalRecordMsg( msg );
            QUEUE_RemoveMsg( sysMsgQueue, pos );
        }
        return TRUE;
    }
    return FALSE;
}


/**********************************************************************
 *           SetDoubleClickTime16   (USER.20)
 */
void WINAPI SetDoubleClickTime16( UINT16 interval )
{
    SetDoubleClickTime32( interval );
}               


/**********************************************************************
 *           SetDoubleClickTime32   (USER32.480)
 */
BOOL32 WINAPI SetDoubleClickTime32( UINT32 interval )
{
    doubleClickSpeed = interval ? interval : 500;
    return TRUE;
}               


/**********************************************************************
 *           GetDoubleClickTime16   (USER.21)
 */
UINT16 WINAPI GetDoubleClickTime16(void)
{
    return doubleClickSpeed;
}               


/**********************************************************************
 *           GetDoubleClickTime32   (USER32.239)
 */
UINT32 WINAPI GetDoubleClickTime32(void)
{
    return doubleClickSpeed;
}               


/***********************************************************************
 *           MSG_SendMessage
 *
 * Implementation of an inter-task SendMessage.
 */
static LRESULT MSG_SendMessage( HQUEUE16 hDestQueue, HWND16 hwnd, UINT16 msg,
                                WPARAM32 wParam, LPARAM lParam, WORD flags )
{
    INT32         prevSMRL = debugSMRL;
    QSMCTRL       qCtrl = { 0, 1};
    MESSAGEQUEUE *queue, *destQ;

    if (!(queue = (MESSAGEQUEUE*)GlobalLock16( GetTaskQueue(0) ))) return 0;
    if (!(destQ = (MESSAGEQUEUE*)GlobalLock16( hDestQueue ))) return 0;

    if (IsTaskLocked() || !IsWindow32(hwnd)) return 0;

    debugSMRL+=4;
    TRACE(sendmsg,"%*sSM: %s [%04x] (%04x -> %04x)\n", 
                    prevSMRL, "", SPY_GetMsgName(msg), msg, queue->self, hDestQueue );

    if( !(queue->wakeBits & QS_SMPARAMSFREE) )
    {
      TRACE(sendmsg,"\tIntertask SendMessage: sleeping since unreplied SendMessage pending\n");
      queue->changeBits &= ~QS_SMPARAMSFREE;
      QUEUE_WaitBits( QS_SMPARAMSFREE );
    }

    /* resume sending */ 

    queue->hWnd       = hwnd;
    queue->msg        = msg;
    queue->wParam     = LOWORD(wParam);
    queue->wParamHigh = HIWORD(wParam);
    queue->lParam     = lParam;
    queue->hPrevSendingTask = destQ->hSendingTask;
    destQ->hSendingTask = GetTaskQueue(0);

    queue->wakeBits &= ~QS_SMPARAMSFREE;
    queue->flags = (queue->flags & ~(QUEUE_SM_WIN32|QUEUE_SM_UNICODE)) | flags;

    TRACE(sendmsg,"%*ssm: smResultInit = %08x\n", prevSMRL, "", (unsigned)&qCtrl);

    queue->smResultInit = &qCtrl;

    QUEUE_SetWakeBit( destQ, QS_SENDMESSAGE );

    /* perform task switch and wait for the result */

    while( qCtrl.bPending )
    {
      if (!(queue->wakeBits & QS_SMRESULT))
      {
        queue->changeBits &= ~QS_SMRESULT;
        if (THREAD_IsWin16( THREAD_Current() ))
          DirectedYield( destQ->hTask );
        else
          QUEUE_Signal( destQ->hTask );
        QUEUE_WaitBits( QS_SMRESULT );
        TRACE(sendmsg,"\tsm: have result!\n");
      }
      /* got something */

      TRACE(sendmsg,"%*ssm: smResult = %08x\n", prevSMRL, "", (unsigned)queue->smResult );

      if (queue->smResult) { /* FIXME, smResult should always be set */
        queue->smResult->lResult = queue->SendMessageReturn;
        queue->smResult->bPending = FALSE;
      }
      queue->wakeBits &= ~QS_SMRESULT;

      if( queue->smResult != &qCtrl )
          ERR(sendmsg, "%*ssm: weird scenes inside the goldmine!\n", prevSMRL, "");
    }
    queue->smResultInit = NULL;
    
    TRACE(sendmsg,"%*sSM: [%04x] returning %08lx\n", prevSMRL, "", msg, qCtrl.lResult);
    debugSMRL-=4;

    return qCtrl.lResult;
}


/***********************************************************************
 *           ReplyMessage16   (USER.115)
 */
void WINAPI ReplyMessage16( LRESULT result )
{
    MESSAGEQUEUE *senderQ;
    MESSAGEQUEUE *queue;

    if (!(queue = (MESSAGEQUEUE*)GlobalLock16( GetTaskQueue(0) ))) return;

    TRACE(msg,"ReplyMessage, queue %04x\n", queue->self);

    while( (senderQ = (MESSAGEQUEUE*)GlobalLock16( queue->InSendMessageHandle)))
    {
      TRACE(msg,"\trpm: replying to %04x (%04x -> %04x)\n",
                          queue->msg, queue->self, senderQ->self);

      if( queue->wakeBits & QS_SENDMESSAGE )
      {
        QUEUE_ReceiveMessage( queue );
        continue; /* ReceiveMessage() already called us */
      }

      if(!(senderQ->wakeBits & QS_SMRESULT) ) break;
      if (THREAD_IsWin16(THREAD_Current())) OldYield();
    } 
    if( !senderQ ) { TRACE(msg,"\trpm: done\n"); return; }

    senderQ->SendMessageReturn = result;
    TRACE(msg,"\trpm: smResult = %08x, result = %08lx\n", 
                        (unsigned)queue->smResultCurrent, result );

    senderQ->smResult = queue->smResultCurrent;
    queue->InSendMessageHandle = 0;

    QUEUE_SetWakeBit( senderQ, QS_SMRESULT );
    if (THREAD_IsWin16(THREAD_Current())) DirectedYield( queue->hSendingTask );
}


/***********************************************************************
 *           MSG_PeekMessage
 */
static BOOL32 MSG_PeekMessage( LPMSG16 msg, HWND16 hwnd, WORD first, WORD last,
                               WORD flags, BOOL32 peek )
{
    int pos, mask;
    MESSAGEQUEUE *msgQueue;
    HQUEUE16 hQueue;

#ifdef CONFIG_IPC
    DDE_TestDDE(hwnd);  /* do we have dde handling in the window ?*/
    DDE_GetRemoteMessage();
#endif  /* CONFIG_IPC */

    mask = QS_POSTMESSAGE | QS_SENDMESSAGE;  /* Always selected */
    if (first || last)
    {
        if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
        if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
             ((first <= WM_NCMOUSELAST) && (last >= WM_NCMOUSEFIRST)) ) 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_TIMER | QS_PAINT;

    if (IsTaskLocked()) flags |= PM_NOYIELD;

    /* Never yield on Win32 threads */
    if (!THREAD_IsWin16(THREAD_Current())) flags |= PM_NOYIELD;

    while(1)
    {    
        hQueue   = GetTaskQueue(0);
        msgQueue = (MESSAGEQUEUE *)GlobalLock16( hQueue );
        if (!msgQueue) return FALSE;
        msgQueue->changeBits = 0;

        /* First handle a message put by SendMessage() */

        while (msgQueue->wakeBits & QS_SENDMESSAGE)
            QUEUE_ReceiveMessage( msgQueue );

        /* Now handle a WM_QUIT message */

        if (msgQueue->wPostQMsg &&
           (!first || WM_QUIT >= first) && 
           (!last || WM_QUIT <= last) )
        {
            msg->hwnd    = hwnd;
            msg->message = WM_QUIT;
            msg->wParam  = msgQueue->wExitCode;
            msg->lParam  = 0;
            if (flags & PM_REMOVE) msgQueue->wPostQMsg = 0;
            break;
        }
    
        /* Now find a normal message */

        if (((msgQueue->wakeBits & mask) & QS_POSTMESSAGE) &&
            ((pos = QUEUE_FindMsg( msgQueue, hwnd, first, last )) != -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) QUEUE_RemoveMsg( msgQueue, pos );
            break;
        }

        msgQueue->changeBits |= MSG_JournalPlayBackMsg();

        /* Now find a hardware event */

        if (((msgQueue->wakeBits & mask) & (QS_MOUSE | QS_KEY)) &&
            MSG_PeekHardwareMsg( msg, hwnd, MAKELONG(first,last), flags & PM_REMOVE ))
        {
            /* Got one */
            msgQueue->GetMessageTimeVal      = msg->time;
            msgQueue->GetMessagePosVal       = *(DWORD *)&msg->pt;
            msgQueue->GetMessageExtraInfoVal = 0;  /* Always 0 for now */
            break;
        }

        /* Check again for SendMessage */

        while (msgQueue->wakeBits & QS_SENDMESSAGE)
            QUEUE_ReceiveMessage( msgQueue );

        /* Now find a WM_PAINT message */

        if ((msgQueue->wakeBits & mask) & QS_PAINT)
        {
            WND* wndPtr;
            msg->hwnd = WIN_FindWinToRepaint( hwnd , hQueue );
            msg->message = WM_PAINT;
            msg->wParam = 0;
            msg->lParam = 0;

            if ((wndPtr = WIN_FindWndPtr(msg->hwnd)))
            {
                if( wndPtr->dwStyle & WS_MINIMIZE &&
                    wndPtr->class->hIcon )
                {
                    msg->message = WM_PAINTICON;
                    msg->wParam = 1;
                }

                if( !hwnd || msg->hwnd == hwnd || IsChild16(hwnd,msg->hwnd) )
                {
                    if( wndPtr->flags & WIN_INTERNAL_PAINT && !wndPtr->hrgnUpdate)
                    {
                        wndPtr->flags &= ~WIN_INTERNAL_PAINT;
                        QUEUE_DecPaintCount( hQueue );
                    }
                    break;
                }
            }
        }

        /* Check for timer messages, but yield first */

        if (!(flags & PM_NOYIELD))
        {
            UserYield();
            while (msgQueue->wakeBits & QS_SENDMESSAGE)
                QUEUE_ReceiveMessage( msgQueue );
        }
        if ((msgQueue->wakeBits & mask) & QS_TIMER)
        {
            if (TIMER_GetTimerMsg(msg, hwnd, hQueue, flags & PM_REMOVE)) break;
        }

        if (peek)
        {
            if (!(flags & PM_NOYIELD)) UserYield();
            return FALSE;
        }
        msgQueue->wakeMask = mask;
        QUEUE_WaitBits( mask );
    }

      /* We got a message */
    if (flags & PM_REMOVE)
    {
        WORD message = msg->message;

        if (message == WM_KEYDOWN || message == WM_SYSKEYDOWN)
        {
            BYTE *p = &QueueKeyStateTable[msg->wParam & 0xff];

            if (!(*p & 0x80))
                *p ^= 0x01;
            *p |= 0x80;
        }
        else if (message == WM_KEYUP || message == WM_SYSKEYUP)
            QueueKeyStateTable[msg->wParam & 0xff] &= ~0x80;
    }
    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).
 */
BOOL32 MSG_InternalGetMessage( MSG16 *msg, HWND32 hwnd, HWND32 hwndOwner,
                               WPARAM32 code, WORD flags, BOOL32 sendIdle ) 
{
    for (;;)
    {
        if (sendIdle)
        {
            if (!MSG_PeekMessage( msg, 0, 0, 0, flags, TRUE ))
            {
                  /* No message present -> send ENTERIDLE and wait */
                if (IsWindow32(hwndOwner))
                    SendMessage16( hwndOwner, WM_ENTERIDLE,
                                   code, (LPARAM)hwnd );
                MSG_PeekMessage( msg, 0, 0, 0, flags, FALSE );
            }
        }
        else  /* Always wait for a message */
            MSG_PeekMessage( msg, 0, 0, 0, flags, FALSE );

        /* Call message filters */

        if (HOOK_IsHooked( WH_SYSMSGFILTER ) || HOOK_IsHooked( WH_MSGFILTER ))
        {
            MSG16 *pmsg = SEGPTR_NEW(MSG16);
            if (pmsg)
            {
                BOOL32 ret;
                *pmsg = *msg;
                ret = ((BOOL16)HOOK_CallHooks16( WH_SYSMSGFILTER, code, 0,
                                                 (LPARAM)SEGPTR_GET(pmsg) ) ||
                       (BOOL16)HOOK_CallHooks16( WH_MSGFILTER, code, 0,
                                                 (LPARAM)SEGPTR_GET(pmsg) ));
                SEGPTR_FREE(pmsg);
                if (ret)
                {
                    /* Message filtered -> remove it from the queue */
                    /* if it's still there. */
                    if (!(flags & PM_REMOVE))
                        MSG_PeekMessage( msg, 0, 0, 0, PM_REMOVE, TRUE );
                    continue;
                }
            }
        }

        return (msg->message != WM_QUIT);
    }
}


/***********************************************************************
 *           PeekMessage16   (USER.109)
 */
BOOL16 WINAPI PeekMessage16( LPMSG16 msg, HWND16 hwnd, UINT16 first,
                             UINT16 last, UINT16 flags )
{
    return MSG_PeekMessage( msg, hwnd, first, last, flags, TRUE );
}

/***********************************************************************
 *         PeekMessageA
 */
BOOL32 WINAPI PeekMessage32A( LPMSG32 lpmsg, HWND32 hwnd,
                              UINT32 min,UINT32 max,UINT32 wRemoveMsg)
{
        MSG16 msg;
        BOOL32 ret;
        ret=PeekMessage16(&msg,hwnd,min,max,wRemoveMsg);
        /* FIXME: should translate the message to Win32 */
        STRUCT32_MSG16to32(&msg,lpmsg);
        return ret;
}

/***********************************************************************
 *         PeekMessageW             Check queue for messages
 *
 * Checks for a message in the thread's queue, filtered as for
 * GetMessage(). Returns immediately whether a message is available
 * or not.
 *
 * Whether a retrieved message is removed from the queue is set by the
 * _wRemoveMsg_ flags, which should be one of the following values:
 *
 *    PM_NOREMOVE    Do not remove the message from the queue. 
 *
 *    PM_REMOVE      Remove the message from the queue.
 *
 * In addition, PM_NOYIELD may be combined into _wRemoveMsg_ to
 * request that the system not yield control during PeekMessage();
 * however applications may not rely on scheduling behavior.
 * 
 * RETURNS
 *
 *  Nonzero if a message is available and is retrieved, zero otherwise.
 *
 * CONFORMANCE
 *
 * ECMA-234, Win32
 *
 */
BOOL32 WINAPI PeekMessage32W( 
  LPMSG32 lpmsg,    /* buffer to receive message */
  HWND32 hwnd,      /* restrict to messages for hwnd */
  UINT32 min,       /* minimum message to receive */
  UINT32 max,       /* maximum message to receive */
  UINT32 wRemoveMsg /* removal flags */ 
) {
        /* FIXME: Should perform Unicode translation on specific messages */
        return PeekMessage32A(lpmsg,hwnd,min,max,wRemoveMsg);
}

/***********************************************************************
 *           GetMessage16   (USER.108)
 */
BOOL16 WINAPI GetMessage16( SEGPTR msg, HWND16 hwnd, UINT16 first, UINT16 last)
{
    MSG16 *lpmsg = (MSG16 *)PTR_SEG_TO_LIN(msg);
    MSG_PeekMessage( lpmsg,
                     hwnd, first, last, PM_REMOVE, FALSE );

    TRACE(msg,"message %04x, hwnd %04x, filter(%04x - %04x)\n", lpmsg->message,
                                                                 hwnd, first, last );
    HOOK_CallHooks16( WH_GETMESSAGE, HC_ACTION, 0, (LPARAM)msg );
    return (lpmsg->message != WM_QUIT);
}

/***********************************************************************
 *          GetMessage32A   (USER32.270)
 */
BOOL32 WINAPI GetMessage32A(MSG32* lpmsg,HWND32 hwnd,UINT32 min,UINT32 max)
{
    BOOL32 ret;
    MSG16 *msg = SEGPTR_NEW(MSG16);
    if (!msg) return 0;
    ret=GetMessage16(SEGPTR_GET(msg),(HWND16)hwnd,min,max);
    /* FIXME */
    STRUCT32_MSG16to32(msg,lpmsg);
    SEGPTR_FREE(msg);
    return ret;
}

/***********************************************************************
 *          GetMessage32W   (USER32.274) Retrieve next message
 *
 * GetMessage retrieves the next event from the calling thread's
 * queue and deposits it in *lpmsg.
 *
 * If _hwnd_ is not NULL, only messages for window _hwnd_ and its
 * children as specified by IsChild() are retrieved. If _hwnd_ is NULL
 * all application messages are retrieved.
 *
 * _min_ and _max_ specify the range of messages of interest. If
 * min==max==0, no filtering is performed. Useful examples are
 * WM_KEYFIRST and WM_KEYLAST to retrieve keyboard input, and
 * WM_MOUSEFIRST and WM_MOUSELAST to retrieve mouse input.
 *
 * WM_PAINT messages are not removed from the queue; they remain until
 * processed. Other messages are removed from the queue.
 *
 * RETURNS
 *
 * -1 on error, 0 if message is WM_QUIT, nonzero otherwise.
 *
 * CONFORMANCE
 *
 * ECMA-234, Win32
 * 
 */
BOOL32 WINAPI GetMessage32W(
  MSG32* lpmsg, /* buffer to receive message */
  HWND32 hwnd,  /* restrict to messages for hwnd */
  UINT32 min,   /* minimum message to receive */
  UINT32 max    /* maximum message to receive */
) {
    BOOL32 ret;
    MSG16 *msg = SEGPTR_NEW(MSG16);
    if (!msg) return 0;
    ret=GetMessage16(SEGPTR_GET(msg),(HWND16)hwnd,min,max);
    /* FIXME */
    STRUCT32_MSG16to32(msg,lpmsg);
    SEGPTR_FREE(msg);
    return ret;
}


/***********************************************************************
 *           PostMessage16   (USER.110)
 */
BOOL16 WINAPI PostMessage16( HWND16 hwnd, UINT16 message, WPARAM16 wParam,
                             LPARAM lParam )
{
    MSG16       msg;
    WND         *wndPtr;

    msg.hwnd    = hwnd;
    msg.message = message;
    msg.wParam  = wParam;
    msg.lParam  = lParam;
    msg.time    = GetTickCount();
    msg.pt.x    = 0;
    msg.pt.y    = 0;

#ifdef CONFIG_IPC
    if (DDE_PostMessage(&msg))
       return TRUE;
#endif  /* CONFIG_IPC */
    
    if (hwnd == HWND_BROADCAST)
    {
        TRACE(msg,"HWND_BROADCAST !\n");
        for (wndPtr = WIN_GetDesktop()->child; wndPtr; wndPtr = wndPtr->next)
        {
            if (wndPtr->dwStyle & WS_POPUP || wndPtr->dwStyle & WS_CAPTION)
            {
                TRACE(msg,"BROADCAST Message to hWnd=%04x m=%04X w=%04X l=%08lX !\n",
                            wndPtr->hwndSelf, message, wParam, lParam);
                PostMessage16( wndPtr->hwndSelf, message, wParam, lParam );
            }
        }
        TRACE(msg,"End of HWND_BROADCAST !\n");
        return TRUE;
    }

    wndPtr = WIN_FindWndPtr( hwnd );
    if (!wndPtr || !wndPtr->hmemTaskQ) return FALSE;

    return QUEUE_AddMsg( wndPtr->hmemTaskQ, &msg, 0 );
}


/***********************************************************************
 *           PostMessage32A   (USER32.419)
 */
BOOL32 WINAPI PostMessage32A( HWND32 hwnd, UINT32 message, WPARAM32 wParam,
                              LPARAM lParam )
{
  /* FIXME */
  if (message&0xffff0000)
    FIXME(msg,"message is truncated from %d to %d\n", message, message&0xffff);
  if (wParam&0xffff0000)
    FIXME(msg,"wParam is truncated from %d to %d\n", wParam, wParam&0xffff);
  return PostMessage16( hwnd, message, wParam, lParam );
}


/***********************************************************************
 *           PostMessage32W   (USER32.420)
 */
BOOL32 WINAPI PostMessage32W( HWND32 hwnd, UINT32 message, WPARAM32 wParam,
                              LPARAM lParam )
{
  /* FIXME */
  if (message&0xffff0000)
    FIXME(msg,"message is truncated from %d to %d\n", message, message&0xffff);
  if (wParam&0xffff0000)
    FIXME(msg,"wParam is truncated from %d to %d\n", wParam, wParam&0xffff);
  return PostMessage16( hwnd, message, wParam, lParam );
}


/***********************************************************************
 *           PostAppMessage16   (USER.116)
 */
BOOL16 WINAPI PostAppMessage16( HTASK16 hTask, UINT16 message, WPARAM16 wParam,
                                LPARAM lParam )
{
    MSG16 msg;

    if (GetTaskQueue(hTask) == 0) return FALSE;
    msg.hwnd    = 0;
    msg.message = message;
    msg.wParam  = wParam;
    msg.lParam  = lParam;
    msg.time    = GetTickCount();
    msg.pt.x    = 0;
    msg.pt.y    = 0;

    return QUEUE_AddMsg( GetTaskQueue(hTask), &msg, 0 );
}


/***********************************************************************
 *           SendMessage16   (USER.111)
 */
LRESULT WINAPI SendMessage16( HWND16 hwnd, UINT16 msg, WPARAM16 wParam,
                              LPARAM lParam)
{
    WND * wndPtr;
    WND **list, **ppWnd;
    LRESULT ret;

#ifdef CONFIG_IPC
    MSG16 DDE_msg = { hwnd, msg, wParam, lParam };
    if (DDE_SendMessage(&DDE_msg)) return TRUE;
#endif  /* CONFIG_IPC */

    if (hwnd == HWND_BROADCAST)
    {
        if (!(list = WIN_BuildWinArray( WIN_GetDesktop(), 0, NULL )))
            return TRUE;
        TRACE(msg,"HWND_BROADCAST !\n");
        for (ppWnd = list; *ppWnd; ppWnd++)
        {
            wndPtr = *ppWnd;
            if (!IsWindow32(wndPtr->hwndSelf)) continue;
            if (wndPtr->dwStyle & WS_POPUP || wndPtr->dwStyle & WS_CAPTION)
            {
                TRACE(msg,"BROADCAST Message to hWnd=%04x m=%04X w=%04lX l=%08lX !\n",
                            wndPtr->hwndSelf, msg, (DWORD)wParam, lParam);
                SendMessage16( wndPtr->hwndSelf, msg, wParam, lParam );
            }
        }
        HeapFree( SystemHeap, 0, list );
        TRACE(msg,"End of HWND_BROADCAST !\n");
        return TRUE;
    }

    if (HOOK_IsHooked( WH_CALLWNDPROC ))
    {
        LPCWPSTRUCT16 pmsg;

        if ((pmsg = SEGPTR_NEW(CWPSTRUCT16)))
        {
            pmsg->hwnd   = hwnd;
            pmsg->message= msg;
            pmsg->wParam = wParam;
            pmsg->lParam = lParam;
            HOOK_CallHooks16( WH_CALLWNDPROC, HC_ACTION, 1,
                              (LPARAM)SEGPTR_GET(pmsg) );
            hwnd   = pmsg->hwnd;
            msg    = pmsg->message;
            wParam = pmsg->wParam;
            lParam = pmsg->lParam;
            SEGPTR_FREE( pmsg );
        }
    }

    if (!(wndPtr = WIN_FindWndPtr( hwnd )))
    {
        WARN(msg, "invalid hwnd %04x\n", hwnd );
        return 0;
    }
    if (QUEUE_IsExitingQueue(wndPtr->hmemTaskQ))
        return 0;  /* Don't send anything if the task is dying */

    SPY_EnterMessage( SPY_SENDMESSAGE16, hwnd, msg, wParam, lParam );

    if (wndPtr->hmemTaskQ != GetTaskQueue(0))
        ret = MSG_SendMessage( wndPtr->hmemTaskQ, hwnd, msg,
                               wParam, lParam, 0 );
    else
        ret = CallWindowProc16( (WNDPROC16)wndPtr->winproc,
                                hwnd, msg, wParam, lParam );

    SPY_ExitMessage( SPY_RESULT_OK16, hwnd, msg, ret );
    return ret;
}

/************************************************************************
 *           MSG_CallWndProcHook32
 */
static void  MSG_CallWndProcHook32( LPMSG32 pmsg, BOOL32 bUnicode )
{
   CWPSTRUCT32 cwp;

   cwp.lParam = pmsg->lParam;
   cwp.wParam = pmsg->wParam;
   cwp.message = pmsg->message;
   cwp.hwnd = pmsg->hwnd;

   if (bUnicode) HOOK_CallHooks32W(WH_CALLWNDPROC, HC_ACTION, 1, (LPARAM)&cwp);
   else HOOK_CallHooks32A( WH_CALLWNDPROC, HC_ACTION, 1, (LPARAM)&cwp );

   pmsg->lParam = cwp.lParam;
   pmsg->wParam = cwp.wParam;
   pmsg->message = cwp.message;
   pmsg->hwnd = cwp.hwnd;
}

/**********************************************************************
 *           PostThreadMessage32A    (USER32.422)
 *
 * BUGS
 *
 *  Thread-local message queues are not supported.
 * 
 */
BOOL32 WINAPI PostThreadMessage32A(DWORD idThread , UINT32 message,
                                   WPARAM32 wParam, LPARAM lParam )
{
   THDB *thdb = THREAD_ID_TO_THDB(idThread);
   if (!thdb || !thdb->process) return FALSE;

   FIXME(sendmsg, "(...): Should use thread-local message queue!\n");
   return PostAppMessage16(thdb->process->task, message, wParam, lParam);
}

/**********************************************************************
 *           PostThreadMessage32W    (USER32.423)
 *
 * BUGS
 *
 *  Thread-local message queues are not supported.
 * 
 */
BOOL32 WINAPI PostThreadMessage32W(DWORD idThread , UINT32 message,
                                   WPARAM32 wParam, LPARAM lParam )
{
   THDB *thdb = THREAD_ID_TO_THDB(idThread);
   if (!thdb || !thdb->process) return FALSE;

   FIXME(sendmsg, "(...): Should use thread-local message queue!\n");
   return PostAppMessage16(thdb->process->task, message, wParam, lParam);
}

/***********************************************************************
 *           SendMessage32A   (USER32.454)
 */
LRESULT WINAPI SendMessage32A( HWND32 hwnd, UINT32 msg, WPARAM32 wParam,
                               LPARAM lParam )
{
    WND * wndPtr;
    WND **list, **ppWnd;
    LRESULT ret;

    if (hwnd == HWND_BROADCAST || hwnd == HWND_TOPMOST)
    {
        if (!(list = WIN_BuildWinArray( WIN_GetDesktop(), 0, NULL )))
            return TRUE;
        for (ppWnd = list; *ppWnd; ppWnd++)
        {
            wndPtr = *ppWnd;
            if (!IsWindow32(wndPtr->hwndSelf)) continue;
            if (wndPtr->dwStyle & WS_POPUP || wndPtr->dwStyle & WS_CAPTION)
                SendMessage32A( wndPtr->hwndSelf, msg, wParam, lParam );
        }
        HeapFree( SystemHeap, 0, list );
        return TRUE;
    }

    if (HOOK_IsHooked( WH_CALLWNDPROC ))
        MSG_CallWndProcHook32( (LPMSG32)&hwnd, FALSE);

    if (!(wndPtr = WIN_FindWndPtr( hwnd )))
    {
        WARN(msg, "invalid hwnd %08x\n", hwnd );
        return 0;
    }

    if (QUEUE_IsExitingQueue(wndPtr->hmemTaskQ))
        return 0;  /* Don't send anything if the task is dying */

    SPY_EnterMessage( SPY_SENDMESSAGE32, hwnd, msg, wParam, lParam );

    if (wndPtr->hmemTaskQ != GetTaskQueue(0))
        ret = MSG_SendMessage( wndPtr->hmemTaskQ, hwnd, msg, wParam, lParam,
                               QUEUE_SM_WIN32 );
    else
        ret = CallWindowProc32A( (WNDPROC32)wndPtr->winproc,
                                 hwnd, msg, wParam, lParam );

    SPY_ExitMessage( SPY_RESULT_OK32, hwnd, msg, ret );
    return ret;
}


/***********************************************************************
 *           SendMessage32W   (USER32.459)  Send Window Message
 *
 *  Sends a message to the window procedure of the specified window.
 *  SendMessage() will not return until the called window procedure
 *  either returns or calls ReplyMessage().
 *
 *  Use PostMessage() to send message and return immediately. A window
 *  procedure may use InSendMessage() to detect
 *  SendMessage()-originated messages.
 *
 *  Applications which communicate via HWND_BROADCAST may use
 *  RegisterWindowMessage() to obtain a unique message to avoid conflicts
 *  with other applications.
 *
 * CONFORMANCE
 * 
 *  ECMA-234, Win32 
 */
LRESULT WINAPI SendMessage32W( 
  HWND32 hwnd,    /* Window to send message to. If HWND_BROADCAST, 
                 the message will be sent to all top-level windows. */

  UINT32 msg,      /* message */
  WPARAM32 wParam, /* message parameter */
  LPARAM lParam    /* additional message parameter */
) {
    WND * wndPtr;
    WND **list, **ppWnd;
    LRESULT ret;

    if (hwnd == HWND_BROADCAST || hwnd == HWND_TOPMOST)
    {
        if (!(list = WIN_BuildWinArray( WIN_GetDesktop(), 0, NULL )))
            return TRUE;
        for (ppWnd = list; *ppWnd; ppWnd++)
        {
            wndPtr = *ppWnd;
            if (!IsWindow32(wndPtr->hwndSelf)) continue;
            if (wndPtr->dwStyle & WS_POPUP || wndPtr->dwStyle & WS_CAPTION)
                SendMessage32W( wndPtr->hwndSelf, msg, wParam, lParam );
        }
        HeapFree( SystemHeap, 0, list );
        return TRUE;
    }

    if (HOOK_IsHooked( WH_CALLWNDPROC ))
        MSG_CallWndProcHook32( (LPMSG32)&hwnd, TRUE);

    if (!(wndPtr = WIN_FindWndPtr( hwnd )))
    {
        WARN(msg, "invalid hwnd %08x\n", hwnd );
        return 0;
    }
    if (QUEUE_IsExitingQueue(wndPtr->hmemTaskQ))
        return 0;  /* Don't send anything if the task is dying */

    SPY_EnterMessage( SPY_SENDMESSAGE32, hwnd, msg, wParam, lParam );

    if (wndPtr->hmemTaskQ != GetTaskQueue(0))
        ret = MSG_SendMessage( wndPtr->hmemTaskQ, hwnd, msg, wParam, lParam,
                                QUEUE_SM_WIN32 | QUEUE_SM_UNICODE );
    else
        ret = CallWindowProc32W( (WNDPROC32)wndPtr->winproc,
                                 hwnd, msg, wParam, lParam );

    SPY_ExitMessage( SPY_RESULT_OK32, hwnd, msg, ret );
    return ret;
}


/***********************************************************************
 *           SendMessageTimeout16    (not a WINAPI)
 */
LRESULT WINAPI SendMessageTimeout16( HWND16 hwnd, UINT16 msg, WPARAM16 wParam,
                                     LPARAM lParam, UINT16 flags,
                                     UINT16 timeout, LPWORD resultp)
{
  FIXME(sendmsg, "(...): semistub\n");
  return SendMessage16 (hwnd, msg, wParam, lParam);
}


/***********************************************************************
 *           SendMessageTimeout32A   (USER32.457)
 */
LRESULT WINAPI SendMessageTimeout32A( HWND32 hwnd, UINT32 msg, WPARAM32 wParam,
                                      LPARAM lParam, UINT32 flags,
                                      UINT32 timeout, LPDWORD resultp)
{
  FIXME(sendmsg, "(...): semistub\n");
  return SendMessage32A (hwnd, msg, wParam, lParam);
}


/***********************************************************************
 *           SendMessageTimeout32W   (USER32.458)
 */
LRESULT WINAPI SendMessageTimeout32W( HWND32 hwnd, UINT32 msg, WPARAM32 wParam,
                                      LPARAM lParam, UINT32 flags,
                                      UINT32 timeout, LPDWORD resultp)
{
  FIXME(sendmsg, "(...): semistub\n");
  return SendMessage32W (hwnd, msg, wParam, lParam);
}


/***********************************************************************
 *  WaitMessage    (USER.112) (USER32.578)  Suspend thread pending messages
 *
 * WaitMessage() suspends a thread until events appear in the thread's
 * queue.
 *
 * BUGS
 *
 * Is supposed to return BOOL under Win32.
 *
 * Thread-local message queues are not supported.
 *
 * CONFORMANCE
 *
 * ECMA-234, Win32
 * 
 */
void WINAPI WaitMessage( void )
{
    QUEUE_WaitBits( QS_ALLINPUT );
}

/***********************************************************************
 *           MsgWaitForMultipleObjects    (USER32.400)
 */
DWORD WINAPI MsgWaitForMultipleObjects( DWORD nCount, HANDLE32 *pHandles,
                                        BOOL32 fWaitAll, DWORD dwMilliseconds,
                                        DWORD dwWakeMask )
{
    DWORD retv;

    TDB *currTask = (TDB *)GlobalLock16( GetCurrentTask() );
    HQUEUE16 hQueue = currTask? currTask->hQueue : 0;
    MESSAGEQUEUE *msgQueue = (MESSAGEQUEUE *)GlobalLock16( hQueue );
    if (!msgQueue) return 0xFFFFFFFF;

    msgQueue->changeBits = 0;
    msgQueue->wakeMask = dwWakeMask;

    retv = SYNC_DoWait( nCount, pHandles, fWaitAll, dwMilliseconds, FALSE, TRUE );

    return retv;
}



struct accent_char
{
    BYTE ac_accent;
    BYTE ac_char;
    BYTE ac_result;
};

static const struct accent_char accent_chars[] =
{
/* A good idea should be to read /usr/X11/lib/X11/locale/iso8859-x/Compose */
    {'`', 'A', '\300'},  {'`', 'a', '\340'},
    {'\'', 'A', '\301'}, {'\'', 'a', '\341'},
    {'^', 'A', '\302'},  {'^', 'a', '\342'},
    {'~', 'A', '\303'},  {'~', 'a', '\343'},
    {'"', 'A', '\304'},  {'"', 'a', '\344'},
    {'O', 'A', '\305'},  {'o', 'a', '\345'},
    {'0', 'A', '\305'},  {'0', 'a', '\345'},
    {'A', 'A', '\305'},  {'a', 'a', '\345'},
    {'A', 'E', '\306'},  {'a', 'e', '\346'},
    {',', 'C', '\307'},  {',', 'c', '\347'},
    {'`', 'E', '\310'},  {'`', 'e', '\350'},
    {'\'', 'E', '\311'}, {'\'', 'e', '\351'},
    {'^', 'E', '\312'},  {'^', 'e', '\352'},
    {'"', 'E', '\313'},  {'"', 'e', '\353'},
    {'`', 'I', '\314'},  {'`', 'i', '\354'},
    {'\'', 'I', '\315'}, {'\'', 'i', '\355'},
    {'^', 'I', '\316'},  {'^', 'i', '\356'},
    {'"', 'I', '\317'},  {'"', 'i', '\357'},
    {'-', 'D', '\320'},  {'-', 'd', '\360'},
    {'~', 'N', '\321'},  {'~', 'n', '\361'},
    {'`', 'O', '\322'},  {'`', 'o', '\362'},
    {'\'', 'O', '\323'}, {'\'', 'o', '\363'},
    {'^', 'O', '\324'},  {'^', 'o', '\364'},
    {'~', 'O', '\325'},  {'~', 'o', '\365'},
    {'"', 'O', '\326'},  {'"', 'o', '\366'},
    {'/', 'O', '\330'},  {'/', 'o', '\370'},
    {'`', 'U', '\331'},  {'`', 'u', '\371'},
    {'\'', 'U', '\332'}, {'\'', 'u', '\372'},
    {'^', 'U', '\333'},  {'^', 'u', '\373'},
    {'"', 'U', '\334'},  {'"', 'u', '\374'},
    {'\'', 'Y', '\335'}, {'\'', 'y', '\375'},
    {'T', 'H', '\336'},  {'t', 'h', '\376'},
    {'s', 's', '\337'},  {'"', 'y', '\377'},
    {'s', 'z', '\337'},  {'i', 'j', '\377'},
        /* iso-8859-2 uses this */
    {'<', 'L', '\245'},  {'<', 'l', '\265'},    /* caron */
    {'<', 'S', '\251'},  {'<', 's', '\271'},
    {'<', 'T', '\253'},  {'<', 't', '\273'},
    {'<', 'Z', '\256'},  {'<', 'z', '\276'},
    {'<', 'C', '\310'},  {'<', 'c', '\350'},
    {'<', 'E', '\314'},  {'<', 'e', '\354'},
    {'<', 'D', '\317'},  {'<', 'd', '\357'},
    {'<', 'N', '\322'},  {'<', 'n', '\362'},
    {'<', 'R', '\330'},  {'<', 'r', '\370'},
    {';', 'A', '\241'},  {';', 'a', '\261'},    /* ogonek */
    {';', 'E', '\312'},  {';', 'e', '\332'},
    {'\'', 'Z', '\254'}, {'\'', 'z', '\274'},   /* acute */
    {'\'', 'R', '\300'}, {'\'', 'r', '\340'},
    {'\'', 'L', '\305'}, {'\'', 'l', '\345'},
    {'\'', 'C', '\306'}, {'\'', 'c', '\346'},
    {'\'', 'N', '\321'}, {'\'', 'n', '\361'},
/*  collision whith S, from iso-8859-9 !!! */
    {',', 'S', '\252'},  {',', 's', '\272'},    /* cedilla */
    {',', 'T', '\336'},  {',', 't', '\376'},
    {'.', 'Z', '\257'},  {'.', 'z', '\277'},    /* dot above */
    {'/', 'L', '\243'},  {'/', 'l', '\263'},    /* slash */
    {'/', 'D', '\320'},  {'/', 'd', '\360'},
    {'(', 'A', '\303'},  {'(', 'a', '\343'},    /* breve */
    {'\275', 'O', '\325'}, {'\275', 'o', '\365'},       /* double acute */
    {'\275', 'U', '\334'}, {'\275', 'u', '\374'},
    {'0', 'U', '\332'},  {'0', 'u', '\372'},    /* ring above */
        /* iso-8859-3 uses this */
    {'/', 'H', '\241'},  {'/', 'h', '\261'},    /* slash */
    {'>', 'H', '\246'},  {'>', 'h', '\266'},    /* circumflex */
    {'>', 'J', '\254'},  {'>', 'j', '\274'},
    {'>', 'C', '\306'},  {'>', 'c', '\346'},
    {'>', 'G', '\330'},  {'>', 'g', '\370'},
    {'>', 'S', '\336'},  {'>', 's', '\376'},
/*  collision whith G( from iso-8859-9 !!!   */
    {'(', 'G', '\253'},  {'(', 'g', '\273'},    /* breve */
    {'(', 'U', '\335'},  {'(', 'u', '\375'},
/*  collision whith I. from iso-8859-3 !!!   */
    {'.', 'I', '\251'},  {'.', 'i', '\271'},    /* dot above */
    {'.', 'C', '\305'},  {'.', 'c', '\345'},
    {'.', 'G', '\325'},  {'.', 'g', '\365'},
        /* iso-8859-4 uses this */
    {',', 'R', '\243'},  {',', 'r', '\263'},    /* cedilla */
    {',', 'L', '\246'},  {',', 'l', '\266'},
    {',', 'G', '\253'},  {',', 'g', '\273'},
    {',', 'N', '\321'},  {',', 'n', '\361'},
    {',', 'K', '\323'},  {',', 'k', '\363'},
    {'~', 'I', '\245'},  {'~', 'i', '\265'},    /* tilde */
    {'-', 'E', '\252'},  {'-', 'e', '\272'},    /* macron */
    {'-', 'A', '\300'},  {'-', 'a', '\340'},
    {'-', 'I', '\317'},  {'-', 'i', '\357'},
    {'-', 'O', '\322'},  {'-', 'o', '\362'},
    {'-', 'U', '\336'},  {'-', 'u', '\376'},
    {'/', 'T', '\254'},  {'/', 't', '\274'},    /* slash */
    {'.', 'E', '\314'},  {'.', 'e', '\344'},    /* dot above */
    {';', 'I', '\307'},  {';', 'i', '\347'},    /* ogonek */
    {';', 'U', '\331'},  {';', 'u', '\371'},
        /* iso-8859-9 uses this */
        /* iso-8859-9 has really bad choosen G( S, and I. as they collide
         * whith the same letters on other iso-8859-x (that is they are on
         * different places :-( ), if you use turkish uncomment these and
         * comment out the lines in iso-8859-2 and iso-8859-3 sections
         * FIXME: should be dynamic according to chosen language
         *        if/when Wine has turkish support.  
         */ 
/*  collision whith G( from iso-8859-3 !!!   */
/*  {'(', 'G', '\320'},  {'(', 'g', '\360'}, */ /* breve */
/*  collision whith S, from iso-8859-2 !!! */
/*  {',', 'S', '\336'},  {',', 's', '\376'}, */ /* cedilla */
/*  collision whith I. from iso-8859-3 !!!   */
/*  {'.', 'I', '\335'},  {'.', 'i', '\375'}, */ /* dot above */
};


/***********************************************************************
 *           MSG_DoTranslateMessage
 *
 * Implementation of TranslateMessage.
 *
 * TranslateMessage translates virtual-key messages into character-messages,
 * as follows :
 * WM_KEYDOWN/WM_KEYUP combinations produce a WM_CHAR or WM_DEADCHAR message.
 * ditto replacing WM_* with WM_SYS*
 * This produces WM_CHAR messages only for keys mapped to ASCII characters
 * by the keyboard driver.
 */
static BOOL32 MSG_DoTranslateMessage( UINT32 message, HWND32 hwnd,
                                      WPARAM32 wParam, LPARAM lParam )
{
    static int dead_char;
    BYTE wp[2];
    
    if (message != WM_MOUSEMOVE && message != WM_TIMER)
        TRACE(msg, "(%s, %04X, %08lX)\n",
                     SPY_GetMsgName(message), wParam, lParam );
    if(message >= WM_KEYFIRST && message <= WM_KEYLAST)
        TRACE(key, "(%s, %04X, %08lX)\n",
                     SPY_GetMsgName(message), wParam, lParam );

    if ((message != WM_KEYDOWN) && (message != WM_SYSKEYDOWN))  return FALSE;

    TRACE(key, "Translating key %04X, scancode %04X\n",
                 wParam, HIWORD(lParam) );

    /* FIXME : should handle ToAscii yielding 2 */
    switch (ToAscii32(wParam, HIWORD(lParam),
                      QueueKeyStateTable,(LPWORD)wp, 0)) 
    {
    case 1 :
        message = (message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
        /* Should dead chars handling go in ToAscii ? */
        if (dead_char)
        {
            int i;

            if (wp[0] == ' ') wp[0] =  dead_char;
            if (dead_char == 0xa2) dead_char = '(';
            else if (dead_char == 0xa8) dead_char = '"';
            else if (dead_char == 0xb2) dead_char = ';';
            else if (dead_char == 0xb4) dead_char = '\'';
            else if (dead_char == 0xb7) dead_char = '<';
            else if (dead_char == 0xb8) dead_char = ',';
            else if (dead_char == 0xff) dead_char = '.';
            for (i = 0; i < sizeof(accent_chars)/sizeof(accent_chars[0]); i++)
                if ((accent_chars[i].ac_accent == dead_char) &&
                    (accent_chars[i].ac_char == wp[0]))
                {
                    wp[0] = accent_chars[i].ac_result;
                    break;
                }
            dead_char = 0;
        }
        TRACE(key, "1 -> PostMessage(%s)\n", SPY_GetMsgName(message));
        PostMessage16( hwnd, message, wp[0], lParam );
        return TRUE;

    case -1 :
        message = (message == WM_KEYDOWN) ? WM_DEADCHAR : WM_SYSDEADCHAR;
        dead_char = wp[0];
        TRACE(key, "-1 -> PostMessage(%s)\n",
                     SPY_GetMsgName(message));
        PostMessage16( hwnd, message, wp[0], lParam );
        return TRUE;
    }
    return FALSE;
}


/***********************************************************************
 *           TranslateMessage16   (USER.113)
 */
BOOL16 WINAPI TranslateMessage16( const MSG16 *msg )
{
    return MSG_DoTranslateMessage( msg->message, msg->hwnd,
                                   msg->wParam, msg->lParam );
}


/***********************************************************************
 *           TranslateMessage32   (USER32.556)
 */
BOOL32 WINAPI TranslateMessage32( const MSG32 *msg )
{
    return MSG_DoTranslateMessage( msg->message, msg->hwnd,
                                   msg->wParam, msg->lParam );
}


/***********************************************************************
 *           DispatchMessage16   (USER.114)
 */
LONG WINAPI DispatchMessage16( const MSG16* msg )
{
    WND * wndPtr;
    LONG retval;
    int painting;
    
      /* Process timer messages */
    if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
    {
        if (msg->lParam)
        {
            return CallWindowProc16( (WNDPROC16)msg->lParam, msg->hwnd,
                                   msg->message, msg->wParam, GetTickCount() );
        }
    }

    if (!msg->hwnd) return 0;
    if (!(wndPtr = WIN_FindWndPtr( msg->hwnd ))) return 0;
    if (!wndPtr->winproc) return 0;
    painting = (msg->message == WM_PAINT);
    if (painting) wndPtr->flags |= WIN_NEEDS_BEGINPAINT;

    SPY_EnterMessage( SPY_DISPATCHMESSAGE16, msg->hwnd, msg->message,
                      msg->wParam, msg->lParam );
    retval = CallWindowProc16( (WNDPROC16)wndPtr->winproc,
                               msg->hwnd, msg->message,
                               msg->wParam, msg->lParam );
    SPY_ExitMessage( SPY_RESULT_OK16, msg->hwnd, msg->message, retval );

    if (painting && (wndPtr = WIN_FindWndPtr( msg->hwnd )) &&
        (wndPtr->flags & WIN_NEEDS_BEGINPAINT) && wndPtr->hrgnUpdate)
    {
        ERR(msg, "BeginPaint not called on WM_PAINT for hwnd %04x!\n", 
            msg->hwnd);
        wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT;
        /* Validate the update region to avoid infinite WM_PAINT loop */
        ValidateRect32( msg->hwnd, NULL );
    }
    return retval;
}


/***********************************************************************
 *           DispatchMessage32A   (USER32.141)
 */
LONG WINAPI DispatchMessage32A( const MSG32* msg )
{
    WND * wndPtr;
    LONG retval;
    int painting;
    
      /* Process timer messages */
    if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
    {
        if (msg->lParam)
        {
/*            HOOK_CallHooks32A( WH_CALLWNDPROC, HC_ACTION, 0, FIXME ); */
            return CallWindowProc32A( (WNDPROC32)msg->lParam, msg->hwnd,
                                   msg->message, msg->wParam, GetTickCount() );
        }
    }

    if (!msg->hwnd) return 0;
    if (!(wndPtr = WIN_FindWndPtr( msg->hwnd ))) return 0;
    if (!wndPtr->winproc) return 0;
    painting = (msg->message == WM_PAINT);
    if (painting) wndPtr->flags |= WIN_NEEDS_BEGINPAINT;
/*    HOOK_CallHooks32A( WH_CALLWNDPROC, HC_ACTION, 0, FIXME ); */

    SPY_EnterMessage( SPY_DISPATCHMESSAGE32, msg->hwnd, msg->message,
                      msg->wParam, msg->lParam );
    retval = CallWindowProc32A( (WNDPROC32)wndPtr->winproc,
                                msg->hwnd, msg->message,
                                msg->wParam, msg->lParam );
    SPY_ExitMessage( SPY_RESULT_OK32, msg->hwnd, msg->message, retval );

    if (painting && (wndPtr = WIN_FindWndPtr( msg->hwnd )) &&
        (wndPtr->flags & WIN_NEEDS_BEGINPAINT) && wndPtr->hrgnUpdate)
    {
        ERR(msg, "BeginPaint not called on WM_PAINT for hwnd %04x!\n", 
            msg->hwnd);
        wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT;
        /* Validate the update region to avoid infinite WM_PAINT loop */
        ValidateRect32( msg->hwnd, NULL );
    }
    return retval;
}


/***********************************************************************
 *           DispatchMessage32W   (USER32.142)     Process Message
 *
 * Process the message specified in the structure *_msg_.
 *
 * If the lpMsg parameter points to a WM_TIMER message and the
 * parameter of the WM_TIMER message is not NULL, the lParam parameter
 * points to the function that is called instead of the window
 * procedure.
 *  
 * The message must be valid.
 *
 * RETURNS
 *
 *   DispatchMessage() returns the result of the window procedure invoked.
 *
 * CONFORMANCE
 *
 *   ECMA-234, Win32 
 *
 */
LONG WINAPI DispatchMessage32W( const MSG32* msg )
{
    WND * wndPtr;
    LONG retval;
    int painting;
    
      /* Process timer messages */
    if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
    {
        if (msg->lParam)
        {
/*            HOOK_CallHooks32W( WH_CALLWNDPROC, HC_ACTION, 0, FIXME ); */
            return CallWindowProc32W( (WNDPROC32)msg->lParam, msg->hwnd,
                                   msg->message, msg->wParam, GetTickCount() );
        }
    }

    if (!msg->hwnd) return 0;
    if (!(wndPtr = WIN_FindWndPtr( msg->hwnd ))) return 0;
    if (!wndPtr->winproc) return 0;
    painting = (msg->message == WM_PAINT);
    if (painting) wndPtr->flags |= WIN_NEEDS_BEGINPAINT;
/*    HOOK_CallHooks32W( WH_CALLWNDPROC, HC_ACTION, 0, FIXME ); */

    SPY_EnterMessage( SPY_DISPATCHMESSAGE32, msg->hwnd, msg->message,
                      msg->wParam, msg->lParam );
    retval = CallWindowProc32W( (WNDPROC32)wndPtr->winproc,
                                msg->hwnd, msg->message,
                                msg->wParam, msg->lParam );
    SPY_ExitMessage( SPY_RESULT_OK32, msg->hwnd, msg->message, retval );

    if (painting && (wndPtr = WIN_FindWndPtr( msg->hwnd )) &&
        (wndPtr->flags & WIN_NEEDS_BEGINPAINT) && wndPtr->hrgnUpdate)
    {
        ERR(msg, "BeginPaint not called on WM_PAINT for hwnd %04x!\n", 
            msg->hwnd);
        wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT;
        /* Validate the update region to avoid infinite WM_PAINT loop */
        ValidateRect32( msg->hwnd, NULL );
    }
    return retval;
}


/***********************************************************************
 *           RegisterWindowMessage16   (USER.118)
 */
WORD WINAPI RegisterWindowMessage16( SEGPTR str )
{
    TRACE(msg, "%08lx\n", (DWORD)str );
    return GlobalAddAtom16( str );
}


/***********************************************************************
 *           RegisterWindowMessage32A   (USER32.437)
 */
WORD WINAPI RegisterWindowMessage32A( LPCSTR str )
{
    TRACE(msg, "%s\n", str );
    return GlobalAddAtom32A( str );
}


/***********************************************************************
 *           RegisterWindowMessage32W   (USER32.438)
 */
WORD WINAPI RegisterWindowMessage32W( LPCWSTR str )
{
    TRACE(msg, "%p\n", str );
    return GlobalAddAtom32W( str );
}


/***********************************************************************
 *           GetTickCount   (USER.13) (KERNEL32.299)  System Time
 * Returns the number of milliseconds, modulo 2^32, since the start
 * of the current session.
 *
 * CONFORMANCE
 *
 * ECMA-234, Win32
 */
DWORD WINAPI GetTickCount(void)
{
    struct timeval t;
    gettimeofday( &t, NULL );
    /* make extremely compatible: granularity is 25 msec */
    return ((t.tv_sec * 1000) + (t.tv_usec / 25000) * 25) - MSG_WineStartTicks;
}


/***********************************************************************
 *           GetCurrentTime16    (USER.15)
 *
 * (effectively identical to GetTickCount)
 */
DWORD WINAPI GetCurrentTime16(void)
{
    return GetTickCount();
}


/***********************************************************************
 *           InSendMessage16    (USER.192)
 */
BOOL16 WINAPI InSendMessage16(void)
{
    return InSendMessage32();
}


/***********************************************************************
 *           InSendMessage32    (USER32.320)
 */
BOOL32 WINAPI InSendMessage32(void)
{
    MESSAGEQUEUE *queue;

    if (!(queue = (MESSAGEQUEUE *)GlobalLock16( GetTaskQueue(0) )))
        return 0;
    return (BOOL32)queue->InSendMessageHandle;
}

/***********************************************************************
 *           BroadcastSystemMessage    (USER32.12)
 */
LONG WINAPI BroadcastSystemMessage(
        DWORD dwFlags,LPDWORD recipients,UINT32 uMessage,WPARAM32 wParam,
        LPARAM lParam
) {
        FIXME(sendmsg,"(%08lx,%08lx,%08x,%08x,%08lx): stub!\n",
              dwFlags,*recipients,uMessage,wParam,lParam
        );
        return 0;
}

/***********************************************************************
 *           SendNotifyMessageA    (USER32.460)
 * FIXME
 *  The message sended with PostMessage has to be put in the queue
 *  with a higher priority as the other "Posted" messages.
 *  QUEUE_AddMsg has to be modifyed.
 */
LONG WINAPI SendNotifyMessage32A(HWND32 hwnd,UINT32 msg,WPARAM32 wParam,LPARAM lParam)
{       BOOL32 ret = TRUE;
        FIXME(msg,"(%04x,%08x,%08x,%08lx) not complete\n",
              hwnd, msg, wParam, lParam);
              
        if ( GetCurrentThreadId() == GetWindowThreadProcessId ( hwnd, NULL))
        {       ret=SendMessage32A ( hwnd, msg, wParam, lParam );
        }
        else
        {       PostMessage32A ( hwnd, msg, wParam, lParam );
        }
        return ret;
}
/***********************************************************************
 *           SendMessageCallBack32A
 * FIXME: It's like PostMessage. The callback gets called when the message
 * is processed. We have to modify the message processing for a exact
 * implementation...
 */
BOOL32 WINAPI SendMessageCallBack32A(
        HWND32 hWnd,UINT32 Msg,WPARAM32 wParam,LPARAM lParam,
        FARPROC32 lpResultCallBack,DWORD dwData)
{       
        FIXME(msg,"(0x%04x,0x%04x,0x%08x,0x%08lx,%p,0x%08lx),stub!\n",
                hWnd,Msg,wParam,lParam,lpResultCallBack,dwData);
        if ( hWnd == HWND_BROADCAST)
        {       PostMessage32A( hWnd, Msg, wParam, lParam);
                FIXME(msg,"Broadcast: Callback will not be called!\n");
                return TRUE;
        }
        (lpResultCallBack)( hWnd, Msg, dwData, SendMessage32A ( hWnd, Msg, wParam, lParam ));
                return TRUE;
}