windows/defwnd.c - wine - Git at Google

 /*
  * Default window procedure
  *
  * Copyright 1993 Alexandre Julliard
  *	     1995 Alex Korobka
  */

 #include <stdlib.h>
 #include <stdio.h>
 #include "win.h"
 #include "class.h"
 #include "user.h"
 #include "nonclient.h"
 #include "winpos.h"
 #include "syscolor.h"
 #include "stddebug.h"
 /* #define DEBUG_MESSAGE */
 #include "debug.h"
 #include "spy.h"

   /* Last COLOR id */
 #define COLOR_MAX   COLOR_BTNHIGHLIGHT

   /* bits in the dwKeyData */
 #define KEYDATA_ALT 		0x2000
 #define KEYDATA_PREVSTATE	0x4000

 static short iF10Key = 0;
 static short iMenuSysKey = 0;

 /***********************************************************************
  *           DEFWND_SetText
  *
  * Set the window text.
  */
 void DEFWND_SetText( WND *wndPtr, LPSTR text )
 {
     LPSTR textPtr;

     if (!text) text = "";
     if (wndPtr->hText) USER_HEAP_FREE( wndPtr->hText );
     wndPtr->hText = USER_HEAP_ALLOC( strlen(text) + 1 );
     textPtr = (LPSTR) USER_HEAP_LIN_ADDR( wndPtr->hText );
     strcpy( textPtr, text );
     if (wndPtr->window)
         XStoreName( display, wndPtr->window, text );
 }


 /***********************************************************************
  *           DefWindowProc   (USER.107)
  */
 LRESULT DefWindowProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
 {
     CLASS * classPtr;
     LPSTR textPtr;
     int len;
     WND * wndPtr = WIN_FindWndPtr( hwnd );

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

     switch(msg)
     {
     case WM_NCCREATE:
 	{
 	    CREATESTRUCT *createStruct = (CREATESTRUCT*)PTR_SEG_TO_LIN(lParam);
 	    if (createStruct->lpszName)
 		DEFWND_SetText( wndPtr,
                                (LPSTR)PTR_SEG_TO_LIN(createStruct->lpszName) );
 	    return 1;
 	}

     case WM_NCCALCSIZE:
 	return NC_HandleNCCalcSize( hwnd,
                                  (NCCALCSIZE_PARAMS *)PTR_SEG_TO_LIN(lParam) );

     case WM_PAINTICON:
     case WM_NCPAINT:
 	return NC_HandleNCPaint( hwnd, (HRGN)wParam );

     case WM_NCHITTEST:
         {
             POINT pt = { LOWORD(lParam), HIWORD(lParam) };
             return NC_HandleNCHitTest( hwnd, pt );
         }

     case WM_NCLBUTTONDOWN:
 	return NC_HandleNCLButtonDown( hwnd, wParam, lParam );

     case WM_LBUTTONDBLCLK:
     case WM_NCLBUTTONDBLCLK:
 	return NC_HandleNCLButtonDblClk( hwnd, wParam, lParam );

     case WM_NCACTIVATE:
 	return NC_HandleNCActivate( hwnd, wParam );

     case WM_NCDESTROY:
 	if (wndPtr->hText) USER_HEAP_FREE(wndPtr->hText);
 	if (wndPtr->hVScroll) USER_HEAP_FREE(wndPtr->hVScroll);
 	if (wndPtr->hHScroll) USER_HEAP_FREE(wndPtr->hHScroll);
 	wndPtr->hText = wndPtr->hVScroll = wndPtr->hHScroll = 0;
 	return 0;

     case WM_PAINT:
 	{
 	    PAINTSTRUCT paintstruct;
 	    BeginPaint( hwnd, &paintstruct );
 	    EndPaint( hwnd, &paintstruct );
 	    return 0;
 	}

     case WM_SETREDRAW:
         if (!wParam)
         {
             ValidateRect( hwnd, NULL );
             wndPtr->flags |= WIN_NO_REDRAW;
         }
         else wndPtr->flags &= ~WIN_NO_REDRAW;
         return 0;

     case WM_CLOSE:
 	DestroyWindow( hwnd );
 	return 0;

     case WM_MOUSEACTIVATE:
 	if (wndPtr->dwStyle & WS_CHILD)
 	{
 	    LONG ret = SendMessage( wndPtr->parent->hwndSelf, WM_MOUSEACTIVATE,
 				    wParam, lParam );
 	    if (ret) return ret;
 	}
 	return MA_ACTIVATE;

     case WM_ACTIVATE:
       /* LOWORD() needed for WINELIB32 implementation.  Should be fine. */
 	if (LOWORD(wParam)!=WA_INACTIVE) SetFocus( hwnd );
 	break;

     case WM_WINDOWPOSCHANGING:
 	return WINPOS_HandleWindowPosChanging( (WINDOWPOS *)PTR_SEG_TO_LIN(lParam) );

     case WM_WINDOWPOSCHANGED:
 	{
 	    WINDOWPOS * winPos = (WINDOWPOS *)PTR_SEG_TO_LIN(lParam);
 	    WPARAM	wp     = SIZE_RESTORED;

 	    if (!(winPos->flags & SWP_NOCLIENTMOVE))
 		SendMessage( hwnd, WM_MOVE, 0,
 		             MAKELONG( wndPtr->rectClient.left,
 				       wndPtr->rectClient.top ));
 	    if (!(winPos->flags & SWP_NOCLIENTSIZE))
 		 {
 	       	   if( wndPtr->dwStyle & WS_MAXIMIZE ) wp = SIZE_MAXIMIZED;
 		   else if(wndPtr->dwStyle & WS_MINIMIZE ) wp = SIZE_MINIMIZED;

 		   SendMessage( hwnd, WM_SIZE, wp,
 			        MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left,
 			                 wndPtr->rectClient.bottom-wndPtr->rectClient.top));

                  }
 	    return 0;
 	}

     case WM_ERASEBKGND:
     case WM_ICONERASEBKGND:
 	{
 	    if (!(classPtr = CLASS_FindClassPtr( wndPtr->hClass ))) return 0;
 	    if (!classPtr->wc.hbrBackground) return 0;
             if (classPtr->wc.hbrBackground <= (HBRUSH)(COLOR_MAX+1))
             {
                  HBRUSH hbrush;
                  hbrush = CreateSolidBrush(
                      GetSysColor(((DWORD)classPtr->wc.hbrBackground)-1));
                  FillWindow( GetParent(hwnd), hwnd, (HDC)wParam, hbrush);
                  DeleteObject (hbrush);
             }
             else
 	         FillWindow( GetParent(hwnd), hwnd, (HDC)wParam,
 		        classPtr->wc.hbrBackground );
 	    return 1;
 	}

     case WM_GETDLGCODE:
 	return 0;

     case WM_CTLCOLORMSGBOX:
     case WM_CTLCOLOREDIT:
     case WM_CTLCOLORLISTBOX:
     case WM_CTLCOLORBTN:
     case WM_CTLCOLORDLG:
     case WM_CTLCOLORSTATIC:
         SetBkColor( (HDC)wParam, GetSysColor(COLOR_WINDOW) );
         SetTextColor( (HDC)wParam, GetSysColor(COLOR_WINDOWTEXT) );
         return (LONG)sysColorObjects.hbrushWindow;

     case WM_CTLCOLORSCROLLBAR:
         SetBkColor( (HDC)wParam, RGB(255, 255, 255) );
         SetTextColor( (HDC)wParam, RGB(0, 0, 0) );
         UnrealizeObject( sysColorObjects.hbrushScrollbar );
         return (LONG)sysColorObjects.hbrushScrollbar;

     case WM_CTLCOLOR:
 	{
 	    if (HIWORD(lParam) == CTLCOLOR_SCROLLBAR)
 	    {
 		SetBkColor( (HDC)wParam, RGB(255, 255, 255) );
 		SetTextColor( (HDC)wParam, RGB(0, 0, 0) );
 		UnrealizeObject( sysColorObjects.hbrushScrollbar );
 		return (LONG)sysColorObjects.hbrushScrollbar;
 	    }
 	    else
 	    {
 		SetBkColor( (HDC)wParam, GetSysColor(COLOR_WINDOW) );
 		SetTextColor( (HDC)wParam, GetSysColor(COLOR_WINDOWTEXT) );
 		return (LONG)sysColorObjects.hbrushWindow;
 	    }
 	}

     case WM_GETTEXT:
 	{
 	    if (wParam)
 	    {
 		if (wndPtr->hText)
 		{
 		    textPtr = (LPSTR)USER_HEAP_LIN_ADDR(wndPtr->hText);
 		    if ((int)wParam > (len = strlen(textPtr)))
 		    {
 			strcpy((char *)PTR_SEG_TO_LIN(lParam), textPtr);
 			return (DWORD)len;
 		    }
 		}
 	    }
 	    return 0;
 	}

     case WM_GETTEXTLENGTH:
 	{
 	    if (wndPtr->hText)
 	    {
 		textPtr = (LPSTR)USER_HEAP_LIN_ADDR(wndPtr->hText);
 		return (DWORD)strlen(textPtr);
 	    }
 	    return 0;
 	}

     case WM_SETTEXT:
 	DEFWND_SetText( wndPtr, (LPSTR)PTR_SEG_TO_LIN(lParam) );
 	NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 	return 0;

     case WM_SETCURSOR:
 	if (wndPtr->dwStyle & WS_CHILD)
 	    if (SendMessage(wndPtr->parent->hwndSelf, WM_SETCURSOR,
                             wParam, lParam))
 		return TRUE;
 	return NC_HandleSetCursor( hwnd, wParam, lParam );

     case WM_SYSCOMMAND:
 	{
           POINT pt = { LOWORD(lParam), HIWORD(lParam) };
           return NC_HandleSysCommand( hwnd, wParam, pt );
 	}
     case WM_KEYDOWN:

 	if(wParam == VK_F10) iF10Key = VK_F10;
 	break;

     case WM_SYSKEYDOWN:

 	if( HIWORD(lParam) & KEYDATA_ALT )
 	  {
 	    /* if( HIWORD(lParam) & ~KEYDATA_PREVSTATE ) */
 	      if( wParam == VK_MENU && !iMenuSysKey )
 		iMenuSysKey = 1;
 	      else
 		iMenuSysKey = 0;

 	    iF10Key = 0;

 	  }
 	else if( wParam == VK_F10 )
 	         iF10Key = 1;
 	     else
 	         if( wParam == VK_ESCAPE && GetKeyState(VK_SHIFT) < 0 )
 		     SendMessage( hwnd, WM_SYSCOMMAND, (WPARAM)SC_KEYMENU,
  						       (LPARAM)VK_SPACE);
 	break;

     case WM_KEYUP:
     case WM_SYSKEYUP:

 	/* Press and release F10 or ALT */

 	if( ( wParam == VK_MENU && iMenuSysKey )
 	      || ( wParam == VK_F10 && iF10Key ) )

 	      SendMessage( WIN_GetTopParent(hwnd), WM_SYSCOMMAND,
 			   SC_KEYMENU, 0L );

 	iMenuSysKey = iF10Key = 0;
         break;

     case WM_SYSCHAR:

 	iMenuSysKey = 0;

 	if( wParam == VK_RETURN && (wndPtr->dwStyle & WS_MINIMIZE) )
 	  {
 	    PostMessage(hwnd, WM_SYSCOMMAND, (WPARAM)SC_RESTORE, 0L );
 	    break;
 	  }

 	if( (HIWORD(lParam) & KEYDATA_ALT) && wParam )
 	  {
 	    if( wParam == VK_TAB || wParam == VK_ESCAPE )
 	      break;

 	    if( wParam == VK_SPACE && (wndPtr->dwStyle & WS_CHILD) )
 	      SendMessage( wndPtr->parent->hwndSelf, msg, wParam, lParam );
 	    else
 	      SendMessage(hwnd, WM_SYSCOMMAND, (WPARAM)SC_KEYMENU, (LPARAM)(DWORD)wParam );
 	  }
 	else
 	  /* check for Ctrl-Esc */
 	  if( wParam != VK_ESCAPE )
 	      MessageBeep(0);

 	break;

     case WM_SHOWWINDOW:
 	if( !lParam ) return 0; /* sent from ShowWindow */

 	if( !(wndPtr->dwStyle & WS_POPUP) || !wndPtr->owner )
 	      return 0;

 	if( wndPtr->dwStyle & WS_VISIBLE )
 	    { if( wParam ) return 0; }
 	else
 	      if(!wParam ) return 0;

 	ShowWindow(hwnd,(wParam)? SW_SHOWNOACTIVATE: SW_HIDE);
 	break;

     case WM_CANCELMODE:

 	/* EndMenu() should be called if in menu state but currently it's
 	   impossible to detect - menu code should be updated*/

 	if( GetCapture() == hwnd )
 	    ReleaseCapture();

 	break;

     case WM_VKEYTOITEM:
     case WM_CHARTOITEM:
 	return -1;

     case WM_DROPOBJECT:
 	return DRAG_FILE;

     case WM_QUERYDROPOBJECT:
 	if(wndPtr->dwExStyle & WS_EX_ACCEPTFILES)
 	   return 1;
 	break;

     case WM_QUERYDRAGICON:
 	{
 	 HICON hI = 0;

 	 len = 1;
 	 while(len < 64)
 		if( (hI = LoadIcon(wndPtr->hInstance,MAKEINTRESOURCE(len))) )
 		     return (LRESULT)hI;
 	}
         break;

     case WM_QUERYOPEN:
     case WM_QUERYENDSESSION:
 	return 1;

     }
     return 0;
 }
	/*
	* Default window procedure
	*
	* Copyright 1993 Alexandre Julliard
	* 1995 Alex Korobka
	*/

	#include <stdlib.h>
	#include <stdio.h>
	#include "win.h"
	#include "class.h"
	#include "user.h"
	#include "nonclient.h"
	#include "winpos.h"
	#include "syscolor.h"
	#include "stddebug.h"
	/* #define DEBUG_MESSAGE */
	#include "debug.h"
	#include "spy.h"

	/* Last COLOR id */
	#define COLOR_MAX COLOR_BTNHIGHLIGHT

	/* bits in the dwKeyData */
	#define KEYDATA_ALT 0x2000
	#define KEYDATA_PREVSTATE 0x4000

	static short iF10Key = 0;
	static short iMenuSysKey = 0;

	/***********************************************************************
	* DEFWND_SetText
	*
	* Set the window text.
	*/
	void DEFWND_SetText( WND *wndPtr, LPSTR text )
	{
	LPSTR textPtr;

	if (!text) text = "";
	if (wndPtr->hText) USER_HEAP_FREE( wndPtr->hText );
	wndPtr->hText = USER_HEAP_ALLOC( strlen(text) + 1 );
	textPtr = (LPSTR) USER_HEAP_LIN_ADDR( wndPtr->hText );
	strcpy( textPtr, text );
	if (wndPtr->window)
	XStoreName( display, wndPtr->window, text );
	}


	/***********************************************************************
	* DefWindowProc (USER.107)
	*/
	LRESULT DefWindowProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
	{
	CLASS * classPtr;
	LPSTR textPtr;
	int len;
	WND * wndPtr = WIN_FindWndPtr( hwnd );

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

	switch(msg)
	{
	case WM_NCCREATE:
	{
	CREATESTRUCT createStruct = (CREATESTRUCT)PTR_SEG_TO_LIN(lParam);
	if (createStruct->lpszName)
	DEFWND_SetText( wndPtr,
	(LPSTR)PTR_SEG_TO_LIN(createStruct->lpszName) );
	return 1;
	}

	case WM_NCCALCSIZE:
	return NC_HandleNCCalcSize( hwnd,
	(NCCALCSIZE_PARAMS *)PTR_SEG_TO_LIN(lParam) );

	case WM_PAINTICON:
	case WM_NCPAINT:
	return NC_HandleNCPaint( hwnd, (HRGN)wParam );

	case WM_NCHITTEST:
	{
	POINT pt = { LOWORD(lParam), HIWORD(lParam) };
	return NC_HandleNCHitTest( hwnd, pt );
	}

	case WM_NCLBUTTONDOWN:
	return NC_HandleNCLButtonDown( hwnd, wParam, lParam );

	case WM_LBUTTONDBLCLK:
	case WM_NCLBUTTONDBLCLK:
	return NC_HandleNCLButtonDblClk( hwnd, wParam, lParam );

	case WM_NCACTIVATE:
	return NC_HandleNCActivate( hwnd, wParam );

	case WM_NCDESTROY:
	if (wndPtr->hText) USER_HEAP_FREE(wndPtr->hText);
	if (wndPtr->hVScroll) USER_HEAP_FREE(wndPtr->hVScroll);
	if (wndPtr->hHScroll) USER_HEAP_FREE(wndPtr->hHScroll);
	wndPtr->hText = wndPtr->hVScroll = wndPtr->hHScroll = 0;
	return 0;

	case WM_PAINT:
	{
	PAINTSTRUCT paintstruct;
	BeginPaint( hwnd, &paintstruct );
	EndPaint( hwnd, &paintstruct );
	return 0;
	}

	case WM_SETREDRAW:
	if (!wParam)
	{
	ValidateRect( hwnd, NULL );
	wndPtr->flags \|= WIN_NO_REDRAW;
	}
	else wndPtr->flags &= ~WIN_NO_REDRAW;
	return 0;

	case WM_CLOSE:
	DestroyWindow( hwnd );
	return 0;

	case WM_MOUSEACTIVATE:
	if (wndPtr->dwStyle & WS_CHILD)
	{
	LONG ret = SendMessage( wndPtr->parent->hwndSelf, WM_MOUSEACTIVATE,
	wParam, lParam );
	if (ret) return ret;
	}
	return MA_ACTIVATE;

	case WM_ACTIVATE:
	/* LOWORD() needed for WINELIB32 implementation. Should be fine. */
	if (LOWORD(wParam)!=WA_INACTIVE) SetFocus( hwnd );
	break;

	case WM_WINDOWPOSCHANGING:
	return WINPOS_HandleWindowPosChanging( (WINDOWPOS *)PTR_SEG_TO_LIN(lParam) );

	case WM_WINDOWPOSCHANGED:
	{
	WINDOWPOS * winPos = (WINDOWPOS *)PTR_SEG_TO_LIN(lParam);
	WPARAM wp = SIZE_RESTORED;

	if (!(winPos->flags & SWP_NOCLIENTMOVE))
	SendMessage( hwnd, WM_MOVE, 0,
	MAKELONG( wndPtr->rectClient.left,
	wndPtr->rectClient.top ));
	if (!(winPos->flags & SWP_NOCLIENTSIZE))
	{
	if( wndPtr->dwStyle & WS_MAXIMIZE ) wp = SIZE_MAXIMIZED;
	else if(wndPtr->dwStyle & WS_MINIMIZE ) wp = SIZE_MINIMIZED;

	SendMessage( hwnd, WM_SIZE, wp,
	MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left,
	wndPtr->rectClient.bottom-wndPtr->rectClient.top));

	}
	return 0;
	}

	case WM_ERASEBKGND:
	case WM_ICONERASEBKGND:
	{
	if (!(classPtr = CLASS_FindClassPtr( wndPtr->hClass ))) return 0;
	if (!classPtr->wc.hbrBackground) return 0;
	if (classPtr->wc.hbrBackground <= (HBRUSH)(COLOR_MAX+1))
	{
	HBRUSH hbrush;
	hbrush = CreateSolidBrush(
	GetSysColor(((DWORD)classPtr->wc.hbrBackground)-1));
	FillWindow( GetParent(hwnd), hwnd, (HDC)wParam, hbrush);
	DeleteObject (hbrush);
	}
	else
	FillWindow( GetParent(hwnd), hwnd, (HDC)wParam,
	classPtr->wc.hbrBackground );
	return 1;
	}

	case WM_GETDLGCODE:
	return 0;

	case WM_CTLCOLORMSGBOX:
	case WM_CTLCOLOREDIT:
	case WM_CTLCOLORLISTBOX:
	case WM_CTLCOLORBTN:
	case WM_CTLCOLORDLG:
	case WM_CTLCOLORSTATIC:
	SetBkColor( (HDC)wParam, GetSysColor(COLOR_WINDOW) );
	SetTextColor( (HDC)wParam, GetSysColor(COLOR_WINDOWTEXT) );
	return (LONG)sysColorObjects.hbrushWindow;

	case WM_CTLCOLORSCROLLBAR:
	SetBkColor( (HDC)wParam, RGB(255, 255, 255) );
	SetTextColor( (HDC)wParam, RGB(0, 0, 0) );
	UnrealizeObject( sysColorObjects.hbrushScrollbar );
	return (LONG)sysColorObjects.hbrushScrollbar;

	case WM_CTLCOLOR:
	{
	if (HIWORD(lParam) == CTLCOLOR_SCROLLBAR)
	{
	SetBkColor( (HDC)wParam, RGB(255, 255, 255) );
	SetTextColor( (HDC)wParam, RGB(0, 0, 0) );
	UnrealizeObject( sysColorObjects.hbrushScrollbar );
	return (LONG)sysColorObjects.hbrushScrollbar;
	}
	else
	{
	SetBkColor( (HDC)wParam, GetSysColor(COLOR_WINDOW) );
	SetTextColor( (HDC)wParam, GetSysColor(COLOR_WINDOWTEXT) );
	return (LONG)sysColorObjects.hbrushWindow;
	}
	}

	case WM_GETTEXT:
	{
	if (wParam)
	{
	if (wndPtr->hText)
	{
	textPtr = (LPSTR)USER_HEAP_LIN_ADDR(wndPtr->hText);
	if ((int)wParam > (len = strlen(textPtr)))
	{
	strcpy((char *)PTR_SEG_TO_LIN(lParam), textPtr);
	return (DWORD)len;
	}
	}
	}
	return 0;
	}

	case WM_GETTEXTLENGTH:
	{
	if (wndPtr->hText)
	{
	textPtr = (LPSTR)USER_HEAP_LIN_ADDR(wndPtr->hText);
	return (DWORD)strlen(textPtr);
	}
	return 0;
	}

	case WM_SETTEXT:
	DEFWND_SetText( wndPtr, (LPSTR)PTR_SEG_TO_LIN(lParam) );
	NC_HandleNCPaint( hwnd , (HRGN)1 ); /* Repaint caption */
	return 0;

	case WM_SETCURSOR:
	if (wndPtr->dwStyle & WS_CHILD)
	if (SendMessage(wndPtr->parent->hwndSelf, WM_SETCURSOR,
	wParam, lParam))
	return TRUE;
	return NC_HandleSetCursor( hwnd, wParam, lParam );

	case WM_SYSCOMMAND:
	{
	POINT pt = { LOWORD(lParam), HIWORD(lParam) };
	return NC_HandleSysCommand( hwnd, wParam, pt );
	}
	case WM_KEYDOWN:

	if(wParam == VK_F10) iF10Key = VK_F10;
	break;

	case WM_SYSKEYDOWN:

	if( HIWORD(lParam) & KEYDATA_ALT )
	{
	/* if( HIWORD(lParam) & ~KEYDATA_PREVSTATE ) */
	if( wParam == VK_MENU && !iMenuSysKey )
	iMenuSysKey = 1;
	else
	iMenuSysKey = 0;

	iF10Key = 0;

	}
	else if( wParam == VK_F10 )
	iF10Key = 1;
	else
	if( wParam == VK_ESCAPE && GetKeyState(VK_SHIFT) < 0 )
	SendMessage( hwnd, WM_SYSCOMMAND, (WPARAM)SC_KEYMENU,
	(LPARAM)VK_SPACE);
	break;

	case WM_KEYUP:
	case WM_SYSKEYUP:

	/* Press and release F10 or ALT */

	if( ( wParam == VK_MENU && iMenuSysKey )
	\|\| ( wParam == VK_F10 && iF10Key ) )

	SendMessage( WIN_GetTopParent(hwnd), WM_SYSCOMMAND,
	SC_KEYMENU, 0L );

	iMenuSysKey = iF10Key = 0;
	break;

	case WM_SYSCHAR:

	iMenuSysKey = 0;

	if( wParam == VK_RETURN && (wndPtr->dwStyle & WS_MINIMIZE) )
	{
	PostMessage(hwnd, WM_SYSCOMMAND, (WPARAM)SC_RESTORE, 0L );
	break;
	}

	if( (HIWORD(lParam) & KEYDATA_ALT) && wParam )
	{
	if( wParam == VK_TAB \|\| wParam == VK_ESCAPE )
	break;

	if( wParam == VK_SPACE && (wndPtr->dwStyle & WS_CHILD) )
	SendMessage( wndPtr->parent->hwndSelf, msg, wParam, lParam );
	else
	SendMessage(hwnd, WM_SYSCOMMAND, (WPARAM)SC_KEYMENU, (LPARAM)(DWORD)wParam );
	}
	else
	/* check for Ctrl-Esc */
	if( wParam != VK_ESCAPE )
	MessageBeep(0);

	break;

	case WM_SHOWWINDOW:
	if( !lParam ) return 0; /* sent from ShowWindow */

	if( !(wndPtr->dwStyle & WS_POPUP) \|\| !wndPtr->owner )
	return 0;

	if( wndPtr->dwStyle & WS_VISIBLE )
	{ if( wParam ) return 0; }
	else
	if(!wParam ) return 0;

	ShowWindow(hwnd,(wParam)? SW_SHOWNOACTIVATE: SW_HIDE);
	break;

	case WM_CANCELMODE:

	/* EndMenu() should be called if in menu state but currently it's
	impossible to detect - menu code should be updated*/

	if( GetCapture() == hwnd )
	ReleaseCapture();

	break;

	case WM_VKEYTOITEM:
	case WM_CHARTOITEM:
	return -1;

	case WM_DROPOBJECT:
	return DRAG_FILE;

	case WM_QUERYDROPOBJECT:
	if(wndPtr->dwExStyle & WS_EX_ACCEPTFILES)
	return 1;
	break;

	case WM_QUERYDRAGICON:
	{
	HICON hI = 0;

	len = 1;
	while(len < 64)
	if( (hI = LoadIcon(wndPtr->hInstance,MAKEINTRESOURCE(len))) )
	return (LRESULT)hI;
	}
	break;

	case WM_QUERYOPEN:
	case WM_QUERYENDSESSION:
	return 1;

	}
	return 0;
	}