reactos/win32ss/user/user32/windows/dc.c

   1 /*
   2  *  ReactOS kernel
   3  *  Copyright (C) 1998, 1999, 2000, 2001 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /*
  20  * PROJECT:         ReactOS user32.dll
  21  * FILE:            win32ss/user/user32/windows/dc.c
  22  * PURPOSE:         Input
  23  * PROGRAMMER:      Casper S. Hornstrup (chorns@users.sourceforge.net)
  24  * UPDATE HISTORY:
  25  *      09-05-2001  CSH  Created
  26  */
  27
  28 /* INCLUDES ******************************************************************/
  29
  30 #include <user32.h>
  31
  32 #include <wine/debug.h>
  33
  34 /* FUNCTIONS *****************************************************************/
  35
  36
  37 BOOL
  38 WINAPI
  39 GdiReleaseDC(HDC hdc);
  40
  41 /*
  42  * @implemented
  43  */
  44 int
  45 WINAPI
  46 ReleaseDC(HWND hWnd,
  47           HDC hDC)
  48 {
  49     // From msdn: if the DC was not released return zero.
  50     //            if the DC was released return one.
  51
  52     if (!hDC) return FALSE; // Null hDC return zero.
  53
  54     GdiReleaseDC ( hDC ); // Release locals.
  55
  56     return NtUserxReleaseDC(hDC);
  57 }
  58
  59
  60 /*
  61  * @implemented
  62  */
  63 HWND
  64 WINAPI
  65 WindowFromDC(HDC hDC)
  66 {
  67     return NtUserxWindowFromDC(hDC);
  68 }