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 #include <user32.h> 29 30 BOOL 31 WINAPI 32 GdiReleaseDC(HDC hdc); 33 34 /* 35 * @implemented 36 */ 37 int 38 WINAPI 39 ReleaseDC(HWND hWnd, 40 HDC hDC) 41 { 42 // From msdn: if the DC was not released return zero. 43 // if the DC was released return one. 44 45 if (!hDC) return FALSE; // Null hDC return zero. 46 47 GdiReleaseDC ( hDC ); // Release locals. 48 49 return NtUserxReleaseDC(hDC); 50 } 51 52 53 /* 54 * @implemented 55 */ 56 HWND 57 WINAPI 58 WindowFromDC(HDC hDC) 59 { 60 return NtUserxWindowFromDC(hDC); 61 } 62