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125 lines
3.4 KiB
C
125 lines
3.4 KiB
C
/*
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* Window painting functions
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*
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* Copyright 1993, 1994, 1995, 2001, 2004, 2005, 2008 Alexandre Julliard
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* Copyright 1996, 1997, 1999 Alex Korobka
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "user_private.h"
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/***********************************************************************
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* GetDC (USER32.@)
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*
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* Get a device context.
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*
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* RETURNS
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* Success: Handle to the device context
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* Failure: NULL.
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*/
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HDC WINAPI GetDC( HWND hwnd )
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{
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if (!hwnd) return NtUserGetDCEx( 0, 0, DCX_CACHE | DCX_WINDOW );
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return NtUserGetDCEx( hwnd, 0, DCX_USESTYLE );
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}
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/***********************************************************************
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* GetWindowDC (USER32.@)
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*/
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HDC WINAPI GetWindowDC( HWND hwnd )
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{
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return NtUserGetDCEx( hwnd, 0, DCX_USESTYLE | DCX_WINDOW );
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}
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/***********************************************************************
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* UpdateWindow (USER32.@)
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*/
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BOOL WINAPI UpdateWindow( HWND hwnd )
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{
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if (!hwnd)
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{
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SetLastError( ERROR_INVALID_WINDOW_HANDLE );
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return FALSE;
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}
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return NtUserRedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_ALLCHILDREN );
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}
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/***********************************************************************
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* ValidateRgn (USER32.@)
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*/
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BOOL WINAPI ValidateRgn( HWND hwnd, HRGN hrgn )
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{
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if (!hwnd)
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{
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SetLastError( ERROR_INVALID_WINDOW_HANDLE );
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return FALSE;
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}
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return NtUserRedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE );
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}
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/***********************************************************************
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* ValidateRect (USER32.@)
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*
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* MSDN: if hwnd parameter is NULL, ValidateRect invalidates and redraws
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* all windows and sends WM_ERASEBKGND and WM_NCPAINT.
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*/
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BOOL WINAPI ValidateRect( HWND hwnd, const RECT *rect )
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{
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UINT flags = RDW_VALIDATE;
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if (!hwnd)
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{
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flags = RDW_ALLCHILDREN | RDW_INVALIDATE | RDW_FRAME | RDW_ERASE | RDW_ERASENOW;
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rect = NULL;
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}
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return NtUserRedrawWindow( hwnd, rect, 0, flags );
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}
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/*************************************************************************
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* ScrollWindow (USER32.@)
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*
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*/
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BOOL WINAPI ScrollWindow( HWND hwnd, INT dx, INT dy,
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const RECT *rect, const RECT *clipRect )
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{
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UINT flags = SW_INVALIDATE | SW_ERASE | (rect ? 0 : SW_SCROLLCHILDREN) | SW_NODCCACHE;
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return NtUserScrollWindowEx( hwnd, dx, dy, rect, clipRect, 0, NULL, flags );
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}
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/************************************************************************
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* PrintWindow (USER32.@)
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*
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*/
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BOOL WINAPI PrintWindow(HWND hwnd, HDC hdcBlt, UINT nFlags)
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{
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UINT flags = PRF_CHILDREN | PRF_ERASEBKGND | PRF_OWNED | PRF_CLIENT;
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if(!(nFlags & PW_CLIENTONLY))
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{
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flags |= PRF_NONCLIENT;
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}
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SendMessageW(hwnd, WM_PRINT, (WPARAM)hdcBlt, flags);
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return TRUE;
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}
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