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/*
* Scroll windows and DCs
*
* Copyright David W. Metcalfe, 1993
* Alex Korobka 1995,1996
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
#include "windef.h"
#include "wingdi.h"
#include "wine/winuser16.h"
#include "winuser.h"
#include "user.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(scroll);
/*************************************************************************
* ScrollWindow (USER32.@)
*
*/
BOOL WINAPI ScrollWindow( HWND hwnd, INT dx, INT dy,
const RECT *rect, const RECT *clipRect )
{
return
(ERROR != ScrollWindowEx( hwnd, dx, dy, rect, clipRect, 0, NULL,
(rect ? 0 : SW_SCROLLCHILDREN) |
SW_INVALIDATE ));
}
/*************************************************************************
* ScrollDC (USER.221)
*/
BOOL16 WINAPI ScrollDC16( HDC16 hdc, INT16 dx, INT16 dy, const RECT16 *rect,
const RECT16 *cliprc, HRGN16 hrgnUpdate,
LPRECT16 rcUpdate )
{
RECT rect32, clipRect32, rcUpdate32;
BOOL16 ret;
if (rect) CONV_RECT16TO32( rect, &rect32 );
if (cliprc) CONV_RECT16TO32( cliprc, &clipRect32 );
ret = ScrollDC( hdc, dx, dy, rect ? &rect32 : NULL,
cliprc ? &clipRect32 : NULL, hrgnUpdate, &rcUpdate32 );
if (rcUpdate) CONV_RECT32TO16( &rcUpdate32, rcUpdate );
return ret;
}
/*************************************************************************
* ScrollDC (USER32.@)
*
* Only the hrgnUpdate is return in device coordinate.
* rcUpdate must be returned in logical coordinate to comply with win API.
*
*/
BOOL WINAPI ScrollDC( HDC hdc, INT dx, INT dy, const RECT *rc,
const RECT *prLClip, HRGN hrgnUpdate,
LPRECT rcUpdate )
{
if (USER_Driver.pScrollDC)
return USER_Driver.pScrollDC( hdc, dx, dy, rc, prLClip, hrgnUpdate, rcUpdate );
return FALSE;
}
/*************************************************************************
* ScrollWindowEx (USER32.@)
*
* NOTE: Use this function instead of ScrollWindow32
*/
INT WINAPI ScrollWindowEx( HWND hwnd, INT dx, INT dy,
const RECT *rect, const RECT *clipRect,
HRGN hrgnUpdate, LPRECT rcUpdate,
UINT flags )
{
if (USER_Driver.pScrollWindowEx)
return USER_Driver.pScrollWindowEx( hwnd, dx, dy, rect, clipRect,
hrgnUpdate, rcUpdate, flags );
return ERROR;
}
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