2 * Scroll windows and DCs
4 * Copyright David W. Metcalfe, 1993
5 * Alex Korobka 1995,1996
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #include "wine/winuser16.h"
29 #include "wine/debug.h"
31 WINE_DEFAULT_DEBUG_CHANNEL(scroll);
33 /*************************************************************************
34 * ScrollWindow (USER32.@)
37 BOOL WINAPI ScrollWindow( HWND hwnd, INT dx, INT dy,
38 const RECT *rect, const RECT *clipRect )
41 (ERROR != ScrollWindowEx( hwnd, dx, dy, rect, clipRect, 0, NULL,
42 (rect ? 0 : SW_SCROLLCHILDREN) |
46 /*************************************************************************
49 BOOL16 WINAPI ScrollDC16( HDC16 hdc, INT16 dx, INT16 dy, const RECT16 *rect,
50 const RECT16 *cliprc, HRGN16 hrgnUpdate,
53 RECT rect32, clipRect32, rcUpdate32;
56 if (rect) CONV_RECT16TO32( rect, &rect32 );
57 if (cliprc) CONV_RECT16TO32( cliprc, &clipRect32 );
58 ret = ScrollDC( hdc, dx, dy, rect ? &rect32 : NULL,
59 cliprc ? &clipRect32 : NULL, hrgnUpdate, &rcUpdate32 );
60 if (rcUpdate) CONV_RECT32TO16( &rcUpdate32, rcUpdate );
65 /*************************************************************************
68 * Only the hrgnUpdate is return in device coordinate.
69 * rcUpdate must be returned in logical coordinate to comply with win API.
72 BOOL WINAPI ScrollDC( HDC hdc, INT dx, INT dy, const RECT *rc,
73 const RECT *prLClip, HRGN hrgnUpdate,
76 if (USER_Driver.pScrollDC)
77 return USER_Driver.pScrollDC( hdc, dx, dy, rc, prLClip, hrgnUpdate, rcUpdate );
82 /*************************************************************************
83 * ScrollWindowEx (USER32.@)
85 * NOTE: Use this function instead of ScrollWindow32
87 INT WINAPI ScrollWindowEx( HWND hwnd, INT dx, INT dy,
88 const RECT *rect, const RECT *clipRect,
89 HRGN hrgnUpdate, LPRECT rcUpdate,
92 if (USER_Driver.pScrollWindowEx)
93 return USER_Driver.pScrollWindowEx( hwnd, dx, dy, rect, clipRect,
94 hrgnUpdate, rcUpdate, flags );