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Default clipping region should be resolution of the DC, not the 

current visible region.
This commit is contained in:
Robert Shearman 2004-09-02 20:08:30 +00:00 committed by Alexandre Julliard
parent e07e1ee547
commit a355c84d28
1 changed files with 14 additions and 9 deletions
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23
dlls/gdi/clipping.c
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@ -51,6 +51,18 @@ void CLIPPING_UpdateGCRegion( DC * dc )
dc->funcs->pSetDeviceClipping( dc->physDev, dc->hVisRgn, dc->hClipRgn );
}
/***********************************************************************
* create_default_clip_rgn
*
* Create a default clipping region when none already exists.
*/
static inline void create_default_clip_region( DC * dc )
{
dc->hClipRgn = CreateRectRgn(0, 0,
GetDeviceCaps( dc->hSelf, HORZRES ),
GetDeviceCaps( dc->hSelf, VERTRES ));
}
/***********************************************************************
* SelectClipRgn (GDI32.@)
@ -97,11 +109,7 @@ INT WINAPI ExtSelectClipRgn( HDC hdc, HRGN hrgn, INT fnMode )
else
{
if (!dc->hClipRgn)
{
RECT rect;
GetRgnBox( dc->hVisRgn, &rect );
dc->hClipRgn = CreateRectRgnIndirect( &rect );
}
create_default_clip_region( dc );
if(fnMode == RGN_COPY)
CombineRgn( dc->hClipRgn, hrgn, 0, fnMode );
@ -206,10 +214,7 @@ INT WINAPI ExcludeClipRect( HDC hdc, INT left, INT top,
else
{
if (!dc->hClipRgn)
{
dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
CombineRgn( dc->hClipRgn, dc->hVisRgn, 0, RGN_COPY );
}
create_default_clip_region( dc );
ret = CombineRgn( dc->hClipRgn, dc->hClipRgn, newRgn, RGN_DIFF );
DeleteObject( newRgn );
}