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Fixed scroll bug in ScrollWindowEx32 which caused garbage on screen

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outside desktop window with gtwin.exe (Dutch banking program).
This commit is contained in:
Pim Bollen 1998-11-15 18:05:32 +00:00 committed by Alexandre Julliard
parent 737fa07db7
commit a97db5e450
1 changed files with 12 additions and 10 deletions
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22
windows/scroll.c
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@ -354,16 +354,18 @@ rect?rect->left:0, rect?rect->top:0, rect ?rect->right:0, rect ?rect->bottom:0,
if( dy > 0 ) dst.y = (src.y = dc->w.DCOrgY + cliprc.top) + dy;
else src.y = (dst.y = dc->w.DCOrgY + cliprc.top) - dy;
if( bUpdate ) /* handles non-Wine windows hanging over the scrolled area */
TSXSetGraphicsExposures( display, dc->u.x.gc, True );
TSXSetFunction( display, dc->u.x.gc, GXcopy );
TSXCopyArea( display, dc->u.x.drawable, dc->u.x.drawable, dc->u.x.gc,
src.x, src.y, cliprc.right - cliprc.left - abs(dx),
cliprc.bottom - cliprc.top - abs(dy), dst.x, dst.y );
if( bUpdate )
TSXSetGraphicsExposures( display, dc->u.x.gc, False );
if ((cliprc.right - cliprc.left > abs(dx)) &&
(cliprc.bottom - cliprc.top > abs(dy)))
{
if (bUpdate) /* handles non-Wine windows hanging over the scrolled area */
TSXSetGraphicsExposures( display, dc->u.x.gc, True );
TSXSetFunction( display, dc->u.x.gc, GXcopy );
TSXCopyArea( display, dc->u.x.drawable, dc->u.x.drawable, dc->u.x.gc,
src.x, src.y, cliprc.right - cliprc.left - abs(dx),
cliprc.bottom - cliprc.top - abs(dy), dst.x, dst.y );
if (bUpdate)
TSXSetGraphicsExposures( display, dc->u.x.gc, False );
}
if( dc->w.hVisRgn && bUpdate )
{