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The paint rectangle return in the PAINTSTRUCT in BeginPaint should 

never be bigger than the client area of the window.
This commit is contained in:
Stephane Lussier 1999-08-21 13:06:24 +00:00 committed by Alexandre Julliard
parent d35c834b77
commit e5711ebea4
1 changed files with 10 additions and 1 deletions
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11
windows/painting.c
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@ -264,6 +264,7 @@ HDC16 WINAPI BeginPaint16( HWND16 hwnd, LPPAINTSTRUCT16 lps )
{
BOOL bIcon;
HRGN hrgnUpdate;
RECT16 clipRect, clientRect;
WND *wndPtr = WIN_FindWndPtr( hwnd );
if (!wndPtr) return 0;
@ -321,7 +322,15 @@ HDC16 WINAPI BeginPaint16( HWND16 hwnd, LPPAINTSTRUCT16 lps )
return 0;
}
GetClipBox16( lps->hdc, &lps->rcPaint );
/* It is possible that the clip box is bigger than the window itself,
if CS_PARENTDC flag is set. Windows never return a paint rect bigger
than the window itself, so we need to intersect the cliprect with
the window */
/* GetClipBox16( lps->hdc, &lps->rcPaint );*/
GetClipBox16( lps->hdc, &clipRect );
GetClientRect16( hwnd, &clientRect );
IntersectRect16(&lps->rcPaint, &clientRect, &clipRect);
TRACE_(win)("box = (%i,%i - %i,%i)\n", lps->rcPaint.left, lps->rcPaint.top,
lps->rcPaint.right, lps->rcPaint.bottom );