[PATCH v2 0/2] MR10235: gdiplus: Validate window handle in has_gdi_dc

[Yeshun Ye (＠yeyeshun)]

graphics->owndc being TRUE indicates that graphics is created using GdipCreateFromHWND. In has_gdi_dc, it is necessary to check whether the window has already been destroyed.

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  v2: gdiplus: Validate window handle in GdipMeasureString
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/10235