typedef struct_tagVIGNETTEINFO 
   L_UINT uStructSize; 
   POINT ptCenter; 
   L_INT nFading; 
   L_UINT uFadingRate; 
   L_UINT uWidth; 
   L_UINT uHeight; 
   COLORREF crVigColor; 
   L_UINT uFlags; 

The VIGNETTEINFO structure provides the information needed for the L_VignetteBitmap function.

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