virtual L_INT LBitmapRgn::CreateMaskFromBitmapRgn(pLBitmapMask, uStructSize)
Creates a 1-bit mask image from the region in the associated LBitmapBase class object's bitmap.
Pointer to an LBitmapBase object that will be updated with the mask bitmap.
Size of BITMAPHANDLE structure in bytes. Use the sizeof() operator to calculate this value.
|SUCCESS||The function was successful.|
|< 1||An error occurred. Refer to Return Codes.|
A bitmap region is an area of interest within a bitmap. A bitmap can have only one region at a time, but the region can be complex, including, for example, multiple noncontiguous shapes. For more information, refer to Creating a Bitmap Region.
For an example, refer to LBitmapRgn::SetRgnPolygon.
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