References ▼
Creates a 1-bit mask image from the region in the associated LBitmapBase class object's bitmap.
#include "ltwrappr.h"
virtual L_INT LBitmapRgn::CreateMaskFromBitmapRgn(pLBitmapMask, uStructSize)
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.
| Value | Meaning |
|---|---|
| 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.
Win32, x64.
For an example, refer to LBitmapRgn::SetRgnPolygon.
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