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Determines whether the bitmap has meaningful alpha channel data.
#include "l_bitmap.h"
L_LTKRN_API L_BOOL L_BitmapHasMeaningfulAlpha(pBitmap)
Pointer to the bitmap handle referencing the bitmap to test.
| Value | Meaning |
|---|---|
| TRUE | At least one alpha channel value is not equal to 0xFF. |
| FALSE | Bitmap does not have meaningful alpha or there was an error. |
The bitmap has meaningful alpha if not all pixels have the same alpha value or if the values are all the same but equal to 0x00 or 0xFF.
Win32, x64, Linux.
For an example, refer to L_SetBitmapAlpha.
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