Gets the alpha value for pixel at given location
PixelAlpha(x as Integer,
y as Integer) as UInt8
Parameters
- x
- The x coordinate to set or get (zero based)
- y
- The x coordinate to set or get (zero based)
Returns
- UInt8
- The alpha value when using the getter.
Remarks
If the RawBitmap has no alpha channel then this getter / setter function does nothing.
This method has no meaningful result when using CMYK colorspace.
This method does nothing on 16bit per channel bitmaps.