AccusoftImagXpress13 ActiveX DLL > ImagXpress Object : AlphaAdd64 Method |
Visual Basic |
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Public Sub AlphaAdd64( _ ByVal hDIB As __int64 _ ) |
This method is intended for 64-bit environments; use this instead of the AlphaAdd Method.
Adds a user supplied 8 bit alpha channel to an existing 24 bit image, thus promoting the image to 32 bits. The current image (ProcessImageID) is now a 32 bit image, containing alpha channel.
The Image at hDIB should be the same width and height of the image it is being added to. The Image Bitmap must be an 8 bit gray scale type with a uniform grayscale palette.
If the original image is not 24-bit then an exception is thrown.