This command will set the general colorkey for all images.

SET IMAGE COLORKEY Red Value, Green Value, Blue Value

Red Value

Integer
The red part of the colour to use has transparent

Green Value

Integer
The green part of the colour to use has transparent

Blue Value

Integer
The blue part of the colour to use has transparent

This command does not return a value.

A colorkey allows you to specify a particular RGB colour that will be treated as transparent by the image when used. Transparent pixels of an image are not drawn. You must use this command before loading or grabbing an image in order that a suitable alpha map be generated from the transparent pixels of the desired image to be calculated. The alpha map is then used to decide which pixels are drawn and which pixels are never rendered. Be aware that setting the color key for the purpose of transparency will not work on images based on the PNG, TGA and DDS file format as these carry their own alpha channel and describe their own pattern of transparency.

set image colorkey 255,0,0

load image "car.bmp",1

cls

paste image 1,100,100

do

loop

end

IMAGE Commands Menu
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