The TransRed, TransGreen, and TransBlue properties are used to set a transparent color in the base (raster) image.
Reference
TransRed The transparent color's red value.
Values range from 0 to 255
Explanation
The TransRed, TransGreen, and TransBlue properties are used to set a transparent color in the base (raster) image. The ImageKit Control background will be seen in the areas of the image that are set to transparent. To set a transparent color in an image, the image must be either 8 bit color or 24 bit color. If a vector image is set in the base image, these properties are disabled.
To set a transparent color in an image layer, please refer to the Layer.TransRed, Layer.TransGreen, and Layer.TransBlue properties.
Example: Setting the transparent color to white
ImageKit1.TransBlue := 255;
VImageKit1.TransGreen := 255;
VImageKit1.TransRed := 255;
VImageKit1.Transparent := True;
VImageKit1.LayerNo := -1;
VImageKit1.File.LoadFile(vikLoad);
Setting this value
This value can be set at design-time and run-time.
Retrieving this value
This value can be retrieved at run-time.