====== IMAGECOLORKEY property ======


 
==== Applies To ====
 
 
 
==== Description ====
 
This property specifies the color to use as the transparent color when rendering the image.  It replaces the current IMAGETRANSPARENT and TRANSPARENTCOLOR properties, both of which have been deprecated.
 
==== Usage ====
 
This property should be a valid RGB color value or one of the following special values:
 
==== Remarks ====
 

^Value^Description^
|"-1"|Use the color of the top left pixel as the color-key.|
|"-2"|Use the color of the top-right pixel as the color-key.|
|"-3"|Use the color of the bottom-left pixel as the color-key.|
|"-4"|Use the color of the bottom-right pixel as the color-key.|
|"-5"|Do not use any color-keying.|