imagecolorexactalpha
(PHP 4 >= 4.0.6, PHP 5)
imagecolorexactalpha -- Get the index of the specified color + alpha
Description
int
imagecolorexactalpha ( resource image, int red, int green, int blue, int alpha )
Returns the index of the specified color+alpha in the palette of the
image.
If the color does not exist in the image's palette, -1 is
returned.
Note: This function requires GD 2.0.1 or later.
See also imagecolorclosestalpha().