imagecolortransparent
(PHP 4, PHP 5)
imagecolortransparent — Define a color as transparent
Description
int imagecolortransparent
( resource $image
[, int $color
] )
Return Values
The identifier of the new (or current, if none is specified)
transparent color is returned.
Notes
Note:
Transparency is copied only with imagecopymerge() and
true color images, not with imagecopy() or pallete images.
Note:
The transparent color is a property of the image, transparency is not a
property of the color. Once you have set a color to be the transparent
color, any regions of the image in that color that were drawn previously
will be transparent.
imagecolorstotal
