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imagecolortransparent

(PHP 4, PHP 5)

imagecolortransparent — Define a color as transparent

Descrierea

int imagecolortransparent ( resource $image [, int $color ] )

Sets the transparent color in the given image .

Parametri

image

O resursă - imagine, întoarsă de una din funcţiile de creare a imaginilor, cum ar fi imagecreatetruecolor().

color

A color identifier created with imagecolorallocate()

Valorile întroarse

The identifier of the new (or current, if none is specified) transparent color is returned.

Note

Notă: Transparency is copied only with imagecopymerge() and true color images, not with imagecopy() or pallete images.

Notă: 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.