imagecolortransparent
(PHP 4, PHP 5)
imagecolortransparent — Define a color as transparent
Descrizione
int imagecolortransparent
( resource $image
[, int $color
] )
Sets the transparent color in the given image .
Elenco dei parametri
- image
-
Una risorsa immagine, restituita da una delle funzioni di creazione immagine, come imagecreatetruecolor().
- color
-
A color identifier created with imagecolorallocate()
Valori restituiti
The identifier of the new (or current, if none is specified) transparent color is returned.
Note
Nota: Transparency is copied only with imagecopymerge() and true color images, not with imagecopy() or pallete images.
Nota: 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.