Imagick::getImageAlphaChannel

(No version information available, might only be in SVN)

Imagick::getImageAlphaChannel — Gets the image alpha channel

Descrizione

int Imagick::getImageAlphaChannel ( void )

Gets the image alpha channel value. The returned value is one of the alpha channel constants. This method is available if Imagick has been compiled against ImageMagick version 6.4.0 or newer.

Valori restituiti

Returns a constant defining the current alpha channel value. Refer to this list of alpha channel constants.

Errori/Eccezioni

Lancia una ImagickException in caso di errore.