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Imagick::getImageAlphaChannelGets the image alpha channel


int Imagick::getImageAlphaChannel ( void )

Gets the image alpha channel value. The returned value is one of the alpha channel constants. Questo metodo è disponibile se Imagick è stato compilato con ImageMagick versione 6.4.0 o successive.

Valori restituiti

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


Lancia una ImagickException in caso di errore.

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