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Imagick::setImageAlphaChannel

(No version information available, might only be in Git)
Sets image alpha channel
bool Imagick::setImageAlphaChannel ( int $mode )

Activate or deactivate image alpha channel. The mode is one of the Imagick::ALPHACHANNEL_* constants. This method is available if Imagick has been compiled against ImageMagick version 6.3.8 or newer.

Parameters:
mode

One of the Imagick::ALPHACHANNEL_* constants

Returns:

Returns TRUE on success.

Exception:

Throws ImagickException on error.

See also:

Imagick::setImageMatte() -

Imagick Alpha Channel Constants -

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2016-02-24 16:01:19
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