Imagick::setImageAlphaChannel

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Imagick::setImageAlphaChannel — Sets image alpha channel

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Imagick::setImageAlphaChannel ( int $mode ) : bool

Activate or deactivate image alpha channel. The mode is one of the Imagick::ALPHACHANNEL_* constants. �˷�����Imagick����ImageMagick 6.3.8���ϰ汾����ʱ���á�

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mode

One of the Imagick::ALPHACHANNEL_* constants

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