Extracted from Pike v7.8 release 866 at 2017-11-11.
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GTK2
GTK2.ColorSelection

Method GTK2.ColorSelection()->set_previous_alpha()


Method set_previous_alpha

GTK2.ColorSelection set_previous_alpha(int alpha)

Description

Sets the 'previous' alpha to be alpha. This function should be called with some hesitation, as it might seem confusing to have that alpha change.