History of Aval

== Syntax ==

:int Aval(int rgba)

== Arguments ==

:rgba

::A 32-bit quadruple holding values for the three color channels, plus the alpha channel, each as eight bits.

== Return ==

:A value in the range 0 to 255 inclusive.

== Description ==

:The value returned is the value for the alpha channel, extracted from the quadruple.

== Example ==

== Also see ==

:Rval,Gval,Bval

== Comments ==

:Everyone can add his comments about his experiences with this function here. Tips for using it are welcome, too.