The FLICK procedure causes the display to flicker between two output images at a given rate.
            This routine is written in the IDL language. Its source code can be found in the file flick.pro in the lib subdirectory of the IDL distribution.
            Syntax
            FLICK, A, B [, Rate]
            Arguments
            A
            Byte image number 1, scaled from 0 to 255. 
            B
            Byte image number 2, scaled from 0 to 255.
            Rate
            The flicker rate. The default is 1.0 sec/frame
            Keywords
            None.
            Version History
            
            See Also
            CW_ANIMATE, XINTERANIMATE