gfx:clear-image

(gfx:clear-image image [colour])


Description:

Clear entire image to 100% transparent or use colour if supplied


Arguments:

          image -- image to clear

         colour -- optional colour argument (default is transparent)


Returns: boolean


Examples:

(gfx:clear-image image)

(gfx:clear-image image '(0.1 0.4 0.9 1.0))



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