Grid values are clipped to the high and low values stored in the object Outputs the modified grid An integer can be used to vary the minimum value of the range. An integer can be used to vary the maximum value of the range. <-- value to be displayed <-- colour Draws a slider-like rectangle (or progress bar) on an image. composition mode rgb fill colour rgb outline colour (y1 x1 y2 x2) position minimum value maximum value