View.SetTransparentColorPart of View module

Syntax   View.SetTransparentColor (colorNumber : int)
Description   The View.SetTransparentColor procedure sets the color in the Run window that should be considered transparent when a picture is drawn on the window using the picUnderMerge mode. If no color is specified, then the default background color (colorbg, usually white) is used as the transparent color. You can change this background color using RGB.SetColor on color 0.

Details This call is often used when you want the Run window to have a background color other than color 0.

Example   This program displays two images loaded from the same file. In the second image,the transparent color has been set to bright red (that is, the parts of the image that are meant to be transparent are in bright red). 

        const SIZE : int := 20
        procedure DrawCheckerBoard
            cls
            for x : 0 .. maxx by SIZE
                for y : 0 .. maxy by SIZE
                    if ((x + y) div SIZE) mod 2 = 0 then
                        Draw.FillBox (x, y, x + SIZE, y + SIZE, brightgreen)
                    end if
                end for
            end for
        end DrawCheckerBoard

        var pic : int := Pic.FileNew ("data files/airplane.bmp")
        Pic.SetTransparentColor (pic, brightred)
        RGB.SetColor (0, 1., 0., 0.)
        DrawCheckerBoard
        Pic.Draw (pic, 100, 100, picUnderMerge)
        View.SetTransparentColor (brightgreen)
        Pic.Draw (pic, 400, 100, picUnderMerge)
Execute  

Details View.SetTransparentColour is an alternate spelling for View.SetTransparentColor.
Status   Exported qualified.

This means that you can only call the function by calling View.SetTransparentColor, not by calling SetTransparentColor.

See also   Pic.SetTransparentColor.