Pic.FlipPart of Pic module

Syntax   Pic.Flip (picID : int) : int

Description   Pic.Flip is used to create a new picture by flipping the picture vertically. The resulting picture is exactly the same size as the original, except it appears “upside-down”.

Details   Note that the upside-down picture is a newly created picture. When it is no longer needed, its memory should be released by using Pic.Free.

Example   The program loads a picture from a file, flips it and then draws the original and the upside-down image side by side in a window after resizing the window to fit the two pictures.

        % Get the original picture
        var pic, newPic, width, height : int
        pic := Pic.FileNew ("lighthouse.jpg")
        newPic := Pic.Flip (pic)
        width := Pic.Width (pic)
        height := Pic.Height (pic)
        
        % Draw the two images: original and flipped
        View.Set ("graphics:" + intstr (2 * width + 30) + ";" + 
            intstr (height + 25) + ",nobuttonbar")
        Pic.Draw (pic, 10, 20, picCopy)
        Draw.Text ("Original", 50, 5, defFontID, black)
        Pic.Draw (newPic, 20 + Pic.Width (pic), 20, picCopy)
        Draw.Text ("Flipped", 60 + Pic.Width (pic), 5, defFontID, black)
Output from the Program

Execute  

Status   Exported qualified.

This means that you can only call the function by calling Pic.Flip, not by calling Flip.