Line

This function draws a line from x1,y1 to x2,y2 and exits with COLOR=Color.

    int x1      Horizontal location of starting pixel of line.  
    int y1      Vertical location of starting pixel of line.  
    int x2      Horizontal location of ending pixel of line.  
    int y2      Vertical location of ending pixel of line.  
    UINT Color  Color of line to be drawn.