|Syntax|| whatdotcolor ( x, y : int ) : int|
|Description|| The whatdotcolor function is used to determine the color number of the specified pixel. The alternate spelling is whatdotcolour.|
|Example|| This program draws a line which bounces off the edges of the screen and makes a beep when it finds a pixel that has already been colored.|
setscreen ( "graphics" ) var x, y : int := 0 var dx, dx : int := 1 loop if whatdotcolor ( x, y ) not= 0 then sound ( 400, 50 ) end if drawdot ( x, y, 1 ) x := x + dx y := y + dy if x = 0 or x = maxx then dx := -dx end if if y = 0 or y = maxy then dy := -dy end if end loop
|Details|| The screen should be in a"graphics" mode. If is not set to "graphics" mode, it will automatically be set to "graphics" mode. See setscreen for details.|
|See also|| drawdot, which is used for setting the color of a pixel. See also maxx and maxy, which are used to determine the number of pixels on the screen. See also sound, which causes the computer to make a sound.|
See also predefined unit View.