GraphicsWindow.LastKey

[litdev]

Depending on what your program actually does this may not be the best approach, but the following may work for you.  Others may have different approaches, maybe LDUtilities.KeyDown, GraphicsWindow.KeyDown event - a challenge to find different ways to write WaitForReturnKey subroutine?

Code:

GraphicsWindow.Show()

While ("True")
  WaitForReturnKey()
  GraphicsWindow.BackgroundColor = GraphicsWindow.GetRandomColor()
EndWhile

Sub WaitForReturnKey
  key = "" 'Make sure key isn't initially Return before LastKey sets it
  LDTextWindow.SendKey(GraphicsWindow.Title,"Space") 'Send a Space key so initially LastKey is not Return
  While key <> "Return"
    key = GraphicsWindow.Lastkey
    Program.Delay(10) 'Don't mash cpu
  EndWhile
EndSub