GeneralEventHandler

Try to use general event handler such like:

GraphicsWindow.MouseDown = OnMouseDown
While "True"
  If mouseDown Then
    DoSomething()
    mouseDown = "False"
  Else
    Program.Delay(200)
  EndIf
EndWhie
Sub OnMouseDown
  dx = GraphicsWindow.MouseX
  dy = GraphicsWindow.MouseY
  mouseDown = "True"
EndSub

Sub OnKeyDown
  keyDown = "True"
EndSub

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