func Init()
  if(linked(doActivate))
    include('shell')
  end
  if(linked(doShow) or linked(doCaption) or linked(doClose))
    include('dwx')
    stack &= block.select(BLK_OBJ)
    if(linked(doShow))
      println('dwx.Register "user32", "ShowWindow", "i=hl"')
    end
    if(linked(doCaption))
      println('dwx.Register "user32", "SetWindowText", "i=hs"')
    end
    if(linked(doClose))
      println('dwx.Register "user32", "PostMessage", "i=huul"')
    end
    block.select(_arr.pop(stack))
  end
end

func doActivate(_data)
  println('shell.AppActivate ', Caption)
end

func doShow(_data)
  if(isset(WindowID))
    println('dwx.ShowWindow ', WindowID, ', ', Mode)
  end
end

func doCaption(_data)
  if(isset(WindowID))
    println('dwx.SetWindowText ', WindowID, ', ', Caption)
  end
end

func doClose(_data)
  if(isset(WindowID))
    println('dwx.PostMessage ', WindowID, ', 16, 0, 0')
  end
end