If OpenWindow(0,0,0,500,250,"Window",#PB_Window_SystemMenu|#PB_Window_ScreenCentered)
  SetWindowLongPtr_(WindowID(0),#GWL_EXSTYLE,#WS_EX_LAYOUTRTL)
  SendMessage_(WindowID(0),#WM_NCPAINT,1,0)
Repeat : Until WaitWindowEvent() = #PB_Event_CloseWindow
EndIf