EnableExplicit

If OpenWindow(0,0,0,500,250,"Window",#PB_Window_SystemMenu|#PB_Window_ScreenCentered)
;If OpenWindow(0,0,0,500,250,"Window",#PB_Window_BorderLess|#PB_Window_ScreenCentered)
  If GetWindowLongPtr_(WindowID(0),#GWL_STYLE)&#WS_BORDER
    MessageRequester("","Fensterrahmen: Ja",0)
  Else
    MessageRequester("","Fensterrahmen: Nein",0)
  EndIf
  End
  
Repeat : Until WaitWindowEvent() = #PB_Event_CloseWindow
EndIf