If OpenWindow(0,0,0,500,250,"Window",#PB_Window_SystemMenu|#PB_Window_ScreenCentered)
  EditorGadget(1,10,10,480,200,0)
  TrackBarGadget(2,10,220,480,20,1,100,0)
  
  AddGadgetItem(1,-1,"Teststring",0,0)
Repeat
EventID=WaitWindowEvent()
If EventID=#PB_Event_Gadget
  Select EventGadget()
   Case 2
     SendMessage_(GadgetID(1),#EM_SETZOOM,GetGadgetState(2),10)
  EndSelect
EndIf
Until EventID = #PB_Event_CloseWindow
EndIf