;Autor: neotoma

Procedure.f Editor_GetZoomPct(Gadget)
  Protected wParam.l, hParam.l  , result.l
  result.l =  SendMessage_(GadgetID(Gadget),#EM_GETZOOM,@wParam, @hParam)
 
  If wParam=0 And hParam = 0
    ProcedureReturn 100
  EndIf
 
  ProcedureReturn (wParam/hParam *100)
EndProcedure

Procedure Editor_SetZoomPct(Gadget,zoom.l)
  Protected result.l
  result.l =  SendMessage_(GadgetID(Gadget),#EM_SETZOOM,zoom,10)
EndProcedure

If OpenWindow(0,0,0,500,250,"Window",#PB_Window_SystemMenu|#PB_Window_ScreenCentered)
  EditorGadget(1,10,10,480,230,0)
  AddGadgetItem(1,-1,"Teststring",0,0)
  
  Editor_SetZoomPct(1,50)
  
  MessageRequester("","Zoom-Faktor: "+StrF(Editor_GetZoomPct(1),0)+" %",0) 
   
Repeat : Until WaitWindowEvent() = #PB_Event_CloseWindow
EndIf