If OpenWindow(0,0,0,500,250,"Window",#PB_Window_SystemMenu|#PB_Window_ScreenCentered) ListIconGadget(1,10,10,480,230,"Column 1",100,0) AddGadgetColumn(1,1,"Column 2",100) AddGadgetColumn(1,2,"Column 3",100) AddGadgetColumn(1,3,"Column 4",100) columntotal = SendMessage_(SendMessage_(GadgetID(1),#LVM_GETHEADER,0,0), #HDM_GETITEMCOUNT,0,0) MessageRequester("","Anzahl der Spalten: "+Str(columntotal),0) Repeat : Until WaitWindowEvent() = #PB_Event_CloseWindow EndIf