Hello. Is it possible to create listbox that would update other control if user clicks on listbox item one time, and do some other action if user uses doubleclick? Here's what I tried: #include "GUIConstants.au3" Dim $Lastselected = "" GUICreate("SomeGUI") $test1 = GUICtrlCreateList ("" , 10, 10,150,350 ) $test2 = GUICtrlCreateList ("" , 170, 10,150,350 ) GuiCtrlSetData($test1, "1|2|3|4|5" ) GuiSetState () While 1 $msg = GUIGetMsg() Select Case $msg = $GUI_EVENT_CLOSE