TreeView per Klick auslesen

#include <EditConstants.au3>
#include <GUIConstantsEx.au3>
#include <StaticConstants.au3>
#include <TreeViewConstants.au3>
#include <WindowsConstants.au3>
#include <GUITreeView.au3>

$GUI = GUICreate("GUI", 384, 109, 192, 114)
$Tree = GUICtrlCreateTreeView(8, 8, 129, 81, BitOR($TVS_HASBUTTONS, $TVS_HASLINES, $TVS_LINESATROOT, $TVS_DISABLEDRAGDROP, $TVS_SHOWSELALWAYS), $WS_EX_CLIENTEDGE)
$last = GUICtrlCreateInput("", 232, 8, 121, 21)
GUISetState(@SW_SHOW)

$first = GUICtrlCreateTreeViewItem("test 1-1", $Tree)
$second = GUICtrlCreateTreeViewItem("test 2-1", $Tree)
$second1 = GUICtrlCreateTreeViewItem("test line 2-2", $second)

While 1
$nMsg = GUIGetMsg()
Switch $nMsg
Case $GUI_EVENT_CLOSE
Exit
EndSwitch
WEnd