You need edit some line under:
Func _WM_NOTIFY >>> Func WM_NOTIFY
If Not IsHWnd($hListView) Then $hWndListView = GUICtrlGetHandle($hListView)
>>>>>>>
If Not IsHWnd($LVid) Then $hWndListView = GUICtrlGetHandle($LVid)
Beep(900,300( >>>>> Beep(900,300)
I tested your code work