[Creat0R]

необходимо проверять что выбран какойто элемент »

Тут Case'ом не обойтись.

Нужно делать так:

Код:

#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <GUIListView.au3>

Global $bItemChanged = False

$hGUI = GUICreate("(Internal) ListView Get Item Text", 400, 300)

$hListView = _GUICtrlListView_Create($hGUI, "Items", 2, 2, 394, 268)

_GUICtrlListView_InsertItem($hListView, "Item 1")
_GUICtrlListView_InsertItem($hListView, "Item 2")
_GUICtrlListView_InsertItem($hListView, "Item 3")

GUIRegisterMsg($WM_NOTIFY, "WM_NOTIFY")
GUISetState()

While 1
    Switch GUIGetMsg()
        Case $GUI_EVENT_CLOSE
            Exit
    EndSwitch

    If $bItemChanged Then
        $bItemChanged = False

        $iIndx = _GUICtrlListView_GetSelectedIndices($hListView)
        ConsoleWrite('Item changed: ' & _GUICtrlListView_GetItemText($hListView, Number($iIndx)) & @LF)
    EndIf
WEnd


Func WM_NOTIFY($hWnd, $iMsg, $iwParam, $ilParam)
    Local $hWndFrom, $iIDFrom, $iCode, $tNMHDR, $hWndListView
    $hWndListView = $hListView
    If Not IsHWnd($hListView) Then $hWndListView = GUICtrlGetHandle($hListView)

    $tNMHDR = DllStructCreate($tagNMHDR, $ilParam)
    $hWndFrom = HWnd(DllStructGetData($tNMHDR, "hWndFrom"))
    $iIDFrom = DllStructGetData($tNMHDR, "IDFrom")
    $iCode = DllStructGetData($tNMHDR, "Code")

    Switch $hWndFrom
        Case $hWndListView
            Switch $iCode
                Case $LVN_HOTTRACK; Sent by a list-view control when the user moves the mouse over an item

                Case $LVN_ITEMCHANGED, $NM_CLICK ; An item has changed/clicked
                    $bItemChanged = True
                Case $LVN_ITEMCHANGING; An item is changing
                    ;Return True; prevent the change
                    ;Return False; allow the change
            EndSwitch
    EndSwitch

    Return $GUI_RUNDEFMSG
EndFunc