#include <GUIConstantsEx.au3>
#include <GuiListView.au3>
#include <MsgBoxConstants.au3>

Example()

Func Example()
    Local $idListview

    GUICreate("ListView Get Selected Count", 400, 300)
    $idListview = GUICtrlCreateListView("", 2, 2, 394, 268, BitOR($LVS_SHOWSELALWAYS, $LVS_REPORT))
    GUISetState(@SW_SHOW)

    ; Ajoute des colonnes
    _GUICtrlListView_AddColumn($idListview, "Column 1", 100)

    ; Ajoute des éléments
    _GUICtrlListView_AddItem($idListview, "Item 1")
    _GUICtrlListView_AddItem($idListview, "Item 2")
    _GUICtrlListView_AddItem($idListview, "Item 3")

    ; Sélectionne plusieurs éléments
    _GUICtrlListView_SetItemSelected($idListview, 1)
    _GUICtrlListView_SetItemSelected($idListview, 2)
    MsgBox($MB_SYSTEMMODAL, "Information", "Selected Count: " & _GUICtrlListView_GetSelectedCount($idListview))

    ; Boucle jusqu'à ce que l'utilisateur quitte.
    Do
    Until GUIGetMsg() = $GUI_EVENT_CLOSE

    GUIDelete()
EndFunc   ;==>Example