#include <GUIConstantsEx.au3>
#include <GuiTreeView.au3>
#include <MsgBoxConstants.au3>
#include <WindowsConstants.au3>

Example()

Func Example()
    Local $ahItem[100], $iRand, $idTreeView
    Local $iStyle = BitOR($TVS_EDITLABELS, $TVS_HASBUTTONS, $TVS_HASLINES, $TVS_LINESATROOT, $TVS_DISABLEDRAGDROP, $TVS_SHOWSELALWAYS)

    GUICreate("TreeView Get Visible", 400, 300)

    $idTreeView = GUICtrlCreateTreeView(2, 2, 396, 268, $iStyle, $WS_EX_CLIENTEDGE)
    GUISetState(@SW_SHOW)

    _GUICtrlTreeView_BeginUpdate($idTreeView)
    For $x = 0 To 99
        $ahItem[$x] = _GUICtrlTreeView_Add($idTreeView, 0, StringFormat("[%02d] New Item", $x))
    Next
    _GUICtrlTreeView_EndUpdate($idTreeView)

    $iRand = Random(40, 99, 1)
    MsgBox($MB_SYSTEMMODAL, "Information", StringFormat("Index %d Visible: %s", $iRand, _GUICtrlTreeView_GetVisible($idTreeView, $ahItem[$iRand])))
    _GUICtrlTreeView_EnsureVisible($idTreeView, $ahItem[$iRand])
    MsgBox($MB_SYSTEMMODAL, "Information", StringFormat("Index %d Visible: %s", $iRand, _GUICtrlTreeView_GetVisible($idTreeView, $ahItem[$iRand])))

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