#include "Extras\WM_NOTIFY.au3"

#include <GUIConstantsEx.au3>
#include <GuiImageList.au3>
#include <GuiTreeView.au3>
#include <StructureConstants.au3>
#include <WindowsNotifsConstants.au3>
#include <WindowsStylesConstants.au3>

Global $g_idTreeView

Example()

Func Example()
    GUICreate("TreeView Click Item (v" & @AutoItVersion & ")", 400, 300)

    Local $iStyle = BitOR($TVS_EDITLABELS, $TVS_HASBUTTONS, $TVS_HASLINES, $TVS_LINESATROOT, $TVS_DISABLEDRAGDROP, $TVS_SHOWSELALWAYS, $TVS_CHECKBOXES)
    $g_idTreeView = GUICtrlCreateTreeView(2, 2, 396, 268, $iStyle, $WS_EX_CLIENTEDGE)
    GUISetState(@SW_SHOW)

    _WM_NOTIFY_Register()

    Local $hImage = _GUIImageList_Create(16, 16, 5, 3)
    _GUIImageList_AddIcon($hImage, "shell32.dll", 110)
    _GUIImageList_AddIcon($hImage, "shell32.dll", 131)
    _GUIImageList_AddIcon($hImage, "shell32.dll", 165)
    _GUIImageList_AddIcon($hImage, "shell32.dll", 168)
    _GUIImageList_AddIcon($hImage, "shell32.dll", 137)
    _GUIImageList_AddIcon($hImage, "shell32.dll", 146)
    _GUICtrlTreeView_SetNormalImageList($g_idTreeView, $hImage)

    _GUICtrlTreeView_BeginUpdate($g_idTreeView)
    Local $hItem, $iImage
    For $x = 0 To 5
        $iImage = Random(0, 5, 1)
        $hItem = _GUICtrlTreeView_Add($g_idTreeView, 0, StringFormat("[%02d] New Item", $x), $iImage, $iImage)
        For $y = 0 To 3
            $iImage = Random(0, 5, 1)
            _GUICtrlTreeView_AddChild($g_idTreeView, $hItem, StringFormat("[%02d] New Child", $y), $iImage, $iImage)
        Next
    Next
    _GUICtrlTreeView_EndUpdate($g_idTreeView)

    _GUICtrlTreeView_ClickItem($g_idTreeView, $hItem, "left", False, 2)

    ; Loop until the user exits.
    Do
    Until GUIGetMsg() = $GUI_EVENT_CLOSE
    GUIDelete()
EndFunc   ;==>Example

Func WM_NOTIFY($hWnd, $iMsg, $wParam, $lParam)
    #forceref $hWnd, $iMsg, $wParam
    Local $hWndTreeview = $g_idTreeView
    If Not IsHWnd($g_idTreeView) Then $hWndTreeview = GUICtrlGetHandle($g_idTreeView)

    Local $tNMHDR = DllStructCreate($tagNMHDR, $lParam)
    Local $hWndFrom = HWnd(DllStructGetData($tNMHDR, "hWndFrom"))
    Local $iCode = DllStructGetData($tNMHDR, "Code")
    Switch $hWndFrom
        Case $hWndTreeview
            Switch $iCode
                Case $NM_CLICK ; The user has clicked the left mouse button within the control
                    _WM_NOTIFY_DebugEvent("$NM_CLICK", $tagNMHDR, $lParam, "hWndFrom,IDFrom")
                    ; Return 1 ; nonzero to not allow the default processing
                    Return 0 ; zero to allow the default processing
                Case $NM_DBLCLK ; The user has double-clicked the left mouse button within the control
                    _WM_NOTIFY_DebugEvent("$NM_DBLCLK", $tagNMHDR, $lParam, "hWndFrom,IDFrom")
                    ; Return 1 ; nonzero to not allow the default processing
                    Return 0 ; zero to allow the default processing
                Case $NM_RCLICK ; The user has clicked the right mouse button within the control
                    _WM_NOTIFY_DebugEvent("$NM_RCLICK", $tagNMHDR, $lParam, "hWndFrom,IDFrom")
                    ; Return 1 ; nonzero to not allow the default processing
                    Return 0 ; zero to allow the default processing
                Case $NM_RDBLCLK ; The user has double-clicked the right mouse button within the control
                    _WM_NOTIFY_DebugEvent("$NM_RDBLCLK", $tagNMHDR, $lParam, "hWndFrom,IDFrom")
                    ; Return 1 ; nonzero to not allow the default processing
                    Return 0 ; zero to allow the default processing
            EndSwitch
    EndSwitch
    Return $GUI_RUNDEFMSG
EndFunc   ;==>WM_NOTIFY