Widerspruch in der Hilfe zur Fkt. GUICtrlGetHandel() ?

1. offizieller Beitrag
    • Offizieller Beitrag

    Hi,
    beim Wühlen in den neuen ListView-Funktionen ist mir etwas aufgefallen.
    In der Hilfe wird folgende WM_NOTIFY Funktion verwendet:

    Spoiler anzeigen
    [autoit]

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

    [/autoit] [autoit][/autoit] [autoit]

    $tNMHDR = DllStructCreate($tagNMHDR, $ilParam)
    $hWndFrom = HWnd(DllStructGetData($tNMHDR, "hWndFrom"))
    $iIDFrom = DllStructGetData($tNMHDR, "IDFrom")
    $iCode = DllStructGetData($tNMHDR, "Code")
    Switch $hWndFrom
    Case $hWndListView
    Switch $iCode
    Case $LVN_COLUMNCLICK ; A column was clicked
    Local $tInfo = DllStructCreate($tagNMLISTVIEW, $ilParam)
    _DebugPrint("$LVN_COLUMNCLICK" & @LF & "--> hWndFrom:" & @TAB & $hWndFrom & @LF & _
    "-->IDFrom:" & @TAB & $iIDFrom & @LF & _
    "-->Code:" & @TAB & $iCode & @LF & _
    "-->Item:" & @TAB & DllStructGetData($tInfo, "Item") & @LF & _
    "-->SubItem:" & @TAB & DllStructGetData($tInfo, "SubItem") & @LF & _
    "-->NewState:" & @TAB & DllStructGetData($tInfo, "NewState") & @LF & _
    "-->OldState:" & @TAB & DllStructGetData($tInfo, "OldState") & @LF & _
    "-->Changed:" & @TAB & DllStructGetData($tInfo, "Changed") & @LF & _
    "-->ActionX:" & @TAB & DllStructGetData($tInfo, "ActionX") & @LF & _
    "-->ActionY:" & @TAB & DllStructGetData($tInfo, "ActionY") & @LF & _
    "-->Param:" & @TAB & DllStructGetData($tInfo, "Param"))
    ; No return value
    Case $LVN_KEYDOWN ; A key has been pressed
    Local $tInfo = DllStructCreate($tagNMLVKEYDOWN, $ilParam)
    _DebugPrint("$LVN_KEYDOWN" & @LF & "--> hWndFrom:" & @TAB & $hWndFrom & @LF & _
    "-->IDFrom:" & @TAB & $iIDFrom & @LF & _
    "-->Code:" & @TAB & $iCode & @LF & _
    "-->VKey:" & @TAB & DllStructGetData($tInfo, "VKey") & @LF & _
    "-->Flags:" & @TAB & DllStructGetData($tInfo, "Flags"))
    ; No return value
    Case $NM_CLICK ; Sent by a list-view control when the user clicks an item with the left mouse button
    Local $tInfo = DllStructCreate($tagNMITEMACTIVATE, $ilParam)
    _DebugPrint("$NM_CLICK" & @LF & "--> hWndFrom:" & @TAB & $hWndFrom & @LF & _
    "-->IDFrom:" & @TAB & $iIDFrom & @LF & _
    "-->Code:" & @TAB & $iCode & @LF & _
    "-->Index:" & @TAB & DllStructGetData($tInfo, "Index") & @LF & _
    "-->SubItem:" & @TAB & DllStructGetData($tInfo, "SubItem") & @LF & _
    "-->NewState:" & @TAB & DllStructGetData($tInfo, "NewState") & @LF & _
    "-->OldState:" & @TAB & DllStructGetData($tInfo, "OldState") & @LF & _
    "-->Changed:" & @TAB & DllStructGetData($tInfo, "Changed") & @LF & _
    "-->ActionX:" & @TAB & DllStructGetData($tInfo, "ActionX") & @LF & _
    "-->ActionY:" & @TAB & DllStructGetData($tInfo, "ActionY") & @LF & _
    "-->lParam:" & @TAB & DllStructGetData($tInfo, "lParam") & @LF & _
    "-->KeyFlags:" & @TAB & DllStructGetData($tInfo, "KeyFlags"))
    _ListView_Click()
    ; No return value
    Case $NM_DBLCLK ; Sent by a list-view control when the user double-clicks an item with the left mouse button
    Local $tInfo = DllStructCreate($tagNMITEMACTIVATE, $ilParam)
    _DebugPrint("$NM_DBLCLK" & @LF & "--> hWndFrom:" & @TAB & $hWndFrom & @LF & _
    "-->IDFrom:" & @TAB & $iIDFrom & @LF & _
    "-->Code:" & @TAB & $iCode & @LF & _
    "-->Index:" & @TAB & DllStructGetData($tInfo, "Index") & @LF & _
    "-->SubItem:" & @TAB & DllStructGetData($tInfo, "SubItem") & @LF & _
    "-->NewState:" & @TAB & DllStructGetData($tInfo, "NewState") & @LF & _
    "-->OldState:" & @TAB & DllStructGetData($tInfo, "OldState") & @LF & _
    "-->Changed:" & @TAB & DllStructGetData($tInfo, "Changed") & @LF & _
    "-->ActionX:" & @TAB & DllStructGetData($tInfo, "ActionX") & @LF & _
    "-->ActionY:" & @TAB & DllStructGetData($tInfo, "ActionY") & @LF & _
    "-->lParam:" & @TAB & DllStructGetData($tInfo, "lParam") & @LF & _
    "-->KeyFlags:" & @TAB & DllStructGetData($tInfo, "KeyFlags"))
    ; No return value
    Case $NM_KILLFOCUS ; The control has lost the input focus
    _DebugPrint("$NM_KILLFOCUS" & @LF & "--> hWndFrom:" & @TAB & $hWndFrom & @LF & _
    "-->IDFrom:" & @TAB & $iIDFrom & @LF & _
    "-->Code:" & @TAB & $iCode)
    ; No return value
    Case $NM_RCLICK ; Sent by a list-view control when the user clicks an item with the right mouse button
    Local $tInfo = DllStructCreate($tagNMITEMACTIVATE, $ilParam)
    _DebugPrint("$NM_RCLICK" & @LF & "--> hWndFrom:" & @TAB & $hWndFrom & @LF & _
    "-->IDFrom:" & @TAB & $iIDFrom & @LF & _
    "-->Code:" & @TAB & $iCode & @LF & _
    "-->Index:" & @TAB & DllStructGetData($tInfo, "Index") & @LF & _
    "-->SubItem:" & @TAB & DllStructGetData($tInfo, "SubItem") & @LF & _
    "-->NewState:" & @TAB & DllStructGetData($tInfo, "NewState") & @LF & _
    "-->OldState:" & @TAB & DllStructGetData($tInfo, "OldState") & @LF & _
    "-->Changed:" & @TAB & DllStructGetData($tInfo, "Changed") & @LF & _
    "-->ActionX:" & @TAB & DllStructGetData($tInfo, "ActionX") & @LF & _
    "-->ActionY:" & @TAB & DllStructGetData($tInfo, "ActionY") & @LF & _
    "-->lParam:" & @TAB & DllStructGetData($tInfo, "lParam") & @LF & _
    "-->KeyFlags:" & @TAB & DllStructGetData($tInfo, "KeyFlags"))
    ;Return 1 ; not to allow the default processing
    Return 0 ; allow the default processing
    Case $NM_RDBLCLK ; Sent by a list-view control when the user double-clicks an item with the right mouse button
    Local $tInfo = DllStructCreate($tagNMITEMACTIVATE, $ilParam)
    _DebugPrint("$NM_RDBLCLK" & @LF & "--> hWndFrom:" & @TAB & $hWndFrom & @LF & _
    "-->IDFrom:" & @TAB & $iIDFrom & @LF & _
    "-->Code:" & @TAB & $iCode & @LF & _
    "-->Index:" & @TAB & DllStructGetData($tInfo, "Index") & @LF & _
    "-->SubItem:" & @TAB & DllStructGetData($tInfo, "SubItem") & @LF & _
    "-->NewState:" & @TAB & DllStructGetData($tInfo, "NewState") & @LF & _
    "-->OldState:" & @TAB & DllStructGetData($tInfo, "OldState") & @LF & _
    "-->Changed:" & @TAB & DllStructGetData($tInfo, "Changed") & @LF & _
    "-->ActionX:" & @TAB & DllStructGetData($tInfo, "ActionX") & @LF & _
    "-->ActionY:" & @TAB & DllStructGetData($tInfo, "ActionY") & @LF & _
    "-->lParam:" & @TAB & DllStructGetData($tInfo, "lParam") & @LF & _
    "-->KeyFlags:" & @TAB & DllStructGetData($tInfo, "KeyFlags"))
    ; No return value
    Case $NM_RETURN ; The control has the input focus and that the user has pressed the ENTER key
    _DebugPrint("$NM_RETURN" & @LF & "--> hWndFrom:" & @TAB & $hWndFrom & @LF & _
    "-->IDFrom:" & @TAB & $iIDFrom & @LF & _
    "-->Code:" & @TAB & $iCode)
    ; No return value
    Case $NM_SETFOCUS ; The control has received the input focus
    _DebugPrint("$NM_SETFOCUS" & @LF & "--> hWndFrom:" & @TAB & $hWndFrom & @LF & _
    "-->IDFrom:" & @TAB & $iIDFrom & @LF & _
    "-->Code:" & @TAB & $iCode)
    ; No return value
    EndSwitch
    EndSwitch
    Return $GUI_RUNDEFMSG
    EndFunc ;==>WM_NOTIFY

    [/autoit]


    Besonders interessant die Zeile: If Not IsHWnd($hListView) Then $hWndListView = GUICtrlGetHandle($hListView)

    Denn in der Hilfe steht explizit zur Funktion GUICtrlGetHandle():

    Zitat

    Remarks

    ! These controls are not supported: Dummy, Graphic, Object, ListViewItem and TabItem !

    ListViewItems and TabItems are managed through indexes.
    To get the index of these items use DllCall() and DllStructCreate().


    OK, in der Funktion wird ja dann auch mit DllStructCreate() gearbeitet, aber erst nachdem (falls kein Handle existiert) die Funktion GUICtrlGetHandle($hListView) ausgeführt wird.
    Das find ich etwas verwirrend und widersprüchlich. Oder übersehe ich da was?