Besserer ListView Check

**UEZ**

Wie kann ich akkurater die Spalte eines ListViews auslesen, als $LVN_ITEMCHANGED zu benutzen, da $LVN_ITEMCHANGED mehrmals aufgerufen wird?

Hier das Beispiel aus der Hilfe:

Spoiler anzeigen

[autoit]

#include <GuiConstantsEx.au3>
#include <GuiListView.au3>
#include <GuiImageList.au3>
#include <WindowsConstants.au3>

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Opt('MustDeclareVars', 1)

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$Debug_LV = False ; Check ClassName being passed to ListView functions, set to True and use a handle to another control to see it work

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Global $hListView

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_Main()

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Func _Main()

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Local $GUI, $hImage
$GUI = GUICreate("(UDF Created) ListView Create", 200, 300)

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$hListView = _GUICtrlListView_Create($GUI, "", 2, 2, 394, 268)
_GUICtrlListView_SetExtendedListViewStyle($hListView, BitOR($LVS_EX_GRIDLINES, $LVS_EX_FULLROWSELECT, $LVS_EX_SUBITEMIMAGES))
GUISetState()

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GUIRegisterMsg($WM_NOTIFY, "WM_NOTIFY")

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; Load images
$hImage = _GUIImageList_Create()
_GUIImageList_Add($hImage, _GUICtrlListView_CreateSolidBitMap($hListView, 0xFF0000, 16, 16))
_GUIImageList_Add($hImage, _GUICtrlListView_CreateSolidBitMap($hListView, 0x00FF00, 16, 16))
_GUIImageList_Add($hImage, _GUICtrlListView_CreateSolidBitMap($hListView, 0x0000FF, 16, 16))
_GUICtrlListView_SetImageList($hListView, $hImage, 1)

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; Add columns
_GUICtrlListView_InsertColumn($hListView, 0, "Column 1", 100)

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; Add items
_GUICtrlListView_AddItem($hListView, "Row 1: Col 1", 0)
_GUICtrlListView_AddItem($hListView, "Row 2: Col 1", 1)
_GUICtrlListView_AddItem($hListView, "Row 3: Col 1", 2)

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

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

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$tNMHDR = DllStructCreate($tagNMHDR, $ilParam)
$hWndFrom = HWnd(DllStructGetData($tNMHDR, "hWndFrom"))
$iIDFrom = DllStructGetData($tNMHDR, "IDFrom")
$iCode = DllStructGetData($tNMHDR, "Code")
Switch $hWndFrom
Case $hWndListView
Switch $iCode
Case $LVN_KEYDOWN ; A key has been pressed
ConsoleWrite("$LVN_KEYDOWN" & @CRLF)
; No return value
Case $NM_CLICK ; Sent by a list-view control when the user clicks an item with the left mouse button
ConsoleWrite("$NM_CLICK" & @CRLF)
Case $LVN_ITEMCHANGED ; An item has changed
ConsoleWrite("$LVN_ITEMCHANGED" & @CRLF)
; No return value
EndSwitch
EndSwitch
Return $GUI_RUNDEFMSG
EndFunc ;==>WM_NOTIFY

[/autoit]

Wenn eine Zelle markiere und mit den Cursor Tasten die Auswahl bewege, dann wird $LVN_ITEMCHANGED leider mehrmals aufgerufen!
Ich will prüfen, welche Zelle gerade aufgerufen wurde. Mit $LVN_KEYDOWN geht es auch, aber ich bekomme nicht die Zelle und deren Inhalt raus!

Gruß,
UEZ

**Oscar**

Damit schlage ich mich auch gerade rum.
Eine Lösung per WM_NOTIFY habe ich auch nicht parat, nur eine Alternative:

Spoiler anzeigen

[autoit]

#include <GuiConstantsEx.au3>
#include <GuiListView.au3>
#include <GuiImageList.au3>
#include <WindowsConstants.au3>

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

Opt('MustDeclareVars', 1)

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$Debug_LV = False ; Check ClassName being passed to ListView functions, set to True and use a handle to another control to see it work

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

Global $hListView, $hDummy

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_Main()

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Func _Main()

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Local $GUI, $hImage, $iItem
$GUI = GUICreate("(UDF Created) ListView Create", 200, 300)

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$hDummy = GUICtrlCreateDummy()

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$hListView = _GUICtrlListView_Create($GUI, "", 2, 2, 394, 268)
_GUICtrlListView_SetExtendedListViewStyle($hListView, BitOR($LVS_EX_GRIDLINES, $LVS_EX_FULLROWSELECT, $LVS_EX_SUBITEMIMAGES))
GUISetState()

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

GUIRegisterMsg($WM_NOTIFY, "WM_NOTIFY")

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

; Load images
$hImage = _GUIImageList_Create()
_GUIImageList_Add($hImage, _GUICtrlListView_CreateSolidBitMap($hListView, 0xFF0000, 16, 16))
_GUIImageList_Add($hImage, _GUICtrlListView_CreateSolidBitMap($hListView, 0x00FF00, 16, 16))
_GUIImageList_Add($hImage, _GUICtrlListView_CreateSolidBitMap($hListView, 0x0000FF, 16, 16))
_GUICtrlListView_SetImageList($hListView, $hImage, 1)

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; Add columns
_GUICtrlListView_InsertColumn($hListView, 0, "Column 1", 100)

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; Add items
_GUICtrlListView_AddItem($hListView, "Row 1: Col 1", 0)
_GUICtrlListView_AddItem($hListView, "Row 2: Col 1", 1)
_GUICtrlListView_AddItem($hListView, "Row 3: Col 1", 2)

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; Loop until user exits
While True
Switch GUIGetMsg()
Case $GUI_EVENT_CLOSE
GUIDelete()
Return
Case $hDummy
$iItem = ControlListView($GUI, '', $hListView, 'GetSelected')
ConsoleWrite('Item: ' & $iItem & @CR)
EndSwitch
WEnd
EndFunc ;==>_Main

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

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$tNMHDR = DllStructCreate($tagNMHDR, $ilParam)
$hWndFrom = HWnd(DllStructGetData($tNMHDR, "hWndFrom"))
$iIDFrom = DllStructGetData($tNMHDR, "IDFrom")
$iCode = DllStructGetData($tNMHDR, "Code")
Switch $hWndFrom
Case $hWndListView
Switch $iCode
Case $LVN_KEYDOWN ; A key has been pressed
ConsoleWrite("$LVN_KEYDOWN" & @CRLF)
GUICtrlSendToDummy($hDummy)
; No return value
Case $NM_CLICK ; Sent by a list-view control when the user clicks an item with the left mouse button
ConsoleWrite("$NM_CLICK" & @CRLF)
EndSwitch
EndSwitch
Return $GUI_RUNDEFMSG
EndFunc ;==>WM_NOTIFY

[/autoit]

TheShadowAE

ich hoffe dir helfen die beiden Funktionen (zumindest zum Auslesen) ein bisschen weiter:

[autoit]

_GUICtrlListView_GetSelectedIndices
_GUICtrlListView_GetItemText

[/autoit]

PS: ich bin mir nicht sicher ob ich es richtig verstanden habe

**Oscar**

Das hilft hier nicht weiter, weil in der WM_NOTIFY-Funktion die Listview-Einträge noch gar nicht selektiert sind bzw. noch nicht die Richtigen. WM_NOTIFY wird aufgerufen, bevor die Änderungen vorgenommen werden, deswegen würden die von Dir genannten Funktionen falsche Ergebnisse liefern.

**Raupi**

Probier mal das :

Spoiler anzeigen

[autoit]

#include <GuiConstantsEx.au3>
#include <GuiListView.au3>
#include <GuiImageList.au3>
#include <WindowsConstants.au3>

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

Opt('MustDeclareVars', 1)

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

$Debug_LV = False ; Check ClassName being passed to ListView functions, set to True and use a handle to another control to see it work

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

Global $hListView

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

_Main()

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

Func _Main()

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

Local $GUI, $hImage
$GUI = GUICreate("(UDF Created) ListView Create", 200, 300)

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

$hListView = _GUICtrlListView_Create($GUI, "", 2, 2, 394, 268)
_GUICtrlListView_SetExtendedListViewStyle($hListView, BitOR($LVS_EX_GRIDLINES, $LVS_EX_FULLROWSELECT, $LVS_EX_SUBITEMIMAGES))
GUISetState()

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

GUIRegisterMsg($WM_NOTIFY, "WM_NOTIFY")

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

; Load images
$hImage = _GUIImageList_Create()
_GUIImageList_Add($hImage, _GUICtrlListView_CreateSolidBitMap($hListView, 0xFF0000, 16, 16))
_GUIImageList_Add($hImage, _GUICtrlListView_CreateSolidBitMap($hListView, 0x00FF00, 16, 16))
_GUIImageList_Add($hImage, _GUICtrlListView_CreateSolidBitMap($hListView, 0x0000FF, 16, 16))
_GUICtrlListView_SetImageList($hListView, $hImage, 1)

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

; Add columns
_GUICtrlListView_InsertColumn($hListView, 0, "Column 1", 100)

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

; Add items
_GUICtrlListView_AddItem($hListView, "Row 1: Col 1", 0)
_GUICtrlListView_AddItem($hListView, "Row 2: Col 1", 1)
_GUICtrlListView_AddItem($hListView, "Row 3: Col 1", 2)

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

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

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

Func WM_NOTIFY($hWnd, $iMsg, $iwParam, $ilParam)
#forceref $hWnd, $iMsg, $iwParam
Local $hWndFrom, $iIDFrom, $iCode, $tNMHDR, $hWndListView, $tInfo
$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 -12
Local $iSel= ControlListView("(UDF Created) ListView Create", "", $hWndListView, "GetSelected", 1)
Local $sCurSel = _GUICtrlListView_GetItemText($hWndListView,$iSel)
ConsoleWrite("Index :"&$iSel& @CRLF)
ConsoleWrite("Inhalt :"&$sCurSel & @CRLF)
Case $NM_CLICK ; Sent by a list-view control when the user clicks an item with the left mouse button
ConsoleWrite("$NM_CLICK" & @CRLF)
Case $NM_KILLFOCUS ; An item has changed
ConsoleWrite("$LVN_ITEMCHANGED" & @CRLF)
; No return value
EndSwitch
EndSwitch
Return $GUI_RUNDEFMSG

[/autoit]

Edit: Keine gute Lösung $NM_Customdraw abzufangen.

**UEZ**

Hab' ein Workaround gefunden, indem ich ein bissl bei Oscar in seinem FileCommander abgeschaut habe (vielen Dank OSCAR!)!

Hier der Auszug:

[autoit]

Case $LVN_KEYDOWN
$tInfo = DllStructCreate($tagNMLVKEYDOWN, $lParam)
Switch DllStructGetData($tInfo, 'VKey')
Case 38
$index = _GUICtrlListView_GetSelectionMark($List) - 1
If $index > -1 Then Make_Screenshot(_GUICtrlListView_GetItemText($List, $index, 1), $aWnd[$index][2], $aWnd[$index][3])
Case 40
$index = _GUICtrlListView_GetSelectionMark($List) + 1
If $index < _GUICtrlListView_GetItemCount($hListView) Then Make_Screenshot(_GUICtrlListView_GetItemText($List, $index, 1), $aWnd[$index][2], $aWnd[$index][3])
EndSwitch
EndSwitch

[/autoit]

Und zwar ist der Code für meinen AutoIt Windows Screenshooter!

Vielen Dank für eurer Feedback!

Gruß,
UEZ

**Oscar**

Ja, im FileCommander habe ich diesen Workaround eingebaut. Wobei ich damit auch nicht wirklich zufrieden bin.
Ich glaube, mir gefällt die Lösung mit dem Dummy-Control (Post#2) besser.

KaFu

Listviews sind sehr großzügig was Notifications angeht :)...

[autoit]

#include <GuiConstantsEx.au3>
#include <GuiListView.au3>
#include <GuiImageList.au3>
#include <WindowsConstants.au3>

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

Opt('MustDeclareVars', 1)

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

$Debug_LV = False ; Check ClassName being passed to ListView functions, set to True and use a handle to another control to see it work

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

Global $hListView

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

_Main()

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

Func _Main()

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

Local $GUI, $hImage
$GUI = GUICreate("(UDF Created) ListView Create", 200, 300)

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

$hListView = _GUICtrlListView_Create($GUI, "", 2, 2, 394, 268)
_GUICtrlListView_SetExtendedListViewStyle($hListView, BitOR($LVS_EX_GRIDLINES, $LVS_EX_FULLROWSELECT, $LVS_EX_SUBITEMIMAGES))
GUISetState()

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

GUIRegisterMsg($WM_NOTIFY, "WM_NOTIFY")

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

; Load images
$hImage = _GUIImageList_Create()
_GUIImageList_Add($hImage, _GUICtrlListView_CreateSolidBitMap($hListView, 0xFF0000, 16, 16))
_GUIImageList_Add($hImage, _GUICtrlListView_CreateSolidBitMap($hListView, 0x00FF00, 16, 16))
_GUIImageList_Add($hImage, _GUICtrlListView_CreateSolidBitMap($hListView, 0x0000FF, 16, 16))
_GUICtrlListView_SetImageList($hListView, $hImage, 1)

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

; Add columns
_GUICtrlListView_InsertColumn($hListView, 0, "Column 1", 100)

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

; Add items
_GUICtrlListView_AddItem($hListView, "Row 1: Col 1", 0)
_GUICtrlListView_AddItem($hListView, "Row 2: Col 1", 1)
_GUICtrlListView_AddItem($hListView, "Row 3: Col 1", 2)

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

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

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

Func WM_NOTIFY($hWnd, $iMsg, $iwParam, $ilParam)
#forceref $hWnd, $iMsg, $iwParam
Local $hWndFrom, $iIDFrom, $iCode, $tNMHDR, $hWndListView, $tInfo
$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")

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

Local $tInfo = DllStructCreate($tagNMLISTVIEW, $ilParam)
Local $iItem = DllStructGetData($tInfo, "Item")
Local $iSubItem = DllStructGetData($tInfo, "SubItem")
Local $iNewState = DllStructGetData($tInfo, "NewState")
Local $iOldState = DllStructGetData($tInfo, "OldState")
Local $iChanged = DllStructGetData($tInfo, "Changed")
Local $iActionX = DllStructGetData($tInfo, "ActionX")
Local $iActionY = DllStructGetData($tInfo, "ActionY")
Local $iParam = DllStructGetData($tInfo, "Param")

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

Switch $hWndFrom
Case $hWndListView
Switch $iCode
Case $LVN_ITEMACTIVATE ; Doubleclick
; $tagNMITEMACTIVATE
ConsoleWrite("$LVN_ITEMACTIVATE" & @CRLF)
$tINFO = DllStructCreate($tagNMITEMACTIVATE, $ilParam)

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

Case $LVN_KEYDOWN ; A key has been pressed
ConsoleWrite("$LVN_KEYDOWN" & @CRLF)
; No return value
Case $NM_CLICK ; Sent by a list-view control when the user clicks an item with the left mouse button
ConsoleWrite("$NM_CLICK" & @CRLF)

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

Case $LVN_ITEMCHANGED ; An item has changed
ConsoleWrite("LVN_ITEMCHANGED" & @tab & "Item: " & $iItem & @tab & "SubItem: " & $iSubItem & @tab & "NewState: " & $iNewState & @tab & "OldState: " & $iOldState & @tab & "Changed: " & $iChanged & @tab & "ActionX: " & $iActionX & @tab & "ActionY: " & $iActionY & @tab & "Param: " & $iParam & @crlf)

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

Case $LVN_HOTTRACK
ConsoleWrite("LVN_HOTTRACK" & @tab & "Item: " & $iItem & @tab & "SubItem: " & $iSubItem & @tab & "NewState: " & $iNewState & @tab & "OldState: " & $iOldState & @tab & "Changed: " & $iChanged & @tab & "ActionX: " & $iActionX & @tab & "ActionY: " & $iActionY & @tab & "Param: " & $iParam & @crlf)

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

; No return value
EndSwitch
EndSwitch
Return $GUI_RUNDEFMSG
EndFunc ;==>WM_NOTIFY

[/autoit]

**Raupi**

Die Dummylösung ist genial
Vor lauter Notify geschnüffel kommt man nicht auf das einfachste.

KaFu $LVN_ITEMCHANGED war keine Option, die Notify wird zu oft ausgelöst.

**UEZ**

Hi KaFu,

nett, dass du dein Wissen auch hier teilst!

Weiter so

Gruß,
UEZ

**UEZ**

Zitat von Oscar

Ja, im FileCommander habe ich diesen Workaround eingebaut. Wobei ich damit auch nicht wirklich zufrieden bin.
Ich glaube, mir gefällt die Lösung mit dem Dummy-Control (Post#2) besser.

Die ist echt clever, nur für mein Code nicht von Nutzen. Siehst du, wenn du mal in den Code reinschaust!

Edit: obwohl, könnte man auch so implementieren!

Gruß,
UEZ

KaFu

Zitat von Raupi

KaFu $LVN_ITEMCHANGED war keine Option, die Notify wird zu oft ausgelöst.

Per $LVN_HOTTRACK das Item in eine globale Variable schreiben und diese dann im $LVN_KEYDOWN Event verwenden ;)?

Zitat von UEZ

Hi KaFu, nett, dass du dein Wissen auch hier teilst!

Deine und eukalyptus Postings im internationalen Forum haben mich her gelockt ...

**Raupi**

Zitat

Per $LVN_HOTTRACK das Item in eine globale Variable schreiben und diese dann im $LVN_KEYDOWN Event verwenden ;)?

Ok, ich nehm alles zurück und behaupte das Gegenteil