Problem with GUICtrlCreateContextMenu on the move

[Achilles]

I have a list that six different types of icons. Depending on the icon, I want to show a different context menu. So, I decided the easiest way to do this would be to delete the menu each time and start from scratch after every right click. It doesn't work. Any ideas why the menu doesn't show?

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

Global $testMenu

$GUI = GUICreate("Menu problem", 400, 300)

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

GUIRegisterMsg($WM_NOTIFY, "WM_NOTIFY")

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

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

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


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

    $tNMHDR = DllStructCreate($tagNMHDR, $ilParam)
    $hWndFrom = HWnd(DllStructGetData($tNMHDR, "hWndFrom"))
    $iIDFrom = DllStructGetData($tNMHDR, "IDFrom")
    $iCode = DllStructGetData($tNMHDR, "Code")
    Switch $hWndFrom
        Case $hListView
            Switch $iCode
                Case $NM_RCLICK; Sent by a list-view control when the user clicks an item with the right mouse button
                    $tInfo = DllStructCreate($tagNMITEMACTIVATE, $ilParam)
                    $iItem = DllStructGetData($tInfo, 'Item')
                    
                    GUICtrlDelete($testMenu)
                    $testMenu = GUICtrlCreateContextMenu($hListView)
                    GUICtrlCreateMenuItem('Testing', $testMenu)
                    
                   ;Return 1; not to allow the default processing
                    Return 0; allow the default processing

            EndSwitch
    EndSwitch
    Return $GUI_RUNDEFMSG
EndFunc  ;==>WM_NOTIFY

[rasim]

@Ichigo

You can't create the context menu using the GUICtrlCreateContextMenu for the control created with UDF functions, e.g. _GUICtrlListView_Create

Example:

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

Global $testMenu

$GUI = GUICreate("Menu problem", 400, 300)

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

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

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

$cDummy = GUICtrlCreateDummy()

$testMenu = GUICtrlCreateContextMenu($cDummy)
$MenuItem = GUICtrlCreateMenuItem('Testing', $testMenu)

$hMenu = GUICtrlGetHandle($testMenu)

GUIRegisterMsg($WM_NOTIFY, "WM_NOTIFY")

GUISetState()

; Loop until user exits
While 1
    $msg = GUIGetMsg()
    Switch $msg
        Case $GUI_EVENT_CLOSE
            Exit
        Case $cDummy
            _TrackPopupMenu($hMenu, 0, MouseGetPos(0), MouseGetPos(1), $GUI)
    EndSwitch
WEnd

GUIDelete()

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

    $tNMHDR = DllStructCreate($tagNMHDR, $ilParam)
    $hWndFrom = HWnd(DllStructGetData($tNMHDR, "hWndFrom"))
    $iIDFrom = DllStructGetData($tNMHDR, "IDFrom")
    $iCode = DllStructGetData($tNMHDR, "Code")
    
    Switch $hWndFrom
        Case $hListView
            Switch $iCode
                Case $NM_RCLICK ; Sent by a list-view control when the user clicks an item with the right mouse button
                    $tInfo = DllStructCreate($tagNMLISTVIEW, $ilParam)
                    $iItem = DllStructGetData($tInfo, 'Item')
                    
                    If $iItem <> -1 Then
                        _GUICtrlMenu_SetItemText($hMenu, $MenuItem, _GUICtrlListView_GetItemText($hListView, $iItem), False)
                        GUICtrlSendToDummy($cDummy)
                    EndIf

                    ;Return 1; not to allow the default processing
                    Return 0; allow the default processing

            EndSwitch
    EndSwitch
    
    Return $GUI_RUNDEFMSG
EndFunc   ;==>WM_NOTIFY

Func _TrackPopupMenu($hMenu, $iFlags, $iX, $iY, $hWnd)
    Local $aRet = DllCall("User32.dll", "int", "TrackPopupMenu", _
                                                "hwnd", $hMenu, _
                                                "int", $iFlags, _
                                                "int", $iX, _
                                                "int", $iY, _
                                                "int", 0, _
                                                "hwnd", $hWnd, _
                                                "hwnd", 0)
EndFunc

[rasim]

Another way:

expandcollapse popup

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

$GUI = GUICreate("Menu problem", 400, 300)

$hListView = GUICtrlCreateListView("Items|SubItems", 2, 2, 394, 268)

For $i = 1 To 10
    GUICtrlCreateListViewItem("Item " & $i & "|SubItem " & $i, $hListView)
Next

$testMenu = GUICtrlCreateContextMenu($hListView)
$MenuItem = GUICtrlCreateMenuItem('Testing', $testMenu)

$hMenu = GUICtrlGetHandle($testMenu)

GUIRegisterMsg($WM_INITMENUPOPUP, "WM_INITMENUPOPUP")

GUISetState()

; Loop until user exits
While 1
    $msg = GUIGetMsg()
    Switch $msg
        Case $GUI_EVENT_CLOSE
            Exit
    EndSwitch
WEnd

Func WM_INITMENUPOPUP($hWnd, $Msg, $wParam, $lParam)
    Local $sText = GUICtrlRead(GUICtrlRead($hListView))
    
    If $sText = "0" Then
        GUICtrlSetData($MenuItem, "Test")
        GUICtrlSetState($MenuItem, $GUI_DISABLE)
    Else
        GUICtrlSetData($MenuItem, $sText)
        GUICtrlSetState($MenuItem, $GUI_ENABLE)
    EndIf
    
    Return $GUI_RUNDEFMSG
EndFunc

[Achilles]

I don't have time to try your second example with what I'm doing but it looks like it should work fine. Thanks for that solution!