The DblClick event is fired when user double clicks the control. Use the ItemFromPoint method to determine the cell over the cursor. Use the ColumnFromPoint property to get the column from point. The MouseDown event notifies your application that user clicks the control. 

private void DblClick(object sender,short Shift,int X,int Y)
{
}

Private Sub DblClick(ByVal sender As System.Object,ByVal Shift As Short,ByVal X As Integer,ByVal Y As Integer) Handles DblClick
End Sub

private void DblClick(object sender, AxEXLISTLib._IListEvents_DblClickEvent e)
{
}

void OnDblClick(short Shift,long X,long Y)
{
}

void __fastcall DblClick(TObject *Sender,short Shift,int X,int Y)
{
}

procedure DblClick(ASender: TObject; Shift : Smallint;X : Integer;Y : Integer);
begin
end;

procedure DblClick(sender: System.Object; e: AxEXLISTLib._IListEvents_DblClickEvent);
begin
end;

begin event DblClick(integer Shift,long X,long Y)
end event DblClick

Private Sub DblClick(ByVal sender As System.Object, ByVal e As AxEXLISTLib._IListEvents_DblClickEvent) Handles DblClick
End Sub

Private Sub DblClick(Shift As Integer,X As Single,Y As Single)
End Sub

Private Sub DblClick(ByVal Shift As Integer,ByVal X As Long,ByVal Y As Long)
End Sub

LPARAMETERS Shift,X,Y

PROCEDURE OnDblClick(oList,Shift,X,Y)
RETURN

<SCRIPT EVENT="DblClick(Shift,X,Y)" LANGUAGE="JScript">
</SCRIPT>

<SCRIPT LANGUAGE="VBScript">
Function DblClick(Shift,X,Y)
End Function
</SCRIPT>

Procedure OnComDblClick Short llShift OLE_XPOS_PIXELS llX OLE_YPOS_PIXELS llY
	Forward Send OnComDblClick llShift llX llY
End_Procedure

METHOD OCX_DblClick(Shift,X,Y) CLASS MainDialog
RETURN NIL

void onEvent_DblClick(int _Shift,int _X,int _Y)
{
}

function DblClick as v (Shift as N,X as OLE::Exontrol.List.1::OLE_XPOS_PIXELS,Y as OLE::Exontrol.List.1::OLE_YPOS_PIXELS)
end function

function nativeObject_DblClick(Shift,X,Y)
return

The following VB sample displays the caption of the cell being double clicked:

Private Sub List1_DblClick(Shift As Integer, X As Single, Y As Single)
    Dim c As Long, i As Long, hit As HitTestInfoEnum
    With List1
        i = .ItemFromPoint(X / Screen.TwipsPerPixelX, Y / Screen.TwipsPerPixelY, c, hit)
        If (i >= 0) Then
            If (c >= 0) Then
                Debug.Print "DblClk on " & .Items.Caption(i, c)
            End If
        End If
    End With
End Sub

The following C++ sample displays the caption of the cell being double clicked:

void OnDblClickList1(short Shift, long X, long Y) 
{
	long c = 0, hit = 0, i = m_list.GetItemFromPoint( X, Y, &c, &hit );
	if ( i >= 0 )
	{
		CItems items = m_list.GetItems();
		CString strCaption = V2S( &items.GetCaption( i, COleVariant( c ) ) );
		OutputDebugString( strCaption );
	}
}

The following VB.NET sample displays the caption of the cell being double clicked:

Private Sub AxList1_DblClick(ByVal sender As Object, ByVal e As AxEXLISTLib._IListEvents_DblClickEvent) Handles AxList1.DblClick
    Dim c As Integer, hit As EXLISTLib.HitTestInfoEnum
    Dim i As Integer = AxList1.get_ItemFromPoint(e.x, e.y, c, hit)
    If (i >= 0) Then
        With AxList1.Items
            Debug.Write(.Caption(i, c))
        End With
    End If
End Sub

The following C# sample displays the caption of the cell being double clicked:

private void axList1_DblClick(object sender, AxEXLISTLib._IListEvents_DblClickEvent e)
{
	EXLISTLib.HitTestInfoEnum hit;
	int c = 0, i = axList1.get_ItemFromPoint(e.x, e.y, out c, out hit );
	if (i >= 0)
	{
		System.Diagnostics.Debug.WriteLine(axList1.Items.get_Caption(i, c).ToString());
	}
}

The following VFP sample displays the caption of the cell being double clicked:

*** ActiveX Control Event ***
LPARAMETERS shift, x, y

local c, i, hit
With thisform.List1
	c = 0
	hit = 0
	i = .ItemFromPoint(x, y, @c, @hit)
    If (i >= 0)
 		wait window nowait .Items.Caption(i, c)
    EndIf
EndWith