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Reply to: Interacting with running XMAX

I've got  E_NOINTERFACE error.
Here is a fragment of VB .NET code of the container app:

    Public Shared Function RegisterActiveObject( ByVal punk As Object, ByRef rclsid As Guid, ByVal dwFlags As Integer, ByRef pdwRegister As Integer) As Integer
    End Function
    Public Shared Function RevokeActiveObject(ByVal pdwRegister As Integer, ByVal pvReserved As Integer) As Integer
    End Function

Public Function Register_OLE32(ByVal itemname As String, ByRef obj As Object) As Integer
        Dim enc As New UnicodeEncoding
        Dim errorcode As Integer
        Dim guid As New Guid
        Dim registered As Integer
        Dim item As Byte() = enc.GetBytes(itemname)

        errorcode = CLSIDFromString(item, guid)
        errorcode = RegisterActiveObject(obj, guid, 1, registered)
        Return registered
    End Function

    Public Sub Unregister_OLE32(ByVal id As Integer)
        RevokeActiveObject(id, 0)
    End Sub

        Public Shared Function CLSIDFromString(ByVal lpszCLSID As Byte(), ByRef pclsid As Guid) As Integer
    End Function
Private xmaxROTid As Integer

Private Sub XMActiveX_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Me.FindReplaceDlg = New FindReplaceForm()
        Me.FindReplaceDlg.SetXMetaLActiveX(Me.AxXMetaLControl) ' FindReplaceDlg needs to know which XMetaL Control to Find and Replace, etc

        Me.ValidationErrorDlg = New ValidationForm()
        xmaxROTid = Register_OLE32(“XMetaL.Control”, Me.AxXMetaLControl)   
    End Sub

Private Sub XMActiveX_FormClosed(ByVal sender As System.Object, ByVal e As System.Windows.Forms.FormClosedEventArgs) Handles MyBase.FormClosed
    End Sub
I am not trying to get the IXMetaLControl instance within macros. I create my plugin instance via CreateObject call in the On_Macro_File_Load handler. In the FinalConstruct method (C++ project) of the plugin I try to get  the IXMetaLControl instance.