Hi,

I have created a .net control and I have made it com visible and I am
consuming it from within Visual Objects code. But i get the following
error when calling the CreateDisplay() method:

COM object that has been seperated from it's underlying RCW cannot be
used.

It seems to happen when i try to change some viewable element of the
control. In this case I am trying to change the background colour.
Anyone have any ideas to try?
---

Here is my class:

    [ComVisible(true)]
    [Guid("4afe0275-1eb1-4d1c-b4b1-c0c795d76d1f")]
    [ProgId("Thing.Photo.CurrentPhotoDisplay.5")]
    [ComDefaultInterface(typeof(ICurrentPhotoDisplay))]
    [ClassInterface(ClassInterfaceType.None)]
    [ComSourceInterfaces(typeof(ICurrentPhotoDisplay))]
    public class CurrentPhotoDisplay : Control,ICurrentPhotoDisplay
    {
        private PhotoDisplay CurrentPhoto;

        public CurrentPhotoDisplay()
        {
            InitializeComponent();
        }

        private void InitializeComponent()
        {
           ...............
        }

        public void CreateDisplay(int ID)
        {
            MessageBox.Show(ID.ToString());
            BackColor = Color.Black; ///ERROR HAPPENS HERE
        }

        [ComRegisterFunction]
        public static void RegisterClass(string key)
        {
            .........
        }

        [ComUnregisterFunction]
        public static void UnregisterClass(string key)
        {
           ............
        }

    }