//from http://msdn.microsoft.com/en-US/library/microsoft.visualstudio.ole.interop.ipersiststreaminit.save(v=vs.80).aspx

interface IPersistStreamInit {

Interface IPersistStreamInit

//from http://msdn.microsoft.com/en-US/library/microsoft.visualstudio.ole.interop.ipersiststreaminit.save(v=vs.80).aspx

interface IPersistStreamInit {

Interface IPersistStreamInit

//from http://msdn.microsoft.com/en-US/library/microsoft.visualstudio.ole.interop.ipersiststreaminit.save(v=vs.80).aspx

interface IPersistStreamInit {

Interface IPersistStreamInit

        Guid    IID_IPersistStreamInit = new Guid("7FD52380-4E07-101B-AE2D-08002B2EC713");

        {   // get a pointer to IPersistStreamInit interface

            iResult = Marshal.QueryInterface(pIUnk, ref IID_IPersistStreamInit, out pIPStream); // returns a pointer to a pointer for a specified Interface

            IPersistStreamInit pPersistStream = (IPersistStreamInit)Marshal.GetObjectForIUnknown(pIPStream);

     public bool CheckGUIDS(IPersistStreamInit pPersistStream, string strCtrlGUID)

    private static extern void OleSaveToStream(IPersistStreamInit pPStm, IStream pStm);

       public int ByteSizeOfIPStreamInit(IPersistStreamInit pPersistStream)

    private static extern void OleSaveToStream(IPersistStreamInit pPStm, IStream pStm);

       public int ByteSizeOfIPStreamInit(IPersistStreamInit pPersistStream)