public IntPtr CreateInstance(CLSCTX dwContext, string server)
{
IntPtr pInterface = IntPtr.Zero;
if (dwContext == CLSCTX.ALL)
{
if (DefaultServerType == COMServerType.InProcServer32)
{
dwContext = CLSCTX.INPROC_SERVER;
}
else if (DefaultServerType == COMServerType.LocalServer32)
{
dwContext = CLSCTX.LOCAL_SERVER;
}
else if (DefaultServerType == COMServerType.InProcHandler32)
{
dwContext = CLSCTX.INPROC_HANDLER;
}
else
{
dwContext = CLSCTX.SERVER;
}
}
Guid iid = COMInterfaceEntry.CreateKnownInterface(COMInterfaceEntry.KnownInterfaces.IUnknown).Iid;
Guid clsid = Clsid;
int hr = 0;
if (server != null)
{
MULTI_QI[] qis = new MULTI_QI[1];
qis[0] = new MULTI_QI(iid);
COSERVERINFO server_info = new COSERVERINFO(server);
try
{
hr = COMUtilities.CoCreateInstanceEx(ref clsid, IntPtr.Zero, dwContext, server_info, 1, qis);
if (hr == 0)
{
hr = qis[0].HResult();
if (hr == 0)
{
pInterface = qis[0].GetObjectPointer();
}
}
}
finally
{
((IDisposable)qis[0]).Dispose();
}
}
else
{
hr = COMUtilities.CoCreateInstance(ref clsid, IntPtr.Zero, dwContext, ref iid, out pInterface);
}
if (hr != 0)
{
Marshal.ThrowExceptionForHR(hr);
}
return(pInterface);
}