Hello, It sounds like you're passing the client interface reference to the server in the context of a client thread, and are then trying to use that reference directly from the context of another thread (maybe the main application thread) in the server, to call back to the client. IIRC, you can't do that in apartment model threading, and you have to first marshal the reference into the new thread context, (via a stream), something like so (untested):
var FStream: Pointer; // in thread receiving server reference OleCheck(CoMarshalInterThreadInterfaceInStream( IServer, IServerImpl, IStream(FStream))); ... // in thread wanting to call the server reference OleCheck(CoGetInterfaceAndReleaseStream( IStream(FStream), IServer, IServerImpl)); Also have a read of: http://msdn2.microsoft.com/en-us/library/ms693316.aspx and http://msdn2.microsoft.com/en-us/library/ms691421.aspx Hope that helps (haven't worked with this for some time so ... :-/ ) Walter Prins reynaldi81 wrote: > > hi all, > > i currently developing a client server application. i have IServer > interface which will be used by the client to communicate with the > server and ICLient for the server to talk back to the client, both in > the same type library which is shared between client and server > application. the client have no problem communicating with the server. > but when the server try to call methods in client through IClient > interface, i get this strange error "The application called an > interface that was marshalled for a different thread". can anyone help > me on this problem. i use the Apartment Model. > > [Non-text portions of this message have been removed]
