hwndClient (HWND) - input

Client's window handle.

hwndServer (HWND) - input

Server's window handle.

If a server application is responding for more than one topic, it must use a different window for each topic.

pszAppName (PSZ) - input

Application name.

This is the name of the responding server application. It must not be a zero-length string or null.

Application names may not contain slashes or backslashes.

pszTopicName (PSZ) - input

Topic name.

This is the name of the topic which the server is willing to support. It must not be a zero-length string or null.

pContext (PCONVCONTEXT) - input

Conversation context.

mresReply (MRESULT) - returns

Message return data.