Figure 13

WM_DDE_INITIATE             Request a conversation.
WM_DDE_INITIATEACK          Send by server to acknowledge
                            the initiate request.
WM_DDE_TERMINATE            Terminates a conversation.
WM_DDE_ACK                  Acknowledges receipt of request
                            other than initiate.
WM_DDE_REQUEST              Request information from
                            server.
WM_DDE_DATA                 Returns data to the client.
WM_DDE_ADVISE               Establish hot link to server.
WM_DDE_UNADVISE             Terminate server hot link.
WM_DDE_POKE                 Request application to accept
                            unsolicited data item.
WM_DDE_EXECUTE              Sends a command string to a
                            server to be executed.

DDE Messages

WinDdeInitiate              Initiate a DDe conversation
WinDdePost                  Post a DDE message to a window.
WinDdeRespond               Sends an acknowledge message.

DDE API Calls