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	1	\section{\class{wxDDEClient}}\label{wxddeclient}
	2
	3	A wxDDEClient object represents the client part of a client-server DDE
	4	(Dynamic Data Exchange) conversation.
	5
	6	To create a client which can communicate with a suitable server,
	7	you need to derive a class from wxDDEConnection and another from wxDDEClient.
	8	The custom wxDDEConnection class will intercept communications in
	9	a `conversation' with a server, and the custom wxDDEServer is required
	10	so that a user-overriden \helpref{wxDDEClient::OnMakeConnection}{wxddeclientonmakeconnection} member can return
	11	a wxDDEConnection of the required class, when a connection is made.
	12
	13	This DDE-based implementation is
	14	available on Windows only, but a platform-independent, socket-based version
	15	of this API is available using \helpref{wxTCPClient}{wxtcpclient}.
	16
	17	\wxheading{Derived from}
	18
	19	wxClientBase\\
	20	\helpref{wxObject}{wxobject}
	21
	22	\wxheading{See also}
	23
	24	\helpref{wxDDEServer}{wxddeserver}, \helpref{wxDDEConnection}{wxddeconnection},
	25	\helpref{Interprocess communications overview}{ipcoverview}
	26
	27	\latexignore{\rtfignore{\wxheading{Members}}}
	28
	29	\membersection{wxDDEClient::wxDDEClient}
	30
	31	\func{}{wxDDEClient}{\void}
	32
	33	Constructs a client object.
	34
	35	\membersection{wxDDEClient::MakeConnection}\label{wxddeclientmakeconnection}
	36
	37	\func{wxConnectionBase *}{MakeConnection}{\param{const wxString\& }{host}, \param{const wxString\& }{service}, \param{const wxString\& }{topic}}
	38
	39	Tries to make a connection with a server specified by the host
	40	(machine name under UNIX, ignored under Windows), service name (must
	41	contain an integer port number under UNIX), and topic string. If the
	42	server allows a connection, a wxDDEConnection object will be returned.
	43	The type of wxDDEConnection returned can be altered by overriding
	44	the \helpref{wxDDEClient::OnMakeConnection}{wxddeclientonmakeconnection} member to return your own
	45	derived connection object.
	46
	47	\membersection{wxDDEClient::OnMakeConnection}\label{wxddeclientonmakeconnection}
	48
	49	\func{wxConnectionBase *}{OnMakeConnection}{\void}
	50
	51	The type of \helpref{wxDDEConnection}{wxddeconnection} returned from a \helpref{wxDDEClient::MakeConnection}{wxddeclientmakeconnection} call can
	52	be altered by deriving the {\bf OnMakeConnection} member to return your
	53	own derived connection object. By default, a wxDDEConnection
	54	object is returned.
	55
	56	The advantage of deriving your own connection class is that it will
	57	enable you to intercept messages initiated by the server, such
	58	as \helpref{wxDDEConnection::OnAdvise}{wxddeconnectiononadvise}. You may also want to
	59	store application-specific data in instances of the new class.
	60
	61	\membersection{wxDDEClient::ValidHost}
	62
	63	\func{bool}{ValidHost}{\param{const wxString\& }{host}}
	64
	65	Returns TRUE if this is a valid host name, FALSE otherwise. This always
	66	returns TRUE under MS Windows.
	67
	68