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A wxTCPClient object represents the client part of a client-server conversation. It emulates a DDE-style protocol, but uses TCP/IP which is available on most platforms.

A DDE-based implementation for Windows is available using wxDDEClient.

To create a client which can communicate with a suitable server, you need to derive a class from wxTCPConnection and another from wxTCPClient. The custom wxTCPConnection class will intercept communications in a 'conversation' with a server, and the custom wxTCPServer is required so that a user-overridden wxTCPClient::OnMakeConnection member can return a wxTCPConnection of the required class, when a connection is made.

Derived from


Include files


See also

wxTCPServer, wxTCPConnection, Interprocess communications overview





Constructs a client object.


wxConnectionBase * MakeConnection(const wxString& host, const wxString& service, const wxString& topic)

Tries to make a connection with a server specified by the host (a machine name under Unix), service name (must contain an integer port number under Unix), and a topic string. If the server allows a connection, a wxTCPConnection object will be returned. The type of wxTCPConnection returned can be altered by overriding the wxTCPClient::OnMakeConnection member to return your own derived connection object.


wxConnectionBase * OnMakeConnection()

The type of wxTCPConnection returned from a wxTCPClient::MakeConnection call can be altered by deriving the OnMakeConnection member to return your own derived connection object. By default, a wxTCPConnection object is returned.

The advantage of deriving your own connection class is that it will enable you to intercept messages initiated by the server, such as wxTCPConnection::OnAdvise. You may also want to store application-specific data in instances of the new class.


bool ValidHost(const wxString& host)

Returns true if this is a valid host name, false otherwise.