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80 lines
4.0 KiB
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<TITLE>EXPORT_SPEC int UpnpSubscribeAsync</TITLE>
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<H2>EXPORT_SPEC int <A HREF="#DOC.DOCU">UpnpSubscribeAsync</A></H2><H2>( IN <!1><A HREF="UpnpClient_Handle.html">UpnpClient_Handle</A> Hnd,<BR> IN const char* <!1><A HREF="Upnp_Event_Subscribe.html#DOC.1.4.2.12.3">PublisherUrl</A>,<BR> IN int <!1><A HREF="Upnp_Event_Subscribe.html#DOC.1.4.2.12.4">TimeOut</A>,<BR> IN Upnp_FunPtr Fun,<BR> IN const void* Cookie )</H2><BLOCKQUOTE><B>UpnpSubscribeAsync</B> performs the same operation as <B>UpnpSubscribe</B>, but returns immediately and calls the registered callback function when the operation is complete.</BLOCKQUOTE>
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<A NAME="DOC.DOCU"></A>
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<HR>
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<H2>Documentation</H2>
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<BLOCKQUOTE><B>UpnpSubscribeAsync</B> performs the same operation as
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<B>UpnpSubscribe</B>, but returns immediately and calls the registered
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callback function when the operation is complete.
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<P>Note that many of the error codes for this function are returned in
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the <B>Upnp_Event_Subscribe</B> structure. In those cases, the function
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returns <TT>UPNP_E_SUCCESS</TT> and the appropriate error code will
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be in the <B>Upnp_Event_Subscribe.ErrCode</B> field in the <B>Event</B>
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structure passed to the callback.
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<P></BLOCKQUOTE>
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<DL><DT><DT><B>Parameters:</B><DD><B>Hnd</B> - The handle of the control point that
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is subscribing.
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<BR><B></B> - <!1><A HREF="Upnp_Event_Subscribe.html#DOC.1.4.2.12.3">PublisherUrl</A> The URL of the service to subscribe
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to.
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<BR><B></B> - <!1><A HREF="Upnp_Event_Subscribe.html#DOC.1.4.2.12.4">TimeOut</A> The requested subscription time. Upon
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return, it contains the actual
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subscription time returned from the
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service.
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<BR><B>Fun</B> - Pointer to the callback function for
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this subscribe request.
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<BR><B>Cookie</B> - A user data value passed to the
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callback function when invoked. <BR><DT><B>Returns:</B><DD> [int] An integer representing one of the following:
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<UL>
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<LI> <TT>UPNP_E_SUCCESS</TT>: The operation completed successfully.
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<LI> <TT>UPNP_E_INVALID_HANDLE</TT>: The handle is not a valid control
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point handle.
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<LI> <TT>UPNP_E_INVALID_URL</TT>: The <B>PublisherUrl</B> is not a valid
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URL.
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<LI> <TT>UPNP_E_INVALID_PARAM</TT>: Either <B>TimeOut</B> or <B>Fun</B> or
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<B>PublisherUrl</B> is not a valid pointer.
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<LI> <TT>UPNP_E_OUTOF_MEMORY</TT>: Insufficient resources exist to
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complete this operation.
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<LI> <TT>UPNP_E_NETWORK_ERROR</TT>: A network error occured (returned in
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the <B>Upnp_Event_Subscribe.ErrCode</B> field as part of the
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callback).
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<LI> <TT>UPNP_E_SOCKET_WRITE</TT>: An error or timeout occurred writing
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to a socket (returned in the
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<B>Upnp_Event_Subscribe.ErrCode</B> field as part of the
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callback).
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<LI> <TT>UPNP_E_SOCKET_READ</TT>: An error or timeout occurred reading
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from a socket (returned in the
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<B>Upnp_Event_Subscribe.ErrCode</B> field as part of the
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callback).
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<LI> <TT>UPNP_E_SOCKET_BIND</TT>: An error occurred binding the socket
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(returned in the <B>Upnp_Event_Subscribe.ErrCode</B> field as
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part of the callback).
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<LI> <TT>UPNP_E_SOCKET_CONNECT</TT>: An error occurred connecting to
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<B>PublisherUrl</B> (returned in the <B>
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Upnp_Event_Subscribe.ErrCode</B> field as part of the callback).
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<LI> <TT>UPNP_E_OUTOF_SOCKET</TT>: An error occurred creating the
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socket (returned in the <B>Upnp_Event_Subscribe.ErrCode</B>
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field as part of the callback).
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<LI> <TT>UPNP_E_BAD_RESPONSE</TT>: An error occurred in response from
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the publisher (returned in the <B>
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Upnp_Event_Subscribe.ErrCode</B> field as part of the callback).
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<LI> <TT>UPNP_E_SUBSCRIBE_UNACCEPTED</TT>: The publisher refused
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the subscription request (returned in the <B>
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Upnp_Event_Subscribe.ErrCode</B> field as part of the callback).
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</UL>
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<BR><DD></DL><P><P><I><A HREF="index.html">Alphabetic index</A></I></P><HR>
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<BR>
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This page was generated with the help of <A HREF="http://docpp.sourceforge.net">DOC++</A>.
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