libupnp/docs/dist/html/upnp/UpnpSendAction.html
2006-07-06 12:37:29 +00:00

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<TITLE>EXPORT_SPEC int UpnpSendAction</TITLE>
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<H2>EXPORT_SPEC int <A HREF="#DOC.DOCU">UpnpSendAction</A></H2><H2>( IN <!1><A HREF="UpnpClient_Handle.html">UpnpClient_Handle</A> Hnd,<BR>&nbsp; IN const char* ActionURL,<BR>&nbsp; IN const char* <!1><A HREF="Upnp_Discovery.html#DOC.1.4.2.11.5">ServiceType</A>,<BR>&nbsp; IN const char* <!1><A HREF="Upnp_State_Var_Request.html#DOC.1.4.2.8.4">DevUDN</A>,<BR>&nbsp; IN IXML_Document* Action,<BR>&nbsp; OUT IXML_Document** RespNode )</H2><BLOCKQUOTE><B>UpnpSendAction</B> sends a message to change a state variable in a service.</BLOCKQUOTE>
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<H2>Documentation</H2>
<BLOCKQUOTE><B>UpnpSendAction</B> sends a message to change a state variable
in a service. This is a synchronous call that does not return until the
action is complete.
<P>Note that a positive return value indicates a SOAP-protocol error code.
In this case, the error description can be retrieved from <B>RespNode</B>.
A negative return value indicates an SDK error.
<P></BLOCKQUOTE>
<DL><DT><DT><B>Parameters:</B><DD><B>Hnd</B> - The handle of the control point
sending the action.
<BR><B>ActionURL</B> - The action URL of the service.
<BR><B></B> - <!1><A HREF="Upnp_Discovery.html#DOC.1.4.2.11.5">ServiceType</A> The type of the service.
<BR><B></B> - <!1><A HREF="Upnp_State_Var_Request.html#DOC.1.4.2.8.4">DevUDN</A> This parameter is ignored and must be
<TT>NULL</TT>.
<BR><B>Action</B> - The DOM document for the action.
<BR><B>RespNode</B> - The DOM document for the response
to the action. The SDK allocates
this document and the caller needs to free
it. <BR><DT><B>Returns:</B><DD> [int] An integer representing one of the following:
<UL>
<LI> <TT>UPNP_E_SUCCESS</TT>: The operation completed successfully.
<LI> <TT>UPNP_E_INVALID_HANDLE</TT>: The handle is not a valid control
point handle.
<LI> <TT>UPNP_E_INVALID_URL</TT>: <B>ActionUrl</B> is not a valid URL.
<LI> <TT>UPNP_E_INVALID_ACTION</TT>: This action is not valid.
<LI> <TT>UPNP_E_INVALID_DEVICE</TT>: <B>DevUDN</B> is not a
valid device.
<LI> <TT>UPNP_E_INVALID_PARAM</TT>: <B>ServiceType</B>, <B>Action</B>,
<B>ActionUrl</B>, or
<B>RespNode</B> is not a valid pointer.
<LI> <TT>UPNP_E_OUTOF_MEMORY</TT>: Insufficient resources exist to
complete this operation.
</UL>
<BR><DD></DL><P><P><I><A HREF="index.html">Alphabetic index</A></I></P><HR>
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