<HTML> <HEAD> <TITLE>cgGetConnectedToParameter</TITLE> <STYLE TYPE="text/css" MEDIA=screen> <!-- BODY { font-family: Arial,Helvetica; } BLOCKQUOTE { margin: 10pt; } H1,A { color: #336699; } /*** Top menu style ****/ .mmenuon { font-family: Arial,Helvetica; font-weight: bold; text-decoration: none; color: #ff6600; font-size: 10pt; } .mmenuoff { font-family: Arial,Helvetica; font-weight: bold; text-decoration: none; color: #ffffff; font-size: 10pt; } .cpyright { font-family: Arial,Helvetica; font-weight: bold; text-decoration: none; color: #ffffff; font-size: xx-small; } .cpyrightText { font-family: Arial,Helvetica; font-weight: bold; text-decoration: none; color: #ffffff; font-size: xx-small; } .sections { font-family: Arial,Helvetica; font-weight: bold; text-decoration: none; color: #336699; font-size: 11pt; } .dsections { font-family: Arial,Helvetica; font-weight: bold; text-decoration: none; color: #336699; font-size: 12pt; } .slink { font-family: Arial,Helvetica; font-weight: normal; 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</PRE> <H1><A NAME="PARAMETERS"><A NAME="3">PARAMETERS </A></A></H1> <DL> <DT><STRONG>param </STRONG></DT> <DD> <P> The source parameter. </P> <DT><STRONG>index </STRONG></DT> <DD> <P> Since there may be multiple destination (to) parameters connected to <B>param</B>, <B>index</B> is need to specify which one is returned. <B>index</B> must be within the range of <B>0</B> to <B>N - 1</B> where <B>N</B> is the number of connected destination parameters. </P> </DD></DL> <H1><A NAME="RETURN_VALUES"><A NAME="4">RETURN VALUES </A></A></H1> <P> Returns one of the destination parameters connected to <B>param</B>. </P> <P> Returns <B>NULL</B> if an error occurs. </P> <H1><A NAME="DESCRIPTION"><A NAME="5">DESCRIPTION </A></A></H1> <P> Returns one of the destination parameters connected to <B>param</B>. <A HREF="cgGetNumConnectedToParameters.html">cgGetNumConnectedToParameters</A> should be used to determine the number of destination parameters connected to <B>param</B>. </P> <H1><A NAME="EXAMPLES"><A NAME="6">EXAMPLES </A></A></H1> <PRE> int nParams = cgGetNumConnectedToParameters( sourceParam ); for ( int i=0; i < nParams; ++i ) { CGparameter toParam = cgGetConnectedToParameter( sourceParam, i ); /* Do stuff with toParam ... */ } </PRE> <H1><A NAME="ERRORS"><A NAME="7">ERRORS </A></A></H1> <P> <B>CG_INVALID_PARAM_HANDLE_ERROR</B> is generated if <B>param</B> is not a valid parameter. </P> <P> <B>CG_OUT_OF_ARRAY_BOUNDS_ERROR</B> is generated if <B>index</B> is less than 0 or greater than or equal to the number of parameters connected to <B>param</B>. </P> <H1><A NAME="HISTORY"><A NAME="8">HISTORY </A></A></H1> <P> <B>cgGetConnectedToParameter</B> was introduced in Cg 1.2. </P> <H1><A NAME="SEE_ALSO"><A NAME="9">SEE ALSO </A></A></H1> <P> <A HREF="cgConnectParameter.html">cgConnectParameter</A>, <A HREF="cgGetNumConnectedToParameters.html">cgGetNumConnectedToParameters</A> </P> </BLOCKQUOTE> </BODY>