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<BLOCKQUOTE>
<H1><A NAME="NAME"><A NAME="1">NAME
</A></A></H1>
<P>
<B>cgGetParameterDefaultValuefc</B> - get the default values of any numeric parameter
</P>
<H1><A NAME="SYNOPSIS"><A NAME="2">SYNOPSIS
</A></A></H1>
<PRE> #include <Cg/cg.h>
int cgGetParameterDefaultValuefc( CGparameter param,
int nelements,
float * v );
</PRE>
<H1><A NAME="PARAMETERS"><A NAME="3">PARAMETERS
</A></A></H1>
<DL>
<DT><STRONG>param
</STRONG></DT>
<DD>
<P>
The parameter whose default values will be retrieved.
</P>
<DT><STRONG>nelements
</STRONG></DT>
<DD>
<P>
The number of elements in array <B>v</B>.
</P>
<DT><STRONG>v
</STRONG></DT>
<DD>
<P>
Destination buffer into which the parameter default values will be written.
</P>
</DD></DL>
<H1><A NAME="RETURN_VALUES"><A NAME="4">RETURN VALUES
</A></A></H1>
<P>
Returns the total number of default values written to <B>v</B>.
</P>
<H1><A NAME="DESCRIPTION"><A NAME="5">DESCRIPTION
</A></A></H1>
<P>
<B>cgGetParameterDefaultValuefc</B> allows the application to get the default values from any
numeric parameter or parameter array. The default values are returned as floats
in <B>v</B>.
</P>
<P>
The given parameter must be a scalar, vector, matrix, or a (possibly
multidimensional) array of scalars, vectors, or matrices.
</P>
<P>
Any matrices referenced by <B>param</B> will be copied in column-major order.
</P>
<P>
The size of <B>v</B> is passed as <B>nelements</B>.
If <B>v</B> is smaller than the total number of default values in the given
source parameter, <B>CG_NOT_ENOUGH_DATA_ERROR</B> is generated.
</P>
<P>
The total number of default values in a parameter, ntotal, may be computed as follow:
</P>
<PRE> int nrows = cgGetParameterRows(param);
int ncols = cgGetParameterColumns(param);
int asize = cgGetArrayTotalSize(param);
int ntotal = nrows*ncols;
if (asize > 0) ntotal *= asize;
</PRE>
<H1><A NAME="EXAMPLES"><A NAME="6">EXAMPLES
</A></A></H1>
<P>
<I>to-be-written</I>
</P>
<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_INVALID_POINTER_ERROR</B> is generated if <B>v</B> is <B>NULL</B>.
</P>
<P>
<B>CG_NOT_ENOUGH_DATA_ERROR</B> is generated if <B>nelements</B> is less than the total
size of <B>param</B>.
</P>
<P>
<B>CG_NON_NUMERIC_PARAMETER_ERROR</B> is generated if <B>param</B> is of a non-numeric type.
</P>
<H1><A NAME="HISTORY"><A NAME="8">HISTORY
</A></A></H1>
<P>
<B>cgGetParameterDefaultValuefc</B> was introduced in Cg 2.1.
</P>
<H1><A NAME="SEE_ALSO"><A NAME="9">SEE ALSO
</A></A></H1>
<P>
<A HREF="cgGetParameterValue.html">cgGetParameterValue</A>,
<A HREF="cgSetParameterValue.html">cgSetParameterValue</A>,
<A HREF="cgGetParameterRows.html">cgGetParameterRows</A>,
<A HREF="cgGetParameterColumns.html">cgGetParameterColumns</A>,
<A HREF="cgGetArrayTotalSize.html">cgGetArrayTotalSize</A>
</P>
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