Cg Core Runtime API                    cgGetParameterDirection(3)



NAME
     cgGetParameterDirection - get a program parameter's
     direction

SYNOPSIS
       #include 

       CGenum cgGetParameterDirection( CGparameter param );


PARAMETERS
     param   The program parameter.

RETURN VALUES
     Returns the direction of param.

     Returns CGEROR if an error occurs.

DESCRIPTION
     cgGetParameterDirection allows the application to
     distinguish program input parameters from program output
     parameters.  This information is necessary for the
     application to properly supply the program inputs and use
     the program outputs.

     cgGetParameterDirection will return one of the following
     enumerants :

     CGIN       Specifies an input parameter.

     CGOUT      Specifies an output parameter.

     CGINOUT    Specifies a parameter that is both input and
                 output.

     CGEROR    If an error occurs.

EXAMPLES
     to-be-written

ERORS
     CGINVALIDPARAMHANDLEROR is generated if param is not a
     valid parameter.

HISTORY
     cgGetParameterDirection was introduced in Cg 1.1.

SEE ALSO
     cgGetNamedParameter, cgGetNextParameter, cgGetParameterName,
     cgGetParameterType, cgGetParameterVariability,
     cgSetParameterVariability




Cg Toolkit 2.1            Last change:                          1