NAME
    cgGetEffectParameterBySemantic - get the a parameter in an effect via
    its semantic

SYNOPSIS
      #include <Cg/cg.h>

      CGparameter cgGetEffectParameterBySemantic( CGeffect effect, const char *semantic );

PARAMETERS
    effect  Specifies the effect to retrieve the parameter from.

    semantic
            Specifies the name of the semantic.

DESCRIPTION
    cgGetEffectParameterBySemantic returns the parameter in an effect with
    the given semantic associated with it. It more than one parameter in the
    effect has the same semantic, an arbitrary one of them will be returned.

RETURN VALUES
    cgGetEffectParameterBySemantic returns a CGparameter object in effect
    that has the given semantic. NULL is returned if effect is invalid or if
    effect does not have any parameters with the given semantic.

ERRORS
    CG_INVALID_EFFECT_HANDLE_ERROR is generated if effect does not refer to
    a valid effect.

    CG_INVALID_PARAMETER_ERROR is generated if semantic is NULL or the empty
    string.

SEE ALSO
    the cgGetNamedEffectParameter manpage

