NAME
    cgIsEffect - determine if a CGeffect references a valid Cg effect

SYNOPSIS
      #include <Cg/cg.h>

      CGbool cgIsEffect(CGeffect effect);

PARAMETERS
    effect  Specifies the effect handle to check.

DESCRIPTION
    cgIsEffect returns CG_TRUE if effect references a valid effect, CG_FALSE
    otherwise.

ERRORS
    This function generates no errors.

SEE ALSO
    the cgCreateEffect manpage, the cgCreateEffectFromFile manpage

