NAME
    cgGetNextEffect - iterate through effects in a context

SYNOPSIS
      #include <Cg/cg.h>

      CGeffect cgGetNextEffect( CGeffect effect );

PARAMETERS
    effect  The current effect.

RETURN VALUES
    Returns the next effect in the context's internal sequence of effects.

    Returns NULL when effect is the last effect in the context.

DESCRIPTION
    The effects within a context can be iterated over with cgGetNextEffect.

    Note that no specific order of traversal is defined by this mechanism.
    The only guarantee is that each effect will be visited exactly once. No
    guarantees can be made if effects are created or deleted during
    iteration.

EXAMPLES
      CGeffect effect = cgGetFirstEffect( context );
      while( effect )
      {
        /* do something with effect */
        effect = cgGetNextEffect( effect );
      }

ERRORS
    CG_INVALID_EFFECT_HANDLE_ERROR is generated if effect is not a valid
    effect.

HISTORY
    cgGetNextEffect was introduced in Cg 1.4.

SEE ALSO
    the cgGetFirstEffect manpage

