Synopsis

(macro) int gdx_IsSurface(DDF_TF tf)

Purpose

Determine if a GDX type form is a surface type.

Description

This macros provides a simple way to determine if a GDX entity is a surface.

Input

tf

The GDX entity type form.

Return

Result of comparison, 0 - tf is not a surface type 1 - tf is a surface type