# Synopsis

PDX_MSGT gdx_GetSurfaceClosure(long option, MDA_PTR db_ptr, PDX_BOOL *u_closed, PDX_BOOL *v_closed)

# Purpose

Determine if a GDX surface is closed.

# Description

Determines if a GDX surface is closed in the U and V parametric directions.

# Input

## option

Options (not used)

## db_ptr

The GDX surface entity database pointer

# Output

## u_closed

The U surface closure flag

## v_closed

The V surface closure flag

# Return

          GDX_NOERR
          GDX_ENTITYNOTSURFACE
          Low level error return
          .fi