gsx.c

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/*!
   \file lib/ogsf/gsx.c
 
   \brief OGSF library - loading and manipulating surfaces
 
   GRASS OpenGL gsurf OGSF Library
 
   (C) 1999-2008 by the GRASS Development Team
 
   This program is free software under the
   GNU General Public License (>=v2).
   Read the file COPYING that comes with GRASS
   for details.
 
   \author Bill Brown USACERL (December 1993)
   \author Doxygenized by Martin Landa <landa.martin gmail.com> (May 2008)
 */
 
#include <grass/ogsf.h>
 
void (*Cxl_func)(void);
 
static int Cxl = 0;
 
/*!
   \brief Check for cancel
 
   \return code
 */
int GS_check_cancel(void)
{
    Cxl_func();
 
    return (Cxl);
}
 
/*!
   \brief Set cancel
 */
void GS_set_cancel(int c)
{
    Cxl = c;
 
    return;
}
 
/*!
   \brief Set cxl function
 
   \param pointer to function
 */
void GS_set_cxl_func(void (*f)(void))
{
    Cxl_func = f;
 
    return;
}