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/*!
\file 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/gstypes.h>
void (*Cxl_func) ();
void (*Swap_func) ();
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;
}
/*!
\brief Set swap function
\param pointer to function
*/
void GS_set_swap_func(void (*f) (void))
{
Swap_func = f;
return;
}
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