cgIsContext(3)

NAME
cgIsContext - determine if a context handle references a valid context

SYNOPSIS
  #include <Cg/cg.h>
  CGbool cgIsContext( CGcontext context );

PARAMETERS
The context handle to check.

RETURN VALUES
Returns CG_TRUE if context references a valid context.

Returns CG_FALSE otherwise.

DESCRIPTION
cgIsContext returns CG_TRUE if context references a valid context, CG_FALSE otherwise.

EXAMPLES
  CGcontext context = NULL;
  cgIsContext(context);          /* returns CG_FALSE */
  context = cgCreateContext();
  cgIsContext(context);          /* returns CG_TRUE, assuming create succeeded */
  cgDestroyContext(context);
  cgIsContext(context);          /* returns CG_FALSE */

ERRORS
None.

HISTORY
cgIsContext was introduced in Cg 1.1.

SEE ALSO
the cgCreateContext manpage, the cgDestroyContext manpage