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

SYNOPSIS
      #include <Cg/cg.h>

      CGbool cgIsContext( CGcontext context );

PARAMETERS
    context 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

