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Import gnuplot 3.7.3

/*
 * $Id: help.h,v 1.1.1.2.2.1 2002/01/31 21:20:15 lhecking Exp $
 *
 */

/* GNUPLOT - help.h */

/*[
 * Copyright 1986 - 1993, 1998   Thomas Williams, Colin Kelley
 *
 * Permission to use, copy, and distribute this software and its
 * documentation for any purpose with or without fee is hereby granted,
 * provided that the above copyright notice appear in all copies and
 * that both that copyright notice and this permission notice appear
 * in supporting documentation.
 *
 * Permission to modify the software is granted, but not the right to
 * distribute the complete modified source code.  Modifications are to
 * be distributed as patches to the released version.  Permission to
 * distribute binaries produced by compiling modified sources is granted,
 * provided you
 *   1. distribute the corresponding source modifications from the
 *    released version in the form of a patch file along with the binaries,
 *   2. add special version identification to distinguish your version
 *    in addition to the base release version number,
 *   3. provide your name and address as the primary contact for the
 *    support of your modified version, and
 *   4. retain our contact information in regard to use of the base
 *    software.
 * Permission to distribute the released version of the source code along
 * with corresponding source modifications in the form of a patch file is
 * granted with same provisions 2 through 4 for binary distributions.
 *
 * This software is provided "as is" without express or implied warranty
 * to the extent permitted by applicable law.
]*/

#ifndef GNUPLOT_HELP_H
# define GNUPLOT_HELP_H

#include "ansichek.h"

/* Exit status returned by help() */
#define	H_FOUND		0	/* found the keyword */
#define	H_NOTFOUND	1	/* didn't find the keyword */
#define	H_ERROR		(-1)	/* didn't find the help file */

int help __PROTO((char *keyword, char *path, int *subtopics));
void FreeHelp __PROTO((void));	/* use this if you need memory */

#endif /* GNUPLOT_HELP_H */