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diff --git a/ui/preference_utils.h b/ui/preference_utils.h
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+/* preference_utils.h
+ * Routines for handling preferences
+ *
+ * $Id$
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef __PREFRENCE_UTILS_H__
+#define __PREFRENCE_UTILS_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/** @file
+ * Preference utility routines.
+ *  @ingroup prefs_group
+ */
+
+/** "Stash" a preference.
+ * Copy a preference to its stashed value. Can be called from prefs_pref_foreach().
+ *
+ * @param pref: A preference.
+ */
+extern guint pref_stash(pref_t *pref, gpointer unused _U_);
+
+/** "Untash" a preference.
+ * Set a preference to its stashed value. Can be called from prefs_pref_foreach().
+ *
+ * @param pref: A preference.
+ * @param changed_p: A pointer to a gboolean. Set to TRUE if the preference differs
+ * from its stashed value.
+ *
+ * @return Always returns 0.
+ */
+extern guint pref_unstash(pref_t *pref, gpointer changed_p);
+
+/** Clean up a stashed preference.
+ * Can be called from prefs_pref_foreach().
+ *
+ * @param pref A preference.
+ *
+ * @return Always returns 0.
+ */
+extern guint pref_clean_stash(pref_t *pref, gpointer unused _U_);
+
+/** Set a stashed preference to its default value.
+ *
+ *@pram pref A preference.
+ */
+extern void reset_stashed_pref(pref_t *pref);
+
+
+/** If autoscroll in live captures is active or not
+ */
+extern gboolean auto_scroll_live;
+
+/** Fill in capture options with values from the preferences
+ */
+extern void prefs_to_capture_opts(void);
+
+/** Save all preferences
+ */
+extern void prefs_main_write(void);
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __PREFRENCE_UTILS_H__ */