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+/*
+ * Copyright (c) 1990-2004 Paul Vojta and others
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PAUL VOJTA OR ANY OTHER AUTHOR OF THIS SOFTWARE BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * NOTE: xdvi is based on prior work, as noted in the modification history in
+ * xdvi.c.
+ *
+ */
+
+#ifndef MAG_H_
+#define MAG_H_
+
+#define MAGBORD 1 /* border size for magnifier */
+
+extern void show_distance_from_ruler(XEvent *event, Boolean to_stdout);
+extern void drag_ruler_motion(XEvent *event);
+extern void drag_ruler_release(XEvent *event);
+extern void clear_ruler(void);
+extern void show_ruler(XEvent *event);
+extern void redraw_ruler(void);
+extern void ruler_snap_origin(XEvent *event);
+
+extern void mag_release(XEvent * event);
+extern void move_magnifier(void);
+extern void create_magnifier(void);
+
+#endif /* MAG_H_ */
+