--- /dev/null
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
+ * file for a list of people on the GTK+ Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+#if !defined (__GDKX_H_INSIDE__) && !defined (GDK_COMPILATION)
+#error "Only <gdk/gdkx.h> can be included directly."
+#endif
+
+#ifndef __GDK_X11_SCREEN_H__
+#define __GDK_X11_SCREEN_H__
+
+#include <gdk/gdk.h>
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+
+G_BEGIN_DECLS
+
+Screen * gdk_x11_screen_get_xscreen (GdkScreen *screen);
+int gdk_x11_screen_get_screen_number (GdkScreen *screen);
+
+const char* gdk_x11_screen_get_window_manager_name (GdkScreen *screen);
+
+#ifndef GDK_MULTIHEAD_SAFE
+gint gdk_x11_get_default_screen (void);
+#endif
+
+/**
+ * GDK_DISPLAY_XDISPLAY:
+ * @display: a #GdkDisplay.
+ *
+ * Returns the display of a #GdkDisplay.
+ *
+ * Returns: an Xlib <type>Display*</type>
+ */
+#define GDK_SCREEN_XDISPLAY(screen) (gdk_x11_display_get_xdisplay (gdk_screen_get_display (screen)))
+
+/**
+ * GDK_SCREEN_XSCREEN:
+ * @screen: a #GdkScreen
+ *
+ * Returns the screen of a #GdkScreen.
+ *
+ * Returns: an Xlib <type>Screen*</type>.
+ */
+#define GDK_SCREEN_XSCREEN(screen) (gdk_x11_screen_get_xscreen (screen))
+
+/**
+ * GDK_SCREEN_XNUMBER:
+ * @screen: a #GdkScreen
+ *
+ * Returns the index of a #GdkScreen.
+ *
+ * Returns: the position of @screen among the screens of
+ * its display.
+ */
+#define GDK_SCREEN_XNUMBER(screen) (gdk_x11_screen_get_screen_number (screen))
+
+/* returns TRUE if we support the given WM spec feature */
+gboolean gdk_x11_screen_supports_net_wm_hint (GdkScreen *screen,
+ GdkAtom property);
+
+XID gdk_x11_screen_get_monitor_output (GdkScreen *screen,
+ gint monitor_num);
+
+G_END_DECLS
+
+#endif /* __GDK_X11_SCREEN_H__ */