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diff --git a/src/video_out/video_out_x11.h b/src/video_out/video_out_x11.h
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+++ b/src/video_out/video_out_x11.h
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+/* 
+ * Copyright (C) 2000-2001 the xine project
+ * 
+ * This file is part of xine, a unix video player.
+ * 
+ * xine 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.
+ * 
+ * xine 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
+ *
+ * $Id: video_out_x11.h,v 1.1 2001/05/08 23:00:03 guenter Exp $
+ *
+ * structs and defines specific to all x11 related output plugins
+ * (any x11 base xine ui should include this)
+ */
+
+#ifndef HAVE_VIDEO_OUT_X11_H
+#define HAVE_VIDEO_OUT_X11_H
+
+/*
+ * this is the visual data struct any x11 gui should supply
+ * (pass this to init_video_out_plugin or the xine_load_video_output_plugin
+ * utility function)
+ */
+
+typedef struct {
+
+  /* some information about the display */
+  Display *display;
+  int      screen;
+  double   display_ratio;
+
+  /* drawable to display the video in/on */
+  Drawable d;
+  
+  /* area of that drawable to be used by video */
+  int      x,y,w,h;
+
+  /*
+   * calc dest size
+   *
+   * this will be called by the video driver to find out
+   * how big the video output area size will be for a
+   * given video size. The ui should _not_ adjust it's
+   * video out area, just do some calculations and return 
+   * the size
+   */
+  void (*calc_dest_size) (int video_width, int video_height, 
+			  int *dest_width, int *dest_height);
+
+  /*
+   * request dest size
+   *
+   * this will be called by the video driver to request
+   * the video output area to be resized to fit the video.
+   * note: the ui doesn't have to adjust itself to this
+   * size, this is just to be taken as a hint.
+   * ui must return the actual size of the video output
+   * area and the video output driver will do it's best
+   * to adjust the video frames to that size (while
+   * preserving aspect ration and stuff). 
+   */
+
+  void (*reques_dest_size) (int video_width, int video_height,
+			    int *dest_x, int *dest_y, 
+			    int *dest_height, int *dest_width);
+
+} x11_visual_t;
+
+/*
+ * constants for gui_data_exhange's data_type parameter
+ */
+
+#define GUI_DATA_EX_DEST_POS_SIZE_CHANGED 0
+#define GUI_DATA_EX_COMPLETION_EVENT      1
+
+
+#endif
+