diff --git a/common/rfb/Region.h b/common/rfb/Region.h
new file mode 100644
index 0000000..9337556
--- /dev/null
+++ b/common/rfb/Region.h
@@ -0,0 +1,84 @@
+/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * 
+ * This 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 software 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 software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+// Cross-platform Region class based on the X11 region implementation
+
+#ifndef __RFB_REGION_INCLUDED__
+#define __RFB_REGION_INCLUDED__
+
+#include <rfb/Rect.h>
+#include <vector>
+
+struct _XRegion;
+
+namespace rfb {
+
+  struct ShortRect {
+    short x1, y1, x2, y2;
+  };
+
+  class Region {
+  public:
+    // Create an empty region
+    Region();
+    // Create a rectangular region
+    Region(const Rect& r);
+
+    Region(const Region& r);
+    Region &operator=(const Region& src);
+
+    ~Region();
+
+    // the following methods alter the region in place:
+
+    void clear();
+    void reset(const Rect& r);
+    void translate(const rfb::Point& delta);
+    void setOrderedRects(const std::vector<Rect>& rects);
+    void setExtentsAndOrderedRects(const ShortRect* extents, int nRects,
+                                   const ShortRect* rects);
+    void copyFrom(const Region& r);
+
+    void assign_intersect(const Region& r);
+    void assign_union(const Region& r);
+    void assign_subtract(const Region& r);
+
+    // the following three operations return a new region:
+
+    Region intersect(const Region& r) const;
+    Region union_(const Region& r) const;
+    Region subtract(const Region& r) const;
+
+    bool equals(const Region& b) const;
+    int numRects() const;
+    bool is_empty() const { return numRects() == 0; }
+
+    bool get_rects(std::vector<Rect>* rects, bool left2right=true,
+                   bool topdown=true, int maxArea=0) const;
+    Rect get_bounding_rect() const;
+
+    void debug_print(const char *prefix) const;
+
+  protected:
+
+    struct _XRegion* xrgn;
+  };
+
+};
+
+#endif // __RFB_REGION_INCLUDED__