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diff --git a/nxcompshad/src/X11.h b/nxcompshad/src/X11.h
new file mode 100644
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+++ b/nxcompshad/src/X11.h
@@ -0,0 +1,139 @@
+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com)          */
+/* Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de>  */
+/* Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de>                 */
+/* Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de>                */
+/* Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/
+/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com)           */
+/*                                                                        */
+/* NXCOMPSHAD, NX protocol compression and NX extensions to this software */
+/* are copyright of the aforementioned persons and companies.             */
+/*                                                                        */
+/* Redistribution and use of the present software is allowed according    */
+/* to terms specified in the file LICENSE which comes in the source       */
+/* distribution.                                                          */
+/*                                                                        */
+/* All rights reserved.                                                   */
+/*                                                                        */
+/* NOTE: This software has received contributions from various other      */
+/* contributors, only the core maintainers and supporters are listed as   */
+/* copyright holders. Please contact us, if you feel you should be listed */
+/* as copyright holder, as well.                                          */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef X11Poller_H
+#define X11Poller_H
+
+#include <nx-X11/Xlib.h>
+#include <X11/extensions/XShm.h>
+#include "X11/include/Xdamage_nxcompshad.h"
+#include "X11/include/Xrandr_nxcompshad.h"
+
+#include "Core.h"
+
+class Poller : public CorePoller
+{
+  public:
+
+  Poller(Input *, Display *display, int = 0);
+
+  ~Poller();
+
+  int init();
+
+  void setRootSize();
+
+  void destroyShmImage();
+
+  void getEvents(void);
+
+  void getScreenSize(int *width, int *height);
+
+  void setScreenSize(int *width, int *height);
+
+  private:
+
+  Display *display_;
+
+  char *shadowDisplayName_;
+
+  int shadowDisplayUid_;
+
+  char *tmpBuffer_;
+
+  char xtestExtension_;
+
+  char shmExtension_;
+
+  char randrExtension_;
+
+  int randrEventBase_;
+
+  char damageExtension_;
+
+  int damageEventBase_;
+
+  Damage damage_;
+
+  Region repair_;
+
+  char damageChanges_;
+
+  XShmSegmentInfo *shminfo_;
+
+  XImage *image_;
+
+  int updateShadowFrameBuffer(void);
+
+  char *getRect(XRectangle);
+
+  void keymapShadowInit(Display *display);
+
+  void keymapMasterInit();
+
+  KeySym keymapKeycodeToKeysym(KeyCode keycode, KeySym *keysyms,
+                                   int minKey, int per, int col);
+
+  KeyCode keymapKeysymToKeycode(KeySym keysym, KeySym *keysyms,
+                                    int minKey, int maxKey, int per, int *col);
+
+  KeyCode translateKeysymToKeycode(KeySym keysym, int *col);
+
+  Bool checkModifierKeys(KeySym keysym, Bool isKeyPress);
+
+  void sendFakeModifierEvents(int pos, Bool skip);
+
+  void cancelFakeModifierEvents();
+
+  Bool keyIsDown(KeyCode keycode);
+
+  void addKeyPressed(KeyCode received, KeyCode sent);
+
+  KeyCode getKeyPressed(KeyCode received);
+
+  void handleKeyboardEvent(Display *display, XEvent *);
+
+  void handleWebKeyboardEvent(KeySym keysym, Bool isKeyPress);
+
+  void handleMouseEvent(Display *, XEvent *);
+
+  void xtestInit(void);
+
+  void shmInit(void);
+
+  void randrInit(void);
+
+  void damageInit(void);
+
+  void handleRRScreenChangeNotify(XEvent *);
+
+  void handleDamageNotify(XEvent *);
+
+  void updateDamagedAreas(void);
+};
+
+int anyEventPredicate(Display *display, XEvent *event, XPointer parameter);
+
+#endif /* X11Poller_H */