diff --git a/graphics/vnc/server/vnc_server.h b/graphics/vnc/server/vnc_server.h
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+++ b/graphics/vnc/server/vnc_server.h
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+/****************************************************************************
+ * graphics/vnc/server/vnc_server.h
+ *
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __GRAPHICS_VNC_SERVER_VNC_SERVER_H
+#define __GRAPHICS_VNC_SERVER_VNC_SERVER_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+
+#include <nuttx/video/fb.h>
+#include <nuttx/nx/nxglib.h>
+#include <nuttx/net/net.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/* This enumeration indicates the state of the VNC server */
+
+enum vnc_server_e
+{
+  VNCSERVER_UNINITIALIZED = 0, /* Initial state */
+  VNCSERVER_INITIALIZED,       /* State structured initialized, but not connected */
+  VNCSERVER_CONNECTED,         /* Connect to a client, but not yet configured */
+  VNCSERVER_CONFIGURED,        /* Configured and ready to transfer graphics */
+  VNCSERVER_SCANNING,          /* Running and activly transferring graphics */
+  VNCSERVER_STOPPING           /* The server has been asked to stop */
+}
+
+struct vnc_session_s
+{
+  /* NX graphics system */
+
+  NXHANDLE handle;             /* NX graphics handle */
+
+  /* Connection data */
+
+  struct socket listen;        /* Listen socket */
+  struct socket connect;       /* Connected socket */
+  volatile uint8_t state;      /* See enum vnc_server_e */
+
+  /* Display geometry and color characteristics */
+
+  uint8_t colorfmt             /* See include/nuttx/fb.h */
+  struct nxgl_size_s screen;   /* Size of the screen in pixels x rows */
+};
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#endif /* __GRAPHICS_VNC_SERVER_VNC_SERVER_H */