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diff --git a/nuttx/include/nuttx/nxtk.h b/nuttx/include/nuttx/nxtk.h
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+++ b/nuttx/include/nuttx/nxtk.h
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+/****************************************************************************
+ * include/nuttx/nxtk.h
+ *
+ *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 __INCLUDE_NUTTX_NXTK_H
+#define __INCLUDE_NUTTX_NXTK_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/types.h>
+
+#include <nuttx/nxtk.h>
+#include "nxbe.h"
+#include "nxfe.h"
+
+/****************************************************************************
+ * Pre-processor definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/* This is an objects, implemented in C, that provides access to the NX
+ * window APIs.  Why would you use this object instead of direct calls to the
+ * nx_ APIs?  So that you can support polymorphism.  (Doesn't this make you
+ * really appreciate C++?).  All of the APIs provided in the NX toolkit
+ * export this interface.
+ *
+ * The methods provided in this call table are the nx_* window APIs discussed
+ * in include/nx.h accessed through a vtable.  See that header for description
+ * of each method.
+ */
+
+typedef FAR struct nxtk_base_s *NXTWINDOW;
+struct nxtk_base_s
+{
+  /* Destructor */
+
+  void (*close)(NXTWINDOW hwnd);
+
+  /* Window methods (documented in include/nuttx/nx.h) */
+
+  int (*getposition)(NXTWINDOW hwnd);
+  int (*setposition)(NXTWINDOW hwnd, FAR struct nxgl_point_s *pos);
+  int (*setsize)(NXTWINDOW hwnd, FAR struct nxgl_rect_s *size);
+  int (*raise)(NXTWINDOW hwnd);
+  int (*lower)(NXTWINDOW hwnd);
+  int (*fill)(NXTWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
+              nxgl_mxpixel_t color[CONFIG_NX_NPLANES]);
+  int (*filltrapezoid)(NXTWINDOW hwnd, FAR struct nxgl_trapezoid_s *trap,
+                       nxgl_mxpixel_t color[CONFIG_NX_NPLANES]);
+  int (*move)(NXTWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
+              FAR const struct nxgl_point_s *offset);
+  int (*bitmap)(NXTWINDOW hwnd, FAR const struct nxgl_rect_s *dest,
+                FAR const void *src[CONFIG_NX_NPLANES],
+                FAR const struct nxgl_point_s *origin,
+                unsigned int stride);
+};
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+# define EXTERN extern "C"
+extern "C" {
+#else
+# define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxtk_rawwindow
+ *
+ * Description:
+ *    This function is the constructor for a raw NXTWINDOW object. 
+ *    This provides a one-to-one mapping with the window APIs in nx.h.
+ *
+ * Input Parameters:
+ *   handle - The handle returned by nx_connect or nx_open
+ *   cb     - Callbacks used to process window events
+ *   arg    - User provided value that will be returned with NX callbacks.
+ *
+ * Return:
+ *   Success: A non-NULL handle used with subsequent method calls
+ *   Failure:  NULL is returned and errno is set appropriately
+ *
+ ****************************************************************************/
+
+EXTERN NXTWINDOW nxtk_rawwindow(NXHANDLE handle,
+                                FAR const struct nx_callback_s *cb,
+                                FAR void *arg);
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __INCLUDE_NUTTX_NXTK_H */