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diff --git a/NxWidgets/UnitTests/CCheckBox/ccheckboxtest.cxx b/NxWidgets/UnitTests/CCheckBox/ccheckboxtest.cxx
new file mode 100644
index 000000000..90abf2e67
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+++ b/NxWidgets/UnitTests/CCheckBox/ccheckboxtest.cxx
@@ -0,0 +1,297 @@
+/////////////////////////////////////////////////////////////////////////////
+// NxWidgets/UnitTests/CCheckBox/ccheckboxtest.cxx
+//
+//   Copyright (C) 2012 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, NxWidgets, nor the names of its contributors
+//    me 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.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Included Files
+/////////////////////////////////////////////////////////////////////////////
+
+#include <nuttx/config.h>
+
+#include <nuttx/init.h>
+#include <cstdio>
+#include <cerrno>
+#include <debug.h>
+
+#include <nuttx/nx/nx.h>
+#include <nuttx/nx/nxfonts.h>
+
+#include "nxconfig.hxx"
+#include "cbgwindow.hxx"
+#include "ccheckboxtest.hxx"
+#include "cbitmap.hxx"
+#include "glyphs.hxx"
+
+/////////////////////////////////////////////////////////////////////////////
+// Definitions
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Private Classes
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Private Data
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Public Data
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Public Function Prototypes
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// CCheckBoxTest Method Implementations
+/////////////////////////////////////////////////////////////////////////////
+
+// CCheckBoxTest Constructor
+
+CCheckBoxTest::CCheckBoxTest()
+{
+  // Initialize state data
+
+  m_widgetControl = (CWidgetControl *)NULL;
+  m_bgWindow      = (CBgWindow *)NULL;
+  m_checkBox      = (CCheckBox *)NULL;
+}
+
+// CCheckBoxTest Descriptor
+
+CCheckBoxTest::~CCheckBoxTest(void)
+{
+  disconnect();
+}
+
+// Connect to the NX server
+
+bool CCheckBoxTest::connect(void)
+{
+  // Connect to the server
+
+  bool nxConnected = CNxServer::connect();
+  if (nxConnected)
+    {
+      // Set the background color
+
+      if (!setBackgroundColor(CONFIG_CCHECKBOXTEST_BGCOLOR))
+        {
+          message("CCheckBoxTest::connect: setBackgroundColor failed\n");
+        }
+    }
+
+  return nxConnected;
+}
+
+// Disconnect from the NX server
+
+void CCheckBoxTest::disconnect(void)
+{
+  // Free the radiobutton group
+
+  if (m_checkBox)
+    {
+      delete m_checkBox;
+      m_checkBox = (CCheckBox *)NULL;
+    }
+
+  // Close the window
+
+  if (m_bgWindow)
+    {
+      delete m_bgWindow;
+      m_bgWindow = (CBgWindow *)NULL;
+    }
+
+  // Free the widget control instance
+
+  if (m_widgetControl)
+    {
+      delete m_widgetControl;
+      m_widgetControl = (CWidgetControl *)NULL;
+    }
+
+  // And disconnect from the server
+
+  CNxServer::disconnect();
+}
+
+// Create the background window instance.  This function illustrates
+// the basic steps to instantiate any window:
+//
+// 1) Create a dumb CWigetControl instance
+// 2) Pass the dumb CWidgetControl instance to the window constructor
+//    that inherits from INxWindow.  This will "smarten" the CWidgetControl
+//    instance with some window knowlede
+// 3) Call the open() method on the window to display the window.
+// 4) After that, the fully smartened CWidgetControl instance can
+//    be used to generate additional widgets by passing it to the
+//    widget constructor
+
+bool CCheckBoxTest::createWindow(void)
+{
+  // Initialize the widget control using the default style
+
+  m_widgetControl = new CWidgetControl((CWidgetStyle *)NULL);
+
+  // Get an (uninitialized) instance of the background window as a class
+  // that derives from INxWindow.
+
+  m_bgWindow = getBgWindow(m_widgetControl);
+  if (!m_bgWindow)
+    {
+      message("CCheckBoxTest::createWindow: Failed to create CBgWindow instance\n");
+      disconnect();
+      return false;
+    }
+
+  // Open (and initialize) the window
+
+  bool success = m_bgWindow->open();
+  if (!success)
+    {
+      message("CCheckBoxTest::createWindow: Failed to open background window\n");
+      disconnect();
+      return false;
+    }
+
+  // Get the size of the display
+
+  struct nxgl_size_s windowSize;
+  if (!m_bgWindow->getSize(&windowSize))
+    {
+      printf("CCheckBoxTest::createWindow: Failed to get window size\n");
+      disconnect();
+      return false;
+    }
+
+  // Use the the size of the ON checkbox glyph. (adding twice the border thickness)
+
+  nxgl_coord_t width  = g_checkBoxOn.width + 2 * 1;
+  nxgl_coord_t height = g_checkBoxOn.height + 2 * 1;
+
+  nxgl_coord_t checkboxX = (windowSize.w - width) >> 1;
+  nxgl_coord_t checkboxY = (windowSize.h - height) >> 1;
+
+  // Create the checkbox
+
+  m_checkBox = new CCheckBox(m_widgetControl, checkboxX, checkboxY,
+                             width, height, (CWidgetStyle *)NULL);
+  if (!m_checkBox)
+    {
+      printf("CCheckBoxTest::createWindow: Failed to create CCheckBox\n");
+      disconnect();
+      return false;
+    }
+
+  return true;
+}
+
+// (Re-)draw the check box.
+
+void CCheckBoxTest::showCheckBox(void)
+{
+  m_checkBox->enable();        // Un-necessary, the widget is enabled by default
+  m_checkBox->enableDrawing();
+  m_checkBox->redraw();
+}
+
+// Push the radio button
+
+void CCheckBoxTest::clickCheckBox(void)
+{
+  // Get the checkbox center coordinates
+
+  nxgl_coord_t checkboxX = m_checkBox->getX() + (m_checkBox->getWidth() >> 1);
+  nxgl_coord_t checkboxY = m_checkBox->getY() + (m_checkBox->getHeight() >> 1);
+
+  // Click the checkbox by calling nx_mousein.  nx_mousein is meant to be
+  // called by mouse handling software. Here we just inject a left-button click
+  // directly in the center of the radio button.
+
+  // First, get the server handle.  Graphics software will never care
+  // about the server handle.  Here we need it to get access to the
+  // low-level mouse interface
+
+  NXHANDLE handle = getServer();
+
+  // Then inject the mouse click
+
+  (void)nx_mousein(handle, checkboxX, checkboxY, NX_MOUSE_LEFTBUTTON);
+
+  // Poll for mouse events
+  //
+  // Widget events are normally handled in a modal loop (by calling goModal()).
+  // However, for this case we know that we just pressed the mouse button
+  // so we don't have to poll.  We can just perform a one pass poll then
+  // then check if the mouse event was processed corredly.
+
+  m_widgetControl->pollEvents(m_checkBox);
+
+  // Then inject the mouse release
+
+  (void)nx_mousein(handle, checkboxX, checkboxY, 0);
+
+  // And poll for more mouse events
+
+  m_widgetControl->pollEvents(m_checkBox);
+
+  // And re-draw the buttons (the mouse click event should have automatically
+  // triggered the re-draw)
+  //
+  // showCheckBox();
+}
+
+// Show the state of the radio button group
+
+void CCheckBoxTest::showCheckBoxState(void)
+{
+  CCheckBox::CheckBoxState state = m_checkBox->getState();
+  switch (state)
+    {
+      case CCheckBox::CHECK_BOX_STATE_OFF: // Checkbox is unticked
+        message("CCheckBoxTest::showCheckBoxState Checkbox is in the unticked state\n");
+        break;
+
+      case CCheckBox::CHECK_BOX_STATE_ON:  // Checkbox is ticked
+        message("CCheckBoxTest::showCheckBoxState Check is in the ticked state\n");
+        break;
+
+      default:
+      case CCheckBox::CHECK_BOX_STATE_MU:  // Checkbox is in the third state
+        message("CCheckBoxTest::showCheckBoxState Checkbox is in the 3rd state\n");
+        break;
+    }
+}