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diff --git a/NxWidgets/UnitTests/CTextBox/ctextboxtest.cxx b/NxWidgets/UnitTests/CTextBox/ctextboxtest.cxx
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+++ b/NxWidgets/UnitTests/CTextBox/ctextboxtest.cxx
@@ -0,0 +1,287 @@
+/////////////////////////////////////////////////////////////////////////////
+// NxWidgets/UnitTests/CTextBox/ctextboxtest.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 <unistd.h>
+#include <debug.h>
+
+#include <nuttx/nx/nx.h>
+#include <nuttx/nx/nxfonts.h>
+
+#include "nxconfig.hxx"
+#include "ctextboxtest.hxx"
+#include "cbgwindow.hxx"
+
+/////////////////////////////////////////////////////////////////////////////
+// Definitions
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Private Classes
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Private Data
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Public Data
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Public Function Prototypes
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// CTextBoxTest Method Implementations
+/////////////////////////////////////////////////////////////////////////////
+
+// CTextBoxTest Constructor
+
+CTextBoxTest::CTextBoxTest()
+{
+  m_bgWindow = (CBgWindow *)NULL;
+  m_nxFont   = (CNxFont *)NULL;
+  m_text     = (CNxString *)NULL;
+}
+
+// CTextBoxTest Descriptor
+
+CTextBoxTest::~CTextBoxTest()
+{
+  disconnect();
+}
+
+// Connect to the NX server
+
+bool CTextBoxTest::connect(void)
+{
+  // Connect to the server
+
+  bool nxConnected = CNxServer::connect();
+  if (nxConnected)
+    {
+      // Create the default font instance
+
+      m_nxFont = new CNxFont(NXFONT_DEFAULT,
+                            CONFIG_NXWIDGETS_DEFAULT_FONTCOLOR,
+                            CONFIG_NXWIDGETS_TRANSPARENT_COLOR);
+      if (!m_nxFont)
+        {
+          printf("CTextBoxTest::connect: Failed to create the default font\n");
+        }
+
+      // Set the background color
+
+      if (!setBackgroundColor(CONFIG_CTEXTBOXTEST_BGCOLOR))
+        {
+          printf("CTextBoxTest::connect: setBackgroundColor failed\n");
+        }
+    }
+
+  return nxConnected;
+}
+
+// Disconnect from the NX server
+
+void CTextBoxTest::disconnect(void)
+{
+  // Close the window
+
+  if (m_bgWindow)
+    {
+      delete m_bgWindow;
+    }
+
+  // Free the display string
+
+  if (m_text)
+    {
+      delete m_text;
+      m_text = (CNxString *)NULL;
+    }
+
+  // Free the default font
+
+  if (m_nxFont)
+    {
+      delete m_nxFont;
+      m_nxFont = (CNxFont *)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 CTextBoxTest::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)
+    {
+      printf("CTextBoxTest::createGraphics: Failed to create CBgWindow instance\n");
+      delete m_widgetControl;
+      return false;
+    }
+
+  // Open (and initialize) the window
+
+  bool success = m_bgWindow->open();
+  if (!success)
+    {
+      printf("CTextBoxTest::createGraphics: Failed to open background window\n");
+      delete m_bgWindow;
+      m_bgWindow = (CBgWindow*)0;
+      return false;
+    }
+
+  return true;
+}
+
+// Create a CTextBox instance
+
+CTextBox *CTextBoxTest::createTextBox(void)
+{
+  // Get the width of the display
+
+  struct nxgl_size_s windowSize;
+  if (!m_bgWindow->getSize(&windowSize))
+    {
+      printf("CTextBoxTest::createGraphics: Failed to get window size\n");
+      return (CTextBox *)NULL;
+    }
+
+  // Create an empty CNxString instance to contain the C string
+
+  m_text = new CNxString();
+
+  // Get the height and width of the text display area.  The width
+  // is half of the display width and the height is optimized for
+  // the font height
+
+  nxgl_coord_t textBoxWidth =  windowSize.w >> 1;
+  nxgl_coord_t textBoxHeight = (nxgl_coord_t)m_nxFont->getHeight();
+
+  // The default CTextBox has borders enabled with thickness of one.
+  // Add twice the thickness of the border to the height.
+
+  textBoxHeight += 2 * 1;
+
+  // Pick an X/Y position such that the label will be centered in the display
+
+  nxgl_coord_t labelX = windowSize.w >> 2;
+  nxgl_coord_t labelY = (windowSize.h - textBoxHeight) >> 1;
+
+  // Now we have enough information to create the label
+
+  return new CTextBox(m_widgetControl, labelX, labelY, textBoxWidth, textBoxHeight, *m_text);
+}
+
+// Draw the label
+
+void CTextBoxTest::showTextBox(CTextBox *label)
+{
+  label->enable();
+  label->enableDrawing();
+  label->redraw();
+}
+
+// Inject simulated keyboard characters into NX.
+
+void CTextBoxTest::injectChars(CTextBox *textbox, int nCh, FAR const uint8_t *string)
+{
+  // nx_kbdin is meant to be called by keyboard handling software.
+  // Here we just inject the string under unit test control.
+
+  // 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 keyboard interface
+
+  NXHANDLE handle = getServer();
+
+  // The widget must have focus to receive keyboard input
+
+  m_widgetControl->setFocusedWidget(textbox);
+
+  // Inject the string one character at a time to get a more realistic
+  // simulation of keyboard behavior.  Note the API nx_kbdin() could
+  // be used to inject the string in its entirety.
+
+  for (int i = 0; i < nCh; i++)
+    {
+      // Inject the next character
+
+      (void)nx_kbdchin(handle, string[i]);
+
+      // Widget events are normally handled in a modal loop (by calling goModal()).
+      // However, for this case we know when there should be keyboard events pending,
+      // events so we don't have to poll repeatedly.  We can just perform a one pass
+      // poll
+
+      m_widgetControl->pollEvents(textbox);
+
+      // Sleep a bit, just for the effect (this also gives the X server loop a
+      // chance to run in the simulated environment.
+
+      usleep(500*1000);
+    }
+}