title: XNA: My richtextbox is invisible when fullscreen is toggled
body: <p>I have added a richtextbox in XNA but it is invisible when fullscreen is toggled</p>
  
  <p>This is my code:</p>
  
  <pre><code>    RichTextBox richTextBox1 = new RichTextBox();
      public Engine()
      {
          graphics = new GraphicsDeviceManager(this);
          Content.RootDirectory = "Content";
          this.IsMouseVisible = false;
          graphics.PreferredBackBufferWidth = 1280;
          graphics.PreferredBackBufferHeight = 720;
          graphics.IsFullScreen = true;
      }
  
      protected override void Initialize()
      {
          richTextBox1.Location = new System.Drawing.Point(100, 100);
          richTextBox1.Name = "richTextBox1";
  
          richTextBox1.Size = new System.Drawing.Size(100, 100);
          richTextBox1.TabIndex = 0;
          richTextBox1.Text = "";
          Control.FromHandle(Window.Handle).Controls.Add(richTextBox1);
      }
  </code></pre>
  
  <p>The code above is working fine if graphics.IsFullScren is set to false</p>