title: How to write "if textbox is empty" in Visual C++
body: <p>I'm writing a program in Visual C++ and I need to test if a TextBox is empty. For example (in pseudo-code):</p>
  
  <pre><code>if ( textBox is empty ) { 
     // etc..
  }
  </code></pre>
  
  <p>How can I test for this condition?</p>