title: winforms keydown event not working
body: <p>How can i handle winforms keydown event? </p>
  
  <p>Actually i tried like this</p>
  
  <pre><code>private void test_KeyDown(object sender, KeyEventArgs e)
      {
          if (e.KeyCode == Keys.Escape)
          {
              test2 tst2 = new test2();
              tst2.Show();
          }
      }
  </code></pre>
  
  <p>but it is working only one time. What is the problem?</p>