title: c# - how to disable hotkeys (except ctrl+alt+delete)
body: <p>I have a <strong>winform</strong> application and I'd like to disable some key combinations during the execution of this application. </p>
  
  <p>I want to disable all the key combinations (<code>Ctrl+Esc</code>, <code>Alt+Tab</code>, <code>WinKeys</code>, etc), except <code>Ctrl+Alt+Delete</code>.</p>
  
  <p>I use <code>c#</code> to program. </p>
  
  <p>Thank you.</p>