Notes on Using This Function

  1. If your EHLLAPI application program is sending a series of transactions to the host, you might need to prevent the user from gaining access to that session until your application processing is complete.
  2. The keyboard input that a user makes while the keyboard is locked by this function is enqueued and processed after the session is terminated.
  3. This function locks both the mouse and the keyboard input. The application program must unlock the presentation space to enable either the mouse or the keyboard input.