Notes on Using This Function
- 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.
- The keyboard input that a user makes while the keyboard is locked
by this function is enqueued and processed after the session is terminated.
- 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.