Indicates whether or not user input is expected before continuing.
If the flag is set, processing will continue when user input is
entered.
The nature of the User input is determined by the application
(Carriage Return, Mouse Button Click, etc.).
Values : 0 - User input is not expected.
1 - User input is expected.
When a Delay Time is used and the User Input Flag is set,
processing will continue when user input is received or when the
delay time expires, whichever occurs first.
Declaration Syntax