three_finger_flag - Flag to deactivate the emergency exit key combination.
Allegro game programming library.
extern int three_finger_flag;
The DJGPP keyboard handler provides an 'emergency exit' sequence which you can
use to kill off your program. If you are running under DOS this is the three
finger salute, ctrl+alt+del. Most multitasking OS's will trap this combination
before it reaches the Allegro handler, in which case you can use the
alternative ctrl+alt+end. If you want to disable this behaviour in release
versions of your program, set this flag to FALSE.