v7 man page for lock_variable

LOCK_VARIABLE(3alleg4)						  Allegro manual					    LOCK_VARIABLE(3alleg4)

NAME

       LOCK_VARIABLE - Locks the memory of a variable used by a timer. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       Macro LOCK_VARIABLE(variable_name);

DESCRIPTION

       Due  to interrupts, you are required to lock all the memory used by your timer routines. See the description of install_int_ex() for a more
       detailed explanation and usage example.

SEE ALSO

       install_int(3alleg4), install_int_ex(3alleg4), exscn3d(3alleg4), exsprite(3alleg4), exswitch(3alleg4), extimer(3alleg4), exupdate(3alleg4),
       exzbuf(3alleg4)

Allegro 							   version 4.4.2					    LOCK_VARIABLE(3alleg4)