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LOCK_VARIABLE(3)                Allegro manual                LOCK_VARIABLE(3)

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

Allegro                          version 4.4.2                LOCK_VARIABLE(3)