SameLock

returns whether two Locks are on the same object (V36)

Compares two Locks. Returns LOCK_SAME if they are on the same object, LOCK_SAME_VOLUME if on different objects on the same volume, and LOCK_DIFFERENT if they are on different volumes. Always compare for equality or non-equality with the results, in case new return values are added.

lock1

1st Lock for comparison

lock2

2nd Lock for comparison

value

LOCK_SAME, LOCK_SAME_VOLUME, or LOCK_DIFFERENT

Should do more extensive checks for NULL against a real Lock, checking to see if the real Lock is a Lock on the root of the boot volume.

In V36, it would return LOCK_SAME_VOLUME for different volumes on the same handler. Also, LOCK_SAME_VOLUME was LOCK_SAME_HANDLER (now an obsolete #define, see <dos/dos.h>).

<dos/dos.h>