AttemptLockDosList

Attempt to lock the DOS Lists for use (V36)

Locks the DOS device list in preparation to walk the list. If the list is 'busy' then this function will return NULL. See LockDosList() for more information.

flags

Flags stating which types of nodes you want to lock.

dlist

Pointer to the beginning of the list or NULL. Not a valid node!

In V36 through V39.23 dos.library, this would return NULL or 0x00000001 for failure. Fixed in V39.24 dos.library (after kickstart 39.106).

LockDosList(), UnLockDosList(), Forbid(), NextDosEntry()