TBLT_RETC TBLT_ENTRY BltUnlockIx4File(TBLT_KH *khPtr); khPtr I:index file control structureThis routine unlocks the index file locked by
BltLockIx4File()
.
If this is the last full lock (.lockCount currently = 1) and the lock is not a shared
lock, this routine automatically calls BltIx4FlushHeader()
to update the index file header on disk.
Returns: Returns Non-zero indicates an error, otherwise the
entire index file is unlocked.