Removes the access restriction on a range of bytes previously restricted with IStream::LockRegion
| ULARGE_INTEGER libOffset,
||//Specifies the byte offset for the beginning of the range
| ULARGE_INTEGER cb,
||//Specifies the length of the range in bytes
| DWORD dwLockType
||//Specifies the access restriction previously placed on the range
[in]Specifies the byte offset for the beginning of the range.
[in]Specifies, in bytes, the length of the range to be restricted.
[in]Specifies the access restrictions previously placed on the range.
The byte range was unlocked.
Locking is not supported at all or the specific type of lock requested is not
The requested unlock cannot be granted.
This method unlocks a region previously locked with the IStream::LockRegion
method. Locked regions must later be explicitly unlocked by calling IStream::UnlockRegion
with exactly the same values for the libOffset
, and dwLockTyp
e parameters. The region must be unlocked before the stream is released. Two
adjacent regions cannot be locked separately and then unlocked with a single
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