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◆ LockRegion()
virtual HRESULT STDMETHODCALLTYPE LockRegion |
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ULARGE_INTEGER |
libOffset, |
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ULARGE_INTEGER |
cb, |
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DWORD |
dwLockType |
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overridevirtual |
The method restricts access to a specified range of bytes in the stream. Supporting this functionality is optional since some file systems do not provide it.
- Parameters
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libOffset | Integer that specifies the byte offset for the beginning of the range. |
cb | Integer that specifies the length of the range, in bytes, to be restricted. |
dwLockType | Specifies the restrictions being requested on accessing the range. |
- Returns
S_OK if operation completed with success.
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