IStreamUnbufferedInfo::GetSectorSize method
Retrieves the number of bytes per sector on the disk currently being used. When using unbuffered input/output (I/O), it is important to know the size of the sectors on the disk being read in order to ensure proper byte alignment.
Syntax
HRESULT GetSectorSize( [out] ULONG *pcbSectorSize );
Parameters
- pcbSectorSize [out]
-
Type: ULONG*
When this method returns successfully, contains a pointer to a ULONG value that represents the number of bytes per sector for the disk.
Return value
Type: HRESULT
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Requirements
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Minimum supported client |
Windows Vista [desktop apps only] |
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Minimum supported server |
Windows Server 2008 [desktop apps only] |
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Header |
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IDL |
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