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FSCTL_IS_VOLUME_OWNED_BYCSVFS IOCTL (winioctl.h)

Determines whether a volume is locked by CSVFS.

To perform this operation, call the DeviceIoControl function with the following parameters.

BOOL DeviceIoControl(
 (HANDLE) hDevice, // handle to device
 FSCTL_IS_VOLUME_OWNED_BYCSVFS, // dwIoControlCode
 NULL, // input buffer
 0, // size of input buffer
 (LPVOID) lpOutBuffer, // lpOutBuffer
 (DWORD) nOutBufferSize, // nOutBufferSize
 (LPDWORD) lpBytesReturned, // number of bytes returned
 (LPOVERLAPPED) lpOverlapped // OVERLAPPED structure
);

Remarks

If the volume is locked on behalf of CSVFS, the control code returns information that is sent to an NTFS volume. If the volume is locked (using FSCTL_LOCK_VOLUME) from a request that originates from CSVFS, then the CSV_IS_OWNED_BY_CSVFS structure's OwnedByCSVFS member has a value of TRUE.

Requirements

Requirement Value
Minimum supported client None supported
Minimum supported server Windows Server 2012 [desktop apps only]
Header winioctl.h (include Windows.h)

See also

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