FSCTL_QUERY_FILE_SYSTEM_RECOGNITION IOCTL

Description

Queries for file system recognition information on a volume.

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

BOOL DeviceIoControl(
  (HANDLE) hDevice,                     // handle to volume
  FSCTL_QUERY_FILE_SYSTEM_RECOGNITION,  // dwIoControlCode
  NULL,                                 // lpInBuffer
  0,                                    // nInBufferSize
  (LPVOID) lpOutBuffer,                 // output buffer
  (DWORD) nOutBufferSize,               // size of output buffer
  (LPDWORD) lpBytesReturned,            // number of bytes returned
  (LPOVERLAPPED) lpOverlapped           // OVERLAPPED structure
);

Parameters

Input buffer

Input buffer length

Output buffer

Output buffer length

Input/output buffer

Input/output buffer length

Status block

Irp->IoStatus.Status is set to STATUS_SUCCESS if the request is successful.

Otherwise, Status to the appropriate error condition as a NTSTATUS code.

For more information, see NTSTATUS Values.

Remarks

In Windows 8 and Windows Server 2012, this code is supported by the following technologies.

See also

• DeviceIoControl
• FILE_SYSTEM_RECOGNITION_INFORMATION
• FILE_SYSTEM_RECOGNITION_STRUCTURE
• File System Recognition