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FSCTL_MOVE_FILE

The FSCTL_MOVE_FILE control code relocates one or more virtual clusters of a file from one logical cluster to another within the same volume. This operation is used during defragmentation.

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

Код


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

Parameters

hDevice
[in] Handle to the volume that contains the file or directory whose clusters are to be moved. To retrieve a device handle, call the CreateFile function. Only administrators can open volume handles.

Encrypted files must be opened with the FILE_READ_DATA, FILE_WRITE_DATA, FILE_APPEND_DATA, or FILE_EXECUTE access right. Other files need only be opened with the FILE_READ_ATTRIBUTES access right. For more information, see File Security and Access Rights.

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