Volume Lock Crack The Code

FSCTL_LOCK_VOLUME control code. Locks a volume if it is not in use. A locked volume can be accessed only through handles to the file object (*hDevice).

BOOL DeviceIoControl( (HANDLE) hDevice, // handle to a volume (DWORD) FSCTL_LOCK_VOLUME, // dwIoControlCode NULL, // lpInBuffer 0, // nInBufferSize NULL, // lpOutBuffer 0, // nOutBufferSize (LPDWORD) lpBytesReturned, // number of bytes returned (LPOVERLAPPED) lpOverlapped // OVERLAPPED structure ); Parameters hDevice A handle to the volume to be locked. To retrieve a device handle, call the function. DwIoControlCode The control code for the operation. Use FSCTL_LOCK_VOLUME for this operation. LpInBuffer Not used with this operation; set to NULL. NInBufferSize Not used with this operation; set to zero.

LpOutBuffer Not used with this operation; set to NULL. NOutBufferSize Not used with this operation; set to zero. LpBytesReturned A pointer to a variable that receives the size of the data stored in the output buffer, in bytes. If lpOverlapped is NULL, lpBytesReturned cannot be NULL. Even when an operation returns no output data and lpOutBuffer is NULL, makes use of lpBytesReturned. Ai no kusabi ao3. After such an operation, the value of lpBytesReturned is meaningless.

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If lpOverlapped is not NULL, lpBytesReturned can be NULL. If this parameter is not NULL and the operation returns data, lpBytesReturned is meaningless until the overlapped operation has completed. To retrieve the number of bytes returned, call. If hDevice is associated with an I/O completion port, you can retrieve the number of bytes returned by calling. LpOverlapped A pointer to an structure.

If hDevice was opened without specifying FILE_FLAG_OVERLAPPED, lpOverlapped is ignored. If hDevice was opened with the FILE_FLAG_OVERLAPPED flag, the operation is performed as an overlapped (asynchronous) operation. In this case, lpOverlapped must point to a valid structure that contains a handle to an event object. Otherwise, the function fails in unpredictable ways.

For overlapped operations, returns immediately, and the event object is signaled when the operation has been completed. Otherwise, the function does not return until the operation has been completed or an error occurs. Return value If the operation completes successfully, returns a nonzero value. If the operation fails or is pending, returns zero. To get extended error information, call. Remarks The hDevice handle passed to must be a handle to a volume, opened for direct access.

To retrieve this handle, call with the lpFileName parameter set to a string of the following form:. X: where X is a hard-drive partition letter, floppy disk drive, or CD-ROM drive. The application must also specify the FILE_SHARE_READ and FILE_SHARE_WRITE flags in the dwShareMode parameter of. If the specified volume is a system volume or contains a page file, the operation fails. If there are any open files on the volume, this operation will fail.

Conversely, success of this operation indicates there are no open files. This operation is useful for applications that need exclusive access to a volume for a period of time—for example, disk utility and backup programs. A locked volume remains locked until one of the following occurs: • The application uses the control code to unlock the volume. • The handle closes, either directly through, or indirectly when a process terminates.