SetFileSizeDirect Method

Resizes a file by passing the request directly to the filesystem.

Syntax

cbfilter.setFileSizeDirect(fileHandle, size, [callback])

Callback

The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).

The callback for this method is defined as:

function(err, data){ }

'err' is the error that occurred. If there was no error, then 'err' is 'null'.

'data' is the value returned by the method.

'err' has 2 properties which hold detailed information:

err.code
err.message

Remarks

Applications can call this method in filesystem-related event handlers to resize a file without sending the request through the filesystem filter driver stack. If the file is resized successfully, this method returns true; otherwise, it returns false.

The FileHandle parameter specifies the file that should be resized. The value passed for this parameter must be a file handle obtained from the CreateFileDirect method; please refer to its documentation for more information.

The Size parameter specifies the new file size, in bytes.

Note: This method can only be called within events.