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## (FileOperations) - UnbufferedFileStream : FileStream, IDisposable

(ctor) UnbufferedFileStream( SafeFileHandle fileHandle, FileAccess access, int bufferSize, bool isAsync )
virtual IAsyncResult BeginWrite( byte[] array, int offset, int numBytes, AsyncCallback userCallback, object stateObject )
virtual void Dispose( bool disposing )
virtual void Write( byte[] array, int offset, int count )