C#

// Store the current TextWriter
System.IO.TextWriter tw = System.Console.Out ;
 
// Create a new TextWriter
System.IO.StringWriter sw = new System.IO.StringWriter() ;
 
// and use it as System.Console.Out 
System.Console.SetOut ( sw ) ;
 
// Call the method

// Revert to the previous value of System.Console.Out 
System.Console.SetOut ( tw ) ;
 
// Close the TextWriter
sw.Close() ;
 
// Do what you like with the captured text
System.Console.WriteLine ( sw.ToString() ) ;