| Description |
Assigns the Error property to NewWriter, allowing a different target for error data from a Console application.
As in the example, this can be used to write to a text file instead.
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| | Notes | Static methods are not methods of an object - they are simply class functions or procedures available at any time.
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| Microsoft MSDN Links |
System
System.Console
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| A simple example |
program Project1;
{$APPTYPE CONSOLE}
uses
System.IO;
var
fileName : String;
reader : TextReader;
writer : TextWriter;
errWriter : Stream;
begin
// Create a test text file
fileName := 'C:DelphiBasics.txt';
if not System.IO.File.Exists(fileName)
then System.IO.File.CreateText(fileName);
// Open the file
writer := StreamWriter.Create(fileName);
// Assign the Console Error stream to this file
Console.SetError(writer);
// Get the standard error stream writer
// (There are no methods for directly writing to the error stream,
// unlike WriteLine to the output stream)
errWriter := Console.OpenStandardError;
// Write to the standard error stream
errWriter.Write([Ord('H'), Ord('e'), Ord('l'),
Ord('l'), Ord('o')], 0, 5);
// Close the file
writer.Close;
// Read from the file
reader := StreamReader.Create(fileName);
Console.WriteLine(reader.ReadLine);
Console.ReadLine;
end.
| | Show full unit code | Hello
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