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SetAttributes  
Method  		 Set the attributes of the specified file
File Class
System.IO NameSpace
NotCF1.  Procedure SetAttributes ( PathString:StringPathString : String; Attributes : FileAttributes; ) ; Static;
CF : Methods with this mark are Compact Framework Compatible
Description
The specified PathString defines a file whose attributes are set to the specified Attributes value.
 
The attributes may be a combination of the following :
 
ReadOnly The file is read-only.
Hidden The file is hidden, and thus is not included in an ordinary directory listing.
System The file is a system file. The file is part of the operating system or is used exclusively by the operating system.
Directory The file is a directory.
Archive The files archive status. Applications use this attribute to mark files for backup or removal.
Device Reserved for future use.
Normal The file is normal and has no other attributes set. This attribute is valid only if used alone.
Temporary The file is temporary. File systems attempt to keep all of the data in memory for quicker access rather than flushing the data back to mass storage. A temporary file should be deleted by the application as soon as it is no longer needed.
SparseFile The file is a sparse file. Sparse files are typically large files whose data are mostly zeros.
ReparsePoint The file contains a reparse point, which is a block of user-defined data associated with a file or a directory.
Compressed The file is compressed.
Offline The file is offline. The data of the file is not immediately available.
NotContentIndexed The file will not be indexed by the operating systems content indexing service.
Encrypted The file or directory is encrypted. For a file, this means that all data in the file is encrypted. For a directory, this means that encryption is the default for newly created files and directories.
Notes
Static methods are not methods of an object - they are simply class functions or procedures available at any time.
References
FileAttributes
Microsoft MSDN Links
System.IO
System.IO.File
 
  
Setting and getting file attributes
program Project1;
{$APPTYPE CONSOLE}

uses
  System.IO;

var
  Path   : String;
  Writer : StreamWriter;

begin
  // Create a text file
  Path := 'C:\DelphiBasics.txt';
  Writer := System.IO.File.CreateText(Path);

  // Close the file
  Writer.Close;

  // Set the file attributes
  System.IO.File.SetAttributes(Path,
                               System.IO.FileAttributes.ReadOnly or
                               System.IO.FileAttributes.Archive);

  // Show the file attributes
  Console.WriteLine(System.IO.File.GetAttributes(Path));

  // Set the file attributes to allow delete
  System.IO.File.SetAttributes(Path,
                               System.IO.FileAttributes.Normal);

  // Now delete this file
  System.IO.File.Delete(Path);

  Console.Readline;
end.
Show full unit code
  ReadOnly, Archive
 
 
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