| Description |
The attributes of the specified PathString file are returned.
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. |
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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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| | References | FileAttributes
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| Microsoft MSDN Links |
System.IO
System.IO.File
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| A simple example |
// Full Unit code.
// -------------------------------------------------------------
// Create a new WinForm application, double click the form to
// create an OnLoad event, and then replace the WinForm unit
// with this text.
unit WinForm;
interface
uses
System.Drawing, System.Collections, System.ComponentModel,
System.Windows.Forms, System.Data;
type
TWinForm = class(System.Windows.Forms.Form)
\{REGION 'Designer Managed Code'\} // Note that REGION and ENREGION should be prefixed by a dollar sign
strict private
///
/// Required designer variable.
///
Components: System.ComponentModel.Container;
///
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///
procedure InitializeComponent;
procedure TWinForm_Load(sender: System.Object; e: System.EventArgs);
{ENDREGION}
strict protected
///
/// Clean up any resources being used.
///
procedure Dispose(Disposing: Boolean); override;
private
{ Private Declarations }
public
constructor Create;
end;
[assembly: RuntimeRequiredAttribute(TypeOf(TWinForm))]
implementation
\{REGION 'Windows Form Designer generated code'\}
///
/// Required method for Designer support -- do not modify
/// the contents of this method with the code editor.
///
procedure TWinForm.InitializeComponent;
begin
//
// TWinForm
//
Self.AutoScaleBaseSize := System.Drawing.Size.Create(5, 13);
Self.ClientSize := System.Drawing.Size.Create(292, 266);
Self.Name := 'TWinForm';
Self.Text := 'WinForm';
Include(Self.Load, Self.TWinForm_Load);
end;
{ENDREGION}
procedure TWinForm.Dispose(Disposing: Boolean);
begin
if Disposing then
begin
if Components <> nil then
Components.Dispose();
end;
inherited Dispose(Disposing);
end;
constructor TWinForm.Create;
begin
inherited Create;
//
// Required for Windows Form Designer support
//
InitializeComponent;
//
// TODO: Add any constructor code after InitializeComponent call
//
end;
procedure TWinForm.TWinForm_Load(sender: System.Object; e: System.EventArgs);
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.
end. | | Hide full unit code | ReadOnly, Archive
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