Folder ReadOnly, Hidden, Normal

[Henry Olive 5]

Good Day

 

I asked a similiar question while ago

According to that replies i made below proc

In my proc HIDDEN  and NORMAL works

but READONLY doesnt work even though i dont get any err.msg.

what am i doing wrong ?

 

Thank You

 

procedure TFolders.RG1Click(Sender: TObject);
  var
  Attr : TFileAttributes;
  FolderPath : String;
begin
  FolderPath:= CDS1FOLDERPATH.AsString;
  Attr:= TPath.GetAttributes(PChar(FolderPath));

 

  if not TDirectory.Exists(FolderPath) then
  begin
     ShowMessage(FolderPath + '  not Exist');
     Abort;

  end;

 

  if RG1.ItemIndex = 0 then  // Read Only - RG1 = Radio Group
     SetFileAttributes(PChar(FolderPath), FILE_ATTRIBUTE_READONLY) else

 

  if RG1.ItemIndex = 1 then  // Hidden
     SetFileAttributes(PChar(FolderPath), FILE_ATTRIBUTE_HIDDEN) else

 

  if RG1.ItemIndex = 2 then // Open (Not Read Only - Not Hidden)
     SetFileAttributes(PChar(FolderPath), FILE_ATTRIBUTE_NORMAL);
end;

 

 

 

 

[Remy Lebeau 1429]

7 hours ago, Henry Olive said:

what am i doing wrong ?

Nothing. ReadOnly has no meaning for a folder and is ignored. This is documented behavior:

 

https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-setfileattributesw

Quote

FILE_ATTRIBUTE_READONLY
1 (0x1)

 

... This attribute is not honored on directories...

Making a folder read-only is an illusion. When you do it in Explorer, it iterates the folder's files and updates them accordingly. You can't change the attribute on the folder itself. Doing so is reserved by Windows for its private use on system folders.

 

You cannot view or change the Read-only or the System attributes of folders in Windows Server 2003, in Windows XP, in Windows Vista or in Windows 7

Edited 12 hours ago by Remy Lebeau

[Henry Olive 5]

Thank you so much Remy