How to edit hidden files on windows?

[Lenny4]

Windows 10

Here is my code:

import 'dart:io';

void main(List<String> args) {
  File('C:\\Users\\alexa\\Documents\\test\\my-file.txt').writeAsString("some-text"); // got error if hidden, no error if not hidden
}

When I run this code on windows and the file is NOT hidden everything works nice.

But when I hide the file I got error:

Unhandled Exception: PathAccessException: Cannot open file, path = 'C:\Users\alexa\Documents\test\my-file.txt' (OS Error: Accès refusé.

, errno = 5)

Notice that when I run this code on an hidden file I get the data of the file:

import 'dart:io';

void main(List<String> args) {
  File('C:\\Users\\alexa\\Documents\\test\\my-file.txt').readAsStringSync(); // everything works fine here, even on hidden file
}

In both case the file was not in read only mode. He had only the +H attribute.

+R - Use the +R option to make a file read-only. Read-only files may be
read but they can`t be changed or deleted.

-R - Use the -R option to change the file protection attribute back to normal (so it can be read, changed, or deleted).

+A - Use the +A option to set the ARCHIVE attribute of a file. When the +A option is used, this flags the file as available for archiving
when using the BACKUP or XCOPY commands.

-A - Use the -A option to turn off the ARCHIVE attribute.

+H - With DOS Versions 4 through 6, use the +H option to set the HIDDEN attribute of a file so that it will not appear in a directory
listing.

-H - Use the -H option to turn off the HIDDEN attribute.

+S - With DOS Versions after Version 4, use the +S option to set the SYSTEM attribute of a file. When the +S option is used, this flags the
file as a command file used only by DOS. The file will not appear in a
directory listing. This attribute is generally reserved for
programmers.

-S - Use the -S option to turn off the SYSTEM attribute.

/S - Use the /S switch to set attributes on subdirectories found
within the specified path.

Why can't I edit an hidden file with dart ?

The solution I found is to create a hidden directory and put my file in this directory. So the file is not hidden but the directory is. This way I can edit the file.

[lrhn]

Seems to be a recurring issue on Windows, e.g. golang/go#25923