Unable to enter multi-byte characters in Windows console

[spica021]

I entered multi-byte characters directly in Windows Console.
But I can't get the correct byte data from stdin.

sample code:

import 'dart:io';

void main() async {
  await for (var i in stdin) {
    print(i);
  }
}

In Powershell 7(code page 65001),
I typed 'あ'(U+3042, utf-8: 0xE38182=[227 129 130]).

Direct input -- Bad:

> dart .\bin\main.dart
あ
[0, 13, 10]

Pipe -- OK:

> echo あ | dart .\bin\main.dart
[227, 129, 130, 13, 10]

I expected the results of direct input to be the same as the pipe version.

Dart VM version: 2.7.2 (Mon Mar 23 22:11:27 2020 +0100) on "windows_x64"
Windows 10 Pro(1909)
Powershell 7.0.0

[nmfisher]

Any update? This makes it impossible to type Chinese characters as console input to a Dart program.

[yanshouwang]

Any update? seems stdin now only work with Ascii characteristics

[imlinhanchao]

I have a same issue. holp to support.

[maxfrees]

Why hasn't it been solved for several years

[mraleph]

I have investigated it tldr here is that we should switch to using ReadConsoleW to read from stdin when we are attached to the terminal on Windows. All other methods don't work reliably with older terminal hosts like the one VSCode or PowerShell are using. Windows Terminal app does not have the same problem.

(see also #60133 (comment))

[laterdayi]

I have investigated it tldr here is that we should switch to using ReadConsoleW to read from stdin when we are attached to the terminal on Windows. All other methods don't work reliably with older terminal hosts like the one VSCode or PowerShell are using. Windows Terminal app does not have the same problem.

(see also #60133 (comment))

Thank you for your help. When can this problem be fixed