How to Fix ANSI Color Display Issues on Windows 10?

Ansi Colors on Windows 10: Resolving Display Issues

Windows 10 has introduced color support for consoles, allowing developers to utilize ANSI color codes to enhance their applications. However, some users have encountered issues with ANSI colors not rendering correctly, particularly after a specific Windows update.

Cause:

The problem arises due to a change in virtual terminal processing on Windows 10. By default, this processing is disabled, preventing the correct display of ANSI colors.

Solution:

To resolve this issue, virtual terminal processing must be enabled. This can be achieved by adding an init_windows.go file to your project. The code below, taken from the Github issue thread on the logrus library, sets the necessary virtual terminal processing mode:

<code class="go">// init_windows.go

package main

import (
    "os"

    "golang.org/x/sys/windows"
)

func init() {
    stdout := windows.Handle(os.Stdout.Fd())
    var originalMode uint32

    windows.GetConsoleMode(stdout, &originalMode)
    windows.SetConsoleMode(stdout, originalMode|windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING)
}</code>

By including this file in your project, you will ensure that virtual terminal processing is enabled, allowing for the proper display of ANSI colors in your console applications.

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