How to determine if the terminal is a windows terminal

How to determine if the terminal is a windows terminal.

I want to enabled ANSI output in windows terminal and disenabled in CMD.

Is it possible to judge through environmental variables? like：

• ANSICON in https://github.com/adoxa/ansicon
• ConEmuANSI in https://conemu.github.io/en/ConEmuEnvironment.html

What is the best practice?