Постоянная FIRST_MEDIA_KEY
Реализация
static const int FIRST_MEDIA_KEY = 166;
© 2012 the Dart project authors
Licensed under the BSD 3-Clause "New" or "Revised" License.
https://api.dart.dev/stable/2.18.5/dart-html/KeyCode/FIRST_MEDIA_KEY-constant.html
