SFML 2.4.2

### - r -

- R : sf::Joystick , sf::Keyboard
- RAlt : sf::Keyboard
- RangeNotSatisfiable : sf::Http::Response
- RBracket : sf::Keyboard
- RControl : sf::Keyboard
- Regular : sf::Text
- ResetContent : sf::Http::Response
- Resized : sf::Event
- RestartMarkerReply : sf::Ftp::Response
- Return : sf::Keyboard
- ReverseSubtract : sf::BlendMode
- Right : sf::Keyboard , sf::Mouse
- RShift : sf::Keyboard
- RSystem : sf::Keyboard