- o -
- opacity() : KWinInternal::Client
- opacityPercentage() : KWinInternal::Client
- operationTitlebarDblClick() : KWinInternal::Options
- operationTitlebarMouseWheel() : KWinInternal::Options
- operationWindowMouseWheel() : KWinInternal::Options
- operator==() : KWinInternal::SystemTrayWindow
- Options() : KWinInternal::Options