### - u -

- uninitialize() : IInternalSessionControl
- unlock() : IFramebuffer
- unlockFramebuffer() : IDisplay
- unlockRead() : IMedium
- unlockWrite() : IMedium
- unmount() : IDVDDrive , IFloppyDrive
- unregisterCallback() : IVirtualBox , IConsole
- unregisterMachine() : IVirtualBox
- updateCompleted() : IDisplay
- updateMachineState() : IInternalSessionControl
- updateState() : IInternalMachineControl