### - r -

- readOnly : IMedium
- recommendedHDD : IGuestOSType
- recommendedIOAPIC : IGuestOSType
- recommendedRAM : IGuestOSType
- recommendedVirtEx : IGuestOSType
- recommendedVRAM : IGuestOSType
- recompileSupervisor : IMachineDebugger
- recompileUser : IMachineDebugger
- remote : IUSBDevice , IUSBDeviceFilter
- remoteDisplayAuthLibrary : ISystemProperties
- remoteDisplayInfo : IConsole
- remoteUSBDevices : IConsole
- resultCode : IVirtualBoxErrorInfo , IProgress
- reuseSingleConnection : IVRDPServer
- revision : IVirtualBox , IUSBDeviceFilter , IUSBDevice