GObject ├── BtIcControl │ ├── BtIcAbsRangeControl │ ╰── BtIcTriggerControl ├── BtIcDevice │ ├── BtIcInputDevice │ ╰── BtIcMidiDevice ├── BtIcGudevDiscoverer ╰── BtIcRegistry GInterface ╰── BtIcLearn