Method createContextMenu

src/MidiThing.cpp:604–616

		}

		virtual ui::Menu* createContextMenu() {
			ui::Menu* menu = createMenu();
			menu->addChild(createMenuLabel("MIDI driver"));
			for (int driverId : midi::getDriverIds()) {
				MidiDriverItem* item = new MidiDriverItem;
				item->port = port;
				item->driverId = driverId;
				item->text = midi::getDriver(driverId)->getName();
				item->rightText = CHECKMARK(item->driverId == port->driverId);
				menu->addChild(item);
			}
			return menu;
		}

		void step() override {
			text = port ? port->getDriver()->getName() : "";