Function requestWebMidiInput

requestWebMidiInput(synth: MidiSynth): Promise<WebMidiConnection | null>
Asks the browser for Web MIDI and wires it to synth: null where the browser has no Web MIDI (or the player refused it), so a game offers the live keyboard only where it can exist. System-exclusive is requested, since a bank dump arrives as sysex; a refusal of sysex alone still connects, without it.
Parameters
- synth: MidiSynth
Returns Promise<WebMidiConnection | null>
Example
```
import { requestWebMidiInput, type MidiSynth } from '@datamoc/mwg/audio';

declare const synth: MidiSynth;

const link = await requestWebMidiInput(synth);
console.log(link === null ? 'no live input here' : `${link.ports} port(s) live`);
```
- Defined in src/audio/WebMidi.ts:80