vMix doesn't work with one button midi

Other Hardware Audio
1

Hi all!

I have Arduino UNO and this sketch:

#include <Control_Surface.h> // Include the Control Surface library

// Instantiate a MIDI over USB interface.
USBMIDI_Interface midi;

using namespace MIDI_Notes;

// Instantiate a NoteButton object
NoteButton button = {
8, // Push button on pin 8
{note(C, 4), CHANNEL_1}, // Note C4 on MIDI channel 1
};

void setup() {
Control_Surface.begin(); // Initialize Control Surface
}

void loop() {
Control_Surface.loop(); // Update the Control Surface
}

After upload i added in LoopMIDI new midi port, and in Hairless MIDI i see it.
When i starting vMix i see my midi in Settings -> shortcuts -> MIDI settings. But when i try to add new shortcut (click "find" and pressing button) nothing happens.
In ableton Live similar story.

Plz, help. Which way to look?

2

This isn't the right interface to use for Hairless. See Control Surface: MIDI over USB and Control Surface: HairlessMIDI_Interface Class Reference.

3

In example uses that interface.
I using Hairless just for check that MIDI signals is good.
I'm not right?

4

Ok, i find where i wrong
Thank you very much!