Use MidiKeyboardComponent to produce sound

Development
1

Hi, I am pretty new to JUCE. I´m doing an Audio Application Synth without using the synthesiser class. (I started in that way before to know about this class).
When I use whatever external Midi keyboard it is working, but now I want to add a MidiKeyboard Component to use the synth without an external keyboard.

At the moment, to produce the sound I use MidiInputCallback inside the Audio class, and there I set the note number into my mySynth class in this way:

Blockquote
void Audio::handleIncomingMidiMessage(MidiInput* source, const MidiMessage& message)
{
DBG(“Midi event…”);

if (message.isNoteOn())
{
      mySynth.setNote (message.getNoteNumber());                  
      stopGain = 1;
}
else 
{
    stopGain = 0;
}

Blockquote

Inside my mySynth class that Note Number is turned into frequency:

Blockquote

void MySynth::setNote(int newNote)
{
frequency = MidiMessage::getMidiNoteInHertz(newNote);
}

Blockquote

This frequency subsequently is transformed into phase increment and it produces the sound with the next code:

Blockquote
float Oscillator::nextSample()
{
auto out = renderWaveShape(phase);

phase += phaseIncrement;
if (phase > MathConstants<float>::twoPi)
	phase -= MathConstants<float>::twoPi;

return out;

}

Blockquote

To use the MidiKeyboard Component, I just need to get the note number from the keyboard component, in the same way I did before. I suppose that this is using “handleNoteOn/Off” instead of “handleIncomingMidiMessage”, so I have the next code

Blockquote
void Audio::handleNoteOn(juce::MidiKeyboardState*, int midiChannel, int midiNoteNumber, float velocity)
{

DBG("Midi Keyboard event...");
MidiMessage midiMessageFromKeyboard = juce::MidiMessage::noteOn(midiChannel, midiNoteNumber, velocity);
int noteNumberKeyboard = midiMessageFromKeyboard.getNoteNumber();

  mySynth.setNote(noteNumberKeyboard);

}

Blockquote

But it is not making any sound.
Also Audio.h inherited from MidiKeyboardStateListener and also in Audio.h I declared public MidiKeyboardState keyboardState;
It is public because in MainComponent I have the constructor of midiKeyboard Component in this way:

Blockquote
MainComponent::MainComponent(Audio& a) : audio(a), keyboardComponent(audio.keyboardState, juce::MidiKeyboardComponent::horizontalKeyboard)

Blockquote

Could someone say me why I cannot get the midi Note Number from the keyboard component and use it to set mySynth.setNote() in the same way that I did in handleIncomingMidiMessage?

Thanks