Syntax Question

[Gripporillat]

Hi everybody!

Would someone please explain the ": Bounce..." part to me? I don't get it...

MIDIbutton::MIDIbutton(int p, byte num, byte mod) : Bounce(p, 10), Flicker(0, 0){
  pinMode(p, INPUT_PULLUP);
  inputType = 0; //button
  number = num;
  mode = mod; 
  state = false;
};

Thanks in advance!

 

[tonton81]

everything after the colon is a default initializer, in this case it’s instantiating a bounce object for that pin that will be used by the MIDIbutton class, of 10ms