#include <Arduino.h>

HWND EMU = 0;
void init() { EMU = FindWindowA("TApplication", "EMU"); }
void pin_toggle(int pin) { SendMessage(EMU, WM_USER, pin, 2); } // send to Delphi Application

void setup()
{
  init();
  Serial.begin(0);
  Serial.println("[APP] TOGGLE TEST");
}

void loop()
{
  for (int i = 0; i < 3; i++)
  {
    pin_toggle(i);
    delay(1000);
  }
  Serial.println("[APP] Toggle leds");
}