demo1.cpp

#include <iostream>
#include "miniapp/miniapp.h"
using namespace miniapp;

int main()
try {
  Window w;

  w.on_paint = [](Canvas& canvas) {
    canvas.fill_rect(rgb(255, 255, 255), Rect(0, 0, 255, 255));
    canvas.fill_rect(rgb(0, 0, 255), Rect(32, 32, 100, 100));
  };

  w.show();

  App().run(w);
}
catch (const std::exception& e) {
  std::cout << e.what() << std::endl;
}