Test WinRT boxing/unboxing

TestWinRTBoxing.cpp

#include "pch.h"
#include <iostream>

#include <winrt/Windows.Devices.Input.h>
#include <winrt/Windows.UI.Xaml.h>
using namespace winrt;
using namespace winrt::Windows::Foundation;
using namespace winrt::Windows::UI::Xaml;

void printType(const IInspectable& ii) {
  if (ii.try_as<IReference<int32_t>>()) {
    std::cout << "int32\n";
  }
  else if (ii.try_as<IReference<uint32_t>>()) {
    std::cout << "uint32\n";
  }
  else if (ii.try_as<IReference<int16_t>>()) {
    std::cout << "int16\n";
  }
  else if (ii.try_as<IReference<uint16_t>>()) {
    std::cout << "uint16\n";
  }
  else if (ii.try_as<IReference<int8_t>>()) {
    std::cout << "int8\n";
  }
  else if (ii.try_as<IReference<uint8_t>>()) {
    std::cout << "uint8\n";
  }
  else if (ii.try_as<IReference<int64_t>>()) {
    std::cout << "int64\n";
  }
  else if (ii.try_as<IReference<uint64_t>>()) {
    std::cout << "uint64\n";
  }
  else if (ii.try_as<IReference<unsigned char>>()) {
    std::cout << "uchar\n";
  }
  else if (ii.try_as<IReference<bool>>()) {
    std::cout << "bool\n";
  }
  else if (ii.try_as<IReference<double>>()) {
    std::cout << "double\n";
  }
  else if (ii.try_as<IReference<hstring>>()) {
    std::cout << "string\n";
  }
  else {
    std::cout << "Unknown box!\n";
  }
}

int main()
{
  auto pdt = winrt::Windows::Devices::Input::PointerDeviceType::Pen;
  printType(box_value(pdt));

  auto ha = winrt::Windows::UI::Xaml::HorizontalAlignment::Right;
  printType(box_value(ha));

  auto at = ApplicationTheme::Light;
  printType(box_value(at));

  auto esm = ElementSoundMode::FocusOnly;
  printType(box_value(esm));
}