UnhandledErrorDetected.cpp

#include <windows.h>
#include "winrt/Windows.ApplicationModel.Core.h"
#include "winrt/Windows.UI.Core.h"

using namespace winrt;
using namespace Windows::ApplicationModel::Core;
using namespace Windows::UI::Core;

struct App : implements<App, IFrameworkViewSource, IFrameworkView>
{
    IFrameworkView CreateView()
    {
        return *this;
    }

    void Initialize(CoreApplicationView const&)
    {
    }

    void Load(hstring const&)
    {
    }

    void Uninitialize()
    {
    }

    void Run()
    {
        CoreWindow window = CoreWindow::GetForCurrentThread();
        window.Activate();

        CoreDispatcher dispatcher = window.Dispatcher();
        dispatcher.ProcessEvents(CoreProcessEventsOption::ProcessUntilQuit);
    }

    void SetWindow(CoreWindow const& window)
    {
        window.PointerPressed([&](auto&&...)
        {
            throw hresult_invalid_argument(L"Don't touch me!");
        });
    }
};

int __stdcall wWinMain(HINSTANCE, HINSTANCE, PWSTR, int)
{
    CoreApplication::UnhandledErrorDetected([](auto&&, auto&& args)
    {
        if (!args.UnhandledError().Handled())
        {
            try
            {
                args.UnhandledError().Propagate();
            }
            catch (hresult_error const& e)
            {
                auto message = e.message();
                OutputDebugString(message.c_str());
            }
        }
    });

    CoreApplication::Run(make<App>());
}