small example using windows runtime library in iso c++

wrl.cpp

//#include <windows.web.http.h>

#include <windows.foundation.h> // ABI::Windows::Foundation::I*
#include <wrl/wrappers/corewrappers.h> //Microsoft::WRL::Wrappers
#include <wrl/client.h> // ComPtr

#include <stdexcept>

int main() {
	Microsoft::WRL::Wrappers::RoInitializeWrapper initialize(RO_INIT_MULTITHREADED);
	if (FAILED(initialize)) {
		throw std::runtime_error("Unable to initialize Windows Runtime.");
	}

	Microsoft::WRL::ComPtr<ABI::Windows::Foundation::IUriRuntimeClassFactory> uriFactory;
	HRESULT hr = ABI::Windows::Foundation::GetActivationFactory(Microsoft::WRL::Wrappers::HStringReference(RuntimeClass_Windows_Foundation_Uri).Get(), &uriFactory);
	if (FAILED(hr)) {
		throw std::runtime_error("Unable to get activation factory for uri factory.");
	}

	Microsoft::WRL::Wrappers::HString uriHString;
	hr = uriHString.Set(L"http://www.microsoft.com.");
	if (FAILED(hr)) {
		throw std::runtime_error("Unable to set uri string.");
	}

	Microsoft::WRL::ComPtr<ABI::Windows::Foundation::IUriRuntimeClass> uri;
	hr = uriFactory->CreateUri(uriHString.Get(), &uri);
	if (FAILED(hr)) {
		throw std::runtime_error("Unable to create uri.");
	}

	//auto client = ABI::Windows::Web::Http::HttpClient();
}