Helper for native threadpool use

QueueBackgroundWork.cpp

#include <Windows.h>

#include <functional>
#include <memory>
#include <system_error>

void CALLBACK InvokeFunction(PTP_CALLBACK_INSTANCE, void* context, PTP_WORK)
{
    std::unique_ptr<std::function<void()>> owned{ static_cast<std::function<void()>*>(context) };
    (*owned)();
}

void QueueBackgroundWork(std::function<void()> func)
{
    auto ptr = std::make_unique<std::function<void()>>(std::move(func));
    auto work = CreateThreadpoolWork(InvokeFunction, ptr.get(), nullptr);
    if (work == nullptr)
    {
        auto lastErr = GetLastError();
        throw std::system_error{ static_cast<int>(lastErr), std::system_category() };
    }
    else
    {
        ptr.release();
    }

    SubmitThreadpoolWork(work);
    CloseThreadpoolWork(work);
}

#include <iostream>
#include <thread>

int main()
{

    QueueBackgroundWork([]() { std::cout << "hello from background thread" << std::endl; });

    std::this_thread::sleep_for(std::chrono::seconds(1));

    return 0;
}