用于获取HDR(高动态范围)是否处于活动状态的Windows API

#include <dxgi1_6.h>
#include <wrl.h>
#include <iostream>

using Microsoft::WRL::ComPtr;

bool IsHDRAvailable()
{
    ComPtr<IDXGIFactory4> factory;
    HRESULT hr = CreateDXGIFactory2(0, IID_PPV_ARGS(&factory));
    if (FAILED(hr))
    {
        std::cerr << "Failed to create DXGI factory." << std::endl;
        return false;
    }

    ComPtr<IDXGIOutput> output;
    hr = factory->EnumAdapters(0, &output);
    if (FAILED(hr))
    {
        std::cerr << "Failed to enumerate DXGI output." << std::endl;
        return false;
    }

    DXGI_OUTPUT_DESC desc;
    output->GetDesc(&desc);

    if (desc.Flags & DXGI_OUTPUT_FLAG_HIGH_DYNAMIC_RANGE)
    {
        return true;
    }

    return false;
}

bool IsHDRActive()
{
    ComPtr<IDXGIFactory4> factory;
    HRESULT hr = CreateDXGIFactory2(0, IID_PPV_ARGS(&factory));
    if (FAILED(hr))
    {
        std::cerr << "Failed to create DXGI factory." << std::endl;
        return false;
    }

    ComPtr<IDXGIOutput> output;
    hr = factory->EnumAdapters(0, &output);
    if (FAILED(hr))
    {
        std::cerr << "Failed to enumerate DXGI output." << std::endl;
        return false;
    }

    ComPtr<IDXGIOutput6> output6;
    hr = output.As(&output6);
    if (FAILED(hr))
    {
        std::cerr << "Failed to query IDXGIOutput6 interface." << std::endl;
        return false;
    }

    DXGI_OUTPUT_METADATA_HDR10 hdr10;
    hr = output6->GetMetadataHDR10(&hdr10);
    if (SUCCEEDED(hr))
    {
        return true;
    }

    return false;
}

int main()
{
    if (IsHDRAvailable())
    {
        std::cout << "HDR is available." << std::endl;
        if (IsHDRActive())
        {
            std::cout << "HDR is active." << std::endl;
        }
        else
        {
            std::cout << "HDR is not active." << std::endl;
        }
    }
    else
    {
        std::cout << "HDR is not available." << std::endl;
    }

    return 0;
}