我如何知道注册表中有关 DirectX 的 GPU 值？

Question

Regedit Directx informations

我找到了这个寄存器，我需要知道如何转换这些项目并获取实际值：

驱动程序版本
上次上线
MaxD3D11FeatureLevel
MaxD3D12FeatureLevel
共享系统内存
UDMVersion

我是用这个取值的，但是不知道转换后的真实值。

public void CheckDirectx()
    {
        RegistryKey registerKey;
        string description = string.Empty;
        long driverVersion = -1;
        long lastSeen = -1;
        int d11FeatureLevel = -1;
        int d12FeatureLevel = -1;
        long umdVersion = -1;
        try
        {
            registerKey = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\DirectX\{AA4CC8A5-889A-11E9-B1F8-1062E5C8AC0E}");

            description = registerKey.GetValue("Description") as string;
            driverVersion = (long)registerKey.GetValue("DriverVersion");
            lastSeen = (long)registerKey.GetValue("LastSeen");
            d11FeatureLevel = (int)registerKey.GetValue("MaxD3D11FeatureLevel");
            d12FeatureLevel = (int)registerKey.GetValue("MaxD3D12FeatureLevel");
            umdVersion = (long)registerKey.GetValue("UMDVersion");

        }catch (IOException e)
        {
            Console.WriteLine("{0}: {1}",e.GetType().Name, e.Message);
            return;
        }
        finally
        {
            Console.WriteLine("{0}", description);
            Console.WriteLine("{0}", lastSeen);
            Console.WriteLine("{0}", d11FeatureLevel);
            Console.WriteLine("{0}", d12FeatureLevel);
            Console.WriteLine("{0}", umdVersion);
        }
    }

Answer 1

这些值中的大部分都可以使用 DXGI 接口（DXGI_ADAPTER_DESC1 结构和其他）读取，并且是 LARGE_INTEGER.

根据样本中的值，您可以像这样转换它们（我昨天为您的 LastSeen 日期）：

LARGE_INTEGER nDriverVersion;
nDriverVersion.QuadPart = 0x190015000e0768LL;   
WORD nProduct = HIWORD(nDriverVersion.HighPart);
WORD nVersion = LOWORD(nDriverVersion.HighPart);
WORD nSubVersion = HIWORD(nDriverVersion.LowPart);
WORD nBuild = LOWORD(nDriverVersion.LowPart);

LARGE_INTEGER nLastSeen;
nLastSeen.QuadPart = 0x1D51F80F1EA7FB1LL;
FILETIME ft;
ft.dwLowDateTime = nLastSeen.LowPart;
ft.dwHighDateTime = nLastSeen.HighPart;
SYSTEMTIME st;
FileTimeToSystemTime(&ft, &st);

我如何知道注册表中有关 DirectX 的 GPU 值？

How can I know the GPU values about DirectX in regedit?

c#

windows

gpu

directx

regedit