public static int GetIndex(this IDXGIAdapter adapter)
{
if (adapter == null)
{
throw new ArgumentNullException(nameof(adapter));
}
using (var fac = DXGIFunctions.CreateDXGIFactory1())
{
var desc = adapter.GetDesc();
int i = 0;
do
{
if (fac.Object.EnumAdapters((uint)i, out var a).IsError)
#if DEBUG
{ throw new InvalidOperationException(); }
#else
{ return(-1); // wot?
}
#endif
var desca = a.GetDesc();
if (desca.AdapterLuid.luid == desc.AdapterLuid.luid)
{
return(i);
}
i++;
}while (true);
}
}
static void Main(string[] args)
{
using var factory = new IDXGIFactory();
var hr = dxgi.CreateDXGIFactory(ref factory.GetIID(), ref factory.NewPtr);
if (hr != 0)
{
throw new System.Runtime.InteropServices.COMException("CreateDXGIFactory", hr);
}
for (uint i = 0; ; ++i)
{
using var adapter = new IDXGIAdapter();
hr = factory.EnumAdapters(i, ref adapter.NewPtr);
if (hr != 0)
{
break;
}
DXGI_ADAPTER_DESC desc = default;
adapter.GetDesc(ref desc);
Console.WriteLine(desc.Description);
}
}
public static DXGI_ADAPTER_DESC GetDesc(this IDXGIAdapter adapter)
{
if (adapter == null)
{
throw new ArgumentNullException(nameof(adapter));
}
var desc = new DXGI_ADAPTER_DESC();
adapter.GetDesc(out desc).ThrowOnError();
return(desc);
}