How to use the values return by the MediaFactory.MFTEnumEx ?

[raphael-work]

Hello,
I'm currently using the package Vortice.MediaFoundation v3.6.2 and I would like to use the [out] arguments of the method MediaFactory.MFTEnumEx.
It looks like the pppMFTActivate and pnumMFTActivate are the required ones values to instantiate a IMFActivateCollection.
Unfortunatly the constructor is internal so it's unable to use it.

Does anyone know if there is a workaround?

The code below describe the issue

using SharpGen.Runtime;
using Vortice.MediaFoundation;

namespace TestMFTEnumEx
{
    internal class Test
    {
        public static bool Execute()
        {
            Result result = MediaFactory.MFStartup(true);
            if (result != Result.Ok)
            {
                return false;
            }

            Guid guidFactory = TransformCategoryGuids.VideoProcessor;
            uint flagsMFT = (uint)(EnumFlag.EnumFlagSyncmft | EnumFlag.EnumFlagLocalmft | EnumFlag.EnumFlagSortandfilter | EnumFlag.EnumFlagHardware);
            RegisterTypeInfo? inputRegisterType = null;
            RegisterTypeInfo? outputRegisterType = null;
            nint pppMFTActivate;
            uint pnumMFTActivate;

            MediaFactory.MFTEnumEx(guidFactory, flagsMFT, inputRegisterType, outputRegisterType, out pppMFTActivate, out pnumMFTActivate);
            // The constructor of IMFActivateCollection is internal.
            IMFActivateCollection activateCollection = null; // = new IMFActivateCollection(pppMFTActivate, pnumMFTActivate);

            result = MediaFactory.MFShutdown();
            return result == Result.Ok;
        }
    }
}

[raphael-work]

This PR #487 propose a way to fix this issue