DirectWriteとDirect3D11を同時に扱う

using SlimDX.Direct3D11;
using SlimDX.DXGI;
using Device1 = SlimDX.Direct3D10_1.Device1;
using Resource = SlimDX.DXGI.Resource;
using Texture2D11 = SlimDX.Direct3D11.Texture2D;
using Texture2D10 = SlimDX.Direct3D10.Texture2D;
using FactoryD2D = SlimDX.Direct2D.Factory;
using FactoryDW = SlimDX.DirectWrite.Factory;
using FeatureLevel11 = SlimDX.Direct3D11.FeatureLevel;
using FeatureLevel10 = SlimDX.Direct3D10_1.FeatureLevel;
namespace HogeApp.CG
{
    public class D2DSupportedDeviceManager:BasicGraphicDeviceManager
    {
        /// <summary>
        /// Direct2D/DirectWrite用DirectX10デバイス
        /// </summary>
        public Device1 Device10_1 { get; private set; }

        public Texture2D11 TextureD3D_11 { get; private set; }

        public Texture2D10 TextureD3D_10 { get; private set; }

        public Resource SharedResource { get; private set; }

        public KeyedMutex MutexD3D11 { get; private set; }

        public KeyedMutex MutexD3D10 { get; private set; }


        protected override void PostLoad(System.Windows.Forms.Control form)
        {
            //Direct2D/DirectWrite用のDirect3D10のデバイスを作成する
            Device10_1 = new Device1(adapter1, SlimDX.Direct3D10.DriverType.Hardware, SlimDX.Direct3D10.DeviceCreationFlags.BgraSupport | SlimDX.Direct3D10.DeviceCreationFlags.Debug,FeatureLevel10.Level_10_0);
            //D3D11用のテクスチャの作成
            TextureD3D_11 = new Texture2D11
            (Device,
            new Texture2DDescription()
            {
                Width=form.Width,
                Height=form.Height,
                MipLevels=1,
                ArraySize=1,
                Format=Format.R8G8B8A8_UNorm,
                SampleDescription=new SampleDescription(1,0),
                Usage=ResourceUsage.Default,
                BindFlags=BindFlags.RenderTarget|BindFlags.ShaderResource,
                CpuAccessFlags=CpuAccessFlags.None,
                OptionFlags=ResourceOptionFlags.KeyedMutex
            });
            //テクスチャをシェアする
            SharedResource = new Resource(TextureD3D_11);
            TextureD3D_10 = Device10_1.OpenSharedResource<Texture2D10>(SharedResource.SharedHandle);//ココで例外・・・

            ////Direct2Dの初期化を行う
            //FactoryD2D factoryd2d = new FactoryD2D(SlimDX.Direct2D.FactoryType.SingleThreaded, SlimDX.Direct2D.DebugLevel.Information);
            //FactoryDW factorydw = new FactoryDW(SlimDX.DirectWrite.FactoryType.Isolated);
            //factoryd2d.Dispose();
            //factorydw.Dispose();
        }


        public override void Dispose()
        {
            base.Dispose();
            Device10_1.Dispose();
            TextureD3D_11.Dispose();
            //TextureD3D_10.Dispose();
            //TextureD3D_10.Dispose();
            //MutexD3D10.Dispose();
           // MutexD3D11.Dispose();
            SharedResource.Dispose();
        }
    }
}