SlimDXでIndexBuffer作成部分コード

CreateIndexBuffer.cs

public static SlimDX.Direct3D11.Buffer CreateIndexBuffer(System.Array indexes)
{
    using (SlimDX.DataStream indexStream
        = new SlimDX.DataStream(indexes, true, true))
    {
        return new SlimDX.Direct3D11.Buffer(
            Instance._device,
            indexStream,
            new BufferDescription
            {
                SizeInBytes = (int)indexStream.Length,
                BindFlags = BindFlags.IndexBuffer,
            }
            );
    }
}