C#

public static class DirectX
    {
        /*  IDirect3D9* Direct3DCreate9(
                 UINT SDKVersion
            );*/
        [DllImport("d3d9.dll", EntryPoint = "Direct3DCreate9", CallingConvention = CallingConvention.Winapi), SuppressUnmanagedCodeSecurity]
        [return: MarshalAs(UnmanagedType.Interface)]
        public static extern IDirect3D9 Direct3DCreate9(UInt32 SDKVersion);


    }


/* DECLARE_INTERFACE_(IDirect3D9, IUnknown)*/
    [ComVisible(true), ComImport]
    [Guid("81BDCBCA-64D4-426d-AE8D-AD0147F4275C"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IDirect3D9  // http://msdn.microsoft.com/en-us/library/bb174300(VS.85).aspx
    {
        /*  UINT GetAdapterCount(
            );*/
        [PreserveSig]
        UInt32 GetAdapterCount();

        /*  HRESULT GetAdapterDisplayMode(
               UINT Adapter,
               D3DDISPLAYMODE* pMode
            );*/
        [PreserveSig]
        int GetAdapterDisplayMode(UInt32 Adapter, [In, Out] D3DDISPLAYMODE pMode);

        ...
    }

namespace Bubble_sort
{
    class SortArray
    {
        void BubblesortArray(int[] array)
        {
            int Position = 0;
            int endpos = 0;
            bool swapped = true;
            while (swapped)
            {
                swapped = false;
                Position = 0;
                endpos = array.Length;
                while (Position < endpos)
                {
                    if (array[Position] > array[Position + 1])
                    {
                        int Temp = array[Position];
                        array[Position] = array[Position + 1];
                        array[Position + 1] = Temp;
                        swapped = true;                        
                    }
                    Position++;
                    endpos--;
                }
                for (int i = 0; i < array.Length; i++)
                {
                    Console.Write(array[i].ToString() + ", ");
                }
                Console.WriteLine();
            }
        }

        public static void Main(string[] args)
        {
            SortArray Sort = new SortArray();
            int[] a = {1, 2, 3, 4, 1, 45, 134, 762, 2};
            Sort.BubblesortArray(a);
            for (int i = 0; i < a.Length; i++)
            {
                Console.Write(a[i].ToString() + ", ");
            }
            Console.Read();
        }
    }
}