using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
using System.Text;
using System.Threading.Tasks;

namespace Tango.Video.DirectShow
{
    internal sealed class NativeMethods
    {
        private NativeMethods() { }

        [DllImport("ole32.dll")]
#if USING_NET11
		public static extern int CreateBindCtx(int reserved, out UCOMIBindCtx ppbc);
#else
        public static extern int CreateBindCtx(int reserved, out IBindCtx ppbc);
#endif

        [DllImport("ole32.dll")]
#if USING_NET11
		public static extern int MkParseDisplayName(UCOMIBindCtx pcb, [MarshalAs(UnmanagedType.LPWStr)] string szUserName, out int pchEaten, out UCOMIMoniker ppmk);
#else
        public static extern int MkParseDisplayName(IBindCtx pcb, [MarshalAs(UnmanagedType.LPWStr)] string szUserName, out int pchEaten, out IMoniker ppmk);
#endif

        [DllImport("oleaut32.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
        public static extern int OleCreatePropertyFrame(
            [In] IntPtr hwndOwner,
            [In] int x,
            [In] int y,
            [In, MarshalAs(UnmanagedType.LPWStr)] string lpszCaption,
            [In] int cObjects,
            [In, MarshalAs(UnmanagedType.LPArray, ArraySubType = UnmanagedType.IUnknown)] object[] ppUnk,
            [In] int cPages,
            [In] IntPtr pPageClsID,
            [In] int lcid,
            [In] int dwReserved,
            [In] IntPtr pvReserved
            );

        [DllImport("ole32.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
        public static extern int StgCreateDocfile(
            [In, MarshalAs(UnmanagedType.LPWStr)] string pwcsName,
            [In] STGM grfMode,
            [In] int reserved,
            [Out] out IStorage ppstgOpen
            );

        [DllImport("ole32.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
        public static extern int StgIsStorageFile([In, MarshalAs(UnmanagedType.LPWStr)] string pwcsName);

        [DllImport("ole32.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
        public static extern int StgOpenStorage(
            [In, MarshalAs(UnmanagedType.LPWStr)] string pwcsName,
            [In] IStorage pstgPriority,
            [In] STGM grfMode,
            [In] IntPtr snbExclude,
            [In] int reserved,
            [Out] out IStorage ppstgOpen
            );

    }
}