Vmr9.cs

#region license

/*
DirectShowLib - Provide access to DirectShow interfaces via .NET
Copyright (C) 2007
http://sourceforge.net/projects/directshownet/

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

#endregion

using System;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Security;

namespace DirectShowLib
{
    #region Declarations

    /// <summary>
    /// From VMR9PresentationFlags
    /// </summary>
    [Flags]
    public enum VMR9PresentationFlags
    {
        None = 0,
        SyncPoint = 0x00000001,
        Preroll = 0x00000002,
        Discontinuity = 0x00000004,
        TimeValid = 0x00000008,
        SrcDstRectsValid = 0x00000010
    }

    /// <summary>
    /// From VMR9SurfaceAllocationFlags
    /// </summary>
    [Flags]
    public enum VMR9SurfaceAllocationFlags
    {
        None = 0,
        ThreeDRenderTarget = 0x0001,
        DXVATarget = 0x0002,
        TextureSurface = 0x0004,
        OffscreenSurface = 0x0008,
        RGBDynamicSwitch = 0x0010,
        UsageReserved = 0x00e0,
        UsageMask = 0x00FF
    }

    /// <summary>
    /// From VMR9ProcAmpControlFlags
    /// </summary>
    [Flags]
    public enum VMR9ProcAmpControlFlags
    {
        None = 0,
        Brightness = 0x00000001,
        Contrast = 0x00000002,
        Hue = 0x00000004,
        Saturation = 0x00000008,
        Mask = 0x0000000F
    }


    /// <summary>
    /// From VMR9MixerPrefs
    /// </summary>
    [Flags]
    public enum VMR9MixerPrefs
    {
        None = 0,
        NoDecimation = 0x00000001, // No decimation - full size
        DecimateOutput = 0x00000002, // decimate output by 2 in x & y
        ARAdjustXorY = 0x00000004, // adjust the aspect ratio in x or y
        NonSquareMixing = 0x00000008, // assume AP can handle non-square mixing, avoids intermediate scales
        DecimateMask = 0x0000000F,

        BiLinearFiltering = 0x00000010, // use bi-linear filtering
        PointFiltering = 0x00000020, // use point filtering
        AnisotropicFiltering = 0x00000040, //
        PyramidalQuadFiltering = 0x00000080, // 4-sample tent
        GaussianQuadFiltering = 0x00000100, // 4-sample gaussian
        FilteringReserved = 0x00000E00, // bits reserved for future use.
        FilteringMask = 0x00000FF0, // OR of all above flags

        RenderTargetRGB = 0x00001000,
        RenderTargetYUV = 0x00002000, // Uses DXVA to perform mixing
        RenderTargetReserved = 0x000FC000, // bits reserved for future use.
        RenderTargetMask = 0x000FF000, // OR of all above flags

        DynamicSwitchToBOB = 0x00100000,
        DynamicDecimateBy2 = 0x00200000,

        DynamicReserved = 0x00C00000,
        DynamicMask = 0x00F00000
    }

    /// <summary>
    /// From VMR9DeinterlaceTech
    /// </summary>
    [Flags]
    public enum VMR9DeinterlaceTech
    {
        Unknown = 0x0000,
        BOBLineReplicate = 0x0001,
        BOBVerticalStretch = 0x0002,
        MedianFiltering = 0x0004,
        EdgeFiltering = 0x0010,
        FieldAdaptive = 0x0020,
        PixelAdaptive = 0x0040,
        MotionVectorSteered = 0x0080
    }

    /// <summary>
    /// From VMR9AlphaBitmapFlags
    /// </summary>
    [Flags]
    public enum VMR9AlphaBitmapFlags
    {
        None = 0,
        Disable = 0x00000001,
        hDC = 0x00000002,
        EntireDDS = 0x00000004,
        SrcColorKey = 0x00000008,
        SrcRect = 0x00000010,
        FilterMode = 0x00000020
    }

    /// <summary>
    /// From VMR9DeinterlacePrefs
    /// </summary>
    [Flags]
    public enum VMR9DeinterlacePrefs
    {
        None = 0,
        NextBest = 0x01,
        BOB = 0x02,
        Weave = 0x04,
        Mask = 0x07
    }

    /// <summary>
    /// From VMR9RenderPrefs
    /// </summary>
    [Flags]
    public enum VMR9RenderPrefs
    {
        None = 0,
        DoNotRenderBorder = 0x00000001, // app paints color keys
        Mask = 0x00000001, // OR of all above flags
    }

    /// <summary>
    /// From VMR9Mode
    /// </summary>
    [Flags]
    public enum VMR9Mode
    {
        None = 0,
        Windowed = 0x00000001,
        Windowless = 0x00000002,
        Renderless = 0x00000004,
        Mask = 0x00000007
    }

    /// <summary>
    /// From VMR9AspectRatioMode
    /// </summary>
    public enum VMR9AspectRatioMode
    {
        None,
        LetterBox,
    }

    /// <summary>
    /// From VMR9_SampleFormat
    /// </summary>
    public enum VMR9SampleFormat
    {
        None = 0,
        Reserved = 1,
        ProgressiveFrame = 2,
        FieldInterleavedEvenFirst = 3,
        FieldInterleavedOddFirst = 4,
        FieldSingleEven = 5,
        FieldSingleOdd = 6
    }

    /// <summary>
    /// From VMR9PresentationInfo
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct VMR9PresentationInfo
    {
        public VMR9PresentationFlags dwFlags;
        public IntPtr lpSurf; //IDirect3DSurface9
        public long rtStart;
        public long rtEnd;
        public Size szAspectRatio;
        public DsRect rcSrc;
        public DsRect rcDst;
        public int dwReserved1;
        public int dwReserved2;
    }

    /// <summary>
    /// From VMR9AllocationInfo
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct VMR9AllocationInfo
    {
        public VMR9SurfaceAllocationFlags dwFlags;
        public int dwWidth;
        public int dwHeight;
        public int Format; // D3DFORMAT
        public int Pool; // D3DPOOL
        public int MinBuffers;
        public Size szAspectRatio;
        public Size szNativeSize;
    }

    /// <summary>
    /// From VMR9ProcAmpControl
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct VMR9ProcAmpControl
    {
        public int dwSize; // should be 24
        public VMR9ProcAmpControlFlags dwFlags;
        public float Brightness;
        public float Contrast;
        public float Hue;
        public float Saturation;
    }

    /// <summary>
    /// From VMR9MonitorInfo
    /// </summary>
    [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Unicode)]
    public struct VMR9MonitorInfo
    {
        public int uDevID;
        public DsRect rcMonitor;
        public IntPtr hMon;
        public int dwFlags;
        [MarshalAs(UnmanagedType.ByValTStr, SizeConst=32)] public string szDevice;
        [MarshalAs(UnmanagedType.ByValTStr, SizeConst=512)] public string szDescription;
        public long liDriverVersion;
        public int dwVendorId;
        public int dwDeviceId;
        public int dwSubSysId;
        public int dwRevision;
    }

    /// <summary>
    /// From VMR9DeinterlaceCaps
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct VMR9DeinterlaceCaps
    {
        public int dwSize;
        public int dwNumPreviousOutputFrames;
        public int dwNumForwardRefSamples;
        public int dwNumBackwardRefSamples;
        public VMR9DeinterlaceTech DeinterlaceTechnology;
    }

    /// <summary>
    /// From VMR9VideoStreamInfo
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct VMR9VideoStreamInfo
    {
        public IntPtr pddsVideoSurface; // IDirect3DSurface9
        public int dwWidth;
        public int dwHeight;
        public int dwStrmID;
        public float fAlpha;
        public NormalizedRect rNormal;
        public long rtStart;
        public long rtEnd;
        public VMR9SampleFormat SampleFormat;
    }

    /// <summary>
    /// From VMR9VideoDesc
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct VMR9VideoDesc
    {
        public int dwSize;
        public int dwSampleWidth;
        public int dwSampleHeight;
        public VMR9SampleFormat SampleFormat;
        public int dwFourCC;
        public VMR9Frequency InputSampleFreq;
        public VMR9Frequency OutputFrameFreq;
    }

    /// <summary>
    /// From VMR9Frequency
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct VMR9Frequency
    {
        public int dwNumerator;
        public int dwDenominator;
    }

    /// <summary>
    /// From VMR9AlphaBitmap
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct VMR9AlphaBitmap
    {
        public VMR9AlphaBitmapFlags dwFlags;
        public IntPtr hdc; // HDC
        public IntPtr pDDS; // IDirect3DSurface9
        public DsRect rSrc;
        public NormalizedRect rDest;
        public float fAlpha;
        public int clrSrcKey;
        public VMRMixerPrefs dwFilterMode;
    }

    /// <summary>
    /// From VMR9ProcAmpControlRange
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct VMR9ProcAmpControlRange
    {
        public int dwSize; // should be 24
        public VMR9ProcAmpControlFlags dwProperty;
        public float MinValue;
        public float MaxValue;
        public float DefaultValue;
        public float StepSize;
    }

    #endregion

    #region Interfaces

#if ALLOW_UNTESTED_INTERFACES

    [ComImport, SuppressUnmanagedCodeSecurity,
    Guid("dfc581a1-6e1f-4c3a-8d0a-5e9792ea2afc"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVMRSurface9
    {
        [PreserveSig]
        int IsSurfaceLocked();

        [PreserveSig]
        int LockSurface([Out] out IntPtr lpSurface); // BYTE**

        [PreserveSig]
        int UnlockSurface();

        [PreserveSig]
        int GetSurface([Out, MarshalAs(UnmanagedType.IUnknown)] out object lplpSurface);
    }

#endif

    [ComImport, SuppressUnmanagedCodeSecurity,
    Guid("69188c61-12a3-40f0-8ffc-342e7b433fd7"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVMRImagePresenter9
    {
        [PreserveSig]
        int StartPresenting([In] IntPtr dwUserID);

        [PreserveSig]
        int StopPresenting([In] IntPtr dwUserID);

        [PreserveSig]
        int PresentImage([In] IntPtr dwUserID, [In] ref VMR9PresentationInfo lpPresInfo);
    }

    [ComImport, SuppressUnmanagedCodeSecurity,
    Guid("6de9a68a-a928-4522-bf57-655ae3866456"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVMRSurfaceAllocatorEx9 : IVMRSurfaceAllocator9
    {
        #region IVMRSurfaceAllocator9 Methods

        [PreserveSig]
        new int InitializeDevice(
            [In] IntPtr dwUserID,
            [In] ref VMR9AllocationInfo lpAllocInfo,
            [In, Out] ref int lpNumBuffers
            );

        [PreserveSig]
        new int TerminateDevice([In] IntPtr dwID);

        [PreserveSig]
        new int GetSurface(
            [In] IntPtr dwUserID,
            [In] int SurfaceIndex,
            [In] int SurfaceFlags,
            [Out] out IntPtr lplpSurface
            );

        [PreserveSig]
        new int AdviseNotify([In] IVMRSurfaceAllocatorNotify9 lpIVMRSurfAllocNotify);

        #endregion

        [PreserveSig]
        int GetSurfaceEx(
            [In] IntPtr dwUserID,
            [In] int SurfaceIndex,
            [In] int SurfaceFlags,
            [Out] out IntPtr lplpSurface,
            [Out] out DsRect lprcDst
            );
    }

    [ComImport, SuppressUnmanagedCodeSecurity,
    Guid("dca3f5df-bb3a-4d03-bd81-84614bfbfa0c"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVMRSurfaceAllocatorNotify9
    {
        [PreserveSig]
        int AdviseSurfaceAllocator(
            [In] IntPtr dwUserID,
            [In] IVMRSurfaceAllocator9 lpIVRMSurfaceAllocator
            );

        [PreserveSig]
        int SetD3DDevice(
            [In] IntPtr lpD3DDevice,
            [In] IntPtr hMonitor
            );

        [PreserveSig]
        int ChangeD3DDevice(
            [In] IntPtr lpD3DDevice,
            [In] IntPtr hMonitor
            );

        [PreserveSig]
        int AllocateSurfaceHelper(
            [In] ref VMR9AllocationInfo lpAllocInfo,
            [In, Out] ref int lpNumBuffers,
            [Out, MarshalAs(UnmanagedType.LPArray, ArraySubType=UnmanagedType.SysInt)] IntPtr[] lplpSurface
            );

        [PreserveSig]
        int NotifyEvent(
            [In] EventCode EvCode,
            [In] IntPtr Param1,
            [In] IntPtr Param2
            );
    }

    [ComImport, SuppressUnmanagedCodeSecurity,
    Guid("8d5148ea-3f5d-46cf-9df1-d1b896eedb1f"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVMRSurfaceAllocator9
    {
        [PreserveSig]
        int InitializeDevice(
            [In] IntPtr dwUserID,
            [In] ref VMR9AllocationInfo lpAllocInfo,
            [In, Out] ref int lpNumBuffers
            );

        [PreserveSig]
        int TerminateDevice([In] IntPtr dwID);

        [PreserveSig]
        int GetSurface(
            [In] IntPtr dwUserID,
            [In] int SurfaceIndex,
            [In] int SurfaceFlags,
            [Out] out IntPtr lplpSurface
            );

        [PreserveSig]
        int AdviseNotify([In] IVMRSurfaceAllocatorNotify9 lpIVMRSurfAllocNotify);
    }

    [ComImport, SuppressUnmanagedCodeSecurity,
    Guid("5a804648-4f66-4867-9c43-4f5c822cf1b8"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVMRFilterConfig9
    {
        [PreserveSig]
        int SetImageCompositor([In] IVMRImageCompositor9 lpVMRImgCompositor);

        [PreserveSig]
        int SetNumberOfStreams([In] int dwMaxStreams);

        [PreserveSig]
        int GetNumberOfStreams([Out] out int pdwMaxStreams);

        [PreserveSig]
        int SetRenderingPrefs([In] VMR9RenderPrefs dwRenderFlags);

        [PreserveSig]
        int GetRenderingPrefs([Out] out VMR9RenderPrefs pdwRenderFlags);

        [PreserveSig]
        int SetRenderingMode([In] VMR9Mode Mode);

        [PreserveSig]
        int GetRenderingMode([Out] out VMR9Mode Mode);
    }

    [ComImport, SuppressUnmanagedCodeSecurity,
    Guid("8f537d09-f85e-4414-b23b-502e54c79927"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVMRWindowlessControl9
    {
        int GetNativeVideoSize(
            [Out] out int lpWidth,
            [Out] out int lpHeight,
            [Out] out int lpARWidth,
            [Out] out int lpARHeight
            );

        int GetMinIdealVideoSize(
            [Out] out int lpWidth,
            [Out] out int lpHeight
            );

        int GetMaxIdealVideoSize(
            [Out] out int lpWidth,
            [Out] out int lpHeight
            );

        int SetVideoPosition(
            [In] DsRect lpSRCRect,
            [In] DsRect lpDSTRect
            );

        int GetVideoPosition(
            [Out] DsRect lpSRCRect,
            [Out] DsRect lpDSTRect
            );

        int GetAspectRatioMode([Out] out VMR9AspectRatioMode lpAspectRatioMode);

        int SetAspectRatioMode([In] VMR9AspectRatioMode AspectRatioMode);

        int SetVideoClippingWindow([In] IntPtr hwnd); // HWND

        int RepaintVideo(
            [In] IntPtr hwnd, // HWND
            [In] IntPtr hdc // HDC
            );

        int DisplayModeChanged();

        int GetCurrentImage([Out] out IntPtr lpDib); // BYTE**

        int SetBorderColor([In] int Clr);

        int GetBorderColor([Out] out int lpClr);
    }

    [ComImport, SuppressUnmanagedCodeSecurity,
    Guid("00d96c29-bbde-4efc-9901-bb5036392146"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVMRAspectRatioControl9
    {
        [PreserveSig]
        int GetAspectRatioMode([Out] out VMRAspectRatioMode lpdwARMode);

        [PreserveSig]
        int SetAspectRatioMode([In] VMRAspectRatioMode lpdwARMode);
    }

    [ComImport, SuppressUnmanagedCodeSecurity,
    Guid("a215fb8d-13c2-4f7f-993c-003d6271a459"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVMRDeinterlaceControl9
    {
        [PreserveSig]
        int GetNumberOfDeinterlaceModes(
            [In] ref VMR9VideoDesc lpVideoDescription,
            [In, Out] ref int lpdwNumDeinterlaceModes,
            [Out, MarshalAs(UnmanagedType.LPArray, ArraySubType=UnmanagedType.Struct)] Guid[] lpDeinterlaceModes
            );

        [PreserveSig]
        int GetDeinterlaceModeCaps(
            [In, MarshalAs(UnmanagedType.LPStruct)] Guid lpDeinterlaceMode,
            [In] ref VMR9VideoDesc lpVideoDescription,
            [In, Out] ref VMR9DeinterlaceCaps lpDeinterlaceCaps
            );

        [PreserveSig]
        int GetDeinterlaceMode(
            [In] int dwStreamID,
            [Out] out Guid lpDeinterlaceMode
            );

        [PreserveSig]
        int SetDeinterlaceMode(
            [In] int dwStreamID,
            [In, MarshalAs(UnmanagedType.LPStruct)] Guid lpDeinterlaceMode
            );

        [PreserveSig]
        int GetDeinterlacePrefs([Out] out VMR9DeinterlacePrefs lpdwDeinterlacePrefs);

        [PreserveSig]
        int SetDeinterlacePrefs([In] VMR9DeinterlacePrefs lpdwDeinterlacePrefs);

        [PreserveSig]
        int GetActualDeinterlaceMode(
            [In] int dwStreamID,
            [Out] out Guid lpDeinterlaceMode
            );
    }

    [ComImport, SuppressUnmanagedCodeSecurity,
    Guid("4a5c89eb-df51-4654-ac2a-e48e02bbabf6"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVMRImageCompositor9
    {
        [PreserveSig]
        int InitCompositionDevice([In] IntPtr pD3DDevice);

        [PreserveSig]
        int TermCompositionDevice([In] IntPtr pD3DDevice);

        [PreserveSig]
        int SetStreamMediaType(
            [In] int dwStrmID,
            [In] AMMediaType pmt,
            [In, MarshalAs(UnmanagedType.Bool)] bool fTexture
            );

        [PreserveSig]
        int CompositeImage(
            [In] IntPtr pD3DDevice,
            [In] IntPtr pddsRenderTarget, // IDirect3DSurface9
            [In] AMMediaType pmtRenderTarget,
            [In] long rtStart,
            [In] long rtEnd,
            [In] int dwClrBkGnd,
            [In, MarshalAs(UnmanagedType.LPArray, ArraySubType=UnmanagedType.Struct, SizeParamIndex=7)] VMR9VideoStreamInfo[] pVideoStreamInfo,
            [In] int cStreams
            );
    }

    [ComImport, SuppressUnmanagedCodeSecurity,
    Guid("45c15cab-6e22-420a-8043-ae1f0ac02c7d"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVMRImagePresenterConfig9
    {
        [PreserveSig]
        int SetRenderingPrefs([In] VMR9RenderPrefs dwRenderFlags);

        [PreserveSig]
        int GetRenderingPrefs([Out] out VMR9RenderPrefs dwRenderFlags);
    }

    [ComImport, SuppressUnmanagedCodeSecurity,
    Guid("ced175e5-1935-4820-81bd-ff6ad00c9108"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVMRMixerBitmap9
    {
        [PreserveSig]
        int SetAlphaBitmap([In] ref VMR9AlphaBitmap pBmpParms);

        [PreserveSig]
        int UpdateAlphaBitmapParameters([In] ref VMR9AlphaBitmap pBmpParms);

        [PreserveSig]
        int GetAlphaBitmapParameters([Out] out VMR9AlphaBitmap pBmpParms);
    }

    [ComImport, SuppressUnmanagedCodeSecurity,
    Guid("1a777eaa-47c8-4930-b2c9-8fee1c1b0f3b"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVMRMixerControl9
    {
        [PreserveSig]
        int SetAlpha(
            [In] int dwStreamID,
            [In] float Alpha
            );

        [PreserveSig]
        int GetAlpha(
            [In] int dwStreamID,
            [Out] out float Alpha
            );

        [PreserveSig]
        int SetZOrder(
            [In] int dwStreamID,
            [In] int dwZ
            );

        [PreserveSig]
        int GetZOrder(
            [In] int dwStreamID,
            [Out] out int dwZ
            );

        [PreserveSig]
        int SetOutputRect(
            [In] int dwStreamID,
            [In] ref NormalizedRect pRect
            );

        [PreserveSig]
        int GetOutputRect(
            [In] int dwStreamID,
            [Out] out NormalizedRect pRect
            );

        [PreserveSig]
        int SetBackgroundClr([In] int ClrBkg);

        [PreserveSig]
        int GetBackgroundClr([Out] out int ClrBkg);

        [PreserveSig]
        int SetMixingPrefs([In] VMR9MixerPrefs dwMixerPrefs);

        [PreserveSig]
        int GetMixingPrefs([Out] out VMR9MixerPrefs dwMixerPrefs);

        [PreserveSig]
        int SetProcAmpControl(
            [In] int dwStreamID,
            [In] ref VMR9ProcAmpControl lpClrControl
            );

        [PreserveSig]
        int GetProcAmpControl(
            [In] int dwStreamID,
            [In, Out] ref VMR9ProcAmpControl lpClrControl
            );

        [PreserveSig]
        int GetProcAmpControlRange(
            [In] int dwStreamID,
            [In, Out] ref VMR9ProcAmpControlRange lpClrControl
            );
    }

    [ComImport, SuppressUnmanagedCodeSecurity,
    Guid("46c2e457-8ba0-4eef-b80b-0680f0978749"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVMRMonitorConfig9
    {
        [PreserveSig]
        int SetMonitor([In] int uDev);

        [PreserveSig]
        int GetMonitor([Out] out int uDev);

        [PreserveSig]
        int SetDefaultMonitor([In] int uDev);

        [PreserveSig]
        int GetDefaultMonitor([Out] out int uDev);

        [PreserveSig]
        int GetAvailableMonitors(
            [Out, MarshalAs(UnmanagedType.LPArray, ArraySubType=UnmanagedType.Struct)] VMR9MonitorInfo[] pInfo,
            [In] int dwMaxInfoArraySize,
            [Out] out int pdwNumDevices
            );
    }

    [ComImport, SuppressUnmanagedCodeSecurity,
    Guid("d0cfe38b-93e7-4772-8957-0400c49a4485"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVMRVideoStreamControl9
    {
        [PreserveSig]
        int SetStreamActiveState([In, MarshalAs(UnmanagedType.Bool)] bool fActive);

        [PreserveSig]
        int GetStreamActiveState([Out, MarshalAs(UnmanagedType.Bool)] out bool fActive);
    }

    #endregion
}