问下关于C# DX9.0 抗锯齿的问题

Question

        Parameters = new PresentParameters
        {
            BackBufferFormat = Format.X8R8G8B8,
            PresentFlag = PresentFlag.LockableBackBuffer,
            BackBufferWidth = Settings.ScreenWidth,
            BackBufferHeight = Settings.ScreenHeight,
            SwapEffect = SwapEffect.Discard,
            PresentationInterval = PresentInterval.Default,
            BackBufferCount =1,
            MultiSample = MultiSampleType.TwoSamples,//打开抗锯齿
            MultiSampleQuality = 20,
            Windowed = !Settings.FullScreen,
        };


        Caps devCaps = Manager.GetDeviceCaps(0, DeviceType.Hardware);
        DeviceType devType = DeviceType.Reference;
        CreateFlags devFlags = CreateFlags.HardwareVertexProcessing;

        if (devCaps.VertexShaderVersion.Major >= 2 && devCaps.PixelShaderVersion.Major >= 2)
            devType = DeviceType.Hardware;

        if (devCaps.DeviceCaps.SupportsHardwareTransformAndLight)
            devFlags = CreateFlags.HardwareVertexProcessing;


        if (devCaps.DeviceCaps.SupportsPureDevice)
            devFlags |= CreateFlags.PureDevice;


        Device = new Device(Manager.Adapters.Default.Adapter, devType, Program.Form, devFlags, Parameters);

                    打开抗锯齿出现错误,不打开绘图正常,是哪里设置出错

                    应用程序中的错误。

-2005530516 (D3DERR_INVALIDCALL)
在 Microsoft.DirectX.Direct3D.Device..ctor(Int32 adapter, DeviceType deviceType, Control renderWindow, CreateFlags behaviorFlags, PresentParameters[] presentationParameters)

Answer 1

http://blog.csdn.net/u013467442/article/details/40628121