Question

我撰写了一份WPF申请,正在通过C#代码从电视卡中获取显示和声音。我可以从电视卡接听节目,但我从电视卡听不到任何音响。 BTW, I m, using.NET framework 3.5 with Vision 2010。我的问题是,我如何能够从电视卡获得音响?

最后,我利用直接X图书馆在下文尝试过任何类似情况。然而,我有以下错误。

The best overloaded method match for Microsoft.DirectX.DirectSound.Device.SetCooperativeLevel(System.Windows.Forms.Control, Microsoft.DirectX.DirectSound.CooperativeLevel) has some invalid arguments.
Argument 1: cannot convert from Wpfvideo.MainWindow to System.Windows.Forms.Control

法典:

private DS.Device soundDevice;
private SecondaryBuffer buffer;
private ArrayList soundlist = new ArrayList();

private void InitializeSound()
{
     soundDevice = new DS.Device();
     soundDevice.SetCooperativeLevel(this, CooperativeLevel.Priority);

    BufferDescription description = new BufferDescription();
    description.ControlEffects = false;
    buffer = new SecondaryBuffer(CaptureDeviceName, description, soundDevice);
    buffer.Play(0, BufferPlayFlags.Default);
    SecondaryBuffer newshotsound = buffer.Clone(soundDevice);
    newshotsound.Play(0, BufferPlayFlags.Default);
}

Answer 1

为此:

var windowInteropHelper = new WindowInteropHelper(this);
soundDevice = new DS.Device();
soundDevice.SetCooperativeLevel(windowInteropHelper.Handle, CooperativeLevel.Priority);

Answer 2

拨打<代码>声速率(......)的电话,预计会随着其第一参数的缘故而进行双赢控制,并试图给它一个WPF窗口(它不会赢得对账)。

友情链接