使用Windows.Media.Miracast命名空间的正确方式是什么？

Question

我正在研究应用程序中通过Miracast进行的屏幕转换，但不确定如何使用Windows.Media.Miracast命名空间。由于Windows 10 1903更新的时间较短，命名空间作为其一部分出现，互联网上的信息有限。

到目前为止，我发现的唯一一件事是这份文件。

我的问题是，有人知道使用这个名称空间的正确方式是什么吗？任何在网上找到的例子或资源都会有很大的帮助。

干杯。

Answer 1

这三个示例项目演示了可以从UWP应用程序中使用的各种MiraCast源apis。不确定在UWP之外。

• https://github.com/Microsoft/Windows-universal-samples/tree/master/Samples/BasicMediaCasting
• https://github.com/microsoft/Windows-universal-samples/tree/master/Samples/AdvancedCasting
• https://github.com/microsoft/Windows-universal-samples/tree/master/Samples/Projection

我个人正在使用类似于的代码来投出我的整个屏幕

设备扫描：

miraDeviceWatcher = DeviceInformation.CreateWatcher(CastingDevice.GetDeviceSelector(CastingPlaybackTypes.Video)); 
miraHandlerAdded = new TypedEventHandler<DeviceWatcher, DeviceInformation>(async (watcher, deviceInfo) =>
{
   await dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async () =>
   {
      //Add each discovered device to our listbox
      CastingDevice addedDevice = await CastingDevice.FromIdAsync(deviceInfo.Id);
      var disp = new CastingDisplay(addedDevice); //my viewmodel
      MiraDevices.Add(disp); //ObservableCollection
   });
});
miraDeviceWatcher.Added += miraHandlerAdded;

连接到选定的设备：

public async Task StartCasting(CastingDisplay castee)
{
   //When a device is selected, first thing we do is stop the watcher so it's search doesn't conflict with streaming
   if (miraDeviceWatcher.Status != DeviceWatcherStatus.Stopped)
   {
      miraDeviceWatcher.Stop();
   }

   //Create a new casting connection to the device that's been selected
   connection = castee.Device.CreateCastingConnection();
   //Register for events
   connection.ErrorOccurred += Connection_ErrorOccurred;
   connection.StateChanged += Connection_StateChangedAsync;

   var image = new Windows.UI.Xaml.Controls.Image();
   await connection.RequestStartCastingAsync(image.GetAsCastingSource());
}

此图像仅用作转换源。一旦连接成功，我的整个屏幕就会被广播。这种行为没有记录在案。希望它不会在未来的更新中得到“修正”。