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Fix camera still being used after closing camera preview page #1638

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12 changes: 12 additions & 0 deletions WinUIGallery/ControlPages/CaptureElementPreviewPage.xaml.cs
Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@
using Windows.Storage.Streams;
using System.ComponentModel;
using WinUIGallery.Helper;
using System.Threading.Tasks;

namespace WinUIGallery.ControlPages
{
Expand All @@ -38,6 +39,17 @@ public CaptureElementPreviewPage()
captureContainer.Children.Remove(sv);
captureContainer.Children.Add(expandToFillContainer);
expandToFillContainer.Children.Add(sv);

this.Unloaded += this.CaptureElementPreviewPage_Unloaded;
}

private void CaptureElementPreviewPage_Unloaded(object sender, RoutedEventArgs e)
{
// Needs to run as task to unblock UI thread
if (mediaCapture != null)
{
new Task(mediaCapture.Dispose).Start();
}
}

private MediaFrameSourceGroup mediaFrameSourceGroup;
Expand Down