private static async Task AskUserInstallCodec(CodecRequiredEventArgs args)
{
// show message box to user
// then open store page
await args.OpenStorePageAsync();
// wait for app window to be re-activated
var tcs = new TaskCompletionSource <object>();
WindowActivatedEventHandler handler = (s, e) =>
{
if (e.WindowActivationState != CoreWindowActivationState.Deactivated)
{
tcs.TrySetResult(null);
}
};
Window.Current.Activated += handler;
await tcs.Task;
Window.Current.Activated -= handler;
// now refresh codec checker, so next file might use HW acceleration (if codec was really installed)
await CodecChecker.RefreshAsync();
}
private async void CodecChecker_CodecRequired(CodecRequiredEventArgs args)
{
await Windows.ApplicationModel.Core.CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(
CoreDispatcherPriority.Normal,
new DispatchedHandler(async() =>
{
await AskUserInstallCodec(args);
}));
}
