private async void ApplyEffectAsync()
{
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
progressBar.Visibility = Visibility.Visible;
saveImageButton.IsEnabled = false;
});
if (_isProcessing)
{
_actionQueue.Execute(() => ApplyEffectAsync());
}
else
{
await Task.Factory.StartNew(() => ApplyEffectInternalAsync());
}
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
progressBar.Visibility = Visibility.Collapsed;
if (_processedPhotoAsWriteableBitmap != null)
{
saveImageButton.IsEnabled = true;
}
});
}
private void OnSliderValueChanged(object sender, RangeBaseValueChangedEventArgs e)
{
double newThreshold = e.NewValue;
if (_videoEngine != null && _videoEngine.EffectSet)
{
_actionQueue.Execute(async() =>
{
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
_videoEngine.SetThreshold((float)newThreshold);
});
}
);
}
_settings.Threshold = newThreshold;
effectSettingsControl.SetSliderText("Threshold: " + newThreshold);
}