| -api-id | -api-type |
|---|---|
T:Windows.UI.Xaml.Media.RateChangedRoutedEventHandler |
winrt delegate |
Represents the method that will handle the RateChanged event. This event fires when PlaybackRate or DefaultPlaybackRate change either via user interaction or from code.
The object where the handler is attached.
The event data.
This example uses C# code-behind to add a handler to a MediaElement named "myMediaElement" defined in XAML (not shown). The handler gets the PlaybackRate from the MediaElement. That information could be presented in UI as a number, or could be part of logic that displays different UI for normal playback or accelerated/slowed playback. Note that the current rate is obtainable from the MediaElement event source, it isn't carried in the event data.
Note
myMediaElement_RateChanged is raised when either the PlaybackRate or the DefaultPlaybackRate changes, so it is possible that myMediaElement.PlaybackRate queried below is unchanged from previous value.
public MainPage()
{
this.InitializeComponent();
myMediaElement.RateChanged += myMediaElement_RateChanged;
}
void myMediaElement_RateChanged(object sender, RateChangedRoutedEventArgs e)
{
Double CurrentPlayBackRate = myMediaElement.PlaybackRate;
}