Como: Ativar reprodução de mídia com um evento de usuário

This example shows how to synchronize media playback with an event.

Exemplo

The following example uses the MediaElement control and the MediaTimeline class to play a sound that occurs when the user clicks a Button.

<Page xmlns="https://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="https://schemas.microsoft.com/winfx/2006/xaml" >
  <StackPanel>

    <!-- The MediaElement control plays the sound. -->
    <MediaElement Name="myMediaElement" />

    <Button>Click to Hear a Sound!
      <Button.Triggers>
        <EventTrigger RoutedEvent="Button.Click">
          <EventTrigger.Actions>
            <BeginStoryboard>
              <Storyboard>

                <!-- Sound wave from this source is played when the button is clicked.-->
                <MediaTimeline Source="C:\WINDOWS\Media\ringin.wav" Storyboard.TargetName="myMediaElement"  />

              </Storyboard>
            </BeginStoryboard>
          </EventTrigger.Actions>
        </EventTrigger>
      </Button.Triggers>
    </Button>

  </StackPanel>
</Page>

<Page xmlns="https://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="https://schemas.microsoft.com/winfx/2006/xaml" >
  <StackPanel>

    <!-- The MediaElement control plays the sound. -->
    <MediaElement Name="myMediaElement" />

    <Button>Click to Hear a Sound!
      <Button.Triggers>
        <EventTrigger RoutedEvent="Button.Click">
          <EventTrigger.Actions>
            <BeginStoryboard>
              <Storyboard>

                <!-- Sound wave from this source is played when the button is clicked.-->
                <MediaTimeline Source="C:\WINDOWS\Media\ringin.wav" Storyboard.TargetName="myMediaElement"  />

              </Storyboard>
            </BeginStoryboard>
          </EventTrigger.Actions>
        </EventTrigger>
      </Button.Triggers>
    </Button>

  </StackPanel>
</Page>

Consulte também

Referência

MediaElement

MediaTimeline

RoutedEvent

Storyboard

Conceitos

Graphics and Multimedia

Outros recursos

Audio and Video How-to Topics