SoundPlayer.PlaySync Metode

Definisi

Ruang nama:

System.Media

Rakitan:

System.Windows.Extensions.dll

Paket:

System.Windows.Extensions v8.0.0

Sumber:

SoundPlayer.cs

Memutar file .wav dan memuat file .wav terlebih dahulu jika belum dimuat.

public:
 void PlaySync();

public void PlaySync ();

member this.PlaySync : unit -> unit

Public Sub PlaySync ()

Pengecualian

TimeoutException

Waktu yang berlalu selama pemuatan melebihi waktu, dalam milidetik, yang ditentukan oleh LoadTimeout.

FileNotFoundException

File yang ditentukan oleh SoundLocation tidak dapat ditemukan.

InvalidOperationException

Header .wav rusak; file yang ditentukan oleh SoundLocation bukan file .wav PCM.

Contoh

Contoh kode berikut menunjukkan penggunaan PlaySync metode untuk memutar file .wav secara sinkron.

private:
   SoundPlayer^ Player;

   void loadSoundAsync()
   {
      // Note: You may need to change the location specified based on
      // the location of the sound to be played.
      this->Player->SoundLocation = "http://www.tailspintoys.com/sounds/stop.wav";
      this->Player->LoadAsync();
   }

   void Player_LoadCompleted( Object^ /*sender*/, System::ComponentModel::AsyncCompletedEventArgs^ /*e*/ )
   {
      if (this->Player->IsLoadCompleted == true)
      {
         this->Player->PlaySync();
      }
   }

private SoundPlayer Player = new SoundPlayer();
private void loadSoundAsync()
{
    // Note: You may need to change the location specified based on
    // the location of the sound to be played.
    this.Player.SoundLocation = "http://www.tailspintoys.com/sounds/stop.wav";
    this.Player.LoadAsync();
}

private void Player_LoadCompleted (
    object sender, 
    System.ComponentModel.AsyncCompletedEventArgs e)
{
    if (this.Player.IsLoadCompleted)
    {
        this.Player.PlaySync();
    }
}

Private WithEvents Player As New SoundPlayer

Sub LoadSoundAsync()
    ' Note: You may need to change the location specified based on
    ' the location of the sound to be played.
    Me.Player.SoundLocation = "http://www.tailspintoys.com/sounds/stop.wav"
    Me.Player.LoadAsync ()
End Sub

Private Sub PlayWhenLoaded(ByVal sender As Object, ByVal e As _
    System.ComponentModel.AsyncCompletedEventArgs) Handles _
    Player.LoadCompleted
    If Me.Player.IsLoadCompleted = True Then
            Me.Player.PlaySync()
    End If
End Sub

Keterangan

Metode ini PlaySync menggunakan utas saat ini untuk memutar file .wav, mencegah utas menangani pesan lain hingga beban selesai. Anda dapat menggunakan LoadAsync metode atau Load untuk memuat file .wav ke memori terlebih dahulu. Setelah file .wav berhasil dimuat dari Stream URL atau , panggilan mendatang ke metode pemutaran untuk SoundPlayer tidak perlu memuat ulang file .wav sampai jalur untuk suara berubah.

Jika file .wav belum ditentukan atau gagal dimuat, PlaySync metode akan memutar suara bip default.

Lihat juga

• Play()
• PlayLooping()
• Gambaran Umum Kelas SoundPlayer (Formulir Windows)