SoundPlayer Kelas
Definisi
Penting
Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.
Mengontrol pemutaran suara dari file .wav.
public ref class SoundPlayer : System::ComponentModel::Component, System::Runtime::Serialization::ISerializablepublic class SoundPlayer : System.ComponentModel.Component, System.Runtime.Serialization.ISerializable[System.Serializable]
public class SoundPlayer : System.ComponentModel.Component, System.Runtime.Serialization.ISerializabletype SoundPlayer = class
inherit Component
interface ISerializable[<System.Serializable>]
type SoundPlayer = class
inherit Component
interface ISerializablePublic Class SoundPlayer
Inherits Component
Implements ISerializable- Warisan
- Atribut
- Penerapan
Contoh
Contoh kode berikut menunjukkan penggunaan SoundPlayer kelas untuk memutar file .wav dari jalur lokal atau Pengidentifikasi Sumber Daya Seragam (URI).
#using <System.Drawing.dll>
#using <System.dll>
#using <System.Windows.Forms.dll>
using namespace System;
using namespace System::Collections;
using namespace System::ComponentModel;
using namespace System::Diagnostics;
using namespace System::Drawing;
using namespace System::Media;
using namespace System::Windows::Forms;
public ref class SoundTestForm: public System::Windows::Forms::Form
{
private:
System::Windows::Forms::Label ^ label1;
System::Windows::Forms::TextBox^ filepathTextbox;
System::Windows::Forms::Button^ playOnceSyncButton;
System::Windows::Forms::Button^ playOnceAsyncButton;
System::Windows::Forms::Button^ playLoopAsyncButton;
System::Windows::Forms::Button^ selectFileButton;
System::Windows::Forms::Button^ stopButton;
System::Windows::Forms::StatusBar^ statusBar;
System::Windows::Forms::Button^ loadSyncButton;
System::Windows::Forms::Button^ loadAsyncButton;
SoundPlayer^ player;
public:
SoundTestForm()
{
// Initialize Forms Designer generated code.
InitializeComponent();
// Disable playback controls until a valid .wav file
// is selected.
EnablePlaybackControls( false );
// Set up the status bar and other controls.
InitializeControls();
// Set up the SoundPlayer object.
InitializeSound();
}
private:
// Sets up the status bar and other controls.
void InitializeControls()
{
// Set up the status bar.
StatusBarPanel^ panel = gcnew StatusBarPanel;
panel->BorderStyle = StatusBarPanelBorderStyle::Sunken;
panel->Text = "Ready.";
panel->AutoSize = StatusBarPanelAutoSize::Spring;
this->statusBar->ShowPanels = true;
this->statusBar->Panels->Add( panel );
}
// Sets up the SoundPlayer object.
void InitializeSound()
{
// Create an instance of the SoundPlayer class.
player = gcnew SoundPlayer;
// Listen for the LoadCompleted event.
player->LoadCompleted += gcnew AsyncCompletedEventHandler( this, &SoundTestForm::player_LoadCompleted );
// Listen for the SoundLocationChanged event.
player->SoundLocationChanged += gcnew EventHandler( this, &SoundTestForm::player_LocationChanged );
}
void selectFileButton_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
// Create a new OpenFileDialog.
OpenFileDialog^ dlg = gcnew OpenFileDialog;
// Make sure the dialog checks for existence of the
// selected file.
dlg->CheckFileExists = true;
// Allow selection of .wav files only.
dlg->Filter = "WAV files (*.wav)|*.wav";
dlg->DefaultExt = ".wav";
// Activate the file selection dialog.
if ( dlg->ShowDialog() == ::DialogResult::OK )
{
// Get the selected file's path from the dialog.
this->filepathTextbox->Text = dlg->FileName;
// Assign the selected file's path to
// the SoundPlayer object.
player->SoundLocation = filepathTextbox->Text;
}
}
// Convenience method for setting message text in
// the status bar.
void ReportStatus( String^ statusMessage )
{
// If the caller passed in a message...
if ( (statusMessage != nullptr) && (statusMessage != String::Empty) )
{
// ...post the caller's message to the status bar.
this->statusBar->Panels[ 0 ]->Text = statusMessage;
}
}
// Enables and disables play controls.
void EnablePlaybackControls( bool enabled )
{
this->playOnceSyncButton->Enabled = enabled;
this->playOnceAsyncButton->Enabled = enabled;
this->playLoopAsyncButton->Enabled = enabled;
this->stopButton->Enabled = enabled;
}
void filepathTextbox_TextChanged( Object^ /*sender*/, EventArgs^ /*e*/ )
{
// Disable playback controls until the new .wav is loaded.
EnablePlaybackControls( false );
}
void loadSyncButton_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
// Disable playback controls until the .wav is
// successfully loaded. The LoadCompleted event
// handler will enable them.
EnablePlaybackControls( false );
try
{
// Assign the selected file's path to
// the SoundPlayer object.
player->SoundLocation = filepathTextbox->Text;
// Load the .wav file.
player->Load();
}
catch ( Exception^ ex )
{
ReportStatus( ex->Message );
}
}
void loadAsyncButton_Click( System::Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
// Disable playback controls until the .wav is
// successfully loaded. The LoadCompleted event
// handler will enable them.
EnablePlaybackControls( false );
try
{
// Assign the selected file's path to
// the SoundPlayer object.
player->SoundLocation = this->filepathTextbox->Text;
// Load the .wav file.
player->LoadAsync();
}
catch ( Exception^ ex )
{
ReportStatus( ex->Message );
}
}
// Synchronously plays the selected .wav file once.
// If the file is large, UI response will be visibly
// affected.
void playOnceSyncButton_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
ReportStatus( "Playing .wav file synchronously." );
player->PlaySync();
ReportStatus( "Finished playing .wav file synchronously." );
}
// Asynchronously plays the selected .wav file once.
void playOnceAsyncButton_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
ReportStatus( "Playing .wav file asynchronously." );
player->Play();
}
// Asynchronously plays the selected .wav file until the user
// clicks the Stop button.
void playLoopAsyncButton_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
ReportStatus( "Looping .wav file asynchronously." );
player->PlayLooping();
}
// Stops the currently playing .wav file, if any.
void stopButton_Click( System::Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
player->Stop();
ReportStatus( "Stopped by user." );
}
// Handler for the LoadCompleted event.
void player_LoadCompleted( Object^ /*sender*/, AsyncCompletedEventArgs^ /*e*/ )
{
String^ message = String::Format( "LoadCompleted: {0}", this->filepathTextbox->Text );
ReportStatus( message );
EnablePlaybackControls( true );
}
// Handler for the SoundLocationChanged event.
void player_LocationChanged( Object^ /*sender*/, EventArgs^ /*e*/ )
{
String^ message = String::Format( "SoundLocationChanged: {0}", player->SoundLocation );
ReportStatus( message );
}
void InitializeComponent()
{
this->filepathTextbox = gcnew System::Windows::Forms::TextBox;
this->selectFileButton = gcnew System::Windows::Forms::Button;
this->label1 = gcnew System::Windows::Forms::Label;
this->loadSyncButton = gcnew System::Windows::Forms::Button;
this->playOnceSyncButton = gcnew System::Windows::Forms::Button;
this->playOnceAsyncButton = gcnew System::Windows::Forms::Button;
this->stopButton = gcnew System::Windows::Forms::Button;
this->playLoopAsyncButton = gcnew System::Windows::Forms::Button;
this->statusBar = gcnew System::Windows::Forms::StatusBar;
this->loadAsyncButton = gcnew System::Windows::Forms::Button;
this->SuspendLayout();
//
// filepathTextbox
//
this->filepathTextbox->Anchor = (System::Windows::Forms::AnchorStyles)(System::Windows::Forms::AnchorStyles::Top | System::Windows::Forms::AnchorStyles::Left | System::Windows::Forms::AnchorStyles::Right);
this->filepathTextbox->Location = System::Drawing::Point( 7, 25 );
this->filepathTextbox->Name = "filepathTextbox";
this->filepathTextbox->Size = System::Drawing::Size( 263, 20 );
this->filepathTextbox->TabIndex = 1;
this->filepathTextbox->Text = "";
this->filepathTextbox->TextChanged += gcnew System::EventHandler( this, &SoundTestForm::filepathTextbox_TextChanged );
//
// selectFileButton
//
this->selectFileButton->Anchor = static_cast<AnchorStyles>(AnchorStyles::Top | AnchorStyles::Right);
this->selectFileButton->Location = System::Drawing::Point( 276, 25 );
this->selectFileButton->Name = "selectFileButton";
this->selectFileButton->Size = System::Drawing::Size( 23, 21 );
this->selectFileButton->TabIndex = 2;
this->selectFileButton->Text = "...";
this->selectFileButton->Click += gcnew System::EventHandler( this, &SoundTestForm::selectFileButton_Click );
//
// label1
//
this->label1->Location = System::Drawing::Point( 7, 7 );
this->label1->Name = "label1";
this->label1->Size = System::Drawing::Size( 145, 17 );
this->label1->TabIndex = 3;
this->label1->Text = ".wav path or URL:";
//
// loadSyncButton
//
this->loadSyncButton->Location = System::Drawing::Point( 7, 53 );
this->loadSyncButton->Name = "loadSyncButton";
this->loadSyncButton->Size = System::Drawing::Size( 142, 23 );
this->loadSyncButton->TabIndex = 4;
this->loadSyncButton->Text = "Load Synchronously";
this->loadSyncButton->Click += gcnew System::EventHandler( this, &SoundTestForm::loadSyncButton_Click );
//
// playOnceSyncButton
//
this->playOnceSyncButton->Location = System::Drawing::Point( 7, 86 );
this->playOnceSyncButton->Name = "playOnceSyncButton";
this->playOnceSyncButton->Size = System::Drawing::Size( 142, 23 );
this->playOnceSyncButton->TabIndex = 5;
this->playOnceSyncButton->Text = "Play Once Synchronously";
this->playOnceSyncButton->Click += gcnew System::EventHandler( this, &SoundTestForm::playOnceSyncButton_Click );
//
// playOnceAsyncButton
//
this->playOnceAsyncButton->Location = System::Drawing::Point( 149, 86 );
this->playOnceAsyncButton->Name = "playOnceAsyncButton";
this->playOnceAsyncButton->Size = System::Drawing::Size( 147, 23 );
this->playOnceAsyncButton->TabIndex = 6;
this->playOnceAsyncButton->Text = "Play Once Asynchronously";
this->playOnceAsyncButton->Click += gcnew System::EventHandler( this, &SoundTestForm::playOnceAsyncButton_Click );
//
// stopButton
//
this->stopButton->Location = System::Drawing::Point( 149, 109 );
this->stopButton->Name = "stopButton";
this->stopButton->Size = System::Drawing::Size( 147, 23 );
this->stopButton->TabIndex = 7;
this->stopButton->Text = "Stop";
this->stopButton->Click += gcnew System::EventHandler( this, &SoundTestForm::stopButton_Click );
//
// playLoopAsyncButton
//
this->playLoopAsyncButton->Location = System::Drawing::Point( 7, 109 );
this->playLoopAsyncButton->Name = "playLoopAsyncButton";
this->playLoopAsyncButton->Size = System::Drawing::Size( 142, 23 );
this->playLoopAsyncButton->TabIndex = 8;
this->playLoopAsyncButton->Text = "Loop Asynchronously";
this->playLoopAsyncButton->Click += gcnew System::EventHandler( this, &SoundTestForm::playLoopAsyncButton_Click );
//
// statusBar
//
this->statusBar->Location = System::Drawing::Point( 0, 146 );
this->statusBar->Name = "statusBar";
this->statusBar->Size = System::Drawing::Size( 306, 22 );
this->statusBar->SizingGrip = false;
this->statusBar->TabIndex = 9;
this->statusBar->Text = "(no status)";
//
// loadAsyncButton
//
this->loadAsyncButton->Location = System::Drawing::Point( 149, 53 );
this->loadAsyncButton->Name = "loadAsyncButton";
this->loadAsyncButton->Size = System::Drawing::Size( 147, 23 );
this->loadAsyncButton->TabIndex = 10;
this->loadAsyncButton->Text = "Load Asynchronously";
this->loadAsyncButton->Click += gcnew System::EventHandler( this, &SoundTestForm::loadAsyncButton_Click );
//
// SoundTestForm
//
this->ClientSize = System::Drawing::Size( 306, 168 );
this->Controls->Add( this->loadAsyncButton );
this->Controls->Add( this->statusBar );
this->Controls->Add( this->playLoopAsyncButton );
this->Controls->Add( this->stopButton );
this->Controls->Add( this->playOnceAsyncButton );
this->Controls->Add( this->playOnceSyncButton );
this->Controls->Add( this->loadSyncButton );
this->Controls->Add( this->label1 );
this->Controls->Add( this->selectFileButton );
this->Controls->Add( this->filepathTextbox );
this->MinimumSize = System::Drawing::Size( 310, 165 );
this->Name = "SoundTestForm";
this->SizeGripStyle = System::Windows::Forms::SizeGripStyle::Show;
this->Text = "Sound API Test Form";
this->ResumeLayout( false );
}
};
[STAThread]
int main()
{
Application::Run( gcnew SoundTestForm );
}
using System;
using System.Collections;
using System.ComponentModel;
using System.Diagnostics;
using System.Drawing;
using System.Media;
using System.Windows.Forms;
namespace SoundApiExample
{
public class SoundTestForm : System.Windows.Forms.Form
{
private System.Windows.Forms.Label label1;
private System.Windows.Forms.TextBox filepathTextbox;
private System.Windows.Forms.Button playOnceSyncButton;
private System.Windows.Forms.Button playOnceAsyncButton;
private System.Windows.Forms.Button playLoopAsyncButton;
private System.Windows.Forms.Button selectFileButton;
private System.Windows.Forms.Button stopButton;
private System.Windows.Forms.StatusBar statusBar;
private System.Windows.Forms.Button loadSyncButton;
private System.Windows.Forms.Button loadAsyncButton;
private SoundPlayer player;
public SoundTestForm()
{
// Initialize Forms Designer generated code.
InitializeComponent();
// Disable playback controls until a valid .wav file
// is selected.
EnablePlaybackControls(false);
// Set up the status bar and other controls.
InitializeControls();
// Set up the SoundPlayer object.
InitializeSound();
}
// Sets up the status bar and other controls.
private void InitializeControls()
{
// Set up the status bar.
StatusBarPanel panel = new StatusBarPanel();
panel.BorderStyle = StatusBarPanelBorderStyle.Sunken;
panel.Text = "Ready.";
panel.AutoSize = StatusBarPanelAutoSize.Spring;
this.statusBar.ShowPanels = true;
this.statusBar.Panels.Add(panel);
}
// Sets up the SoundPlayer object.
private void InitializeSound()
{
// Create an instance of the SoundPlayer class.
player = new SoundPlayer();
// Listen for the LoadCompleted event.
player.LoadCompleted += new AsyncCompletedEventHandler(player_LoadCompleted);
// Listen for the SoundLocationChanged event.
player.SoundLocationChanged += new EventHandler(player_LocationChanged);
}
private void selectFileButton_Click(object sender,
System.EventArgs e)
{
// Create a new OpenFileDialog.
OpenFileDialog dlg = new OpenFileDialog();
// Make sure the dialog checks for existence of the
// selected file.
dlg.CheckFileExists = true;
// Allow selection of .wav files only.
dlg.Filter = "WAV files (*.wav)|*.wav";
dlg.DefaultExt = ".wav";
// Activate the file selection dialog.
if (dlg.ShowDialog() == DialogResult.OK)
{
// Get the selected file's path from the dialog.
this.filepathTextbox.Text = dlg.FileName;
// Assign the selected file's path to
// the SoundPlayer object.
player.SoundLocation = filepathTextbox.Text;
}
}
// Convenience method for setting message text in
// the status bar.
private void ReportStatus(string statusMessage)
{
// If the caller passed in a message...
if (!string.IsNullOrEmpty(statusMessage))
{
// ...post the caller's message to the status bar.
this.statusBar.Panels[0].Text = statusMessage;
}
}
// Enables and disables play controls.
private void EnablePlaybackControls(bool enabled)
{
this.playOnceSyncButton.Enabled = enabled;
this.playOnceAsyncButton.Enabled = enabled;
this.playLoopAsyncButton.Enabled = enabled;
this.stopButton.Enabled = enabled;
}
private void filepathTextbox_TextChanged(object sender,
EventArgs e)
{
// Disable playback controls until the new .wav is loaded.
EnablePlaybackControls(false);
}
private void loadSyncButton_Click(object sender,
System.EventArgs e)
{
// Disable playback controls until the .wav is
// successfully loaded. The LoadCompleted event
// handler will enable them.
EnablePlaybackControls(false);
try
{
// Assign the selected file's path to
// the SoundPlayer object.
player.SoundLocation = filepathTextbox.Text;
// Load the .wav file.
player.Load();
}
catch (Exception ex)
{
ReportStatus(ex.Message);
}
}
private void loadAsyncButton_Click(System.Object sender,
System.EventArgs e)
{
// Disable playback controls until the .wav is
// successfully loaded. The LoadCompleted event
// handler will enable them.
EnablePlaybackControls(false);
try
{
// Assign the selected file's path to
// the SoundPlayer object.
player.SoundLocation = this.filepathTextbox.Text;
// Load the .wav file.
player.LoadAsync();
}
catch (Exception ex)
{
ReportStatus(ex.Message);
}
}
// Synchronously plays the selected .wav file once.
// If the file is large, UI response will be visibly
// affected.
private void playOnceSyncButton_Click(object sender,
System.EventArgs e)
{
ReportStatus("Playing .wav file synchronously.");
player.PlaySync();
ReportStatus("Finished playing .wav file synchronously.");
}
// Asynchronously plays the selected .wav file once.
private void playOnceAsyncButton_Click(object sender,
System.EventArgs e)
{
ReportStatus("Playing .wav file asynchronously.");
player.Play();
}
// Asynchronously plays the selected .wav file until the user
// clicks the Stop button.
private void playLoopAsyncButton_Click(object sender,
System.EventArgs e)
{
ReportStatus("Looping .wav file asynchronously.");
player.PlayLooping();
}
// Stops the currently playing .wav file, if any.
private void stopButton_Click(System.Object sender,
System.EventArgs e)
{
player.Stop();
ReportStatus("Stopped by user.");
}
// Handler for the LoadCompleted event.
private void player_LoadCompleted(object sender,
AsyncCompletedEventArgs e)
{
string message = String.Format("LoadCompleted: {0}",
this.filepathTextbox.Text);
ReportStatus(message);
EnablePlaybackControls(true);
}
// Handler for the SoundLocationChanged event.
private void player_LocationChanged(object sender, EventArgs e)
{
string message = String.Format("SoundLocationChanged: {0}",
player.SoundLocation);
ReportStatus(message);
}
private void playSoundFromResource(object sender, EventArgs e)
{
System.Reflection.Assembly a = System.Reflection.Assembly.GetExecutingAssembly();
System.IO.Stream s = a.GetManifestResourceStream("<AssemblyName>.chimes.wav");
SoundPlayer player = new SoundPlayer(s);
player.Play();
}
#region Windows Form Designer generated code
private void InitializeComponent()
{
this.filepathTextbox = new System.Windows.Forms.TextBox();
this.selectFileButton = new System.Windows.Forms.Button();
this.label1 = new System.Windows.Forms.Label();
this.loadSyncButton = new System.Windows.Forms.Button();
this.playOnceSyncButton = new System.Windows.Forms.Button();
this.playOnceAsyncButton = new System.Windows.Forms.Button();
this.stopButton = new System.Windows.Forms.Button();
this.playLoopAsyncButton = new System.Windows.Forms.Button();
this.statusBar = new System.Windows.Forms.StatusBar();
this.loadAsyncButton = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// filepathTextbox
//
this.filepathTextbox.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) | System.Windows.Forms.AnchorStyles.Right)));
this.filepathTextbox.Location = new System.Drawing.Point(7, 25);
this.filepathTextbox.Name = "filepathTextbox";
this.filepathTextbox.Size = new System.Drawing.Size(263, 20);
this.filepathTextbox.TabIndex = 1;
this.filepathTextbox.Text = "";
this.filepathTextbox.TextChanged += new System.EventHandler(this.filepathTextbox_TextChanged);
//
// selectFileButton
//
this.selectFileButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
this.selectFileButton.Location = new System.Drawing.Point(276, 25);
this.selectFileButton.Name = "selectFileButton";
this.selectFileButton.Size = new System.Drawing.Size(23, 21);
this.selectFileButton.TabIndex = 2;
this.selectFileButton.Text = "...";
this.selectFileButton.Click += new System.EventHandler(this.selectFileButton_Click);
//
// label1
//
this.label1.Location = new System.Drawing.Point(7, 7);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(145, 17);
this.label1.TabIndex = 3;
this.label1.Text = ".wav path or URL:";
//
// loadSyncButton
//
this.loadSyncButton.Location = new System.Drawing.Point(7, 53);
this.loadSyncButton.Name = "loadSyncButton";
this.loadSyncButton.Size = new System.Drawing.Size(142, 23);
this.loadSyncButton.TabIndex = 4;
this.loadSyncButton.Text = "Load Synchronously";
this.loadSyncButton.Click += new System.EventHandler(this.loadSyncButton_Click);
//
// playOnceSyncButton
//
this.playOnceSyncButton.Location = new System.Drawing.Point(7, 86);
this.playOnceSyncButton.Name = "playOnceSyncButton";
this.playOnceSyncButton.Size = new System.Drawing.Size(142, 23);
this.playOnceSyncButton.TabIndex = 5;
this.playOnceSyncButton.Text = "Play Once Synchronously";
this.playOnceSyncButton.Click += new System.EventHandler(this.playOnceSyncButton_Click);
//
// playOnceAsyncButton
//
this.playOnceAsyncButton.Location = new System.Drawing.Point(149, 86);
this.playOnceAsyncButton.Name = "playOnceAsyncButton";
this.playOnceAsyncButton.Size = new System.Drawing.Size(147, 23);
this.playOnceAsyncButton.TabIndex = 6;
this.playOnceAsyncButton.Text = "Play Once Asynchronously";
this.playOnceAsyncButton.Click += new System.EventHandler(this.playOnceAsyncButton_Click);
//
// stopButton
//
this.stopButton.Location = new System.Drawing.Point(149, 109);
this.stopButton.Name = "stopButton";
this.stopButton.Size = new System.Drawing.Size(147, 23);
this.stopButton.TabIndex = 7;
this.stopButton.Text = "Stop";
this.stopButton.Click += new System.EventHandler(this.stopButton_Click);
//
// playLoopAsyncButton
//
this.playLoopAsyncButton.Location = new System.Drawing.Point(7, 109);
this.playLoopAsyncButton.Name = "playLoopAsyncButton";
this.playLoopAsyncButton.Size = new System.Drawing.Size(142, 23);
this.playLoopAsyncButton.TabIndex = 8;
this.playLoopAsyncButton.Text = "Loop Asynchronously";
this.playLoopAsyncButton.Click += new System.EventHandler(this.playLoopAsyncButton_Click);
//
// statusBar
//
this.statusBar.Location = new System.Drawing.Point(0, 146);
this.statusBar.Name = "statusBar";
this.statusBar.Size = new System.Drawing.Size(306, 22);
this.statusBar.SizingGrip = false;
this.statusBar.TabIndex = 9;
this.statusBar.Text = "(no status)";
//
// loadAsyncButton
//
this.loadAsyncButton.Location = new System.Drawing.Point(149, 53);
this.loadAsyncButton.Name = "loadAsyncButton";
this.loadAsyncButton.Size = new System.Drawing.Size(147, 23);
this.loadAsyncButton.TabIndex = 10;
this.loadAsyncButton.Text = "Load Asynchronously";
this.loadAsyncButton.Click += new System.EventHandler(this.loadAsyncButton_Click);
//
// SoundTestForm
//
this.ClientSize = new System.Drawing.Size(306, 168);
this.Controls.Add(this.loadAsyncButton);
this.Controls.Add(this.statusBar);
this.Controls.Add(this.playLoopAsyncButton);
this.Controls.Add(this.stopButton);
this.Controls.Add(this.playOnceAsyncButton);
this.Controls.Add(this.playOnceSyncButton);
this.Controls.Add(this.loadSyncButton);
this.Controls.Add(this.label1);
this.Controls.Add(this.selectFileButton);
this.Controls.Add(this.filepathTextbox);
this.MinimumSize = new System.Drawing.Size(310, 165);
this.Name = "SoundTestForm";
this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Show;
this.Text = "Sound API Test Form";
this.ResumeLayout(false);
}
#endregion
[STAThread]
static void Main()
{
Application.Run(new SoundTestForm());
}
}
}
Imports System.Collections
Imports System.ComponentModel
Imports System.Diagnostics
Imports System.Drawing
Imports System.Media
Imports System.Windows.Forms
Public Class SoundTestForm
Inherits System.Windows.Forms.Form
Private label1 As System.Windows.Forms.Label
Private WithEvents filepathTextbox As System.Windows.Forms.TextBox
Private WithEvents playOnceSyncButton As System.Windows.Forms.Button
Private WithEvents playOnceAsyncButton As System.Windows.Forms.Button
Private WithEvents playLoopAsyncButton As System.Windows.Forms.Button
Private WithEvents selectFileButton As System.Windows.Forms.Button
Private WithEvents stopButton As System.Windows.Forms.Button
Private statusBar As System.Windows.Forms.StatusBar
Private WithEvents loadSyncButton As System.Windows.Forms.Button
Private WithEvents loadAsyncButton As System.Windows.Forms.Button
Private player As SoundPlayer
Public Sub New()
' Initialize Forms Designer generated code.
InitializeComponent()
' Disable playback controls until a valid .wav file
' is selected.
EnablePlaybackControls(False)
' Set up the status bar and other controls.
InitializeControls()
' Set up the SoundPlayer object.
InitializeSound()
End Sub
' Sets up the status bar and other controls.
Private Sub InitializeControls()
' Set up the status bar.
Dim panel As New StatusBarPanel
panel.BorderStyle = StatusBarPanelBorderStyle.Sunken
panel.Text = "Ready."
panel.AutoSize = StatusBarPanelAutoSize.Spring
Me.statusBar.ShowPanels = True
Me.statusBar.Panels.Add(panel)
End Sub
' Sets up the SoundPlayer object.
Private Sub InitializeSound()
' Create an instance of the SoundPlayer class.
player = New SoundPlayer
' Listen for the LoadCompleted event.
AddHandler player.LoadCompleted, AddressOf player_LoadCompleted
' Listen for the SoundLocationChanged event.
AddHandler player.SoundLocationChanged, AddressOf player_LocationChanged
End Sub
Private Sub selectFileButton_Click(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles selectFileButton.Click
' Create a new OpenFileDialog.
Dim dlg As New OpenFileDialog
' Make sure the dialog checks for existence of the
' selected file.
dlg.CheckFileExists = True
' Allow selection of .wav files only.
dlg.Filter = "WAV files (*.wav)|*.wav"
dlg.DefaultExt = ".wav"
' Activate the file selection dialog.
If dlg.ShowDialog() = System.Windows.Forms.DialogResult.OK Then
' Get the selected file's path from the dialog.
Me.filepathTextbox.Text = dlg.FileName
' Assign the selected file's path to the SoundPlayer object.
player.SoundLocation = filepathTextbox.Text
End If
End Sub
' Convenience method for setting message text in
' the status bar.
Private Sub ReportStatus(ByVal statusMessage As String)
' If the caller passed in a message...
If (statusMessage IsNot Nothing) AndAlso _
statusMessage <> [String].Empty Then
' ...post the caller's message to the status bar.
Me.statusBar.Panels(0).Text = statusMessage
End If
End Sub
' Enables and disables play controls.
Private Sub EnablePlaybackControls(ByVal enabled As Boolean)
Me.playOnceSyncButton.Enabled = enabled
Me.playOnceAsyncButton.Enabled = enabled
Me.playLoopAsyncButton.Enabled = enabled
Me.stopButton.Enabled = enabled
End Sub
Private Sub filepathTextbox_TextChanged(ByVal sender As Object, _
ByVal e As EventArgs) Handles filepathTextbox.TextChanged
' Disable playback controls until the new .wav is loaded.
EnablePlaybackControls(False)
End Sub
Private Sub loadSyncButton_Click(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles loadSyncButton.Click
' Disable playback controls until the .wav is successfully
' loaded. The LoadCompleted event handler will enable them.
EnablePlaybackControls(False)
Try
' Assign the selected file's path to the SoundPlayer object.
player.SoundLocation = filepathTextbox.Text
' Load the .wav file.
player.Load()
Catch ex As Exception
ReportStatus(ex.Message)
End Try
End Sub
Private Sub loadAsyncButton_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles loadAsyncButton.Click
' Disable playback controls until the .wav is successfully
' loaded. The LoadCompleted event handler will enable them.
EnablePlaybackControls(False)
Try
' Assign the selected file's path to the SoundPlayer object.
player.SoundLocation = Me.filepathTextbox.Text
' Load the .wav file.
player.LoadAsync()
Catch ex As Exception
ReportStatus(ex.Message)
End Try
End Sub
' Synchronously plays the selected .wav file once.
' If the file is large, UI response will be visibly
' affected.
Private Sub playOnceSyncButton_Click(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles playOnceSyncButton.Click
ReportStatus("Playing .wav file synchronously.")
player.PlaySync()
ReportStatus("Finished playing .wav file synchronously.")
End Sub
' Asynchronously plays the selected .wav file once.
Private Sub playOnceAsyncButton_Click(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles playOnceAsyncButton.Click
ReportStatus("Playing .wav file asynchronously.")
player.Play()
End Sub
' Asynchronously plays the selected .wav file until the user
' clicks the Stop button.
Private Sub playLoopAsyncButton_Click(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles playLoopAsyncButton.Click
ReportStatus("Looping .wav file asynchronously.")
player.PlayLooping()
End Sub
' Stops the currently playing .wav file, if any.
Private Sub stopButton_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles stopButton.Click
player.Stop()
ReportStatus("Stopped by user.")
End Sub
' Handler for the LoadCompleted event.
Private Sub player_LoadCompleted(ByVal sender As Object, _
ByVal e As AsyncCompletedEventArgs)
Dim message As String = [String].Format("LoadCompleted: {0}", _
Me.filepathTextbox.Text)
ReportStatus(message)
EnablePlaybackControls(True)
End Sub
' Handler for the SoundLocationChanged event.
Private Sub player_LocationChanged(ByVal sender As Object, _
ByVal e As EventArgs)
Dim message As String = [String].Format("SoundLocationChanged: {0}", _
player.SoundLocation)
ReportStatus(message)
End Sub
Private Sub playSoundFromResource(ByVal sender As Object, _
ByVal e As EventArgs)
Dim a As System.Reflection.Assembly = System.Reflection.Assembly.GetExecutingAssembly()
Dim s As System.IO.Stream = a.GetManifestResourceStream("<AssemblyName>.chimes.wav")
Dim player As SoundPlayer = New SoundPlayer(s)
player.Play()
End Sub
Private Sub InitializeComponent()
Me.filepathTextbox = New System.Windows.Forms.TextBox
Me.selectFileButton = New System.Windows.Forms.Button
Me.label1 = New System.Windows.Forms.Label
Me.loadSyncButton = New System.Windows.Forms.Button
Me.playOnceSyncButton = New System.Windows.Forms.Button
Me.playOnceAsyncButton = New System.Windows.Forms.Button
Me.stopButton = New System.Windows.Forms.Button
Me.playLoopAsyncButton = New System.Windows.Forms.Button
Me.statusBar = New System.Windows.Forms.StatusBar
Me.loadAsyncButton = New System.Windows.Forms.Button
Me.SuspendLayout()
'
' filepathTextbox
'
Me.filepathTextbox.Anchor = CType(System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left Or System.Windows.Forms.AnchorStyles.Right, System.Windows.Forms.AnchorStyles)
Me.filepathTextbox.Location = New System.Drawing.Point(7, 25)
Me.filepathTextbox.Name = "filepathTextbox"
Me.filepathTextbox.Size = New System.Drawing.Size(263, 20)
Me.filepathTextbox.TabIndex = 1
Me.filepathTextbox.Text = ""
'
' selectFileButton
'
Me.selectFileButton.Anchor = CType(System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Right, System.Windows.Forms.AnchorStyles)
Me.selectFileButton.Location = New System.Drawing.Point(276, 25)
Me.selectFileButton.Name = "selectFileButton"
Me.selectFileButton.Size = New System.Drawing.Size(23, 21)
Me.selectFileButton.TabIndex = 2
Me.selectFileButton.Text = "..."
'
' label1
'
Me.label1.Location = New System.Drawing.Point(7, 7)
Me.label1.Name = "label1"
Me.label1.Size = New System.Drawing.Size(145, 17)
Me.label1.TabIndex = 3
Me.label1.Text = ".wav path or URL:"
'
' loadSyncButton
'
Me.loadSyncButton.Location = New System.Drawing.Point(7, 53)
Me.loadSyncButton.Name = "loadSyncButton"
Me.loadSyncButton.Size = New System.Drawing.Size(142, 23)
Me.loadSyncButton.TabIndex = 4
Me.loadSyncButton.Text = "Load Synchronously"
'
' playOnceSyncButton
'
Me.playOnceSyncButton.Location = New System.Drawing.Point(7, 86)
Me.playOnceSyncButton.Name = "playOnceSyncButton"
Me.playOnceSyncButton.Size = New System.Drawing.Size(142, 23)
Me.playOnceSyncButton.TabIndex = 5
Me.playOnceSyncButton.Text = "Play Once Synchronously"
'
' playOnceAsyncButton
'
Me.playOnceAsyncButton.Location = New System.Drawing.Point(149, 86)
Me.playOnceAsyncButton.Name = "playOnceAsyncButton"
Me.playOnceAsyncButton.Size = New System.Drawing.Size(147, 23)
Me.playOnceAsyncButton.TabIndex = 6
Me.playOnceAsyncButton.Text = "Play Once Asynchronously"
'
' stopButton
'
Me.stopButton.Location = New System.Drawing.Point(149, 109)
Me.stopButton.Name = "stopButton"
Me.stopButton.Size = New System.Drawing.Size(147, 23)
Me.stopButton.TabIndex = 7
Me.stopButton.Text = "Stop"
'
' playLoopAsyncButton
'
Me.playLoopAsyncButton.Location = New System.Drawing.Point(7, 109)
Me.playLoopAsyncButton.Name = "playLoopAsyncButton"
Me.playLoopAsyncButton.Size = New System.Drawing.Size(142, 23)
Me.playLoopAsyncButton.TabIndex = 8
Me.playLoopAsyncButton.Text = "Loop Asynchronously"
'
' statusBar
'
Me.statusBar.Location = New System.Drawing.Point(0, 146)
Me.statusBar.Name = "statusBar"
Me.statusBar.Size = New System.Drawing.Size(306, 22)
Me.statusBar.SizingGrip = False
Me.statusBar.TabIndex = 9
Me.statusBar.Text = "(no status)"
'
' loadAsyncButton
'
Me.loadAsyncButton.Location = New System.Drawing.Point(149, 53)
Me.loadAsyncButton.Name = "loadAsyncButton"
Me.loadAsyncButton.Size = New System.Drawing.Size(147, 23)
Me.loadAsyncButton.TabIndex = 10
Me.loadAsyncButton.Text = "Load Asynchronously"
'
' SoundTestForm
'
Me.ClientSize = New System.Drawing.Size(306, 168)
Me.Controls.Add(loadAsyncButton)
Me.Controls.Add(statusBar)
Me.Controls.Add(playLoopAsyncButton)
Me.Controls.Add(stopButton)
Me.Controls.Add(playOnceAsyncButton)
Me.Controls.Add(playOnceSyncButton)
Me.Controls.Add(loadSyncButton)
Me.Controls.Add(label1)
Me.Controls.Add(selectFileButton)
Me.Controls.Add(filepathTextbox)
Me.MinimumSize = New System.Drawing.Size(310, 165)
Me.Name = "SoundTestForm"
Me.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Show
Me.Text = "Sound API Test Form"
Me.ResumeLayout(False)
End Sub
<STAThread()> _
Shared Sub Main()
Application.Run(New SoundTestForm)
End Sub
End Class
Keterangan
Kelas ini SoundPlayer menyediakan antarmuka sederhana untuk memuat dan memutar file .wav. Kelas SoundPlayer ini mendukung pemuatan file .wav dari jalur file, URL, Stream yang berisi file .wav, atau sumber daya yang disematkan yang berisi file .wav.
Untuk memutar suara menggunakan SoundPlayer kelas , konfigurasikan SoundPlayer dengan jalur ke file .wav dan panggil salah satu metode putar. Anda dapat mengidentifikasi file .wav untuk dimainkan dengan menggunakan salah satu konstruktor atau dengan mengatur SoundLocation properti atau Stream . File dapat dimuat sebelum diputar dengan menggunakan salah satu metode pemuatan, atau pemuatan dapat ditangguhkan sampai salah satu metode pemutaran dipanggil. File SoundPlayer yang dikonfigurasi untuk memuat file .wav dari Stream url atau harus memuat file .wav ke dalam memori sebelum pemutaran dimulai.
Anda dapat memuat atau memutar file .wav secara sinkron atau asinkron. Jika Anda memanggil metode pemuatan atau pemutaran sinkron, utas panggilan akan menunggu hingga metode kembali, yang dapat menyebabkan lukisan dan peristiwa lain terganggu. Memanggil metode pemuatan atau pemutaran asinkron akan memungkinkan utas panggilan berlanjut tanpa gangguan. Untuk informasi selengkapnya tentang panggilan metode asinkron, lihat Cara: Menjalankan Operasi di Latar Belakang.
SoundPlayer Setelah selesai memuat file .wav, file tersebut akan memunculkan LoadCompleted peristiwa. Anda dapat memeriksa AsyncCompletedEventArgs di penanganan aktivitas Anda untuk menentukan apakah beban berhasil atau gagal. Peristiwa SoundLocationChanged dimunculkan saat sumber audio diatur ke jalur file atau URL baru. Peristiwa StreamChanged dimunculkan saat sumber audio diatur ke yang baru Stream. Untuk informasi selengkapnya tentang cara menangani peristiwa, lihat Menangani dan Menaikkan Peristiwa.
Untuk informasi selengkapnya tentang SoundPlayer, lihat Gambaran Umum Kelas SoundPlayer.
Catatan
Kelas SoundPlayer tidak dapat memainkan jenis file lain, seperti .wma atau .mp3. Jika Anda ingin memutar jenis file lain, Anda dapat menggunakan kontrol Pemutar Media Windows. Untuk informasi selengkapnya, lihat Menggunakan Kontrol Pemutar Media Windows dalam Solusi .NET Framework dan Referensi Model Objek Pemutar Media Windows untuk Visual Basic .NET dan C# di SDK Pemutar Media Windows.
Konstruktor
| SoundPlayer() |
Menginisialisasi instans baru kelas SoundPlayer. |
| SoundPlayer(SerializationInfo, StreamingContext) |
Kedaluwarsa.
Menginisialisasi instans baru kelas SoundPlayer. |
| SoundPlayer(Stream) |
Menginisialisasi instans SoundPlayer baru kelas , dan melampirkan file .wav dalam yang ditentukan Stream. |
| SoundPlayer(String) |
Menginisialisasi instans SoundPlayer baru kelas, dan melampirkan file .wav yang ditentukan. |
Properti
| CanRaiseEvents |
Mendapatkan nilai yang menunjukkan apakah komponen dapat menaikkan peristiwa. (Diperoleh dari Component) |
| Container |
IContainer Mendapatkan yang berisi Component. (Diperoleh dari Component) |
| DesignMode |
Mendapatkan nilai yang menunjukkan apakah Component saat ini dalam mode desain. (Diperoleh dari Component) |
| Events |
Mendapatkan daftar penanganan aktivitas yang dilampirkan ke ini Component. (Diperoleh dari Component) |
| IsLoadCompleted |
Mendapatkan nilai yang menunjukkan apakah pemuatan file .wav telah berhasil diselesaikan. |
| LoadTimeout |
Mendapatkan atau mengatur waktu, dalam milidetik, di mana file .wav harus dimuat. |
| Site |
Mendapatkan atau mengatur ISite dari Component. (Diperoleh dari Component) |
| SoundLocation |
Mendapatkan atau mengatur jalur file atau URL file .wav untuk dimuat. |
| Stream |
Mendapatkan atau mengatur Stream tempat untuk memuat file .wav. |
| Tag |
Mendapatkan atau mengatur Object yang berisi data tentang SoundPlayer. |
Metode
| CreateObjRef(Type) |
Membuat objek yang berisi semua informasi relevan yang diperlukan untuk menghasilkan proksi yang digunakan untuk berkomunikasi dengan objek jarak jauh. (Diperoleh dari MarshalByRefObject) |
| Dispose() |
Merilis semua sumber daya yang Componentdigunakan oleh . (Diperoleh dari Component) |
| Dispose(Boolean) |
Merilis sumber daya tidak terkelola yang digunakan oleh Component dan secara opsional merilis sumber daya terkelola. (Diperoleh dari Component) |
| Equals(Object) |
Menentukan apakah objek yang ditentukan sama dengan objek saat ini. (Diperoleh dari Object) |
| GetHashCode() |
Berfungsi sebagai fungsi hash default. (Diperoleh dari Object) |
| GetLifetimeService() |
Kedaluwarsa.
Mengambil objek layanan seumur hidup saat ini yang mengontrol kebijakan seumur hidup untuk instans ini. (Diperoleh dari MarshalByRefObject) |
| GetService(Type) |
Mengembalikan objek yang mewakili layanan yang disediakan oleh Component atau oleh Container. (Diperoleh dari Component) |
| GetType() |
Mendapatkan dari instans Type saat ini. (Diperoleh dari Object) |
| InitializeLifetimeService() |
Kedaluwarsa.
Mendapatkan objek layanan seumur hidup untuk mengontrol kebijakan seumur hidup untuk instans ini. (Diperoleh dari MarshalByRefObject) |
| Load() |
Memuat suara secara sinkron. |
| LoadAsync() |
Memuat file .wav dari aliran atau sumber daya Web menggunakan utas baru. |
| MemberwiseClone() |
Membuat salinan dangkal dari saat ini Object. (Diperoleh dari Object) |
| MemberwiseClone(Boolean) |
Membuat salinan dangkal objek saat ini MarshalByRefObject . (Diperoleh dari MarshalByRefObject) |
| OnLoadCompleted(AsyncCompletedEventArgs) |
Memunculkan kejadian LoadCompleted. |
| OnSoundLocationChanged(EventArgs) |
Memunculkan kejadian SoundLocationChanged. |
| OnStreamChanged(EventArgs) |
Memunculkan kejadian StreamChanged. |
| Play() |
Memutar file .wav menggunakan utas baru, dan memuat file .wav terlebih dahulu jika belum dimuat. |
| PlayLooping() |
Memutar dan mengulang file .wav menggunakan utas baru, dan memuat file .wav terlebih dahulu jika belum dimuat. |
| PlaySync() |
Memutar file .wav dan memuat file .wav terlebih dahulu jika belum dimuat. |
| Stop() |
Menghentikan pemutaran suara jika pemutaran terjadi. |
| ToString() |
Mengembalikan yang String berisi nama Component, jika ada. Metode ini tidak boleh ditimpa. (Diperoleh dari Component) |
Acara
| Disposed |
Terjadi ketika komponen dibuang oleh panggilan ke Dispose() metode . (Diperoleh dari Component) |
| LoadCompleted |
Terjadi ketika file .wav berhasil atau tidak berhasil dimuat. |
| SoundLocationChanged |
Terjadi ketika jalur sumber audio baru untuk ini SoundPlayer telah diatur. |
| StreamChanged |
Terjadi ketika sumber audio baru Stream untuk ini SoundPlayer telah diatur. |
Implementasi Antarmuka Eksplisit
| ISerializable.GetObjectData(SerializationInfo, StreamingContext) |
Untuk deskripsi anggota ini, lihat GetObjectData(SerializationInfo, StreamingContext) metode . |
Berlaku untuk
Lihat juga
Berkolaborasi dengan kami di GitHub
Sumber untuk konten ini dapat ditemukan di GitHub, yang juga dapat Anda gunakan untuk membuat dan meninjau masalah dan menarik permintaan. Untuk informasi selengkapnya, lihat panduan kontributor kami.
Saran dan Komentar
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