다음을 통해 공유

방법: Windows Form에서 비동기적으로 소리 로드

  • 아티클

다음 코드 예제는 URL에서 소리를 비동기적으로 로드한 다음 새 스레드에서 재생합니다.

예제

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Media;
using System.Windows.Forms;

namespace SoundPlayerLoadAsyncExample
{
    public class Form1 : Form
    {
        private SoundPlayer Player = new SoundPlayer();

        public Form1()
        {
            InitializeComponent();

            this.Player.LoadCompleted += new AsyncCompletedEventHandler(Player_LoadCompleted);
        }

        private void playSoundButton_Click(object sender, EventArgs e)
        {
            this.LoadAsyncSound();
        }

        public void LoadAsyncSound()
        {
            try
            {
                // Replace this file name with a valid file name.
                this.Player.SoundLocation = "http://www.tailspintoys.com/sounds/stop.wav";
                this.Player.LoadAsync();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Error loading sound");
            }
        }

        // This is the event handler for the LoadCompleted event.
        void Player_LoadCompleted(object sender, AsyncCompletedEventArgs e)
        {
            if (Player.IsLoadCompleted)
            {
                try
                {
                    this.Player.Play();
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "Error playing sound");
                }
            }
        }

        private Button playSoundButton;

        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.playSoundButton = new System.Windows.Forms.Button();
            this.SuspendLayout();
            //
            // playSoundButton
            //
            this.playSoundButton.Location = new System.Drawing.Point(106, 112);
            this.playSoundButton.Name = "playSoundButton";
            this.playSoundButton.Size = new System.Drawing.Size(75, 23);
            this.playSoundButton.TabIndex = 0;
            this.playSoundButton.Text = "Play Sound";
            this.playSoundButton.Click += new System.EventHandler(this.playSoundButton_Click);
            //
            // Form1
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(292, 273);
            this.Controls.Add(this.playSoundButton);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);
        }

        #endregion

    }

    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.Run(new Form1());
        }
    }
}

Imports System.Media
Imports System.Windows.Forms

Public Class Form1
    Inherits System.Windows.Forms.Form

    Friend WithEvents playSoundButton As System.Windows.Forms.Button
    Private WithEvents Player As New SoundPlayer

    Sub New()

        Me.InitializeComponent()

    End Sub

    Private Sub playSoundButton_Click( _
        ByVal sender As System.Object, _
        ByVal e As System.EventArgs) _
        Handles playSoundButton.Click

        ' Replace this file name with a valid file name.
        Me.Player.SoundLocation = "http://www.tailspintoys.com/sounds/stop.wav"
        Me.Player.LoadAsync()

    End Sub

    Private Sub Player_LoadCompleted( _
        ByVal sender As Object, _
        ByVal e As _
        System.ComponentModel.AsyncCompletedEventArgs) _
        Handles Player.LoadCompleted

        If Me.Player.IsLoadCompleted Then
            Me.Player.Play()
        End If

    End Sub

    'Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing AndAlso components IsNot Nothing Then
            components.Dispose()
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.playSoundButton = New System.Windows.Forms.Button
        Me.SuspendLayout()
        '
        'playSoundButton
        '
        Me.playSoundButton.Location = New System.Drawing.Point(105, 107)
        Me.playSoundButton.Name = "playSoundButton"
        Me.playSoundButton.Size = New System.Drawing.Size(75, 23)
        Me.playSoundButton.TabIndex = 0
        Me.playSoundButton.Text = "Play Sound"
        Me.playSoundButton.UseVisualStyleBackColor = True
        '
        'Form1
        '
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(292, 273)
        Me.Controls.Add(Me.playSoundButton)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)

    End Sub

    <STAThread()> _
    Shared Sub Main()
        Application.EnableVisualStyles()
        Application.Run(New Form1())
    End Sub

End Class

코드 컴파일

이 예제에는 다음 사항이 필요합니다.

  • System 및 System.Windows.Forms 어셈블리에 대한 참조

  • 파일 이름 "http://www.tailspintoys.com/sounds/stop.wav"를 유효한 파일 이름으로 바꿉니다.

강력한 프로그래밍

파일 작업을 적절한 예외 처리 블록 내에 묶어야 합니다.

다음 조건에서 예외가 발생합니다.

.NET Framework 보안

파일 이름을 바탕으로 파일 내용을 판단하면 안 됩니다. 예를 들어 Form1.vb 파일이 Visual Basic 소스 파일이 아닐 수도 있습니다. 애플리케이션에서 데이터를 사용하기 전에 모든 입력을 확인해야 합니다.

참고 항목