C＃-为什么播放2种声音时我的窗体最小化？

分类：编程问答

如何解决C＃-为什么播放2种声音时我的窗体最小化？

我有一个问题：我有一个主要的窗体，该窗体在加载时播放音乐：并且我创建了一个函数，当按下按钮时可以播放声音：最小化了下一个窗体及其内容（从config.cs到每个格式），应该是全屏显示，并且我想在播放声音时将其保持全屏显示，而不是将其最小化。

代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Media;
using System.IO;
using System.Runtime.InteropServices;

namespace Poker
{
    public partial class Main : Form
    {
        [DllImport("wmp.dll")]
        static extern Int32 mciSendString(string command,StringBuilder buffer,int bufferSize,IntPtr hwndCallback);
        //LoadForm lform = new LoadForm();
        Config config = new Config();
        Settings settings = new Settings();


        public Main()
        {
            InitializeComponent();
        }

        public void Main_Load(object sender,EventArgs e)
        {
            FormBorderStyle = FormBorderStyle.None;
            WindowState = FormWindowState.Maximized;

            new System.Threading.Thread(() =>
            {
                try
                {
                    player1.PlayLooping();
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message,"Impossible de jouer le morceau.",MessageBoxButtons.OK,MessageBoxIcon.Error);
                }
            }).Start();
        }

        private void btnJouer_Click_1(object sender,EventArgs e)
        {
            btnClick();
            this.Hide();
            config.Show();
        }

声音功能：

void btnClick()
        {
            new System.Threading.Thread(() =>
            {
                try
                {
                    var _bt = new System.Windows.Media.MediaPlayer();
                    _bt.Open(new System.Uri(Environment.CurrentDirectory + "\\sfx\\button.wav"));
                    _bt.Play();
                }
                catch(Exception xe)
                {
                    MessageBox.Show(xe.Message,"Impossible de jouer ce son.",MessageBoxIcon.Error);
                }
                
            }).Start();
            
        }

主要形式代码：

namespace Poker
{
    partial class Main
    {
        /// <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()
        {
            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Main));
            this.titre = new System.Windows.Forms.TableLayoutPanel();
            this.label1 = new System.Windows.Forms.Label();
            this.btnQuitter = new System.Windows.Forms.Button();
            this.btnJouer = new System.Windows.Forms.Button();
            this.btnPara = new System.Windows.Forms.Button();
            this.titre.SuspendLayout();
            this.SuspendLayout();
            // 
            // titre
            // 
            this.titre.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
            | System.Windows.Forms.AnchorStyles.Right)));
            this.titre.AutoSize = true;
            this.titre.BackColor = System.Drawing.Color.Transparent;
            this.titre.ColumnCount = 1;
            this.titre.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent,50F));
            this.titre.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent,50F));
            this.titre.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute,20F));
            this.titre.Controls.Add(this.label1,0);
            this.titre.Location = new System.Drawing.Point(0,0);
            this.titre.Name = "titre";
            this.titre.RowCount = 1;
            this.titre.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent,50F));
            this.titre.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent,50F));
            this.titre.Size = new System.Drawing.Size(1920,300);
            this.titre.TabIndex = 0;
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Font = new System.Drawing.Font("Segoe UI Semibold",36F,((System.Drawing.FontStyle)((System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Underline))),System.Drawing.GraphicsUnit.Point,((byte)(0)));
            this.label1.ForeColor = System.Drawing.Color.White;
            this.label1.Location = new System.Drawing.Point(3,0);
            this.label1.MinimumSize = new System.Drawing.Size(100,100);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(225,100);
            this.label1.TabIndex = 0;
            this.label1.Text = "Poker";
            this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
            // 
            // btnQuitter
            // 
            this.btnQuitter.BackColor = System.Drawing.Color.Transparent;
            this.btnQuitter.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
            this.btnQuitter.Font = new System.Drawing.Font("Segoe UI",16F,System.Drawing.FontStyle.Bold,((byte)(0)));
            this.btnQuitter.ForeColor = System.Drawing.Color.White;
            this.btnQuitter.Location = new System.Drawing.Point(258,754);
            this.btnQuitter.Name = "btnQuitter";
            this.btnQuitter.Size = new System.Drawing.Size(1361,95);
            this.btnQuitter.TabIndex = 3;
            this.btnQuitter.Text = "Quitter";
            this.btnQuitter.UseVisualStyleBackColor = false;
            this.btnQuitter.Click += new System.EventHandler(this.btnQuitter_Click);
            // 
            // btnJouer
            // 
            this.btnJouer.BackColor = System.Drawing.Color.Transparent;
            this.btnJouer.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
            this.btnJouer.Font = new System.Drawing.Font("Segoe UI",((byte)(0)));
            this.btnJouer.ForeColor = System.Drawing.Color.White;
            this.btnJouer.Location = new System.Drawing.Point(258,489);
            this.btnJouer.Name = "btnJouer";
            this.btnJouer.Size = new System.Drawing.Size(1361,95);
            this.btnJouer.TabIndex = 4;
            this.btnJouer.Text = "Jouer";
            this.btnJouer.UseVisualStyleBackColor = false;
            this.btnJouer.Click += new System.EventHandler(this.btnJouer_Click_1);
            // 
            // btnPara
            // 
            this.btnPara.BackColor = System.Drawing.Color.Transparent;
            this.btnPara.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
            this.btnPara.Font = new System.Drawing.Font("Segoe UI",((byte)(0)));
            this.btnPara.ForeColor = System.Drawing.Color.White;
            this.btnPara.Location = new System.Drawing.Point(258,621);
            this.btnPara.Name = "btnPara";
            this.btnPara.Size = new System.Drawing.Size(1361,95);
            this.btnPara.TabIndex = 5;
            this.btnPara.Text = "Paramètres";
            this.btnPara.UseVisualStyleBackColor = false;
            this.btnPara.Click += new System.EventHandler(this.btnPara_Click);
            // 
            // Main
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(9F,20F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.BackgroundImage = ((System.Drawing.Image)(resources.GetObject("$this.BackgroundImage")));
            this.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Stretch;
            this.ClientSize = new System.Drawing.Size(1920,1046);
            this.Controls.Add(this.btnPara);
            this.Controls.Add(this.btnJouer);
            this.Controls.Add(this.btnQuitter);
            this.Controls.Add(this.titre);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
            this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
            this.Name = "Main";
            this.Text = "Poker";
            this.Load += new System.EventHandler(this.Main_Load);
            this.titre.ResumeLayout(false);
            this.titre.PerformLayout();
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.TableLayoutPanel titre;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.Button btnQuitter;
        private System.Windows.Forms.Button btnJouer;
        private System.Windows.Forms.Button btnPara;
    }
}

目标格式：（config.cs）

namespace Poker
{
    partial class Config
    {
        /// <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.button1 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(525,270);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(113,65);
            this.button1.TabIndex = 0;
            this.button1.Text = "button1";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // Config
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(9F,20F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(800,450);
            this.Controls.Add(this.button1);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
            this.Name = "Config";
            this.Text = "Configuration";
            this.Load += new System.EventHandler(this.Config_Load);
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.Button button1;
    }
}

解决方法

问题在于您创建了一个新线程，并且程序进程切换到第二个线程。

解决方法：创建一个MediaPlayer对象，并在需要时切换歌曲。 或者：创建两个单独的MediaPlayers，并在需要时暂停一个。

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