Windows 窗体在基本操作 c# 后没有响应

问题描述

这是我的第一个 C# 程序，很抱歉没有经验。

这个 Windows 窗体应用程序旨在成为一个 mp3 播放器，从其目录中收集 mp3 文件并一个一个播放。

每当我按下“BtnNext”按钮播放下一首歌曲时，应用程序的 cpu 使用率会高达 20%，然后应用程序停止响应。几秒钟后，一切恢复正常。

作为后台应用，我希望它尽可能使用最少的资源

应用代码：

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.Threading;
using System.Windows.Forms;
using WMPLib;
using System.IO;

namespace SongReader
{
    public partial class Form1 : Form
    {


        WMPLib.WindowsMediaPlayer wplayer = new WMPLib.WindowsMediaPlayer();
        string[] music = { };



        public Form1()
        {
            InitializeComponent();


            ThreadPool.QueueUserWorkItem(GetSongs);
            //in theory this executes GetSongs on another Thread,so that the app can still be functional



            wplayer.MediaChange += Songdisplay; //calls Songdisplay function whenever the media that's being played changes
        }

        public void GetSongs(object state)
        {

            string dir = Directory.GetCurrentDirectory();
            music = Directory.GetFiles(dir,"*.mp3",SearchOption.AllDirectories); //takes all mp3 files from its directory
            wplayer.settings.setMode("loop",true);
            foreach (string file in music)
            {
                WMPLib.IWMPMedia media = wplayer.newMedia(file);
                wplayer.currentPlaylist.appendItem(media);
            }

            notifyIcon.Visible = false;
            wplayer.settings.volume = Convert.ToInt32(numericupdown.Value);

        }
        
        //from this point on there are just the buttons

        private void BtnPlay_Click(object sender,EventArgs e)
        {
            wplayer.controls.play(); 
        }

        

        private void BtnBackground_Click(object sender,EventArgs e)
        {
            Hide();
            notifyIcon.Visible = true;//minimizes the app to the system tray
        }

        private void NotifyIcon_MouseClick(object sender,MouseEventArgs e)
        {
            Show();
            notifyIcon.Visible = false; //makes the app window visible 
        }

        private void BtnStop_MouseClick(object sender,MouseEventArgs e)
        {
            wplayer.controls.pause();
        }

        private void BtnPrevIoUs_MouseClick(object sender,MouseEventArgs e)
        {
            wplayer.controls.prevIoUs();
        }

        private void BtnNext_MouseClick(object sender,MouseEventArgs e)
        {
            wplayer.controls.next();
        }

        private void BtnResetSong_MouseClick(object sender,MouseEventArgs e)
        {
            wplayer.controls.stop();
        }

        private void numericupdown_ValueChanged(object sender,EventArgs e)
        {
            wplayer.settings.volume = Convert.ToInt32(numericupdown.Value); //volume controller
        }

        private void Songdisplay(object pdispMedia)
        {
            txtSongdisplay.Text = wplayer.currentMedia.name; //shows the name of the song that just started
        }

    }
}

我不知道这是否有帮助，但这是应用程序的外观（三个下划线将更改为歌曲名称）

经过调试后，我发现“IL_STUB_CLRtoCOM()”在程序没有响应时占用了大量cpu，但我不知道是什么原因造成的

解决方法

暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！

如果你已经找到好的解决方法，欢迎将解决方案带上本链接一起发送给小编。

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