C# MediaPlayer 播放声音示例源码

【实例截图】

退出时候输入 zs

【核心代码】

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.IO.Ports;
using System.Configuration;
using Microsoft.Win32;
using System.Reflection;

namespace Game2
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        //String m_strRunPath = System.IO.Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName);
        public string m_strRunPath = AppDomain.CurrentDomain.BaseDirectory   "files\\";
        public SerialPort serialPort;//串口对象类
        private MediaPlayer m_Media = new MediaPlayer();
        private System.Windows.Threading.DispatcherTimer  m_Timer;
        private bool m_bSerival = false;
        public MainWindow()
        {
            InitializeComponent();
        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            string sCOM = System.Configuration.ConfigurationSettings.AppSettings["串口号"];
            string bRun = System.Configuration.ConfigurationSettings.AppSettings["AutoRun"];

            if (bRun == "0")
            {
                RegRun("Game2", false);
            } 
            else if(bRun == "1")
            {
                RegRun("Game2");
            }

            btnImage.ImageSource = new BitmapImage(new Uri(AppDomain.CurrentDomain.BaseDirectory   "btn.png", UriKind.Relative));


            SetFullScreen();
            SetBackgroundImage( AppDomain.CurrentDomain.BaseDirectory "back.jpg");
            if (!InitCOM(sCOM))
            {
                MessageBox.Show("串口异常，当前配置串口"   sCOM   "请检查配置和设备连接。", "警告");
                return;
            }
            else
            {
                m_bSerival = true;
                m_Timer = new System.Windows.Threading.DispatcherTimer();
                m_Timer.Interval = TimeSpan.FromSeconds(1);
                m_Timer.Tick  = dtimer_Tick;
                //m_Timer.Start();
            } 
            TextBox.Focus();
        }

        void dtimer_Tick(object sender, EventArgs e)
        {
            SendCommand("0xaa");
        }

        private void SetFullScreen()
        {
            this.Left = 0.0;
            this.Top = 0.0;
            this.Width = System.Windows.SystemParameters.PrimaryScreenWidth;
            this.Height = System.Windows.SystemParameters.PrimaryScreenHeight;

            this.WindowStyle = System.Windows.WindowStyle.None;
            this.ResizeMode = System.Windows.ResizeMode.NoResize;
            //this.Topmost = true;
        }


        private void SetBackgroundImage(string path)
        {
            try
            {
                ImageBrush b = new ImageBrush();
                b.ImageSource = new BitmapImage(new Uri(path, UriKind.RelativeOrAbsolute));
                this.Background = b;
            }
            catch { };
        }

        private void BtnSelect_Click(object sender, RoutedEventArgs e)
        {
            string strText = TextBox.Text;
            if (strText == "")
            {
                return;
            }
            string[] strFiles = System.IO.Directory.GetFileSystemEntries(m_strRunPath);
            if (strFiles.Length > 0)
            {
                for (int i = 0; i < strFiles.Length; i  )
                {
                    string strTemp = strFiles[i];
                    string str1 = strTemp.Substring(0, strTemp.Length - 4);
                    string str2 = str1.Remove(0, m_strRunPath.Length);
                    if (strText == str2)
                    {
                        SendCommand("0xaa");
                        if (System.IO.File.Exists(strTemp))
                        {
                            //转换成小写一并处理
                            string strFileStyle = strTemp.Substring(strTemp.Length - 3).ToString().ToLower();
                            //如果mp3文件则直接播放音频不弹出相应窗口
                            if (strFileStyle == "mp3")
                            {
                                m_Media.Open(new Uri(strTemp, UriKind.Relative));
                                m_Media.Play();
                                return;
                            }
                        }
                        WindowPop pop = new WindowPop();
                        pop.m_FilePath = strTemp;
                        pop.ShowDialog();
                        return;
                    }
                }
            }
            else 
            {
                MessageBox.Show("files中没有找到任何文件。","警告");
                return;
            }

            m_Media.Open(new Uri(AppDomain.CurrentDomain.BaseDirectory "xxx.mp3", UriKind.Relative));
            m_Media.Play();

            MessageBox.Show("非法输入！", "警告");
            m_Media.Stop();
        }

        private void Window_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Escape)
            {
                WindowInput WinInput = new WindowInput();
                WinInput.ShowDialog();
            }
        }

        /// 串口接收通信配置方法
        /// <param name="PortName">端口名称</param>
        public bool InitCOM(string PortName)
        {
            serialPort = new SerialPort(PortName, 9600, Parity.None, 8, StopBits.One);
            serialPort.DataReceived  = new SerialDataReceivedEventHandler(serialPort_DataReceived);//DataReceived事件委托
            serialPort.ReceivedBytesThreshold = 1;
            serialPort.RtsEnable = true;
            return OpenPort();//串口打开
        }
        /// 数据接收事件
        private void serialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
        {
            byte[] readBuffer = new byte[serialPort.ReadBufferSize];
            serialPort.Read(readBuffer, 0, readBuffer.Length);
            string str = System.Text.Encoding.Default.GetString(readBuffer);
            MessageBox.Show(str);
        }
        //打开串口的方法
        public bool OpenPort()
        {
            try//这里写成异常处理的形式以免串口打不开程序崩溃
            {
                serialPort.Open();
            }
            catch { }
            if (serialPort.IsOpen)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        //向串口发送数据
        public void SendCommand(string CommandString)
        {
            try
            {
                byte[] WriteBuffer1 = Encoding.ASCII.GetBytes(CommandString);
                byte[] WriteBuffer = new byte[] { 0xaa };
                serialPort.Write(WriteBuffer, 0, WriteBuffer.Length);
            }
            catch { }
            
        }


        private bool AltDown = false;
        private void Window_PreviewKeyDown(object sender, KeyEventArgs e)
        {
            if (e.SystemKey == Key.LeftAlt || e.SystemKey == Key.RightAlt)
            {
                 AltDown = true;
            }
            else if (e.SystemKey == Key.F4 && AltDown)
            {
                e.Handled = true;
            }


            if (e.Key == Key.R  && (Keyboard.Modifiers & (ModifierKeys.Control | ModifierKeys.Shift)) == (ModifierKeys.Control | ModifierKeys.Shift))
            {
                //MessageBox.Show("CTRL   SHIFT   TAB");
                if (m_bSerival)
                {
                    SendCommand("0xaa");
                }
                else 
                {
                    MessageBox.Show("复位失败，请检查串口连接和通讯。");
                }
            }

        }

        private void Window_PreviewKeyUp(object sender, KeyEventArgs e)
        {
            if (e.SystemKey == Key.LeftAlt || e.SystemKey == Key.RightAlt)
            {
               AltDown = false;
            }
        }



        void RegRun(string appName, bool f = true)
        {
            RegistryKey HKCU = Registry.CurrentUser;
            RegistryKey Run = HKCU.OpenSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion\Run", true);
            bool b = false;
            foreach (string i in Run.GetValueNames())
            {
                if (i == appName)
                {
                    b = true;
                    break;
                }
            }
            try
            {
                if (f)
                {
                    Run.SetValue(appName, Assembly.GetExecutingAssembly().Location);
                }
                else
                {
                    Run.DeleteValue(appName);
                }
            }
            catch
            { }
            HKCU.Close();
        }
    }
}