WPF 播放系統提示聲音

using System.Runtime.InteropServices;

        //發出不同類型的聲音的參數如下：  
        //Ok = 0x00000000,  
        //Error = 0x00000010,  
        //Question = 0x00000020,  
        //Warning = 0x00000030,  
        //Information = 0x00000040  
        [DllImport("user32.dll")]
        public static extern int MessageBeep(uint uType);

        private void Button1_Click(object sender, RoutedEventArgs e)
        {
            // 然後在程式中調用
            uint beep = 0x00000000;
            MessageBeep(beep);
        }

        private void Button2_Click(object sender, RoutedEventArgs e)
        {
            uint beep = 0x00000010;
            MessageBeep(beep);
        }

        private void Button3_Click(object sender, RoutedEventArgs e)
        {
            uint beep = 0x00000020;
            MessageBeep(beep);
        }

        private void Button4_Click(object sender, RoutedEventArgs e)
        {
            uint beep = 0x00000030;
            MessageBeep(beep);
        }

        private void Button5_Click(object sender, RoutedEventArgs e)
        {
            uint beep = 0x00000040;
            MessageBeep(beep);
        }