using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace BackgroundMusic_Demo { public partial class Form1 : Form { LYFZ.PlayMusicMedia.FormPlayMusic frm = new LYFZ.PlayMusicMedia.FormPlayMusic(); public Form1() { InitializeComponent(); this.Load += Form1_Load; // frm = new LYFZ.PlayMusicMedia.FormPlayMusic(); } void Form1_Load(object sender, EventArgs e) { } private void button1_Click(object sender, EventArgs e) { if (frm != null) { frm.Play(); } } private void checkBox1_CheckedChanged(object sender, EventArgs e) { frm.IsMuted = checkBox1.Checked; } private void trackBar2_Scroll(object sender, EventArgs e) { frm.SetMediaVol(trackBar2.Value); } private void button2_Click(object sender, EventArgs e) { frm.Stop(); } private void button3_Click(object sender, EventArgs e) { frm.Pause(); } } }