private void chkPlayMusic_CheckedChanged(object sender, EventArgs e)
 {
     if (chkPlayMusic.Checked)
     {
         SoundCollection.ChangeMusicVolume(0);
         sldMusic.Enabled = false;
     }
     else
     {
         SoundCollection.ChangeMusicVolume((int)sldMusic.Value);
         sldMusic.Enabled = true;
     }
 }
 private void sldMusic_Scroll(object sender, EventArgs e)
 {
     SoundCollection.ChangeMusicVolume((int)sldMusic.Value);
 }