mfc中用Windows Media Player做音乐播放器，出现错误

error C2039: 'GetCurSel' : is not a member of 'CString'
see declaration of 'CString'
error C2039: 'GetCount' : is not a member of 'CString'
see declaration of 'CString'

参考：
http://www.cnblogs.com/caidaxia/archive/2011/10/20/2219032.html