private extern static void zplay_GetStreamInfoW(uint objptr, ref TStreamInfo_Internal pInfo);
public void GetStreamInfo(ref TStreamInfo info)
{
TStreamInfo_Internal tmp = new TStreamInfo_Internal();
zplay_GetStreamInfoW(objptr, ref tmp);
info.Bitrate = tmp.Bitrate;
info.ChannelNumber = tmp.ChannelNumber;
info.SamplingRate = tmp.SamplingRate;
info.VBR = tmp.VBR;
info.Length = tmp.Length;
info.Description = Marshal.PtrToStringUni(tmp.Description);
}