///<summary>
///设备信息获取
///</summary>
///<param name="deviceInfo">[out]设备信息</param>
///<returns>设备信息转化的字符串，请对应保存到文本文件中</returns>
public static int ASFGetActiveDeviceInfo(out string deviceInfo)
{
deviceInfo = string.Empty;
int retCode = -1;
IntPtr tempIntPtr = IntPtr.Zero;
//调用SDK接口
retCode = ASFFunctions.ASFGetActiveDeviceInfo(ref tempIntPtr);
if (retCode == 0)
{
deviceInfo = Marshal.PtrToStringAnsi(tempIntPtr);
}
return(retCode);
}