/// <summary>
/// 获取版本信息
/// </summary>
/// <param name="version">版本信息</param>
/// <returns>返回0表示正常；返回负数请根据ErrorCodeUtil类注释查看；其他值请在官网-帮助中心查询</returns>
public int ASFGetVersion(out SDKVersion version)
{
version = new SDKVersion();
int retCode = -1;
ASF_VERSION asfVersion = ASFFunctions.ASFGetVersion();
version.version = Marshal.PtrToStringAnsi(asfVersion.Version);
version.buildDate = Marshal.PtrToStringAnsi(asfVersion.BuildDate);
version.copyRight = Marshal.PtrToStringAnsi(asfVersion.CopyRight);
return(retCode);
}