请问怎样把以下的c++改为c#?先谢谢了!

请问怎样把以下的c++改为c#?先谢谢了!
struct{
  DWORD   dwWorkType;
  char    sDVRIP[16];
  WORD    wDVRPort;
  BYTE    byChannel;
  BYTE    byLinkMode;
  DWORD   dwLinkType;
  union{
           struct{
           BYTE           sUserName[NAME_LEN];
           BYTE           sPassword[PASSWD_LEN];
           char           cReserve[52];
           }userInfo;
           struct{
           BYTE           fileName[100];
           }fileInfo;
           struct{
           DWORD          dwChannel;
           BYTE           sUserName[NAME_LEN];
           BYTE           sPassword[PASSWD_LEN];
           NET_DVR_TIME   struStartTime;
           NET_DVR_TIME   struStopTime;
           }timeInfo;
  }objectInfo;
}NET_DVR_DECCHANSTATUS,*LPNET_DVR_DECCHANSTATUS;