C#调用c++ DLL传递结构体

typedef struct
{
char szServerName[KCBP_SERVERNAME_MAX + 1];
int nProtocal;
char szAddress[KCBP_DESCRIPTION_MAX + 1];
int nPort;
char szSendQName[KCBP_DESCRIPTION_MAX + 1];
char szReceiveQName[KCBP_DESCRIPTION_MAX + 1];
char szReserved[KCBP_DESCRIPTION_MAX + 1];
}
tagKCBPConnectOption;int SetConnectOption(tagKCBPConnectOption stKCBPConnection);不知如何调用，请大家指教。