| CSessionProfileResponse::Account | Account |
| CActivityReason | Activity reasons |
| CAdminMessageListener | Administrative messages listener |
| CSessionProfileResponse::AssignedClass | Assigned class key |
| CAuctionState | Auction state |
| CAuctionTypeBits | Auction type bits |
| CAuctionTypes | Auction types |
| CCancelPreference | Cancel Preference |
| CProductDownloadRequestForClass::ClassKey | Class key |
| CSessionProfileResponse::ClassProfile | Class profile |
| CCMi2ErrorCode | CMi2 error codes |
| CConnectionRetries | Connection retries settings |
| CContingencyTypes | Contingency types |
| CQuoteFillReport::Contra | Contra party |
| COrderFillReport::Contra | Contra party |
| CCoverageCodes | Coverage codes |
| CDecimal | Decimal type for better precision |
| CSessionProfileResponse::DefaultProfile | Default profile |
| CSessionProfileResponse::DefaultSessionProfile | Default session profile |
| CSessionProfileResponse::DPM | DPM |
| CErrorCode | Known (selected) error codes |
| CErrorListener | Defines an interface through which the Handler notifies subscribers about errors occurred while processing messages |
| ►Cexception | STL class |
| ►CException | Basic exception class for this namespace |
| ►CArgumentException | Argument value error |
| CArgumentRangeException | Argument value range error |
| CNullArgumentException | Null argument value error |
| ►COperationException | Operation exception |
| CNotImplementedException | Function is not implemented |
| CSessionProfileResponse::ExecutingGiveUpFirm | Executing or Give Up firm |
| CHandler | CBOE CMi2 Trading Handler |
| CHandlerSettings | Handler settings |
| CHandlerState | Defines the state that the handler is in |
| CHandlerStateListener | Status listener |
| CHandlingIndicator | Handling indicator |
| CHighResolutionTime | Miscellaneous time traits |
| CHighResolutionTimeFields | Fields of HighResolutionTime |
| CStrategyDefinitionRequest::Leg | Leg |
| CStrategyOrder::Leg | Leg |
| CStrategyOrderCancelReplace::Leg | Leg |
| COrderResponse::Leg | Leg |
| CPairedStrategyOrder::PairedStrategyOrderItem::Leg | Leg |
| CProductDownloadForStrategyClassResponse::Product::Leg | Leg |
| CLoginMode | Login mode |
| CLogLevel | Log level |
| CLogoutReasonCode | Logout reason code |
| CLogSettings | Logging options |
| CMatchType | Match type |
| ►CMessage | Base class for all messages |
| CAcceptFloorTrade | Accept Floor Trade |
| CAcceptFloorTradeResponse | Accept Floor Trade Response |
| CAuctionNotification | Auction Notification |
| CAuctionSubscription | Auction Subscription |
| CBusinessReject | Business reject |
| CClearQRMRequest | Clear QRM Request |
| CDeleteFloorTrade | Delete Floor Trade |
| CGetQRMProfileRequest | Get QRM Profiles Request |
| CGetQRMProfileResponse | Get QRM Profiles Response |
| CGetQRMStatusRequest | Get QRM Status Request |
| CGMDAcknowledgement | GMD Acknowledgement |
| CHeartbeat | Heartbeat |
| CLogon | Logon |
| CLogonResponse | Logon Response |
| CLogout | Logout |
| CMassQuote | Mass Quote |
| CMassQuoteWithClearingInfo | Quote / Mass Quote with Clearing Information |
| COptionsRiskControlKillUserRequest | |
| COptionsRiskControlKillUsersResponse | |
| COrderBustReinstateReport | Order Bust Reinstate Report |
| COrderBustReport | Order Bust Report |
| COrderFillReport | Order Fill Report |
| COrderFormat1 | Order Format 1: Order Entry |
| COrderFormat1CancelReplace | Order Format 1: Cancel / Replace |
| COrderFormat1CancelRequest | Order Format 1: Order Cancel |
| COrderFormat2 | Order Format 2: Order Entry |
| COrderFormat2Cancel | Order Format 2: Order Cancel |
| COrderFormat2CancelReplace | Order Format 2: Order Cancel / Replace |
| COrderFormat2Response | Order Format 2: Order Response |
| COrderResponse | Order Response |
| CPairedOrder | Paired Order |
| CPairedStrategyOrder | Paired Strategy Order |
| CProductDownloadForEquityClassResponse | Product Download Response for Class - Equity |
| CProductDownloadForFutureClassResponse | Product Download Response for Class - Futures |
| CProductDownloadForOptionClassResponse | Product Download Response for Class - Options |
| CProductDownloadForStrategyClassResponse | Product Download Response for Class - Strategy |
| CProductDownloadRequestForClass | Product Download Request for Class |
| CProductDownloadRequestForTradingSession | Product Download Request for Trading Session |
| CProductDownloadRequestForTradingSessionWithUnderlying | Product Download Request for Trading Session with Underlying |
| CProductDownloadResponseForTradingSession | Product Download Response for Trading Session |
| CProductDownloadResponseForTradingSessionWithUnderlying | Product Download Response for Trading Session with Underlying |
| CProductStateUpdateResponse | Product State Update Message |
| CQRMControlUpdateInitialization | QRM Control Update Initialization |
| CQRMEnablementAndSettings | QRM Enablement and Settings |
| CQRMQueryResponse | QRM Query Response |
| CQRMStatusResponse | QRM Status Response |
| CQuoteAcknowledgement | Quote Acknowledgement |
| CQuoteBustReport | Quote Bust Report |
| CQuoteCancelRequest | Quote Cancel Request |
| CQuoteCancelResponse | Quote Cancel Response |
| CQuoteFillReport | Quote Fill Report |
| CRateInfo | Rate Information |
| CRemoveQRMProfileByClassByTypeRequest | Remove QRM Profiles By Class and By Type Request |
| CRequestAcknowledgementMessage | Request Acknowledgement |
| CRequestForQuote | Request for Quote and Response for Quote Request |
| CSequenceReset | Sequence Reset Notification |
| CSessionProfileResponse | Session Profile Response |
| CSessionReject | Session Level Reject |
| CSetQRMProfileRequest | Set QRM Profiles Request |
| CStrategyDefinitionRequest | Strategy Definition Request |
| CStrategyOrder | Strategy Order |
| CStrategyOrderCancelReplace | Strategy Order Cancel Replace |
| CTextMessage | Text Message |
| CTradingSessionBusinessDayRequest | Trading Session Business Day Request |
| CTradingSessionBusinessDayResponse | Trading Session Business Day Response |
| CTradingSessionStatusRequest | Trading Session Status Request |
| CTradingSessionStatusResponse | Trading Session Status Response |
| CMessageDirection | Message direction |
| CMessageInfo | Message info |
| CMessageListener | Message listener |
| CMessageType | Message type |
| CNBBOProtection | NBBO protection |
| CStrategyOrder::OptionalFields | Optional fields indicator |
| CStrategyOrderCancelReplace::OptionalFields | Optional fields indicator |
| COrderFormat1::OptionalFields | Optional fields indicator |
| COrderFormat1CancelReplace::OptionalFields | Optional fields indicator |
| CPairedOrder::PairedOrderItem::OptionalFields | Optional fields indicator |
| CPairedStrategyOrder::PairedStrategyOrderItem::OptionalFields | Optional fields indicator |
| COrderFormat2Response::OrderResponse | Order response |
| COriginTypeCodes | Origin type codes |
| CPairedOrder::PairedOrderItem | Paired order |
| CPairedOrderTypes | Paired order types |
| CPairedStrategyOrder::PairedStrategyOrderItem | Paired strategy order |
| CPositionEffect | Position effect |
| CPriceTypeCodes | Price type codes |
| CProductStateUpdateResponse::Product | Product |
| CProductDownloadForFutureClassResponse::Product | Product |
| CProductDownloadForOptionClassResponse::Product | Product |
| CProductDownloadForStrategyClassResponse::Product | Product |
| CProductDownloadResponseForTradingSessionWithUnderlying::ProductForTradingSession | Product |
| CProductDownloadResponseForTradingSession::ProductForTradingSession | Class |
| CProductStateCodes | Product state codes |
| CProductType | Product type |
| CPutOrCall | Put or call |
| CQRMEnablementAndSettings::QRM | QRM |
| CQRMQueryResponse::QRM | QRM |
| CQRMStatusResponse::QRM | QRM |
| CSetQRMProfileRequest::QRM | QRM profile |
| CRemoveQRMProfileByClassByTypeRequest::QRM | QRM profile type |
| CGetQRMProfileResponse::QRM | QRM |
| CQRMProfileType | QRM profile type |
| CQRMQueryType | QRM query type |
| CQuoteCancelRequest::Quote | Quote cancel |
| CQuoteCancelResponse::Quote | Quote cancel |
| CMassQuote::Quote | Quote |
| CMassQuoteWithClearingInfo::Quote | Quote |
| CQuoteAcknowledgement::QuoteStatus | Quote |
| CRateTypeCodes | Rate type codes |
| CReportType | Report type |
| CRestrictionType | Restriction type |
| COptionsRiskControlKillUsersResponse::Result | |
| CRFQType | RFQ type |
| CSerializedMessage | |
| CSessionListener | Session listener |
| CSessionSettings | Session settings |
| CSessionState | Session state |
| CSideCodesOrder | Side codes order |
| CSideCodesQuoteReply | Side codes quote reply |
| CSideCodesStrategy | Side codes strategy |
| CStatusMessageReasons | Status message reasons |
| CStrategyTypes | Strategy types |
| CSubscriptionType | Subscription type |
| CTimeInForce | Time in force |
| CTradingSessionCodes | Trading session codes |
| COptionsRiskControlKillUserRequest::User | User |
| CWarningListener | Defines an interface through which the Handler notifies subscribers about warnings occurred while processing messages |
