Список проголосовавших за комментарий "К сожалению, не все так просто.<br/> Ну вот, это из официального дистрибутива их с++ примера:<br/> <br/> <p><strong>void EClient::reqContractDetails( int reqId, const Contract& contract)</strong><br/> <strong>{</strong><br/> <strong>// not connected?</strong><br/> <strong>if( !isConnected()) {</strong><br/> <strong>m_pEWrapper->error( NO_VALID_ID, NOT_CONNECTED.code(), NOT_CONNECTED.msg());</strong><br/> <strong>return;</strong><br/> <strong>}</strong></p><p><strong>// Not needed anymore validation</strong><br/> <strong>// This feature is only available for versions of TWS >=4</strong><br/> <strong>//if( m_serverVersion < 4) {</strong><br/> <strong>// m_pEWrapper->error( NO_VALID_ID, UPDATE_TWS.code(), UPDATE_TWS.msg());</strong><br/> <strong>// return;</strong><br/> <strong>//}</strong><br/> <strong>if (m_serverVersion < MIN_SERVER_VER_SEC_ID_TYPE) {</strong><br/> <strong>if( !contract.secIdType.empty() || !contract.secId.empty()) {</strong><br/> <strong>m_pEWrapper->error( reqId, UPDATE_TWS.code(), UPDATE_TWS.msg() +</strong><br/> <strong>" It does not support secIdType and secId parameters.");</strong><br/> <strong>return;</strong><br/> <strong>}</strong><br/> <strong>}</strong><br/> <strong>if (m_serverVersion < MIN_SERVER_VER_TRADING_CLASS) {</strong><br/> <strong>if( !contract.tradingClass.empty()) {</strong><br/> <strong>m_pEWrapper->error( reqId, UPDATE_TWS.code(), UPDATE_TWS.msg() +</strong><br/> <strong>" It does not support tradingClass parameter in reqContractDetails.");</strong><br/> <strong>return;</strong><br/> <strong>}</strong><br/> <strong>}</strong><br/> <strong>if (m_serverVersion < MIN_SERVER_VER_LINKING) {</strong><br/> <strong>if (!contract.primaryExchange.empty()) {</strong><br/> <strong>m_pEWrapper->error( reqId, UPDATE_TWS.code(), UPDATE_TWS.msg() +</strong><br/> <strong>" It does not support primaryExchange parameter in reqContractDetails.");</strong><br/> <strong>return;</strong><br/> <strong>}</strong><br/> <strong>}</strong></p><p><strong>std::stringstream msg;</strong><br/> <strong>prepareBuffer( msg);</strong></p><p><strong>const int VERSION = 8;</strong></p><p><strong>// send req mkt data msg</strong><br/> <strong>ENCODE_FIELD( REQ_CONTRACT_DATA);</strong><br/> <strong>ENCODE_FIELD( VERSION);</strong></p><p><strong>if( m_serverVersion >= MIN_SERVER_VER_CONTRACT_DATA_CHAIN)</strong><br/> <strong>{</strong><br/> <strong>ENCODE_FIELD( reqId);</strong><br/> <strong>}</strong></p><p><strong>// send contract fields</strong><br/> <strong>ENCODE_FIELD( contract.conId); // srv v37 and above</strong><br/> <strong>ENCODE_FIELD( contract.symbol);</strong><br/> <strong>ENCODE_FIELD( contract.secType);</strong><br/> <strong>ENCODE_FIELD( contract.lastTradeDateOrContractMonth);</strong><br/> <strong>ENCODE_FIELD( contract.strike);</strong><br/> <strong>ENCODE_FIELD( contract.right);</strong><br/> <strong>ENCODE_FIELD( contract.multiplier); // srv v15 and above</strong></p><p><strong>//Вот здесь чудеса начинаются...</strong><br/> <strong>//Коннестится к ibgateway например NT8..</strong><br/> <strong>// Первым делом клиет (нидзя) передаёт свою версию апи. Это 66.</strong><br/> <strong>// Сервер отвечает что он работае по версии 76, все оки-доки.</strong><br/> <strong>// Теперь внимательно!</strong><br/> <strong>if (m_serverVersion >= MIN_SERVER_VER_PRIMARYEXCH/* == 75 !!!*/)</strong><br/> <strong>{</strong><br/> <strong>ENCODE_FIELD(contract.exchange);</strong><br/> <strong>ENCODE_FIELD(contract.primaryExchange);</strong><br/> <strong>}</strong><br/> <strong>else if (m_serverVersion >= MIN_SERVER_VER_LINKING/* == 70 !!!*/)</strong><br/> <strong>{</strong><br/> <strong>if (!contract.primaryExchange.empty() && (contract.exchange == «BEST» || contract.exchange == «SMART»))</strong><br/> <strong>{</strong><br/> <strong>ENCODE_FIELD( contract.exchange + ":" + contract.primaryExchange);</strong><br/> <strong>}</strong><br/> <strong>else</strong><br/> <strong>{</strong><br/> <strong>ENCODE_FIELD(contract.exchange);</strong><br/> <strong>}</strong><br/> <strong>}</strong></p><p><strong>//Исходя из вышеизложенного, запрос сцукко, ДОЛЖЕН!!! содержать поле contract.primaryExchange,</strong><br/> <strong>//однако по факту зтого поля в текте нет!!!</strong><br/> <strong>//Тем не менее, клиент и сервер прекрасно друг друга понимают, работаем дальше,</strong><br/> <strong>//хотя должна произойти необратимая ошибка и acsess voilation readind location при чтении следующего сообщения..</strong></p><p><strong>ENCODE_FIELD( contract.currency);</strong><br/> <strong>ENCODE_FIELD( contract.localSymbol);</strong></p><p><strong>if( m_serverVersion >= MIN_SERVER_VER_TRADING_CLASS)</strong><br/> <strong>{</strong><br/> <strong>ENCODE_FIELD( contract.tradingClass);</strong><br/> <strong>}</strong></p><p><strong>ENCODE_FIELD( contract.includeExpired); // srv v31 and above</strong></p><p><strong>if( m_serverVersion >= MIN_SERVER_VER_SEC_ID_TYPE)</strong><br/> <strong>{</strong><br/> <strong>ENCODE_FIELD( contract.secIdType);</strong><br/> <strong>ENCODE_FIELD( contract.secId);</strong><br/> <strong>}</strong></p><p><strong>closeAndSend( msg.str());</strong><br/> <strong>}</strong></p>"