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(C++) Determine the Number of Unseen Email MessagesDemonstrates how to determine how many unseen messages exist in an email account on an IMAP server. Note: This example requires Chilkat v11.0.0 or greater.
#include <CkImap.h> #include <CkMessageSet.h> void ChilkatSample(void) { bool success = false; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkImap imap; // Connect to an IMAP server. // Use TLS imap.put_Ssl(true); imap.put_Port(993); success = imap.Connect("imap.example.com"); if (success == false) { std::cout << imap.lastErrorText() << "\r\n"; return; } // Login success = imap.Login("***","***"); if (success == false) { std::cout << imap.lastErrorText() << "\r\n"; return; } // Select an IMAP mailbox success = imap.SelectMailbox("Inbox"); if (success == false) { std::cout << imap.lastErrorText() << "\r\n"; return; } // After selecting the mailbox. the total number of emails // is immediately available: int totalNum = imap.get_NumMessages(); std::cout << "Num messages = " << totalNum << "\r\n"; // To determine the number of unseen messages, a call // to Search is required, which returns the set of UIDs // of all unseen messages. // We can choose to fetch UIDs or sequence numbers. bool fetchUids = true; CkMessageSet messageSet; success = imap.QueryMbx("UNSEEN",fetchUids,messageSet); if (success == false) { std::cout << imap.lastErrorText() << "\r\n"; return; } unsigned long numUnseen = messageSet.get_Count(); std::cout << numUnseen << "\r\n"; std::cout << "UIDs ----" << "\r\n"; // Display the UIDs int i = 0; while (i < messageSet.get_Count()) { std::cout << messageSet.GetId(i) << "\r\n"; i = i + 1; } // Disconnect from the IMAP server. success = imap.Disconnect(); } |
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