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Determine the Number of Unseen Email MessagesDemonstrates how to determine how many unseen messages exist in an email account on an IMAP server. Downloads: MS Windows Visual C/C++ Libraries Linux/CentOS C/C++ Libraries MAC OS X C/C++ Libraries Solaris C/C++ Libraries C++ Builder Libraries // Needs #include <CkImap.h> // Needs #include <CkMessageSet.h> CkString strOut; CkImap imap; bool success; // Anything unlocks the component and begins a fully-functional 30-day trial. success = imap.UnlockComponent("Anything for 30-day trial"); if (success != true) { strOut.append(imap.lastErrorText()); strOut.append("\r\n"); SetDlgItemText(IDC_EDIT1,strOut.getUnicode()); return; } // Connect to an IMAP server. success = imap.Connect("mail.chilkatsoft.com"); if (success != true) { strOut.append(imap.lastErrorText()); strOut.append("\r\n"); SetDlgItemText(IDC_EDIT1,strOut.getUnicode()); return; } // Login success = imap.Login("***","***"); if (success != true) { strOut.append(imap.lastErrorText()); strOut.append("\r\n"); SetDlgItemText(IDC_EDIT1,strOut.getUnicode()); return; } // Select an IMAP mailbox success = imap.SelectMailbox("Inbox"); if (success != true) { strOut.append(imap.lastErrorText()); strOut.append("\r\n"); SetDlgItemText(IDC_EDIT1,strOut.getUnicode()); return; } // After selecting the mailbox. the total number of emails // is immediately available: long totalNum; totalNum = imap.get_NumMessages(); strOut.appendInt(totalNum); strOut.append("\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. CkMessageSet *messageSet = 0; // We can choose to fetch UIDs or sequence numbers. bool fetchUids; fetchUids = true; messageSet = imap.Search("UNSEEN",fetchUids); if (messageSet == 0 ) { strOut.append(imap.lastErrorText()); strOut.append("\r\n"); SetDlgItemText(IDC_EDIT1,strOut.getUnicode()); return; } long numUnseen; numUnseen = messageSet->get_Count(); strOut.appendInt(numUnseen); strOut.append("\r\n"); strOut.append("UIDs ----"); strOut.append("\r\n"); // Display the UIDs long i; long msgId; for (i = 0; i <= messageSet->get_Count() - 1; i++) { msgId = messageSet->GetId(i); strOut.appendInt(msgId); strOut.append("\r\n"); } // Disconnect from the IMAP server. imap.Disconnect(); delete messageSet; SetDlgItemText(IDC_EDIT1,strOut.getUnicode()); |
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