(Objective-C) List Email UIDs

List the UIDs of each email in a mailbox.

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#import <CkoImap.h>
#import <CkoMessageSet.h>

CkoImap *imap = [[CkoImap alloc] init];

// This example assumes Chilkat Imap to have been previously unlocked.
// See Unlock Imap for sample code.

// Connect to an IMAP server.
// Use TLS
imap.Ssl = YES;
imap.Port = [NSNumber numberWithInt:993];
BOOL success = [imap Connect: @"MY-IMAP-DOMAIN"];
if (success != YES) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}

// Login
success = [imap Login: @"MY-IMAP-LOGIN" password: @"MY-IMAP-PASSWORD"];
if (success != YES) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}

// Select an IMAP mailbox
success = [imap SelectMailbox: @"Inbox"];
if (success != YES) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}

CkoMessageSet *messageSet = 0;
// We can choose to fetch UIDs or sequence numbers.
BOOL fetchUids = YES;

// Get the message IDs of all the emails in the mailbox
messageSet = [imap Search: @"ALL" bUid: fetchUids];
if (imap.LastMethodSuccess != YES) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}

int i = 0;
int n = [messageSet.Count intValue];
while (i < n) {
    NSLog(@"%d",[[messageSet GetId: [NSNumber numberWithInt: i]] intValue]);
    i = i + 1;
}

// Disconnect from the IMAP server.
success = [imap Disconnect];