(Objective-C) Transition from Imap.CheckForNewEmail to Imap.QueryMbx

Provides instructions for replacing deprecated CheckForNewEmail method calls with QueryMbx.

Note: This example requires Chilkat v11.0.0 or greater.

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

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

// ...
// ...

// ------------------------------------------------------------------------
// The CheckForNewEmail method is deprecated:

CkoMessageSet *msgSetObj = [imap CheckForNewEmail];
if (imap.LastMethodSuccess == NO) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}

// ...
// ...

// ------------------------------------------------------------------------
// Do the equivalent using QueryMbx.
// Your application creates a new, empty MessageSet object which is passed 
// in the last argument and filled upon success.

NSString *criteria = @"new-email";
BOOL bUid = YES;

CkoMessageSet *msgSet = [[CkoMessageSet alloc] init];
BOOL success = [imap QueryMbx: criteria bUid: bUid msgSet: msgSet];
if (success == NO) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}