Objective-C

Load an Email from MIME in a StringBuilder

Demonstrates the Chilkat Email.SetFromMimeSb method, which loads an email from the MIME text stored in a StringBuilder object. On success, it replaces the entire current email. This example serializes one email into a StringBuilder with GetMimeSb, then reconstructs it in a second object.

Background: This is the StringBuilder counterpart to SetFromMimeText. When the MIME already lives in a StringBuilder — perhaps assembled or edited there — passing it directly avoids converting to an intermediate string, which is more efficient for large messages.

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Objective-C

#import <CkoEmail.h>
#import <CkoStringBuilder.h>

BOOL success = NO;

//  Demonstrates the SetFromMimeSb method, which loads an email from MIME text stored in a
//  StringBuilder object.  On success, it replaces the entire current email.

//  Build a source email and get its MIME into a StringBuilder.
CkoEmail *source = [[CkoEmail alloc] init];
source.Subject = @"Source message";
source.From = @"alice@example.com";
source.Body = @"Hello from a StringBuilder.";
CkoStringBuilder *sbMime = [[CkoStringBuilder alloc] init];
[source GetMimeSb: sbMime];

//  Load a new email object from the StringBuilder MIME.
CkoEmail *email = [[CkoEmail alloc] init];

success = [email SetFromMimeSb: sbMime];
if (success == NO) {
    NSLog(@"%@",email.LastErrorText);
    return true;
}

NSLog(@"%@%@",@"Loaded subject: ",email.Subject);