(Objective-C) Transition from MailMan.GetHeaders to MailMan.FetchRange

Provides instructions for replacing deprecated GetHeaders method calls with FetchRange.

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

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#import <CkoMailMan.h>
#import <CkoEmailBundle.h>

CkoMailMan *mailman = [[CkoMailMan alloc] init];

// ...
// ...

int numBodyLines = 3;
int fromIndex = 0;
int toIndex = 9;

// ------------------------------------------------------------------------
// The GetHeaders method is deprecated:

CkoEmailBundle *bundleObj = [mailman GetHeaders: [NSNumber numberWithInt: numBodyLines] fromIndex: [NSNumber numberWithInt: fromIndex] toIndex: [NSNumber numberWithInt: toIndex]];
if (mailman.LastMethodSuccess == NO) {
    NSLog(@"%@",mailman.LastErrorText);
    return;
}

// ...
// ...

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

BOOL keepOnServer = YES;
BOOL headersOnly = YES;

CkoEmailBundle *bundleOut = [[CkoEmailBundle alloc] init];
BOOL success = [mailman FetchRange: keepOnServer headersOnly: headersOnly numBodyLines: [NSNumber numberWithInt: numBodyLines] startIndex: [NSNumber numberWithInt: fromIndex] endIndex: [NSNumber numberWithInt: toIndex] bundle: bundleOut];
if (success == NO) {
    NSLog(@"%@",mailman.LastErrorText);
    return;
}