Objective-C

Get the Nth Text Part of a Given Content-Type

Demonstrates the Chilkat Email.GetNthTextPartOfType method, which returns the text content of the Nth non-multipart MIME part matching a Content-Type pattern. The arguments are a zero-based index among the matching parts, the content-type pattern, an inlineOnly flag, and an excludeAttachments flag. This example retrieves the first text/html part.

Background: A MIME message is a tree of parts, and sometimes you want a specific one by its type rather than by walking alternatives or bodies. The content-type pattern can be exact (text/html) or a wildcard (text/*), and the two boolean flags narrow the search — inlineOnly restricts to inline (displayed) parts, and excludeAttachments skips parts marked as attachments — so you can target exactly the text you care about.

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Objective-C

#import <CkoEmail.h>
#import <NSString.h>

//  Demonstrates the GetNthTextPartOfType method, which returns the text content of the Nth
//  non-multipart MIME part matching a Content-Type pattern.  The first argument is the zero-based
//  index among matching parts, the second is the Content-Type pattern, the third is inlineOnly, and the fourth is
//  excludeAttachments.

CkoEmail *email = [[CkoEmail alloc] init];
email.Subject = @"GetNthTextPartOfType example";

[email SetTextBody: @"This is the plain-text version." contentType: @"text/plain"];
[email AddHtmlAlternativeBody: @"<html><body>This is the HTML version.</body></html>"];

//  Get the first (index 0) part whose content type matches text/html.
NSString *htmlPart = [email GetNthTextPartOfType: [NSNumber numberWithInt: 0] contentType: @"text/html" inlineOnly: NO excludeAttachments: NO];
NSLog(@"%@",@"First text/html part:");
NSLog(@"%@",htmlPart);