Objective-C
Create multipart/alternative MIME

Demonstrates how to create a multipart/alternative MIME structure using the NewMultipartAlternative method.
Chilkat Objective-C Downloads

Objective-C
#import <CkoMime.h>

BOOL success = NO;

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

//  Start with an empty MIME object...
CkoMime *mime = [[CkoMime alloc] init];

//  Initialize it as multipart/alternative.
[mime NewMultipartAlternative];

//  Create a text/plain part.
CkoMime *ptMime = [[CkoMime alloc] init];
[ptMime SetBodyFromPlainText: @"This is the plain text body."];
NSLog(@"%@",[ptMime GetMime]);
NSLog(@"%@",@"****");

//  The text/plain part looks like this:

//  	Content-Type: text/plain
//  	Content-Transfer-Encoding: 7bit
//  
//  	This is the plain text body.

//  Create a text/HTML part.
CkoMime *htmlMime = [[CkoMime alloc] init];
[htmlMime SetBodyFromHtml: @"<html><body><p>This is the <b>HTML body</b></p></body></html>"];
NSLog(@"%@",[htmlMime GetMime]);
NSLog(@"%@",@"****");

//  The text/html part looks like this:

//  	Content-Type: text/html
//  	Content-Transfer-Encoding: 7bit
//  
//  	<html><body><p>This is the <b>HTML body</b></p></body></html>

//  Add both parts as children of the multipart/alternative
[mime AppendPart: ptMime];
[mime AppendPart: htmlMime];
NSLog(@"%@",[mime GetMime]);

//  This the result.  The boundary string was automatically generaetd.

//  	Content-Type: multipart/alternative; boundary="------------080803090906030708030908"
//  
//  	--------------080803090906030708030908
//  	Content-Type: text/plain
//  	Content-Transfer-Encoding: 7bit
//  
//  	This is the plain text body.
//  	--------------080803090906030708030908
//  	Content-Type: text/html
//  	Content-Transfer-Encoding: 7bit
//  
//  	<html><body><p>This is the <b>HTML body</b></p></body></html>
//  	--------------080803090906030708030908--