Objective-C

Create a multipart/mixed MIME Entity

Demonstrates the Chilkat Mime.NewMultipartMixed method, which initializes the object as an empty multipart/mixed entity, clearing any existing content. It takes no arguments; child parts are then appended.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: multipart/mixed is the container for independent parts shown one after another — the classic "message body plus attachments" layout. Each child is its own distinct content, unlike multipart/alternative (competing renderings of the same thing) or multipart/related (a part and its embedded resources). Start here, then AppendPart a body and AppendPartFromFile the attachments.

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Objective-C

#import <CkoMime.h>

BOOL success = NO;

//  Demonstrates the Mime.NewMultipartMixed method, which initializes the object as an empty
//  multipart/mixed entity, clearing any existing headers, body, and child parts.  It takes no
//  arguments.

CkoMime *mime = [[CkoMime alloc] init];

success = [mime NewMultipartMixed];
if (success == NO) {
    NSLog(@"%@",mime.LastErrorText);
    return;
}

//  Append child parts.  multipart/mixed is the container for a message body plus attachments.
CkoMime *bodyPart = [[CkoMime alloc] init];
success = [bodyPart SetBodyFromPlainText: @"See the attached report."];
if (success == NO) {
    NSLog(@"%@",bodyPart.LastErrorText);
    return;
}

success = [mime AppendPart: bodyPart];
if (success == NO) {
    NSLog(@"%@",mime.LastErrorText);
    return;
}

success = [mime AppendPartFromFile: @"qa_data/report.pdf"];
if (success == NO) {
    NSLog(@"%@",mime.LastErrorText);
    return;
}

NSLog(@"%@%d",@"Number of parts: ",[mime.NumParts intValue]);