Objective-C

Get a Related Item as Text

Demonstrates the Chilkat Email.GetRelatedString method, which returns the text of a related item (with CR line-endings), interpreting the item's bytes using the supplied charset. It is intended for text-based related items such as style sheets. The first argument is the zero-based related-item index and the second is the charset. This example reads an embedded CSS style sheet as text.

Background: Not every related item is a binary image — some are text, like a CSS style sheet embedded so the HTML renders consistently offline. For those, GetRelatedString decodes the bytes back to characters using the charset you specify (typically utf-8). For binary related items such as images, read the raw data via the BinData-based accessor instead. This variant normalizes line endings to bare CR; use GetRelatedStringCrLf when you need CRLF.

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Objective-C

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

//  Demonstrates the GetRelatedString method, which returns the text of a related item (with
//  CR line-endings), interpreting the bytes using the specified charset.  This is intended
//  for text-based related items such as style sheets.  The index is zero-based.

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

//  The HTML references a related style sheet by name (Content-Location).
[email SetHtmlBody: @"<html><head><link rel=\"stylesheet\" href=\"styles.css\"/></head><body>Styled.</body></html>"];

//  Add the related style sheet (index 0).
[email AddRelatedString2: @"styles.css" str: @"body { color: navy; }" charset: @"utf-8"];

//  Get the first related item (index 0) as text, interpreting the bytes as utf-8.
NSString *content = [email GetRelatedString: [NSNumber numberWithInt: 0] charset: @"utf-8"];
NSLog(@"%@%@",@"Related item 0 text: ",content);