Delphi DLL

Get an Attachment as a Text String

Demonstrates the Chilkat Email.GetAttachmentString method, which returns the Nth attachment's data as text. The first argument is the zero-based attachment index and the second is the charset used to interpret the attachment bytes. This example reads a text attachment as utf-8.

Background: Attachments are stored as bytes, so turning one back into a string requires knowing its charset — the rule for mapping bytes to characters. Supplying the correct charset (often utf-8) yields readable text; the wrong one produces garbled characters. This method is meant for text attachments such as .txt, .csv, or .xml; binary attachments should be handled as raw data instead.

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Delphi DLL

var
email: HCkEmail;
content: PWideChar;

begin
//  Demonstrates the GetAttachmentString method, which returns the Nth attachment's data as
//  text.  The first argument is the zero-based attachment index and the second is the charset used to interpret
//  the attachment bytes.

email := CkEmail_Create();
CkEmail_putSubject(email,'Attachment as text');

CkEmail_AddStringAttachment(email,'notes.txt','These are the notes stored in the attachment.');

//  Get the first attachment (index 0) as text, interpreting the bytes as utf-8.
content := CkEmail__getAttachmentString(email,0,'utf-8');
Memo1.Lines.Add('Attachment 0 text: ' + content);

CkEmail_Dispose(email);