Delphi DLL

Get an Email's MIME into a StringBuilder

Demonstrates the Chilkat Email.GetMimeSb method, which returns the email as MIME text (header, body or bodies, related items, and all attachments) by appending it to a StringBuilder object. This example builds a message and appends its MIME to a StringBuilder.

Background: This is a StringBuilder-based alternative to GetMime, which returns a plain string. Writing into a StringBuilder is more efficient when the MIME is large or when you intend to further manipulate it — searching, replacing, or accumulating additional text — without creating many intermediate string copies.

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var
success: Boolean;
email: HCkEmail;
sbMime: HCkStringBuilder;

begin
success := False;

//  Demonstrates the GetMimeSb method, which returns the email as MIME text (headers, bodies,
//  related items, and attachments), appending it to a StringBuilder object.

email := CkEmail_Create();
CkEmail_putSubject(email,'GetMimeSb example');
CkEmail_putFrom(email,'alice@example.com');
CkEmail_AddTo(email,'Bob','bob@example.com');
CkEmail_putBody(email,'Hello!');

//  Append the complete MIME to a StringBuilder.
sbMime := CkStringBuilder_Create();
success := CkEmail_GetMimeSb(email,sbMime);
if (success = False) then
  begin
    Memo1.Lines.Add(CkEmail__lastErrorText(email));
    Exit;
  end;

Memo1.Lines.Add(CkStringBuilder__getAsString(sbMime));

CkEmail_Dispose(email);
CkStringBuilder_Dispose(sbMime);