Delphi DLL

Render an Email to MIME in a StringBuilder

Demonstrates the Chilkat MailMan.RenderToMimeSb method, which renders an Email object as MIME text and appends the result to a StringBuilder, without sending the email. This example renders a message into a StringBuilder and prints it.

Background: This is the StringBuilder version of RenderToMime. Appending into a StringBuilder is more efficient when the MIME is large or when you plan to further inspect or manipulate it — searching, replacing, or accumulating additional text — without creating extra intermediate string copies.

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

begin
success := False;

//  Demonstrates the MailMan.RenderToMimeSb method, which renders an Email object as MIME text
//  and appends the result to a StringBuilder (without sending the email).

mailman := CkMailMan_Create();

//  Build the email to render.
email := CkEmail_Create();
CkEmail_putSubject(email,'Rendered email');
CkEmail_putFrom(email,'alice@example.com');
CkEmail_AddTo(email,'Bob','bob@example.com');
CkEmail_putBody(email,'This message is rendered to MIME in a StringBuilder.');

//  Render the MIME into a StringBuilder.
sbMime := CkStringBuilder_Create();

success := CkMailMan_RenderToMimeSb(mailman,email,sbMime);
if (success = False) then
  begin
    Memo1.Lines.Add(CkMailMan__lastErrorText(mailman));
    Exit;
  end;

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

CkMailMan_Dispose(mailman);
CkEmail_Dispose(email);
CkStringBuilder_Dispose(sbMime);