Delphi DLL

Remove a Single Attachment from an Email

Demonstrates the Chilkat Email.DropSingleAttachment method, which removes the attachment at the specified zero-based index. Valid indexes run from 0 through NumAttachments - 1. This example adds two attachments, removes the first, and prints the count before and after.

Background: Attachments are addressed by a zero-based index, so the first is 0, the second 1, and so on. DropSingleAttachment removes just one — use it to prune a specific file (say, an oversized or unwanted attachment) while keeping the rest. Note that after a removal the remaining attachments shift down, so if you are deleting several by index, iterate from the highest index downward to avoid skipping any.

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Delphi DLL

var
email: HCkEmail;

begin
//  Demonstrates the DropSingleAttachment method, which removes the attachment at the
//  specified zero-based index.

email := CkEmail_Create();
CkEmail_putSubject(email,'Drop a single attachment');

CkEmail_AddStringAttachment(email,'a.txt','first attachment');
CkEmail_AddStringAttachment(email,'b.txt','second attachment');
Memo1.Lines.Add('NumAttachments before = ' + IntToStr(CkEmail_getNumAttachments(email)));

//  Remove the attachment at index 0 (the first attachment).
CkEmail_DropSingleAttachment(email,0);

Memo1.Lines.Add('NumAttachments after = ' + IntToStr(CkEmail_getNumAttachments(email)));

CkEmail_Dispose(email);