Java

Set the Content-Disposition of an Attachment

Demonstrates the Chilkat Email.SetAttachmentDisposition method, which sets the Content-Disposition value for the attachment at a given zero-based index. The default disposition is attachment. This example changes an attachment's disposition to inline.

Background: The Content-Disposition header hints how a client should present a part: attachment means "offer it as a download," while inline means "display it within the message" (as an email client does with an embedded image). Setting it lets you control that behavior — though clients ultimately decide how to honor the hint.

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Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    //  Demonstrates the SetAttachmentDisposition method, which sets the Content-Disposition
    //  value for the attachment at the given zero-based index.  The default disposition is
    //  "attachment".

    CkEmail email = new CkEmail();
    email.put_Subject("Set attachment disposition");

    email.AddStringAttachment("image.txt","(pretend inline content)");

    //  Set the disposition of the first attachment (index 0) to "inline".
    success = email.SetAttachmentDisposition(0,"inline");
    if (success == false) {
        System.out.println(email.lastErrorText());
        return;
        }

    //  The attachment's Content-Disposition is now "inline".
    System.out.println(email.getMime());
  }
}