Access HTML Embedded Image Data in Memory

Demonstrates how to access the byte data for HTML email embedded images (and other files) .

Download Chilkat Java Library

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[])
  {
    //  Create a MailMan or Imap object first for the purpose
    //  of unlocking the component. (Only one is necessary)
    CkMailMan mailman = new CkMailMan();
    mailman.UnlockComponent("anything for 30-day trial");
    CkImap imap = new CkImap();
    imap.UnlockComponent("anything for 30-day trial");

    CkEmail email = new CkEmail();

    //  Load an email object containing HTML with embedded images.
    //  This .eml can be downloaded from:
    //  http://www.example-code.com/testData/HtmlEmail.eml
    boolean success;
    success = email.LoadEml("HtmlEmail.eml");
    if (success != true) {
        System.out.println(email.lastErrorText());
        return;
    }

    byte[] imageData;
    CkByteData imageBytes = new CkByteData();

    //  Iterate over the related items.
    //  Print the file name and save each to a file.
    int i;
    for (i = 0; i <= email.get_NumRelatedItems() - 1; i++) {

        System.out.println(email.getRelatedFilename(i));

        success = email.GetRelatedData(i,imageBytes);
        if (success != true) {
            System.out.println(email.lastErrorText());
            return;
        }

        imageData = imageBytes.toByteArray();
        //  The image data is now available in a byte array...

        imageBytes.clear();

    }

  }
}