Home/ Questions/Q 7169589
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-28T15:01:42+00:00

I’m using an IdImap4 + Idmessage to receive emails. But I couldn’t find out:

  • 0

I’m using an IdImap4 + Idmessage to receive emails.

But I couldn’t find out:

  1. how to display a received HTML formatted email body on a TWebBrowser?
  2. wether it is possible to show the simple text messages on a TWebBrowser, too? If yes, how?
Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    It is technically possible to display an email’s HTML, however TWebBrowser is not really well-suited for this purpose. You need to store the HTML in memory that is accessible via an IStream interface (such as by using the TMemoryStream and TStreamAdapter classes), then navigate the browser to the "about:blank" URL via the TWebBrowser::Navigate2() method and wait for the TWebBrowser::OnDocumentComplete event to fire, then query the document for its IPersistStreamInit interface and pass the IStream to the IPersistStreamInit::Load() method.

    There are subtle quirks with displaying in-memory HTML in general, let alone displaying HTML from an email. In particular, the email’s HTML may have dependancies on images and other resources that are located elsewhere in the email, which cannot be loaded in TWebBrowser without saving them to temp files and altering the HTML to refer to them. You are better off using a third-party HTML viewer, such as the HTML viewing components from http://www.pbear.com, that support manually providing the data for requested resources. Then you can pull the data from the TIdMessage as needed.

    To display other messages in the browser, you will likely have to manipulate the document’s DOM after the initial page is loaded (unless you alter the HTML inline before displaying it).

    • 0