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Resolved Display HTML in default Browser

  1. How-to
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  1. Gregory Rusak
    Gregory Rusak
  2. PowerBuilder
  3. Wednesday, 11 November 2020 01:57 AM UTC

Hello,

How does one go about opening the user's default web browser and displaying in it HTML source code as a string without having to write the HTML to a temporary File? In other words an in-memory approach.

And what about the new internal Chromium WebBrowser Control? I don't immediately see a method for "loading" an HTML document. Is this possible, or is a file always needed?

PowerBuilder 2019R2

Thanks in advance.

Greg

Client Server application
Text vertically centered on datawindow fields
Responses (2)
Peter Piechutzki
Peter Piechutzki Accepted Answer Pending Moderation
  1. Thursday, 12 November 2020 06:44 AM UTC
  2. PowerBuilder
  3. # 1

Hi Greg,

Just a thought, imho a memory approch wouldn't work, since the browsers I know of all rely on a file or html strem. A workaround might be coming up in PB2019 R3 using the new chromium Web browser control. I don't quite remember the functions, but I assume it may be possible to wrap the string into javascipt code which you then send to the control.

regards

Peter

 

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Miguel Leeuwe
Miguel Leeuwe Accepted Answer Pending Moderation
  1. Wednesday, 11 November 2020 10:15 AM UTC
  2. PowerBuilder
  3. # 2

use the "shellexecute" windows API.

There a OpenWordDoc.zip file on this page which contains a user object "n_findwindow" to visualize different types of documents. It's used as an example to show a word document, but if you call the function:

of_viewdocument() and pass in the path to an html file on disk, it should be visualized in your windows default browser.

https://community.appeon.com/index.php/qna/q-a/is-the-ms-word-document-open?limitstart=0#reply-23884

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Gregory Rusak
  1. Gregory Rusak
  2. Wednesday, 11 November 2020 17:23 PM UTC
Thanks Miguel,

Your approach still requires a temporary file to be created on disk, which then will need to be deleted. In order to avoid all that, we were looking for a way to directly open the default browser and sending it HTML to render in the display.
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Miguel Leeuwe
  1. Miguel Leeuwe
  2. Wednesday, 11 November 2020 17:26 PM UTC
Sorry I misread your initial post where you say "as a string", I only saw "This would be similar to the user saving the HTML PowerScript string as a file".

So ... yeah, I really wouldn't know if that's going to be possible.

Sorry
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Gregory Rusak
  1. Gregory Rusak
  2. Thursday, 12 November 2020 02:23 AM UTC
Hey Miguel,

After re-reading my initial post, I do see how it can be easily misread. Thanks for that.

Yes, I'm looking for an in-memory approach.
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