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Resolved Why so many PBCEFClient.exe's??

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  1. Christopher Craft
    Christopher Craft
  2. PowerBuilder
  3. Friday, 28 April 2023 20:29 PM UTC

I have started to implement the new Web Browser Control in multiple places within my UI.  My 'Home' page has one. I also have a Documents tab that uses it to display PDF files saved to the transaction. This tab exists on every program (sheet) that opens up.  Everytime a new program opens I see 1 to x pbcefclient.exe's in Task Manager.  For instance, when I first run my app the home page is the only thing open yet there are 5 pbcefclients running even though I only have 1 browser control on the home page.  What is causing this?  Is there a way to prevent all of these?

Chris Craft

Experiencing Probably library file I/O Error build...
Datawindow Some fonts cannot display text/column/c...
Accepted Answer
Arnd Schmidt
Arnd Schmidt Accepted Answer Pending Moderation
  1. Sunday, 30 April 2023 01:39 AM UTC
  2. PowerBuilder
  3. # Permalink

Hi Christopher,

this is because of the multi processing architecture of the Chromium Embedded Framework.

CEF is more than a single threaded PowerBuilder UI loop ;-)

https://bitbucket.org/chromiumembedded/cef/wiki/Architecture.md

For an upcoming PowerBuilder Release and the change to the Microsoft WebView2 Control you also will find multiple WebView2 processes.

https://www.askvg.com/what-is-microsoft-edge-webview2-msedgewebview2-exe-in-windows-10-and-11/

hth

Arnd

 

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Christopher Craft
  1. Christopher Craft
  2. Tuesday, 14 November 2023 22:27 PM UTC
Forgot to accept this as the answer. Thanks Arnd
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Responses (3)
Christopher Craft
Christopher Craft Accepted Answer Pending Moderation
  1. Wednesday, 3 May 2023 17:55 PM UTC
  2. PowerBuilder
  3. # 1

Thanks for the replies!  So, I understand that for each Web Browser control I will have a pbcefclient.exe running but what I am trying to understand is when does the control decide to create 2 or 3 ... pbcefclient.exe's? This control only shows a local html file.  The answer might just be 'because that is how it works' but I am probably going to get questions from our customers as to why so I thought I would ask.

Thanks again,

Chris Craft

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Chris Pollach @Appeon
  1. Chris Pollach @Appeon
  2. Wednesday, 3 May 2023 18:13 PM UTC
Hi Chris;

FYI: This module is gone in PB 2022 R2 as Appeon is swapping out the Chromium engine that drives the WB Control for the WebView2 engine (native MS-Windows) for the built-in Web Browser Control. ;-)

Regards .. Chris
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Chris Pollach @Appeon
Chris Pollach @Appeon Accepted Answer Pending Moderation
  1. Friday, 28 April 2023 21:02 PM UTC
  2. PowerBuilder
  3. # 2

Hi Chris;

  Are you referring to PB 2019 R3 with PowerServer 2020?

FYI: https://community.appeon.com/index.php/qna/q-a/pbcefclient-exe

Regards ...Chris

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