TWebBrowser HDPI issue

[Attila Kovacs 629]

I was playing with TWebBrowser and it turns out that it just renders crap in HDPI mode.

A simple winforms app with a webbrowser renders everything correctly.

 

Both exe's are added to FEATURE_BROWSER_EMULATION with 11000 and checked the compatibility mode with https://detectmybrowser.com/

 

Tested in 10.1/10.2/10.3

 

I could not find any report about it, maybe I'm doing something wrong. Has anyone else experienced this?

 

[Der schöne Günther 316]

"It renders crap" is not a very accurate description of the problem you're having. Care to upload a screenshot? And maybe your application manifest?

[Attila Kovacs 629]

Wow @Der schöne Günther, bingo. I've compared the manifests between the winforms and the delphi app and the winforms app has no dpiAware:True in it.

So I unchecked it in Delphi and voila, they render the same. Thanks for the tip, but....

Now I have an other question... What should I do now? Looks like I would need it for the VCL app but not for the TWebBrowser!?

 

[Attila Kovacs 629]

Got it.

 

The key is to register the exe name under "FEATURE_96DPI_PIXEL" in the registry with a dword=1.

This makes TWebBrowser render correctly in a DPIAware applicaiton.

 

Thank you @Der schöne Günther for the hint!

Edited February 10, 2020 by Attila Kovacs

[pyscripter 689]

@Attila KovacsI tried your suggestion and it works!!