webview support high DPI?

[Jzhenli]

Hi, I am using Win11 with toga webview and I have a high DPI monitor with 150% scaling. The problem is that the whole app looks blurry. Not sure if toga webview support high DPI?

[freakboy3742]

We're not doing anything toe explicitly enable or disable HiDPI handling on a per-widget basis. If the Winforms API requires a specific setting to enable DPI mode, we're not aware of it.

[Jzhenli]

This isn't specific to the webview, but "the whole app looks blurry" is a known problem which we recently fixed (#2155), but have not yet released.

Does this feature have been merged in V0.4.9? @mhsmith

[mhsmith]

No, it will be released as part of version 0.5.0, probably within the next month.

[Jzhenli]

No, it will be released as part of version 0.5.0, probably within the next month.

@mhsmith I tried V0.5.0 and found some issues. My laptop system is Windows 11 with a screen resolution of 2240x1400 and scaling at 150%. There is an external display connected to the laptop, with a resolution of 2560x1440 and scaling at 100%. When my Toga application is displayed on the external display, it works normally. However, when I drag and drop it onto the laptop's own screen, there will be a large shadow on the Toga application. As shown in the following picture

[mhsmith]

It looks like this glitch is happening inside a WebView. Please make an example app reproducing this with the smallest possible amount of code, and the simplest possible HTML file, and post the Python and HTML source to a new issue.

[Jzhenli]

ok, I have open issue 3264 @mhsmith