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GridCtrl: repainting performance issue in dark mode on Win 10 [message #53310]

Fri, 27 March 2020 20:35

przem_kaz
Messages: 3
Registered: April 2010
Location: Poland

Junior Member

Hi U++ comunity,
It's seems that there is (still) some repainting performance issue with GridCtrl in Dark Mode in Win 10.
I've recompiled one of my apps that heavily used a GridGtrl with the nightly U++ and now when I switch to Dark mode in Win10 (build 1903) I notice a huge delays in repainted.
First I thought that it is some issue in my code but it is easly reproducable e.g. \reference\GridCtrlTest or example\HomeBudget have the same issue in dark mode in Win10.
On Linux seems that everything is fine with GridCtrl in dark modes but I tested only on Manjaro KDE and on Mint 19.3 with Cinamon.

Best regards
Przemek

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Re: GridCtrl: repainting performance issue in dark mode on Win 10 [message #53320 is a reply to message #53310]

Sat, 28 March 2020 20:40

mirek
Messages: 14255
Registered: November 2005

Ultimate Member

przem_kaz wrote on Fri, 27 March 2020 20:35

Hi U++ comunity,
It's seems that there is (still) some repainting performance issue with GridCtrl in Dark Mode in Win 10.
I've recompiled one of my apps that heavily used a GridGtrl with the nightly U++ and now when I switch to Dark mode in Win10 (build 1903) I notice a huge delays in repainted.
First I thought that it is some issue in my code but it is easly reproducable e.g. \reference\GridCtrlTest or example\HomeBudget have the same issue in dark mode in Win10.
On Linux seems that everything is fine with GridCtrl in dark modes but I tested only on Manjaro KDE and on Mint 19.3 with Cinamon.

Best regards
Przemek

Good catch, thank you. I think I know what the problem is, trying to fix it.

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Re: GridCtrl: repainting performance issue in dark mode on Win 10 [message #53323 is a reply to message #53310]

Sun, 29 March 2020 13:42

mirek
Messages: 14255
Registered: November 2005

Ultimate Member

przem_kaz wrote on Fri, 27 March 2020 20:35

Hi U++ comunity,
It's seems that there is (still) some repainting performance issue with GridCtrl in Dark Mode in Win 10.
I've recompiled one of my apps that heavily used a GridGtrl with the nightly U++ and now when I switch to Dark mode in Win10 (build 1903) I notice a huge delays in repainted.
First I thought that it is some issue in my code but it is easly reproducable e.g. \reference\GridCtrlTest or example\HomeBudget have the same issue in dark mode in Win10.
On Linux seems that everything is fine with GridCtrl in dark modes but I tested only on Manjaro KDE and on Mint 19.3 with Cinamon.

Best regards
Przemek

Hopefully fixed in trunk, please check.

Mirek

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Re: GridCtrl: repainting performance issue in dark mode on Win 10 [message #53330 is a reply to message #53323]

Sun, 29 March 2020 17:30

przem_kaz
Messages: 3
Registered: April 2010
Location: Poland

Junior Member

With the latest version from trunk, looks like GridCtrl in dark mode on Win10 works as expected.

Thank you Mirek!

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