TC x64 9.51 RC2 - Dark mode, white flash when switching tabs

[iteg]

TC x64 9.51 RC2 - Dark mode, white flash when switching tabs.

On the topic of the previous problem: "Multi-Rename Tool shows a white flash on dark mode".

For example, in the dialogs: "Find Files", "FTP: connection details", "System Information".
Windows 7 x64 SP1. Classic theme. Advanced system settings \ Visual Effects \ Adjust for best performance.

[ghisler(Author)]

I don't see any flash when switching tabs in classic theme, sorry.

[iteg]

It is visible when you switch between tabs with the mouse, but there is no CTRL + TAB.

[siealex]

I tried it in the Find Files dialog - on the third tab I got a white flash in one of text input fields.

[ghisler(Author)]

I'm really sorry but I cannot reproduce it. I will move it to "will not be changed".

[iteg]

Use the utility "Spy++" (spyxx_amd64.exe) from MS Visual Studio.
Using the "Find Files" dialog box as an example.
In Spy++, track messages for SysTabControl32: WM_KEYDOWN, WM_KEYUP, WM_LBUTTONDOWN, WM_LBUTTONUP and WM_PAINT.

If you switch tabs using CTRL+TAB, then it will:
...
WM_KEYDOWN
WM_PAINT
WM_KEYUP
...
Only one WM_PAINT message. Good.

If you switch tabs with the mouse, it will:
...
WM_LBUTTONDOWN
WM_PAINT
WM_PAINT
WM_LBUTTONUP
WM_PAINT
...
There will be three messages to redraw. For one WM_LBUTTONDOWN message, two WM_PAINT are redundant.

Flicker is clearly visible. The entire area of ​​the tab is drawn in white, and then black, rather than individual components. I can’t record a video because I did not find a video capture program with the necessary FPS.
Perhaps the situation is affected by the use of an integrated GPU.
Try lowering your screen refresh rate to 50Hz.
I use an LCD monitor (TN + film).