[TC11.x] A flickering window appears at TopLeft on screen before centering.

[cpp64]

# Windows 11 24H2
# TC 11.x (64bit) with a fresh wincmd.ini

On TC11.x, a flickering window appears at TopLeft on screen before centering.

This flickering windows at TopLeft is not captured by the rec-program(ffmpeg).
(I had captured my desktop using the ffmpeg with 120 fps, but the flickering window was not captured.)

So I captured the flickering window on monitor using a phone camera.

// wetransfer (7 days) : ahk(for reproducing), mp4, jpg
https://we.tl/t-9Q7jiPYbt5

[ghisler(Author)]

I don't understand what's happening in your video. Why does the file name constantly change?
The window you see is normally shown when reading a directory takes longer than about 2 seconds, so you can abort the reading (e.g. hanging network drive, or very large directory).

[Dalai]

I don't understand what's happening in your video. Why does the file name constantly change?

Take a look at the AHK script within the archive. Here's the relevant excerpt:

Code: Select all

n := 0
	Loop 1000
	{
		n += 1
		Send("+{F6}")
		Send(n)
		Send("{Enter}")
		Sleep(200)
	}

It's a counter that it sent to TC as the new filename for the renaming operation started by Shift+F6.

[white]

The window you see is normally shown when reading a directory takes longer than about 2 seconds, so you can abort the reading (e.g. hanging network drive, or very large directory).

It's not that window. It's the normal Rename/Move window.
There's nothing wrong with it, it is always displayed.

Edit:
Sorry, I didn't pay good enough attention and wrongly assumed it was about the normal Rename/Move Window.

[ghisler(Author)]

I see, so what do you expect me to change?

[cpp64]

I see, so what do you expect me to change?

Sometimes a new window appears at TopeLeft on screen for a very short time, then it moves to the center of screen.
The TopLeft window does not appear on win10.
It seems to be a win11-24h2's problem.
If you encounter the same issue later on win11-24h2, see if you can fix it.

// wetransfer (7 days) - mp4, ahk
https://we.tl/t-eeZ3IJ56mb

The ahk script is just for creating a window for test.
You can change it to any window that you wnat.

[white]

It seems to be a win11-24h2's problem.

I don't have Windows 24H2 yet, so I can't test that. It does not happen om my Windows 23H2 system.

[cpp64]

I don't have Windows 24H2 yet, so I can't test that. It does not happen om my Windows 23H2 system.

I think that this issue has occured from win11-24h2.

[ghisler(Author)]

I don't have windos11-24h2 on any of my PCs either, and the update isn't even offered in a virtual machine.

[ghisler(Author)]

I just got Windows 11 24h2 yesterday. I tried your script but can't see any flickering window in the upper left corner, neither with Total Commander 32-bit nor 64-bit.

[cpp64]

The problem seems to be MS's fault.
The top-left flickering window also appears in other programs.

[AntonyD]

Hmm, it would be interesting to watch the video again - but for some reason you chose file-hosting server with a very limited duration.
Maybe it is worth uploading files to longer-lived servers?

[ghisler(Author)]

I have uploaded it here:
https://www.totalcommander.ch/img/tc-topleft.zip

[AntonyD]

Yes, definitely such behavior is not observed anywhere else here.
BUT on the video - according to my feelings - we can see quite a clear process of renaming.
With a corresponding window from Total. It's just that at some point its coordinates jump
outside the main window, and are somewhere a little further than the upper left corner.

[ghisler(Author)]

I have made a few more tests and I can see a very faint flickering in the left top corner (but no window). It probably depends on the display adapter (graphics card) speed. I have tested it in the debugger, but single stepping through the code does not show this flickering. The window is shown with ShowWindow(hwnd,SW_SHOWNORMAL);
For testing, I have tried to set the position directly by calling
SetWindowPos(hwnd, 0, left, top, width, height, SWP_NOZORDER + SWP_NOACTIVATE + SWP_SHOWWINDOW);
instead, but I get the same flickering when using the script.

So my guess is that this is some weird Windows bug where Windows first shows the window and then moves it to the right place, which is normally invisible due to buffering, but appears when doing it quickly in a row. Since I cannot fix something like this, I'm moving this thread to "Will not be changed".

Moderator message from: ghisler(Author) » 2024-11-29, 09:52 UTC

Moved to will not be changed