[Taskbar minimize/restore on scroll] Thumbnail flickering

[Deykii]

@m417z
When the mod is enabled, the thumbnails of tasks start flickering. Idk what to do with this, when I disable mod everything is fine

[m417z]

Can you please post logs and a video recording?

Please attach debug logs by following the instructions on the Troubleshooting page:
https://github.com/ramensoftware/windhawk/wiki/Troubleshooting#some-or-all-windhawk-mods-dont-work

• Disable the mod.
• Go to the mod's Advanced tab.
• Set Debug logging to Detailed debug logs.
• Click on Show log output.
• Enable the mod.
• Verify that the mod doesn't work, copy the log and save it to a file.
• Set Debug logging back to None.

In the "Verify that the mod doesn't work" step, trigger the flickering so that the relevant events will be logged.

[Deykii]

Can you please post logs and a video recording?

Please attach debug logs by following the instructions on the Troubleshooting page: https://github.com/ramensoftware/windhawk/wiki/Troubleshooting#some-or-all-windhawk-mods-dont-work

• Disable the mod.
• Go to the mod's Advanced tab.
• Set Debug logging to Detailed debug logs.
• Click on Show log output.
• Enable the mod.
• Verify that the mod doesn't work, copy the log and save it to a file.
• Set Debug logging back to None.

In the "Verify that the mod doesn't work" step, trigger the flickering so that the relevant events will be logged.

For some reason it is not visible on screen recording(at least I don't see it), so I recorded it on phone's camera.
Here's the log: https://ctxt.io/2/AAB4OUk4Ew
Here's the video(from phone): https://streamable.com/zj3bd6

[m417z]

I believe that I found the root cause of the problem. Can you please try the following version:
https://github.com/m417z/my-windhawk-mods/blob/8a4f8969665fc3660c0d0ad06b862f073e88cc1f/mods/taskbar-button-scroll.wh.cpp

To try it, disable the existing mod, then click the bottom right button to create a new mod, replace the code with the test mod code, click "Compile Mod", then "Exit Editing Mode".

[Deykii]

I believe that I found the root cause of the problem. Can you please try the following version: https://github.com/m417z/my-windhawk-mods/blob/8a4f8969665fc3660c0d0ad06b862f073e88cc1f/mods/taskbar-button-scroll.wh.cpp

To try it, disable the existing mod, then click the bottom right button to create a new mod, replace the code with the test mod code, click "Compile Mod", then "Exit Editing Mode".

I just forked it, now everything works fine! Thank you!!! But, is this normal? xD I didn't notice it actually

[m417z]

That's related to the problem of flickering. For fixing #661, I added code that refreshes the thumbnail after scrolling, but the bug was that it was refreshing it non-stop. Now it's refreshed once, 200 ms after the scroll. Perhaps this delay is not long enough. Can you edit the mod and change the following line:

SetTimer(hWnd, kRefreshTaskbarTimer, 200, 0);

For example, replace 200 with 1000. Does it help?

[Deykii]

That's related to the problem of flickering. For fixing #661, I added code that refreshes the thumbnail after scrolling, but the bug was that it was refreshing it non-stop. Now it's refreshed once, 200 ms after the scroll. Perhaps this delay is not long enough. Can you edit the mod and change the following line:

SetTimer(hWnd, kRefreshTaskbarTimer, 200, 0);

For example, replace 200 with 1000. Does it help?

Nope

[m417z]

Did you have the problem with the original 1.0.7 version, before this fix? Can you post a recording showing it? I can't reproduce it.

[Deykii]

Did you have the problem with the original 1.0.7 version, before this fix? Can you post a recording showing it? I can't reproduce it.

I reinstalled the mod, yeah, I had this problem

Recording.2025-01-14.184235.mp4

[m417z]

Ah, OK, the workaround I implemented only works when scrolling over the thumbnail preview. I didn't find an easy workaround for scrolling over taskbar items. Note that it's a Windows bug, and can also be reproduced without the mod if you're quick enough.

[Deykii]

Ah, OK, the workaround I implemented only works when scrolling over the thumbnail preview. I didn't find an easy workaround for scrolling over taskbar items. Note that it's a Windows bug, and can also be reproduced without the mod if you're quick enough.

Okay, thanks!!!

[Deykii]

It started flickering again 😭

[m417z]

Did you change anything? Does it flicker constantly like it did previously? Only when the mod (with the fix) is enabled?
I have no explanation for that, but if the answer to the above is true, I can try posting a mod version with more logs or reduced functionality to try and understand what causes it.

[Deykii]

Did you change anything? Does it flicker constantly like it did previously? Only when the mod (with the fix) is enabled? I have no explanation for that, but if the answer to the above is true, I can try posting a mod version with more logs or reduced functionality to try and understand what causes it.

I didn't change anything. It's flickering as it was previously. Only when forked mod is enabled.

[m417z]

Did you, by any chance, enable the mod without the fix? Enabling it may cause the issue, even after the mod is disabled, until explorer.exe is restarted.

If that's not the case, try the following: disable the current "Taskbar minimize/restore on scroll" mod, restart Windows Explorer in Task Manager, then install this mod using the same steps from my previous comment here, and let me know if you still see the issue:
https://github.com/m417z/my-windhawk-mods/blob/f68e89e8b203ea1ff52acf15f75e82a3611105e1/mods/taskbar-button-scroll.wh.cpp

[Deykii]

Did you, by any chance, enable the mod without the fix? Enabling it may cause the issue, even after the mod is disabled, until explorer.exe is restarted.

If that's not the case, try the following: disable the current "Taskbar minimize/restore on scroll" mod, restart Windows Explorer in Task Manager, then install this mod using the same steps from my previous comment here, and let me know if you still see the issue: https://github.com/m417z/my-windhawk-mods/blob/f68e89e8b203ea1ff52acf15f75e82a3611105e1/mods/taskbar-button-scroll.wh.cpp

I reinstalled the fork and it tarted work normally :0
I guess I'll do this regularly