GUI flashes on TC start

[redfox]

I just upgraded from TC 9.12 to 9.20 and noticed, that its GUI elements (icons, buttons, arrows etc.) reload (flash) just after TC startup.
v9.12 was OK.

Win7/32.

[tuska]

viewtopic.php?t=50072

[redfox]

Thanks for the link.
The bug is still not fixed.

[ghisler(Author)]

NOT confirmed. Please provide a details and a settings file to reproduce it.

[redfox]

I tested it again.

What does flash (blink) exactly:

- disk toolbar
- navigation buttons (go to parent, go to root), history and bookm. button
- scrollbars
- frames, surrounding the file panels

What does not flash:

- top toolbar with custom icons
- bottom buttons (F3-F8, exit)

When I use an empty .ini file, the flashing is (due to the default flat interface) less noticeable, but still present.
Here is my settings file:

Code: Select all

https://uloz.to/!JRd4MQYDbmH8/wincmd-ini

[ghisler(Author)]

I found something: On Windows 7, I get a WM_THEMECHANGED notification from Windows on startup, although the theme didn't actually change! TC handles this by reloading the theme files, and (with a delay of 1 second) by refreshing the entire window. This is necessary in case of real theme changes to remove artifcats from the previous theme. I will ignore WM_THEMECHANGED during the startup phase.

[redfox]

Ok. If you have a test build, post a link here, I can check it.

[petermad]

I found something: On Windows 7, I get a WM_THEMECHANGED notification from Windows on startup, although the theme didn't actually change! TC handles this by reloading the theme files, and (with a delay of 1 second) by refreshing the entire window. This is necessary in case of real theme changes to remove artifcats from the previous theme. I will ignore WM_THEMECHANGED during the startup phase.

Is this related to this: https://www.ghisler.ch/board/viewtopic.php?p=341059#341059 where I point out a difference in behaviour in Win 7 and 10?

[ghisler(Author)]

It could be - we will see with the next beta version...

[ghisler(Author)]

This should be fixed in TC 9.21 rc1, please test it! The new version should prevent the short flash about 1 second after starting. It will not prevent the re-loading of the button bar if this becomes necessary.

[petermad]

And unfortunately it does not prevent the flashing of the desktop icons under Windows 7 when TC starts or restarts.

[ghisler(Author)]

And unfortunately it does not prevent the flashing of the desktop icons under Windows 7 when TC starts or restarts.

I cannot do that because it's a Windows bug.

[redfox]

And unfortunately it does not prevent the flashing of the desktop icons under Windows 7 when TC starts or restarts.

I cannot do that because it's a Windows bug.

I use the TC version 9.21a, and there is no desktop icons flashing in Windows 7 SP1 32bit.

[ghisler(Author)]

It only happens when calling certain Windows functions, e.g. to extract icons. If you open TC with two empty folders, you will not get a desktop flash.

[petermad]

If you open TC with two empty folders, you will not get a desktop flash

Hmm - I only see that under Windows 10. If I open TC with two empty folders under Windows 7, I still see the flash.

Interstingly enough If I open TC with two empty folders under Windows 10, and I the leave the empty folder - I see the flash.