Mouse scroll not working in Full view

Asmix · Post by *Asmix » 2018-03-12, 16:41 UTC

Mouse scroll not working in Full view with files count over 65533 (Windows XP SP3, TC 9.12)

Post by *ghisler(Author) » 2018-03-15, 10:50 UTC

Unfortunately this is a limit of the Windows Listbox control, not Total Commander.

DrShark · Post by *DrShark » 2018-04-01, 21:00 UTC

2ghisler(Author)
In this post it was menitoned that listview control doesn't seem to have such limit. Have you considered a possibility to replace a listbox with listview?

In next post of mentioned topic there was also a suggestion to solve this by a catch of WM_MOUSEWHEEL event internally by TC. Did you try it? If yes, can you share a reason why it is not implemented in TC?

Post by *ghisler(Author) » 2018-04-03, 14:26 UTC

Listview was too slow in my tests a long time ago.

DrShark · Post by *DrShark » 2018-05-04, 18:49 UTC

2ghisler(Author)
Now when this topic is in "Behaviour which will not be changed" subforum, there is still unanswered question: did you try to fix the issue using this suggestion? If yes, what results did you get?

Post by *ghisler(Author) » 2018-05-06, 09:02 UTC

No I didn't. There is a big danger that this will cause a lot of new problems, e.g. for a mouse with 2 wheels, for touchpad scrolling, when the user changed the number of lines per scroll, or for vendor-specific mouse drivers.

DrShark · Post by *DrShark » 2018-05-06, 11:19 UTC

Well, you could add it as a feature disabled by default (and enabled only via wincmd.ini). It has been requested in 2003, so if implemented then, today almost all possible problems would be either known (and documented) or fixed.

Post by *ghisler(Author) » 2018-05-07, 07:50 UTC

I just tested it, and mouse scrolling DOES work here both in Windows 7 and 10 with 68607 files in one directory, both in TC 32-bit and 64-bit. So apparently Microsoft fixed the bug themselves...

DrShark · Post by *DrShark » 2018-05-07, 14:49 UTC

For a number of items you tested I can confirm mouse wheel scroll works on Vista, but NOT on Windows XP Home (both 32-bit, tested file panel (details view), SyncDirs, MRT).

Post by *ghisler(Author) » 2018-05-07, 20:48 UTC

Since it's a minor problem and XP is out of support, I think I can leave it as it is now.

DrShark · Post by *DrShark » 2018-05-07, 22:54 UTC

It would be nice to know whether some listbox items limit for mouse wheel scroll exists on Vista+...

Post by *ghisler(Author) » 2018-05-08, 09:51 UTC

Probably 2^31 (32-bit signed), but you will never reach that.