[x64] Wrong mouse wheel scrolling in Lister

[Sob]

Simple text file is opened in Lister. No problem in TC32, but in TC64's Lister scrolling by mouse wheel felt somehow strange. Closer examination revealed that Lister in TC32 respects settings from system mouse properties and always scrolls by the given number of lines (3 in my case). Lister in TC64 does not. It's still influenced by system settings (different values make it scroll by different number of lines), but the result is wrong. E.g. for set 3 lines it scrolls semi-randomly by 3-6 lines (it's different for individual files, but stays same for same files).

Windows 7 x64, both Classic and Aero themes, clean ini, both TC beta 1 and 2.

[ghisler(Author)]

Not confirmed here. Anyone else having this problem?

[Sob]

Test file with added line numbers for easy counting:

http://web.hisoftware.cz/sob/download/tc80b2x64-lister-wheel-scroll-bug-test-file.txt

System mouse wheel scrolling is set to 3 lines. When scrolling one step by one using the wheel, the line numbers are:

TC32: 001, 004, 007, 010, 013, 016, 019, 022, 025, 028, 031, 034, ... (correct)
TC64: 001, 005, 010, 014, 018, 026, 034, 040, 050, 054, 058, 066, ... (jumps from 4 to 10 lines)

The amount of lines scrolled is always the same for same file, but it's different for others, so it must depend on file content somehow. It wouldn't be a problem if it was just different number of lines, as long as the number would be the same for whole file. But when it varies, it makes the scrolling very unpleasant, you never know by how much it will move.

[ghisler(Author)]

Unfortunately I can't reproduce it even with your test file (Windows 7 x64, standard Aero theme).

Can anyone else reproduce it?

[Gerby]

Hi!

I actually can reproduce the behavior with the test file.

Here: TC 8.0 ß2 x64, Win 7 Ultimate x64, no special mouse driver (Microsoft, 2006-06-21, v6.1.7600.16385)

Greetings
Gerby

[petermad]

I can confirm that the test file provided scrolls further with for example turning the wheel 3 "bumps" in the x64 version than in the x86 version.

This is with KatMouse disabled. With KatMouse enabled, both versions scroll the same amount as the 32bit version without katMouse.

Standard Windows mouse driver (HID compatible mouse).

[Flint]

ghisler(Author)
I confirm it too, XP x64 SP2, TC 8.0β2 x64.
In my case each wheel's "tick" sometimes causes scrolling by very large number of lines: 1 page or more. Tested in Text, Binary and Hex modes.

No KatMouse or similar software is installed. In TC 8.0β2 x32 scrolling works correctly.

[ghisler(Author)]

I still cannot confirm it, but I found a possible reason: TC tries to handle scrolling AND also lets Windows handle it. I have changed that now in beta 3. Are you still able to confirm the problem?

[Flint]

ghisler(Author)
Seems to be fixed now.

[Sob]

Great! Good old reliable scrolling is back, what a relief. :) In other words, fix confirmed.

[petermad]

Confirmed fixed in TC 8.0b3 x64

[ghisler(Author)]

Nice to hear that, thanks for checking!