Windows 10: 'SysListView32' Bug with multiple items selection: still not fixed in Windows 11 23H2

When I use our own 32 bit application, the mouse cursor still jumps to a corner when I do the lasso selection in a listview.This has been marked as "fixed" in Win10 already, but we still see the problem in Windows 11 23H2.The application was build with C++ Builder 2007 using the VCL.Some links for the same problem:Mouse cursor jumps to top left corner randomly on 1709 16299.15 - Microsoft Communitywinapi - bug with listview scrolling during mouse lasso selection windows 10 update 16299 - Stack Overflow*IMPORTANT* - 'SysListView32' Bug with multiple items selection with - Microsoft Communit

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*IMPORTANT* - 'SysListView32' Bug with multiple items selection with 'Windows 10 Fall Creators Update'

Dear Microsoft,

After the 'Windows 10 Fall Creators' update im having a problem with a lot of my software.

When i have a program that is using a 'SysListView32' component where you can select multiple files.

You will notice if you scroll down to the middle of the list by mousewheel or the scrollbars itself, and then try to select multple items,

that the mouse starts to go by itself to the bottom or top of your screen.

If you then try to keep holding down left button and moving in a direction, you see it's resisting, it wants to go to the bottom or top of screen.

Results:

Windows 10 Fall Creators version:

1709 (16299.19)

Test environment:

1 PC: Clean installation Windows 10 Pro, nothing installed except WinRar. To be totally sure.

4 PC: They had nothing in common with eachother, only that they all using a 1920x1080 screen and Intel i7 (860 up to 6700k) generation cpu

Results:

All the 5 PC's ive tested now when i scroll down to middle of list (SysListView32) at 'Icon' mode (but also 'Details' mode), and i try to select multiple items/files by mouse, the mouse starts to go to bottom or top of screen.

Happens with:

'Microsoft Windows Explorer', 'WinRar', 'WinZip', '7z', 'Ws FTP Pro'. they all have this bug now.

More applications i did not test with, it's obvious its the SysListView32 object.

Windows 10 Fall Creators version (Insiders edition):

1709 (17025.1000) and (17035)

Test environment:

1 PC: Clean installation Windows 10 Pro Insiders, updated with latest updates, nothing installed except WinRar to test.

Results:

For 'Microsoft Windows Explorer' the bug has been solved.

BUT. the bug remains for:

'WinRar', 'WinZip', '7z', 'Ws FTP Pro', and any non-Microsoft software for me.

Systems used:

I7 860 up to 6700k, 6 up to 16 GB, Nvidia 660TI up to 780TI, 1920x1080 monitors, SSD drives, Logitech mices (gaming and non-gaming).

I've even tested it to create a 'SysListView32' object with the 'CreateWindowEx' and stripped it to the bone.

Not even subclassed it or anything, and added 100 items to the list so that the listview gets scrollbars, then if you scroll to middle and try to select multiple items you see this bug happens.

Somewhere Windows 10 Fall Creators update is calling a 'SetCursorPos' API with the wrong coordinates.

Can someone please confirm this is a bug after the Fall Creators update?

Because this never happened before from Windows 10 all the way down to Windows XP.

You can test it yourself by having the Fall Creators update, then install rarlab.com (WinRar).

Then add 100 small files to a archive, then open the created archive with WinRar. Scroll down to middle of list, and then try to select multiple items. You will notice the mouse starts to go all over the screen
selecting anything underway.

Moved from: (Windows / Windows 10 / Security & privacy)

 

SysListView32 mouse selecting bug after Windows 10 - Fall Update

We appreciate your efforts in resolving this issue. We noticed that you already posted an inquiry regarding this issue to the
Microsoft Development Network forums.
We highly suggest that you continue to interact on that community since it caters to IT professionals that can further assist you with this concern.

Regards.

 

SysListView32 mouse selecting bug after Windows 10 - Fall Update

Dear Microsoft

You know you can use the api CreateWindowEx to create a 'SysListView32'.

If you have created a listview with API, then set it to large icons, or details mode.

Now add 100 items to the listview so that you will get a vertical and or horizontal scrollbar.

Then scroll to middle of the listview.

Try to select items, you will notice the Listview will move the mouse cursor to the lower corner or top of the screen.

This happened after the Fall Creators Update (of october 2017) version 1709.

The component that Microsoft updated to point you in the direction is 'mscomctl.dll' which has the bug.

(since Windows XP, up to vista, 7, 8, and 10 (before the Fall update) this always worked perfect.

You can try this bug with WinRar, WinZip, 7zip, of any program that using a Listview (SysListView32).

Just add enough items to the listview to get scrollbars, scroll to middle, try to select multiple items, and voila, the mouse starts to move by itself all over the screen.

I've tested this bug on 4 different Windows 10 machines before and after Fall update.

On 7z forums (which is another proggy i use) they have the same problem).

Ive also tested it myself with WinRar and WinZip. both also having this bug.

Please fix this bug as soon as possible, my software relies heavily on the SysListView32 like a lot of other software.

Kindly regards,

Michiel

Netherlands

Moved from: Windows / Windows 10 / Security & privacy