[Bug 52534] ListView: multi select never sends LVN_ODSTATECHANGED

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52534

--- Comment #2 from Angelo <winehq-bugs at angelohaller.com> ---
Updated tester with more debug output:

https://github.com/szanni/Windows-classic-samples/blob/a670d65e47e399fe9f6dc10378ea5035a76b9fd5/Samples/Win7Samples/winui/controls/common/vlistvw/a.exe?raw=true

Clearer instructions on how to reproduce:

1. Run a.exe included in this comment
2. Click `Item 1`
3. Hold down Shift and click `Item 5`

See the differences in the output log between Windows 7 and wine 7.1.
LVN_ODSTATECHANGED does not get signaled on wine 7.1.

I actually discovered the FIXME in the LISTVIEW_SetGroupSelection function.
I was looking at the LISTVIEW_AddGroupSelection which does actually work as
intended.

Interestingly enough LVN_ODSTATECHANGED is emitted when holding down
CONTROL+SHIFT as this uses the code path LISTVIEW_AddGroupSelection instead of
LISTVIEW_SetGroupSelection.
I can however not discern why there are two entirely different functions
seemingly doing the very same thing - just very differently. I must be missing
something here.


There is another difference `LVN_ITEMCHANGED: -1` that should be addressed in a
different issue though.

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