[Bug 53444] user32:input & user32:msg - test_mouse_ll_hook() sometimes gets an unexpecteg mouse position on Windows

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53444

François Gouget  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|user32:msg -                |user32:input & user32:msg -
                   |test_mouse_ll_hook()        |test_mouse_ll_hook()
                   |sometimes gets an           |sometimes gets an
                   |unexpecteg mouse position   |unexpecteg mouse position
                   |on Windows                  |on Windows

--- Comment #2 from François Gouget  ---
The same failure can happen in user32:input's test_mouse_ll_hook():

input.c:1281: Test failed: GetCursorPos: (100,100)
or
input.c:1291: Test failed: Wrong set pos: (100,99)
or
input.c:1447: Test failed: Wrong new pos: (160,160)

Again this happens on all Windows versions, from Windows 7 to Windows 10 21H2,
except, it seems, Windows 8. And the coordinates also change from one run to
the next but always within the exact same 14 values as for user32:msg (out of
554 failure cases).