[Scummvm-tracker] [ScummVM :: Bugs] #15210: GUI: GMM: Mouse cursor is offset when screen is shaking

[ScummVM :: Bugs]

#15210: GUI: GMM: Mouse cursor is offset when screen is shaking
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Reporter:  antoniou79      |      Owner:  (none)
    Type:  defect          |     Status:  new
Priority:  normal          |  Component:  GUI
 Version:                  |   Keywords:
    Game:  King's Quest 4  |
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 This is tested on ScummVM 2.8.0 and a recent daily build from master HEAD
 2.9.0git on Windows 10 x64.

 The game used in testing is KQ4 Perils of Rosella (GOG version, English),
 SCI engine.

 When Rosella falls off a cliff (or a significant height of stairs) the
 screen shakes up and down and it is game over.

 If, while the screen is shaking, the user brings up the ScummVM GMM
 (Global Main Menu, typically with hotkey combo Ctrl+F5), then there is a
 chance that the mouse cursor will be offset with respect to activating the
 on-hover event for the buttons (and their on-click event).

 See attached video for the example of the bug.

 As shown in the video, it's not deterministic that the user will get the
 bug, but I am able to reproduce it with a certain high probability.
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Ticket URL: <https://bugs.scummvm.org/ticket/15210>
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