Do a sanity check onto the dialog box type before terminating it. As it stands now, a call of PostQuitMessage() is invoked even when the dialog box is modal. This is illegal due to the fact that the shutdown dialog box is initiated by the "Security" main window thus WlxDialogBoxParam.
A call to PostQuitMessage onto a modal dialog box leads to a undefined behaviour, as it'll not just terminate the thread but also eventually killing the Winlogon process whose the thread belongs to.
CORE-17535
Implement the re-worked shut down dialog box as well as implementing fancy log off dialog box.
- Fancy shut down dialog box has been redesigned to be more comparable to of XP.
- Implement features that were missing earlier.
- Implement the fancy log off dialog which is more comparable to of XP.
A ros specific addition that does not exist on Windows.
Default for Server is still the classic shutdown dlg,
no change on that.
But interested users can manually now create the registry setting
"EnforceFriendlyShutdown" REG_DWORD to "1"
within "SYSTEM\\CurrentControlSet\\Control\\Windows"
to allow overriding the Windows default behavior
without relying on changing the product version number, because
that would not be side-effect-free.
Addendum to 0.4.15-dev-650-g
2edcb58e65
