IsHungAppWindow reports hung within 5 seconds

IsHungAppWindow function is a function to get the current hung status.
Detection of the hung status has to be delayed 5 seconds (MSQ_HUNG).
ReactOS wrongly reports the hung status immediately after the message was stopped.

The test programs: HungChecker.zip and HaltWindow.zip
The screenshot: hung-report.png

IsHungAppWindow has to report hung for the Ghost windows.