GUI: closing Scilab when halt() or input() is run through a callback of an undockable GUI keeps the GUI as a ghost process
Reported by Samuel GOUGEON (@sgougeon)
HOW TO REPRODUCE THE BUG:
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demo_gui
halt("type enter to continue...")
// do not type anything, but close Scilab by clicking the X cross on the top right corner of the IDE
// => Scilab quits, but the demo GUI remains. Trying to close it does nothing.
// => wscilex is still running among the list of processes as a ghost one.
OTHER INFORMATION:
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Win7_x64
Bug met while seeing the polarplot demo.