Vadim Zeitlin 9655ca9e68 Close the gestures frame too in the event sample ...

Make "Exit" menu item really exit the sample again instead of just
closing the main window, but possibly leaving the gestures testing
window still open and thus not really exiting the program.

Also avoid creating more than one gesture window, use the existing one
if we had already opened it.

2017-11-30 21:40:24 +01:00

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