canvasevent: fix bailout ungrab exception
authorAndrew Chadwick <andrewc-git@piffle.org>
Tue, 9 Apr 2013 16:16:07 +0000 (17:16 +0100)
committerAndrew Chadwick <andrewc-git@piffle.org>
Tue, 9 Apr 2013 16:16:07 +0000 (17:16 +0100)
commit4918fdf9d8aab7b8386e5b3276377cec51e80693
treef054245487636f6204471823c696ff502db3fd94
parent819eae44cd225424e931761ee3697fceeaa78fdb
canvasevent: fix bailout ungrab exception

gdk.pointer_ungrab() requires an argument in GTK3 mode proper.

https://gna.org/bugs/?20725
gui/canvasevent.py