Revision: 8723
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=8723&view=rev
Author: efiring
Date: 2010-10-03 20:45:38 +0000 (Sun, 03 Oct 2010)
Log Message:
-----------
docs: in event_handling, note that weak references to callbacks are used.
Modified Paths:
--------------
branches/v1_0_maint/doc/users/event_handling.rst
Modified: branches/v1_0_maint/doc/users/event_handling.rst
===================================================================
--- branches/v1_0_maint/doc/users/event_handling.rst 2010-09-27 18:51:05 UTC (rev 8722)
+++ branches/v1_0_maint/doc/users/event_handling.rst 2010-10-03 20:45:38 UTC (rev 8723)
@@ -46,6 +46,13 @@
fig.canvas.mpl_disconnect(cid)
+.. note::
+ The canvas retains only weak references to the callbacks. Therefore
+ if a callback is a method of a class instance, you need to retain
+ a reference to that instance. Otherwise the instance will be
+ garbage-collected and the callback will vanish.
+
+
Here are the events that you can connect to, the class instances that
are sent back to you when the event occurs, and the event descriptions
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