René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"WXAgg embedded navigation zoom, home, back not working","articleBody":"I have a figure canvas and navigation bar embedded in a wx.Dialog.  In matplotlib version 1.2.1 and earlier the zoom, home, back (and pan) all worked fine.  If I upgrade to 1.3 (or 1.4.2) zoom, home, and back stop working.  Only pan works.   Any time I zoom, the zoom rectangle is drawn but nothing happens.  The zoom rectangle remains on the screen after I release the mouse button.   If I then switch to pan and left-click to pan the zoom takes effect.   Same thing with the home and back buttons.  If I click them nothing happens until I switch to pan and actually left click and pan then they take effect.\n\nI also tried this with the user interface example: embedding_in_wx2.py\nRunning it alone it is fine.  If I put it in my app and do the following:\n\n``` python\n    def OnShowClicked(self, event):\n        frame = CanvasFrame()\n        frame.Show(True)\n```\n\nThe window shows correctly, but the zoom, home, back don't work just as I described above.\n\nI looked through the changes between 1.2.1 and \u003e=1.3 but I didn't see anything that would point to this.  What changed between these versions that might causes this issue.\n\nHow do I work around this issue?  Is there an example somewhere that shows the right way to do things now to get zoom, home, back, etc. working again?\n\nThanks.\n","author":{"url":"https://github.com/digitalnumeric","@type":"Person","name":"digitalnumeric"},"datePublished":"2015-02-16T23:17:04.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":22},"url":"https://github.com/4109/matplotlib/issues/4109"}