[wxpython-users] Re: [newbie] Connection between app and frame?

[Christopher Barker]

Gilles wrote:
> But since I can call the frame class and instance whatever I like, how
> does app knows about frame?

As you've seen from the messages here, there are lots of ways, but my 
earlier suggestion:

"put a reference to the frame in the app"

I think is the best way to go -- it's clear an concise.

The demo code form the book you're looking at is simplified to the 
easiest way to get an app up. For a more complicated app, you're likely 
to want to subclass wx.app. This is how you do that:

class MyApp(wx.App):
     def OnInit(self):
         self.frame = MyFrame(None, -1)
         self.SetTopWindow(self.frame)
         self.frame.Show()
         return True

A = MyApp()
A.MainLoop()

Note that you do it in OnInit(), rather than __init__, 'cause the app 
needs to be initialized before you can create frames and such. OnInit() 
will be called after the app is initialized.

-Chris




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