Creating custom event in WxPython

[Sion Arrowsmith]

 <NutJob at gmx.net> wrote:
>Now when my socket thread detects an incoming message, I need my main
>thread to interpret the message and react to it by updating the GUI.
>IMO the best way to achieve this is by having my socket thread send a
>custom event to my application's event loop for the main thread to
>process. However, I'm at a total loss as far as creating custom events
>is concerned. The WxWindows documentation isn't very helpful on this
>either.
>I think I need to derive my own event class from the wxEvent class, but
>I have no idea HOW (i.e. what methods do I need to override, etc.) Can
>anyone help me?

(a) Consider whether you can do what you want with CallAfter().

(b) If you do have to go with a custom event, the idiom I've got here
is:

EVT_CUSTOM_WITH_DATA_ID = wxNewId()

def EVT_CUSTOM_WITH_DATA(win, func):
    win.Connect(-1, -1, EVT_CUSTOM_WITH_DATA_ID, func)

class CustomWithDataEvent(wxPyEvent):
    def __init__(self, data=None):
        wxPyEvent.__init__(self)
        self.data = data
        self.SetEventType(EVT_CUSTOM_WITH_DATA_ID)
    
    def Clone(self):
        return CustomWithDataEvent(self.data)

but do note that this is for wxPython2.4 -- amongst other differences,
EVT_CUSTOM_WITH_DATA() should be unnecessary in 2.6 (used Bind()
instead).

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