Hello,
I'm having trouble catching events from my multi threaded app. I'm using
wxpython and running several threads under the main wxApp thread. One of the
threads creates a COM object for an OPC server. I'm using dispatchWithEvents()
to get the COM object. When I do this the server will post an event to the
OnDataChange() method in my application.
Everything runs wonderfully when I create the COM object within the main thread
(wxApp). However if I create it from within a sub thread then the OnDataChange
is not being called.
My understanding of how multithreaded applications work is basic. I'm using
queue's and threading.locks to safely manage data. However I don't understand
how messages and events are handled in multi threaded apps with different
apartments. The COM object I created is a client to an OPC server. I suspect
the server lives in a different apartment and that I must handle how messages
and events are passed between different threads/apartments.
Where should I start reading to learn more and/or is there a standard way to
assure my events get posted across apartments/threads?
thanks,
Jeff
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