Multi-threading... two wxFrames

wxPython Users
1

Hello Everyone,

I am not sure how to ask this question but as a newbie to wxPython here
goes. Please pardon my ignorance here.

My application shows wxFrame1. I would like to start another thread so that
I can open wxFrame2 and run them both simulteneously?

I am happy to research this if you would point me to any websites.

Thanks in advance,

Todd

2

Short answer: Bad idea.

There are numerous writings on the web regarding this. All your
wxPython code needs to be in the main thread.

General idea is that if you need GUI work done in
other-than-main-thread(s) you communicate that to your main thread and
let the main thread do the GUI work. I do this with events which, so
far, works well.

···

On Sat, 2004-01-03 at 21:02, Todd G. Gardner wrote:

Hello Everyone,

I am not sure how to ask this question but as a newbie to wxPython here
goes. Please pardon my ignorance here.

My application shows wxFrame1. I would like to start another thread so that
I can open wxFrame2 and run them both simulteneously?

I am happy to research this if you would point me to any websites.

Thanks in advance,

Todd

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3

Jim West wrote:

General idea is that if you need GUI work done in
other-than-main-thread(s) you communicate that to your main thread and
let the main thread do the GUI work. I do this with events which, so
far, works well.

What he said. Also, look at:
http://wiki.wxpython.org/index.cgi/LongRunningTasks

and be sure to look at the bottom for the noate about wx.CallAfter()

-Chris

···

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4

Todd G. Gardner wrote:

Hello Everyone,

I am not sure how to ask this question but as a newbie to wxPython here
goes. Please pardon my ignorance here.

My application shows wxFrame1. I would like to start another thread so that
I can open wxFrame2 and run them both simulteneously?

There is no need to have a thread per frame. The MainLoop can dispatch events to any number of top level windows just fine. The thing you may want to use alternate threads for is background processing or time consuming things so your GUI can remain responsive while the long running task is running. Just be sure to *not* call any GUI functions/methods from the thread or you'll run into problems. There are lots of examples in this list archive, the wiki and the demo about how to pass messages/events/etc. from the worker threads to the gui thread.

···

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Robin Dunn
Software Craftsman
http://wxPython.org Java give you jitters? Relax with wxPython!