[wxPython-users] calling wxPython functions from different thread

[Paul Sijben]

I have been bitten by this repeatedly. I use queue.queue()s to 
communicate from the threads of my app to the UI.

Paul

Phil Mayes wrote:
> At 07:39 AM 2/11/2008, you wrote:
>> hello again,
>>
>> I was trying to make my application multithreaded, I put my 
>> calculations in different Thread, then I gave this Thread name of the 
>> function to call when it finish.
>> This function updates ListCtrl.
>> So it works this way:
>>
>> - ListCtrl has old values
>> - I want to add new element, it requires calculations
>> - I call different thread and give it reference to Update() function
>> - I do different things while thread does its calculations
>> - thread finishes calculations and calls Update()
>> - Update() regenerates data in ListCtrl
>>
>> The problem is, that my GUI is unstable after last step. ListCtrl is 
>> not updated until I use scroll, then it updates, but I can't click 
>> anything else in the wxPython window.
>>
>> Can I use threads this way when developing wxPython application?
>>
>> If not, how can I update ListCtrl when another Thread finish its job?
>
> You can't update the user interface from any thread except the main 
> one.  Use wx.CallAfter() to call your function.
>
> Phil
>
>
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Paul Sijben                    	        tel: +31334566488
Eemvalley Technology     		fax: +31334557523
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