Re: Application hangs after thread execution

[Matt Bragano <maestro485 comcast net>]

Ahh I see now.  I'm still a student so this is all still a learning 
process for me.  Thanks for the help! 

Thanks again,
Matt

Nickolai Dobrynin wrote:
> Matt,
>
> The rule of thumb here is to either (a) make all GUI calls from the 
> same thread or (b) explicitly synchronize each and every such
> call with a lock.  In your case, on_search_button_clicked violates 
> that principle.
>
> If my understanding of the task at hand is correct, you are trying to 
> initiate a thread with a button click.  That thread, in turn, would 
> initiate a database access.  Once this completes, you want the string 
> "Done" displayed in the GUI.  Is that correct?  If so, I suggest you 
> take a look at Glib::Dispatcher
>
> http://www.gtkmm.org/docs/glibmm-2.4/docs/reference/html/classGlib_1_1Dispatcher.html
>
> and use it to inform the GUI thread that the DB access is completed.
>
> One more thing. Are you sure on_search_button_clicked() and 
> search_db() are the right place for the show_all call?  Don't you want
> it to be a part of your initialization logic, i.e. immediately after 
> you are done setting up your widgets in the beginning?
>
>
> Regards,
>
> Nickolai