Re: [wxhaskell-users] RE: wxC questions, hugs, Gmane

[Daan L. <da...@cs...>]

Dear Surendra,

> Thanks for the help once again. I am now able to use some of the baseic functionalities, of wxC from lisp, but I am running into two issues.
> 
> 1. In my initialization function, I am not registering for any events, and I am running just few basic bitmap related functions, they all work fine. But when the initialization function finishes, my lisp ends unceremoniously , is this due to the code?
> " return wxApp::OnExit();"  
> 
> Does it causes the lisp to terminate? How can I avoid this problem? 

No, in principle the function would just return immediately.

> 
> 2. When I try to just create a frame in init function, (again without registering for any events), the lisp connection dies midway. Am I doing anything wrong here? 
> 

This is not the correct behaviour :-) The most obvious issue is related to static 
intializer in the wxWidgets library. First of all, execute the lisp code from a 
compiled program and see what happens.

-- Daan

(explanation: the wxWidgets library initializes static variables at dll load time
and doesn't reset them properly after OnExit. This means that an interpreter could
only use the main loop once -- the next time it would find the static variables
in an inconsistent state.)

> Thanks for your time and answer.