Re: [Wxlua-users] Native callbacks in wxLua?

[John L. <jla...@gm...>]

On 1/8/06, Chris Marrin <ch...@ma...> wrote:
>
> A while ago, John and I discussed the changes I made to the older
> version of wxLua I was using. My big issue was being able to run the
> wxApp event loop in a separate thread from Emma. Because of this I could
> not call Lua functions that had been connected because they would run in
> the wrong thread. So I came up with a native callback mechanism. This
> basically used the same Connect() model that wxLua uses, but it uses a
> form that registers a C++ callback rather than a Lua function. wxLua
> would call this callback and my native function would send a message to
> the thread running the Lua interpreter to execute the Lua function.
>
> All this inter-thread comm is done in my app, so all wxLua needs is the
> ability to register native callbacks. I discussed adding this to this
> latest incarnation of wxLua with John. It does not look like that was
> ever added.

I think, if I understand correctly, that the same can be implemented
by just making the wxLuaCallback::CallFunction virtual
(modules/wxlua/include/wxlcallb.h). In your program you will have your
own ConnectEvent function, similar to the one you added in
wxLuaInternals.cpp, but instead you'll create a new wxMyLuaCallback
class with CallFunction overridden to do as you please. Does this
sound like it'll work? There's nothing wrong with your method, but I
think just making wxLuaCallback::CallFunction virtual is a little
cleaner and simpler, but maybe it's not workable for you?

> John, any resolution on adding this? If there is still interest, I will
> switch over to your version of wxLua, make my changes there and make
> them available to you. My goal, of course, is to use a stock version of
> wxLua!

I hope I can help and we can get this to work. I'll have some time
tonight to fix the linking problem that Klaas was having.

Regards,
    John Labenski