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

[Chris M. <ch...@ma...>]

John Labenski wrote:
> 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?

I have no problem with subclassing, as long as I also override, for 
instance, wxCallback::CallFunction() as well. Then I can override it.

-- 
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