Re: Hacking a Win32 UI without knowing jack

On Thu, 22 Apr 2004 01:13:33 -0500
  [email protected] wrote:
>Once my mainloop is running, no write messages go 
>through. How is "write"
>called by Lyntin? Is there some special magic I need to 
>be doing to get
>writes into my GUI after runui is called?

Writing to user interface is performed by the engine 
spamming to "to_user_hook" hook. Usually it is hooked to 
"write" method of some UI module (you can see it in 
textui, for example), but, of course, you are free to call 
it as you like. To be short, your UI module shall catch 
the "to_user_hook".

Furthermore, this hook spamming belongs to another thread, 
and it is not the same thread which the "runui" method is 
running. So, you must catch the messages in your hook 
method and either organize its delivering into the "ui" 
thread (via some kind of private queue structure or 
whatever else), or make redrawing of messages right there, 
if the graphical toolkit is truely reentrant (consult the 
toolkit documentation whether it is allowed).

In the latter case make sure the redrawing is really fast, 
because if it is not, then it will slow down all the 
engine work, including action triggering etc.

--
Eugene
---
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