Re: MS Windows & Window-Messages

[Fred Kiefer]

Hi Marc,

Marc Brünink wrote:
> Sorry for replying on my own  mail. But:
> Now I've written my own NSApplication class, which does nothing else  
> except spewing out all received NSEvents (overwriting -sendEvent:).
> Nothing. So it looks like  1. either I'm on the wrong track or 2.  
> Window-Messages are not supported. At least not as  I expect it.
>
> On Friday, March 4, 2005, at 05:43 PM, Marc Brünink wrote:
>
> > In MS Windows applications could communicate with each other with the  
> > help of messages. So application A could send a Message  
> > "Freaky-Message" to application B. Actually these messages are 
> > nothing  else then events (As far as I understood this issue). So is 
> > there a  possibility to intercept these events? A quick look over the 
> > reference  of NSResponder just showed a lot of  "Description 
> > forthcoming." :-(
> >
> >
> > MSDN reference:
> > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ 
> > winui/winui/windowsuserinterface/windowing/messagesandmessagequeues/ 
> > aboutmessagesandmessagequeues.asp

Yes, I have to break you the bad news.
GNUstep of course uses Window messages (see WIN32ServerEvent.m). We use 
one common window function to dispatch the events, rather similar to a 
normal windows application. So on the lower level everything you expect 
is there and working, but we only pass on very few, well known of these 
messages to higher levels. Why? Because there are just too many of them 
and because GNUstep is a platform independent framework which tries to 
provide similar behaviour in different environments.
If you need any specific behaviour here, it should be easy to enhance 
your own GNUstep Windows applications with specific window functions.

Cheers
Fred