Re: [MiNT] [AES DOC] graf_xhandle

[Olivier Landemarre <olivier.landemarre@utbm.fr>]

Arnaud BERCEGEAY wrote:

> hello,
>
> On Fri, 01 Oct 2004 14:00:48 +0200, Olivier Landemarre  
> <olivier.landemarre@utbm.fr> wrote:
>
> > Arnaud BERCEGEAY wrote:
> >
> > > Hello,
> > >
> > > in graf_xhandle(), the parameter device seems to be the device-ID 
> > > of  the  workstation opened by the AES (the value to put in 
> > > work_in[0]  when  invoking v_opnvwk()).
> > >
> > > Can someone confirm that ?
> >
> >
> > Never heard of this function, wich AES?
>
>
> Don't know... that's my question ;)
>
> > > How can we detect if the AES provides this function ?
> > If we call this function if not include GEM return 0, but in TOS 
> > 3.xx  the AES will display a form_alert() function unknown on screen, 
> > I don't  know if it's possible to not have this message.
>
>
> Well, it's the same function as graf_handle (AES 77). The only diff 
> is  that graf_xhandle set aes_control[2]=6 (instead of 5 for 
> graf_handle)  because graf_xhandle() returns "device-id" in intout[5].
>
> If the AES doesn't support graf_xhandle(), i think that intout[5] will 
> not  be changed, and as consequence may contain any value....
So just in bind of graf_xhandle() intout[5]=0; the AES have not to 
change this, if this feature is not support so intout[5] will stay at 0.

> best regards,
> Arnaud.
Olivier