[Gambas-user] gb.joystick (and Where is my gbh3?)

[Benoît Minisini]

Le 25/02/2019 à 16:08, Cedron Dawg a écrit :
> I'm sorry.  I just checked my email preferences and could not find a
> way to have it introduce the ">" lines.  I guess I should top post
> from now on.
> 
> [...snip...]
> 
> Well, the in the Joystick model, you have to call the IOCTLs
> yourself.  In the evdev model, it is hidden from you.  So, in order
> to do it in Gambas, the functionality of evdev would in essence have
> to be replicated.

I don't know how evdev works. But it's usually opening a device file, 
ioctl() on it, watching it. Opening and watching is already implemented 
in Gambas. But not ioctl() that are device-specific.

Doing ioctl() in Gambas will anyway be boring, as you have to define all 
the ioctl specific constants by hand.

But maybe a program could be written that would parse the kernel headers 
to generate the constant definitions in Gambas...

> 
> Can I assume you have a strong preference for components to be
> written in Gambas?

No, because it is usually harder with Gambas to deal with C structures 
used by system calls. I told that only for people who are afraid to make 
a component in C following the badly documented Gambas interpreter 
interface.

-- 
Benoît Minisini