DINPUT: Enforce single mouse acquire

[Dmitry Timoshkov]

On Wed, 2006-01-25 at 19:11 -0500, Alex Villací­s Lasso wrote:

> > But if you disallow nested acquires the check for This being NULL in
> > the hook proc should not be needed, right?
> >
> >   
> Good point. But it doesn't hurt either. This might be changed into an 
> assertion, since that is what the hook expects. What do you think?

Yes, I think an assert would be more appropriate.

-- 
Dmitry.