Re: How to capture mouse movements independend of a Window?

[tomas tuxteam de]

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On Sun, Jan 07, 2007 at 10:56:48PM +0100, Andreas Stricker wrote:
> tomas tuxteam de wrote:

[fourth argument]

> I should have RTFM more attentive [...]

I sometimes turn screaming to the list too before having found the
relevant bit in the FM. Luckily there are quite friendly folks around
here.

> > > Maybe there is a function to place the cursor in the middle of the window?
> >
> > You might move the pointer with gdk_display_warp_pointer() after each
> > received movement event.
>
> Yes, that's the function I need. (but move it each time is not a good idea)

[re-center dursor when within 100px of root window]

Sounds quite workable. I was wondering myself about some weird form of
optical feedback: not hide the cursor completely, but show it as a small
dot or ring. Then re-center it based on a falling exponential function
or similar (i.e. add the movement of the cursor and substract on regular
time intervals alpha*(z - z0), when z are the mouse coordinates and z0
is the chosen center. Alpha will be a suitable constant <1 (e.g. 1/2).
So if you don't move, you'll see the pointer "falling" towards the
center.

But I'll shut up now. Holidays are over, after all...

Regards
- -- tomÃs
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