multitouch

[Daniel Stone]

Hi,

On Mon, Mar 01, 2010 at 04:36:05PM +0100, Bradley T. Hughes wrote:
> On 03/01/2010 04:26 PM, ext Matthew Ayres wrote:
>> To me this sounds almost to be saying that touch events should be
>> handled  no differently than mouse events, but that doesn't seem right. A mouse is
>> always present, it always has a position. A touch-sensitive slave/physical
>> device may always be attached, but unless something is touching it, isn't it
>> essentially absent?
>
> Yes, essentially. This could be where the sub-device idea comes in. The  
> physical device is there, but here are no active points generating 
> events. As it stands today, the last touch leaves the X pointer in the 
> location of the last touch, and that can generate Enter/Leave events 
> should the window structure under the pointer changes.

Er, Xi has (had?) ProximityIn/ProximityOut events which told you exactly
this ...

Cheers,
Daniel
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