Re: [fltk.coredev] Gesture progress for 1.4?

GitHub FLTK Project   FLTK News RSS Feed  
  FLTK Apps      FLTK Library      Forums      Links     Login 
 All Forums  |  Back to fltk.coredev  ]
 
Previous Message ]New Message | Reply ]Next Message ]

Re: Gesture progress for 1.4? Ian MacArthur 14:41 Oct 10 top right image
 
On 10 Oct 2021, at 19:07, Albrecht Schlosser wrote:
> 

>> I don't know yet how Linux/Unix provides multi-touch events to the user program, i.e. FLTK.
> 
> This is under investigation but links to documentation (or even code snippets) would be appreciated.
> 

This is not something I know about - I did (briefly) look at how X11 was proposing to handle multi-touch (which was the precursor to gesture events, in effect) but that was a long time ago and I never got anywhere useful.

Also, just to cheer everybody up, my understanding (so may well be wrong!) is that X11 and Wayland take fundamentally different approaches to this so we probably need to handle both at some point. 
(My understanding, such as it is, is that X11 strives to maintain backwards compatibility with legacy pointer events, but Wayland has gone all-in on a new touch event interface.)

For X11, there’s an Xinput Extension for it, which I have not read... um, might be: https://www.x.org/releases/X11R7.7/doc/inputproto/XI2proto.txt or something of that ilk.

No idea what Wayland does.


-- 
You received this message because you are subscribed to the Google Groups "fltk.coredev" group.
To unsubscribe from this group and stop receiving emails from it, send an email to fltkcoredev+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/fltkcoredev/63300AF9-10DD-4DE4-B598-B049CCBB3F70%40gmail.com.
Direct Link to Message ]
 
bottom left image   bottom right image
Previous Message ]New Message | Reply ]Next Message ]
 
 

Comments are owned by the poster. All other content is copyright 1998-2021 by Bill Spitzak and others. This project is hosted by The FLTK Team. Please report site problems to 'erco@seriss.com'.