Re: Can Tk 9.0 handle touch events of a touch display?

Robert,
I have authored the TIP in 2020 and the described knowledge there has not changed.
As it is clear that this in an important feature, there was never any movement here.
Eventually, undrowish by Christian Werner has some support on Linux.
On Windows, we only have the button press emulation, that's all.
And the branch by Peter Sputh did not get any love since 2022.
Aparently, Peters work also has some Mac aspects.
Any initiative appreciated - we need that !
Take care,
Harald
Am 21.12.2024 um 13:57 schrieb Robert Csok:

Hello everyone,
 While reading through the “Highlights of Tk 9.0” I noticed the point “Platform Features and Conventions: many improvements, including two- finger gesture support where available”. I was initially pleased because I thought that Tcl 9 could react to touch events of a touch display. This function would make it easier to operate our cadastre application on devices with a touch-capable display (“Pinch To Zoom” etc.).
 However, I had to realize that this message probably refers more to the possibility of scrolling with two fingers on a touchpad (new event type “TouchpadScroll”). I also came across TIP 570, which describes the desired feature:
 https://core.tcl-lang.org/tips/doc/trunk/tip/570.md
 The proposal has been in a draft state since 2020.
 Can anyone give a hint on a possibility, trick or workaround to react to touch events of a touch display in a Tk application under Linux?
 Best regards
 Robert