Touch Zoom with two fingers don't work on Touch screen (but it works on Touch Pad) #4390

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opened 2026-01-30 23:45:48 +00:00 by claunia · 2 comments
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Originally created by @DrPepperBianco on GitHub (Oct 10, 2019).

Description of the new feature/enhancement

When I use two finger to zoom in or out (actually making text bigger or smaller), it works on my touch pad. But it actually don't work on my touch screen.

I think the experience would be much smoother if it worked the same on the touch pad and the touch screen.

What I also get is, if I scroll with finger on the touch screen it works. If I try to scroll with two fingers it flickers, as if the program doesn't realize I using two fingers and tries to read both inputs.

So the case with multiple fingers should probably be detected and handled specifically.

Proposed technical implementation details (optional)

If I use two fingers on the touch screen and move them together or away from each other the font size should decrease or increase respectively, exactly as it is now if I do that on the touch screen.

Originally created by @DrPepperBianco on GitHub (Oct 10, 2019). <!-- 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 I ACKNOWLEDGE THE FOLLOWING BEFORE PROCEEDING: 1. If I delete this entire template and go my own path, the core team may close my issue without further explanation or engagement. 2. If I list multiple bugs/concerns in this one issue, the core team may close my issue without further explanation or engagement. 3. If I write an issue that has many duplicates, the core team may close my issue without further explanation or engagement (and without necessarily spending time to find the exact duplicate ID number). 4. If I leave the title incomplete when filing the issue, the core team may close my issue without further explanation or engagement. 5. If I file something completely blank in the body, the core team may close my issue without further explanation or engagement. All good? Then proceed! --> # Description of the new feature/enhancement When I use two finger to zoom in or out (actually making text bigger or smaller), it works on my touch pad. But it actually don't work on my touch screen. I think the experience would be much smoother if it worked the same on the touch pad and the touch screen. What I also get is, if I scroll with finger on the touch screen it works. If I try to scroll with two fingers it flickers, as if the program doesn't realize I using two fingers and tries to read both inputs. So the case with multiple fingers should probably be detected and handled specifically. <!-- A clear and concise description of what the problem is that the new feature would solve. Describe why and how a user would use this new functionality (if applicable). --> # Proposed technical implementation details (optional) If I use two fingers on the touch screen and move them together or away from each other the font size should decrease or increase respectively, exactly as it is now if I do that on the touch screen. <!-- A clear and concise description of what you want to happen. -->
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@carlos-zamora commented on GitHub (Oct 12, 2019):

This should be a fairly easy thing to implement. Adding the Help-Wanted tag if anybody wants to hop on. The work should be done in the TermControl.cpp file. There's a few pointer-related functions (i.e.: pointerMoved, pointerClick, etc.) that already handle the mouse movements and a few touch events. Now just a matter of expanding on the touch events.

@carlos-zamora commented on GitHub (Oct 12, 2019): This should be a fairly easy thing to implement. Adding the Help-Wanted tag if anybody wants to hop on. The work should be done in the TermControl.cpp file. There's a few pointer-related functions (i.e.: pointerMoved, pointerClick, etc.) that already handle the mouse movements and a few touch events. Now just a matter of expanding on the touch events.
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@carlos-zamora commented on GitHub (May 12, 2020):

https://docs.microsoft.com/en-us/windows/uwp/design/input/touch-interactions

Just linking this here for when I (or somebody else) comes by 😊

@carlos-zamora commented on GitHub (May 12, 2020): https://docs.microsoft.com/en-us/windows/uwp/design/input/touch-interactions Just linking this here for when I (or somebody else) comes by 😊
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Reference: starred/terminal#4390