Touchpad Interactions in uwp

Ali Noshahi 26

Hi there,
I'm currently working on an Unofficial Instagram client "Winsta" and I recently added a pinch to zoom feature to it but it doesn't work with the touchpad.
Touchpad gestures don't invoke the Manipulation events.
I know I can use a ScrollViewer instead, but in my tests, ScrollViewer failed a lot. Isn't there any way to implement manipulation for the touchpad?
thanks.

Richard Zhang-MSFT 6,936 Reputation points

2020-01-13T09:26:34.03+00:00

Hi, about the touchpad gestures, we are currently communicating with the engineer, and if there something news, I will post here.
Ali Noshahi 26 Reputation points

2020-01-13T09:56:53.463+00:00

thanks really.
Ali Noshahi 26 Reputation points

2020-01-15T10:59:36.91+00:00

Still there's no update for this case?
Richard Zhang-MSFT 6,936 Reputation points

2020-01-15T15:32:02.883+00:00

I'm sorry to keep you waiting. I have discussed this issue with the engineer, and already have begun to investigate this issue. If there is new progress, I will update here
MahStudio 1 41 Reputation points

2020-02-11T20:30:33.947+00:00

Hi there,
Normally, How long does it take? it passed for about one month and no updates.
Richard Zhang-MSFT 6,936 Reputation points

2020-02-17T01:44:43.037+00:00

Hi, sorry for the late reply. We discussed this issue within the group and entered the process as a bug. This issue will be fixed in subsequent system versions.

1 answer

Richard Zhang-MSFT 6,936 Reputation points

2020-02-24T00:32:07.473+00:00

Hello,

Welcome to our Microsoft Q&A platform!

By communicating with the engineer, we reached a conclusion, The touchpad sends Pointer events rather than Manipulation events. You can handle pinch input from the touchpad with the PointerWheelChanged event.

It should be noted that the mouse wheel also triggers this event, so you need to take this into consideration when performing event processing.

Handling PointerWheelChanged event in combination with the ManipulationDelta will allow you to support both pinch from the touchpad and touchscreen.

Thanks.
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Ali Noshahi 26 Reputation points

2020-02-28T14:10:14.477+00:00

Hi there and thanks for your suggestion. However this solution worked, but this solution is not very suitable for my case. Anyhow, thanks.
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Touchpad Interactions in uwp

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