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Mac OS X has a 'zoom' action which can be used in various views in applications e.g. Photos.app when looking at a photo, zooming an entire Safari page, zooming in an NSScrollView.

This action is easily performed on a trackpad by using the 'pinch' gesture.

I cannot for the life of me, work out how to enable it for the Magic Mouse (when running Mac OS X 10.10 Yosemite).

The closest that I can get is in the 'Zoom' section of the 'Accessibility' pref pane. This allows you to zoom the entire screen which is not the behaviour that I'm looking for.

You used to be able to perform the zoom action using the mouse (see this video at 1:26 - https://youtu.be/UXbwOIsXNL8?t=1m26s )

So - have Apple removed this feature? Or is there a way to enable in-app zooming with the Magic Mouse?

Thanks

  • still there in Mavericks ! – Ruskes Jul 31 '15 at 15:12
  • Is it there in the Mouse pref pane? If so - then you've answered my question... – Diggory Jul 31 '15 at 15:16
  • Yes it is. Be aware that some apps have they internal zooming actions, so the set up is not global. Try it with Preview to test. – Ruskes Jul 31 '15 at 15:28
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So - It appears that they did remove this feature in Yosemite.

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Hold down cmd# while scroling then the magic mouse zooms.

  • I don't know why this was -1 but I follow the cmd+scroll and it zooms the content. – Jepser Bernardino Aug 14 '18 at 14:09
  • This is a different zoom in some programs, and doesn't work in others. E.g. in Vivaldi, Macbook touchpad pinch will smoothly magnify the entire page without causing a change in layout (you can pan over the enlarged page), while zooming with cmd + magic mouse scroll will adjust the page's zoom slider widget, while still constraining the page to the window's size, causing the magnified page content to get cramped in its window. – Jacob C. Jul 1 at 20:35
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If my trackpad wasn't working with gestures, I'd go to Zoom In Or Out is enabled in System Preferences->Trackpad-> Scroll & Zoom. If it is, I'd make sure Pinch With Two Fingers is selected.

Try this, but click on the Mouse pane in System Preferences.

  • Thanks, but there is no zoom gesture listed in the Mouse pref pane. – Diggory Jul 31 '15 at 14:59
  • Try disconnecting the Magic Mouse, then reconnecting it. Also, it might be in Trackpad, I'm not sure. – RedEagle2000 Jul 31 '15 at 15:06
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I have the latest updates and a Magic Mouse and mine works fine, so I guess the answer would be no.

  • You can zoom in and out within an app just using the Magic Mouse (and a modifier key on the keyboard)? i.e. not zooming the whole screen. – Diggory Jul 31 '15 at 15:44
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On Sierra i found lovely hidden options!

Hold down CONTROL button to zoom the entire screen area Hold down OPTION to use a zoom tool eg photoshop

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