Mac notebooks: Two finger trackpad scrolling
Two finger trackpad scrolling is a new feature introduced in the PowerBook G4 (12-inch, 1.5GHz), PowerBook G4 (15-inch, 1.67/1.5GHz), and PowerBook G4 (17-inch, 1.67GHz) computers. With trackpad scrolling you have the option of scrolling vertically and horizontally in a window that has scroll bars by moving two adjoining fingers on the trackpad. The trackpad scrolling feature is on by default in the Mac notebooks that support it.
Using two finger trackpad scrolling
To scroll vertically, move two adjoining fingers up or down the trackpad. To scroll horizontally, move two adjoining fingers left or right on the trackpad.
Note: To move the pointer instead of scrolling, use only one finger on the trackpad; the pointer won't move if you use two or more fingers on the trackpad.
Customizing two finger trackpad scrolling
Depending on your Mac notebook, you will have different options for customizing two finger trackpad scrolling. For instance, Mac notebooks without Multi-Touch trackpads have the option to disable horizontal scrolling or to disable scrolling completely whereas Multi-Touch trackpads can only adjust scrolling speed.
Note: If you have a Mac notebook with a glass Multi-Touch trackpad or a Mac notebook using Mac OS X v10.5.6 or later, you can customize trackpad scrolling settings in the Trackpad System Preferences Pane. If you are using an Apple portable with a non-glass trackpad or non Multi-Touch trackpad with Mac OS X v10.5.5 or earlier, you can customize your settings in the Keyboard & Mouse System Preferences Pane, in the Trackpad tab.
Mac notebooks without a Multi-Touch trackpad:
- To disable horizontal scrolling, deselect the "Allow horizontal scrolling" checkbox.
- To disable trackpad scrolling altogether, deselect the "Use two fingers to scroll" checkbox.
- To adjust scrolling speed move the arrow on the "Scrolling Speed" slider.
Mac notebooks with a Multi-Touch trackpad and Three Fingers gesture support:
Mac notebooks with a Multi-Touch trackpad and Four Fingers gesture support:
To adjust scrolling speed on a Multi-Touch trackpad, move the arrow on the "Scrolling Speed" slider.