eXtensions - Tuesday 17 October 2017
System Preferences in macOS High Sierra: Dock
By Graham K. Rogers
When the cursor is run over an app in the Dock a small panel shows the name of the application. Clicking on the app icon launches or displays (if already launched) the app. If the user clicks and holds on an app icon, a menu appears. The contents will depend on the app (and type of app) and if it is already open. An Options section has several choices, including Keep in Dock (or Remove from Dock), Open at Login, Show in Finder. A second part of the menu marked, Assign To, shows All Desktops, This Desktop, None.
The Dock can also be used for documents and other files, so clicking on these when in the Dock will display them in the correct application.
A divider line is located between the apps and folders/documents in the Dock. As the cursor nears the spot between the two parts, a double vertical arrow will appear: clicking on the line while pressing the Control key brings up a menu. Both the Dock and the menu appear different if the user has selected "Use dark menu bar and Dock" in the General preferences panel.
Three radio buttons are provided in the middle of the panel to position the Dock on the screen. The default is Bottom. Also available are Left or Right. Users who access tools at the bottom of a screen in an application (e.g. Final Cut Pro) may prefer the Dock to be positioned to one side.
A button below these three selectors is available to decide the effect used when a Window is minimized. The default is Genie effect, which makes a file appear to shrink as if it were going into a bottle-neck. The reverse happens when it is clicked in the Dock and becomes large again. The Scale effect uses less processing power and as the panel becomes smaller, the width and height are in proportion. Both effects may be slowed by pressing the Shift key at the same time.
The bottom of the panel has the same 5 checkboxes it has had for the last few versions of OS X and macOS. The last one had a small change to the text in Sierra:
Graham K. Rogers teaches at the Faculty of Engineering, Mahidol University in Thailand. He wrote in the Bangkok Post, Database supplement on IT subjects. For the last seven years of Database he wrote a column on Apple and Macs. After 3 years writing a column in the Life supplement, he is now no longer associated with the Bangkok Post. He can be followed on Twitter (@extensions_th)
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