Also, there is a bit of difference depending on whether an application can have more than one window open. If an application can have several windows then clicking the red button closes that window, clicking on the still running application in the Dock opens a new window. If the application can only have one window (as is the case with System Preferences) then clicking the close button also quits the application. The close button never "hides" the application, it always closes the window and, for applications that can only have one window, it also quits the application. For all other applications it closes that window, "quitting" whatever you were doing in that window. If you have two Safari windows open and click the red button, that window closes, but the other window will remain and Safari will still be the frontmost application. To hide an application, without closing the window you are working in, you can right click or click and hold on the application's Dock icon and select Hide from the popup list, or hold the option key and click in another application.
Francine
Francine
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