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Balloon help was a help system introduced by Apple Computer in their 1991 release of System 7.0. The name referred to the way the help text was displayed, in "balloons", like those containing the words in a comic strip. The name has since been used by many to refer to any sort of pop-up help text.[citation needed]
During the leadup to System 7, Apple studied the problem of getting help in depth. They identified a number of common questions, such as where am I? and how do I get to...?. In the context of computer use they identified two main types of questions users asked: what is this thing? and how do I accomplish...?. Existing help systems typically didn't provide useful information on either of these topics, and were often nothing more than the paper manual copied into an electronic form.[citation needed]
One of the particularly thorny problems was the what is this thing? question. In an interface that often included non-standard widgets or buttons labeled with an indecipherable icon, many functions required a trip to the manual to decipher. Users generally refused to do this, and ended up not using the full power of their applications since many of their functions were "hidden" by an unknown UI. It was this problem that Apple decided to attack, and after extensive testing, settled on Balloon Help as the solution.
Apple's solution for how do I accomplish...? was Apple Guide, which would be added to System 7.5 in 1994.
Balloon help was activated by choosing Show Balloon Help from System 7's new Help menu (labelled with a Balloon Help icon in System 7, the Apple Guide icon in System 7.5, and the word Help in Mac OS 8). While balloon help was on, moving the mouse over an item would display help for that item. Balloon help was deactivated by choosing Hide Balloon Help from the same menu.
The underlying system was based on a set of resources included in application software, holding text that would appear in the balloons. The balloon graphics were supplied by the operating system itself. As the balloons were implemented entirely as resources, they could be added easily using standard applications like ResEdit. Apple also supplied a custom editor application to simplify the process, which displayed a list of only those objects that required balloons, and edited the text inside a balloon shape to give the developer some idea of how the resulting balloon would be displayed.
The engine would automatically display the proper balloon based on the mouse location and the item's current state. It also positioned the balloon using an algorithm designed to keep it from covering the objects being examined. Help text for most common UI elements, such as the Close Box on a window, was built into the system. Developers could also include balloons for their application icon itself, allowing users to identify an unknown application in the Finder without launching it.
Developers were encouraged to not just name an object, but to describe its function and explain its state. For instance, for the Copy menu command Apple suggested the detailed "Copies the selected text onto the clipboard", as well as a second version that added "Not available now because there is no selection". This feature explained to users why a particular menu item was disabled.
Microsoft subsequently introduced the similar "tooltips" in Windows 95, which serve a similar purpose, but are generally smaller, and appear without being specifically turned on. A similar system called "help tags" was used in OpenStep and retained for Mac OS X.
The balloon help concept has since been adopted as an optional alternative to tooltips in later versions of Microsoft Windows, such as Windows XP, which uses balloons to highlight and explain aspects of various programs or operating system features (Balloons in msdn). Balloon help is also highly visible in the Squeak Smalltalk environment, in the Enlightenment window manager, and in the AmigaOS's MUI.
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