The toolbar, also called a bar or standard toolbar (originally known as ribbon) is a graphical control element on which on-screen icons can be used. A toolbar often allows for quick access to functions that are commonly used in the program. Some examples of functions a toolbar might have are open file, save, and change font. Toolbars are usually distinguished from palettes by their integration into the edges of the screen or of other windows. This can result in wasted space if multiple underpopulated bars are stacked atop each other or interface inefficiency if overloaded bars are placed on small windows.
There are several user interface elements derived from toolbars:
A search box is not in itself a toolbar but one may appear within a toolbar, as is the case with the address bar.
Toolbars may appear in various software. Some internet browsers allow the user to customize its toolbars' contents or location. Plug-ins can be used to add new toolbars to some programs.
Sometimes trojan horse viruses will take the form of a toolbar.
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[...] a ribbon that contains labeled icons (64×64 bit maps) representing tasks and tools that has been instantiated by the user. Each tasktool is represented by a different icon.