A scrollbar, or slider, is a graphical widget in a GUI with which continuous text, pictures or anything else can be scrolled including time in video applications, i.e., viewed even if it does not fit into the space in a computer display, window, or viewport. A widget (or control) is an interface component that a computer user interacts with, such as a window or a text box. ... GUI can refer to the following: GUI is short for graphical user interface, a term used to describe a type of interface in computing. ... This article needs cleanup. ... A computer display monitor, usually called simply a monitor when the meaning is clear from the context, is a piece of electrical equipment which displays viewable images generated by a computer without producing a permanent record. ... An example of a graphical user interface in Windows XP, with the My Music window displayed In computing, a window is a visual area, usually rectangular in shape, containing some kind of user interface, displaying the output of and allowing input for one of a number of simultaneously running computer...

Usually designed as a long rectangular area on one or two sides of the viewing area, containing a bar (or thumb) that can be dragged along a trough to move the body of the document as well as two arrows on either end for precise adjustments. The "thumb" has different names in different environments: on the Macintosh it is called a "thumb" on the Java platform it is called "thumb" or "knob"; Microsoft's .NET documentation refers to it as "scroll box" or "scroll thumb"; in other environments it is called "elevator", "puck" or "wiper". Additional functions may be found, such as zooming in/out or various application-specific tools. The thumb can also sometimes be adjusted by dragging its ends. In this case it would adjust both the position and the zooming of the document, where the size of the thumb represents the degree of zooming applied. A thumb that completely fills the trough, or "track" represents viewing the entire document, at which point the scrollbar may temporarily become hidden. A spiral mouse gesture in the computer game Black and White. ... Mac OS X version 10. ... Java is an object-oriented programming language developed by Sun Microsystems in the early 1990s. ... Software, consisting of programs, enables a computer to perform specific tasks, as opposed to the physical components of the system (hardware). ...

Scrollbars can be seen as a computer representation of a thumb, with which you thumb through pages of documents. In human anatomy, the thumb is the first digit on a hand. ...

Manipulation

While dragging the thumb is historically the traditional way of manipulating the widget, a scroll wheel may also be used. In addition, the arrow buttons may be clicked to scroll a small amount, or the trough above or below the thumb for a larger amount. Sometimes, both arrow buttons appear next to each other for quick, precise manipulation without having to drag the thumb or move the mouse great distances to the other arrow; one of them may also be duplicated so as to show at both ends of the bar, providing familiarity for those used to both separate and adjacent buttons. Operating a mechanical 1: Pulling the mouse turns the ball. ...

Another system for manipulating them is to look at which mouse button was pressed. For instance, a left-click might cause it to scroll down, while a right click would scroll up, and the middle button could be used to place the thumb precisely. This form requires less fine motor skills, although it requires a multi-button mouse, and possibly a greater degree of GUI literacy. A motor skill is a skill required for proper usage of skeletal muscles. ...

Customization

The ability and specific methods needed to customize the look and function of scrollbars can vary significantly based on which operating system or software application you are attempting to customize. The most commonly used method of altering the look-and-feel of the scrollbar in Web pages is to use a set of non-standardized CSS directives which at the time of this writing were only supported by Microsoft Internet Explorer versions 5.x or higher. An operating system (OS) is a set of computer programs that manage the hardware and software resources of a computer. ... This article or section does not cite its references or sources. ... A screenshot of a web page. ... In computing, Cascading Style Sheets (CSS) is a stylesheet language used to describe the presentation of a document written in a markup language. ... It has been suggested that Internet Explorer 7 be merged into this article or section. ...

External links

• An Interactive IE Scrollbar Customization Tool

See also: Scroll Lock Scroll lock is a key (with an associated status light) on most modern computer keyboards. ...