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A Double-click is the act of pressing the left button (right-handed person) or right button (left-handed person) of a Computer mouse twice without moving the mouse. It is different from a single mouse click, as a single mouse click only selects (or highlights) a thing, but a double-click executes an item.
On Icons
Mouse properties in GNOME. Allowing a user to change double-click settings By default on most computer systems, For a person to execute a certain software function, he or she will have to click on the left button in quick succession. An example of this can be a person clicking on a Icon (computing).
On Text
In a web browser, if a person double clicks on text then the word that is selected. In Unix operating systems, it will also copy that piece of text into a clipboard. A person can retrieve the information from the clipboard latter by pressing the scroll button.
Adjusting speed
The speed for a person to double click can be modified by the operating system. Adjusting double-click settings can be done by:
- Windows XP - Start > Control Panel > Mouse?
- In the GNOME Desktop under Unix operating systems - GNOME Menu > Preferences > Mouse
Newbies
A Newbie who lacks computer experience may have never used a mouse or if they did, have not have experience into using a mouse. He or she may have trouble double-clicking in particular and may move the mouse whilst clicking twice without knowing it.
Solutions to this may include:
- Opening the bottom of the mouse, removing the ball and cleaning any debris.
- Clicking on an item and instead of double-click, press the "Enter" key.
- Using keyboard navigation instead of using a mouse.
Preventing mouse from moving
In order to prevent the mouse from moving, whilst double-clicking. A right-handed person may put their thumb to the left side of the mouse and bottom of their hand to the bottom of the mouse. This prevents the mouse from moving to the left or to the bottom whilst clicking. This also works for a left-handed person by reversing the instructions
Patents
In 2004, Microsoft successfully patented the double-click. As a result of this, any U.S. company which uses double-clicking will have to change their product to not use the technology, pay licensing fees to Microsoft or give Microsoft access to intellectual property [1] (http://www.newscientist.com/article.ns?id=dn5072).
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