Acorn Computers Limited A4000 Welcome Manual page 26

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The mouse buttons
The mouse buttons
The mouse has three buttons, known as Select, Menu and Adjust:
You use the Select button to select and move icons displayed on the screen, or to
choose from menus.
You use the Menu button to make a menu appear. Menus are described in Menus and
dialogue boxes on page 25.
The Adjust button does a variety of things, mostly useful variants of what the Select
button does. Keeping a menu on the screen on page 27 includes one instance, and
the RISC OS 3 User and Applications Guide describes many more.
Mouse techniques
The following mouse techniques are all you need to start using your computer:
clicking – pressing the mouse button just once and then releasing it immediately.
double-clicking – pressing and releasing twice in quick succession. This is used to
load an application, for example.
dragging – moving an object from one place to another whilst holding down the
Select (or Adjust) button.
Clicking and dragging techniques are described on the following pages. You can try
out the examples in italic text.

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