The
C
key issues a left-Ctrl-click and the
G
key pro-
vides a left-Shift-click.
By default, the Twiddler2 stays in mouse-
mode indefinitely after you release the mouse but-
ton. (This may be adjusted by the user. See
Interactive Programming, below)
This enables you
to position the pointer on the screen, release the
Trackpoint, and then click on an object. With the excep-
tion of two keys (explained below), pressing and releas-
ing any black (thumb or finger) key exits mouse mode
after performing its function.
Here is an example of a common situation: You
are typing a memo and you wish to insert a word 2
lines above. Press the mouse key and move the point-
er where you wish to insert the word. Remove your
thumb from the mouse pointer and it stays in mouse
mode until you press the "A" key (left-click). This sets
the cursor in the selected location and automatically
exits mouse mode back to keyboard mode so you can
start typing immediately.
Exceptions:
The two mouse keys which do not automatically
exit to keyboard mode are the key marked "E" and the
key marked "F". The "E" key, in mouse mode, signals
left-click-and-stay-in-mouse-mode. The usefulness of
this is when clicking repeatedly on the scroll-bar without
touching the mouse. The "F" key, in mouse mode, sig-
nals middle-click-and-stay-in-mouse-mode.
19
THE MOUSE POINTER
The IBM Trackpoint
®
on the Twiddler2 is your
mouse. Press the red button with your thumb to move
the pointer on your screen. When you take your thumb
off the Trackpoint, the onscreen pointer stays where it
is.
Mouse-clicking
When you press the Trackpoint, the Twiddler2
goes into mouse-mode. This means that the front keys
now function as mouse buttons. (Imagine a mouse with
12 buttons.) The
A
key is now the left mouse button
and the
SP
key is the right mouse button. Press and
release the
A
key to left-click on an onscreen object.
Press and release the
SP
key to right-click on an
object. The
E
key is also a left click button, with the dif-
ference that it
stays in mouse mode after it is released.
When you need to double-click with a left
mouse button you can press and release the
E
key
twice, or simply press and release the
B
key. This is a
very convenient way to double-click. (Since the
A
key
exits mouse mode when it is released, you cant use
this to double click.) If you need to click-and-drag, the
Twiddler2 will emulate a left mouse button being held
down when you press and release the
D
key. Press
D
again to "lift" the virtual left mouse button. Similarly, a
right mouse button is virtually "held down" when you
use the
ENT
key and "lifted" by again pressing
ENT
.
18
