User's Manual

Chapter 3: Getting To Know Your 7545
The Keys
Psion Teklogix 7545 Hand-Held Computer User Manual 45
3.3.1.2 Locking Modifier Keys
When a modifier key is pressed twice, it is ‘locked’ on. A ‘locked’ modifier key is displayed
in uppercase letters in the taskbar. For example, pressing the [BLUE] key twice locks it
on—it is displayed as BLUE KEY in the taskbar at the bottom of the computer screen.
The locked modifier key will remain active until it is pressed a third time to unlock or turn it
off. Once a modifier key is unlocked, the uppercase representation at the bottom of the
screen is no longer displayed.
3.3.2 The Keys
The [SHIFT] Key
The [SHIFT] key is used to display uppercase alpha characters and provide access to the
symbols above the numeric keys.
The Arrow Keys
The Arrow keys move the cursor around the screen in the direction of the arrow: up, down,
left and right. The cursor is the flashing box or underline character that indicates where the
next character you type will appear.
The [BKSP/DEL] Key
The [BKSP] key (sometimes referred to as destructive backspace) moves the cursor one
character to the left, erasing the incorrectly entered key stroke.
The [DEL] key ([BLUE] [BKSP]) erases the character at the cursor position.
The [CTRL] And [ALT] Key
The [CTRL] and [ALT] keys modify the function of the next key pressed and are application
dependent.
The [TAB] Key
Typically, the [TAB] key moves the cursor to the next field to the right or downward.
Note: The locking function of the [ORANGE] and [BLUE] keys can be disabled so that
pressing either of these keys once will lock the keys ‘on’.
If you disable the ‘One Shot’ function of either of these keys, pressing the [BLUE]
and/or [ORANGE] key once will lock the key ‘on’. Pressing the same key a second
time will unlock or turn it ‘off’. Refer to “Keyboard One Shot Modes” on page 105
for details.
Preliminary Draft 3