User's Manual

CHAPTER THREE - PL3000 BASICS

Task Manager

Windows CE Shell facility ‘Task Manager’ is a way

to handle which application has the screen resource of

the PL3000 in use. In other words, if you are running at

the same time more than one program, only one can

interact with you on the screen, and in practice, to

receive key events (that is, to have a keypad focus), if

you press keys. Through the task manager you choose

the program from among the programs running on your

PL3000 to put on view its displayable user interface on

the screen. Using the task manager you can also close

the program of your choice.

To invoke the task manager: hold down the ‘alt’ key while pressing the ‘tab’

key; the task manager dialog pops up on the screen.

If you just want to hide the task manager dialog, press the ‘esc’ key

To bring the program of your choice to the screen:

1. Select the program using the arrow keys

2. Press the ‘ok’ key; the task manager dialog disappears and the program

window will be displayed on the screen.

Note! The window having the keypad focus can be also changed by

holding down the ‘alt’ key while pressing the ‘esc’ key to switch between

running programs. However, there can be programs such as Internet

Explorer that put a stop to this functioning of the alt-esc key combination.

KEYPAD

The PL3000’s keypad can be regarded as four functional areas: the control

key area, the keys controlling the modes of alphanumeric keys, the alphanumeric

keypad, and on the bottom of the keypad there are some auxiliary keys and a

bower button.

All the keys, including the power button, have backlights. By default the

backlights of the keys are turned off. Only mode selectors of the alphanumeric keys

use light indication, when the user operates the device. From the user’s viewpoint it

is possible to set all the keys on lighting in full operational state. However, from the

programmer’s point of view every key has a backlight of its own that can be turned

on and off separately.

Be aware that all the keys with the exception of the power button are

programmable, including the properties they have. (In a sense, the power button is