Computer Network Router User Manual

CHAPTER 3
Controls
3-10 Buttons
the pen on the screen, the button becomes unhighlighted. The button tracks the
pen movement as long as the user keeps pressing the pen. If the user slides the
pressed pen back over the button, it is highlighted again. If the user lifts the pen
while the pointer is not over the button, nothing happens. The display of
electronic ink is turned off while the pen is tracked. A button is not highlighted
if a user initially presses the pen outside the button and slides the pressed pen
over the button.
Button States 3
Text buttons and picture buttons are never dimmed (displayed in gray instead
of black) in a Newton application. If a button is not available, your application
should make it disappear. If you want it to be available, your application
should make it reappear. Figure 3-10 shows how to disable a Newton button.
Figure 3-10 A button disappears when it isn’t available
The Notes
button
disappears
when there
is no cover
page
Don’t dim
(gray out) a
button
when it is
unavailable