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Chapter 4: User Interface Overview
TI
-
89 / TI
-
92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
4.5. The Status Line
An app can write messages to the status bar; but when modifier keys (
2
,
¤
,
¥
,
j
, and
‚
) are pressed or the battery level changes, the status bar is
cleared of any messages and the modifier status is displayed. The status bar is
also used to show things like the current directory, radian/degree mode, battery
status, and other calculator information as shown in Figure 4.9.
Figure 4.9: Status Line
The following routines allow access to the status line:
ST_angle
— Change the RAD/DEG indicator in the status line.
ST_busy
— Turn on/off the BUSY indicator.
ST_eraseHelp
— Clear the help status and restore the indicators.
ST_folder
— Change current folder in the status line.
ST_helpMsg
— Temporarily display a help message in the status line.
ST_readOnly
— Turn on/off the lock symbol in the status line.
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