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302 Chapter 17: Programming
17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 302 of 40
Command Description
Clr
Z
O
Clears the Program I/O screen.
Disp
Displays an expression or string on the Program I/O
screen.
Disp
can also display the current contents of
the Program I/O screen without displaying
additional information.
DispG
Displays the current contents of the Graph screen.
DispHome
Displays the current contents of the Home screen.
DispTbl
Displays the current contents of the Table screen.
Output
Displays an expression or string starting at specified
coordinates on the Program I/O screen.
Format
Formats the way in which numeric information is
displayed.
Pause
Suspends program execution until the user presses
¸
. Optionally, you can display an expression
during the pause. A pause lets users read your
output and decide when they are ready to continue.
Text
Displays a dialog box that contains a specified
character string.
Command Description
Dialog...
EndDlog
Defines a program block (consisting of
Title
,
Request
, etc., commands) that displays a dialog box.
Toolbar...
EndTbar
Defines a program block (consisting of
Title
,
Item
,
etc., commands) that replaces the toolbar menus.
The redefined toolbar is in effect only while the
program is running and only until the user selects an
item. Then the original toolbar is redisplayed.
CustmOn...
CustmOff
Activates or removes a custom toolbar.
Custom...
EndCustm
Defines a program block that displays a custom
toolbar when the user presses
2¾
. That
toolbar remains in effect until the user presses
2¾
again or changes applications.
DropDown
Displays a drop-down menu within a dialog box.
Item
Displays a menu item for a redefined toolbar.
Request
Creates an input box within a dialog box.
Text
Displays a character string within a dialog box.
Title
Displays the title of a dialog box or a menu title
within a toolbar.
Output Commands
Note: In a program, simply
performing a calculation
does not display the result.
You must use an output
command.
Tip: After
Disp
and
Output
,
the program immediately
continues. You may want to
add a
Pause
command.
Graphical User
Interface
Commands
Tip: When you run a
program that sets up a
custom toolbar, that toolbar
is still available even after
the program has stopped.
Note:
Request
and
Text
are stand-alone commands
that can also be used
outside of a dialog box or
toolbar program block.