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Texas Instruments TI-89 Developer's Guide

Texas Instruments TI-89
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Appendix A: System Routines — Menus
907
TI
-
89 / TI
-
92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
QMenuTopSelect
Declaration:
WORD
QMenuTopSelect
(HANDLE
MenuHandle
)
Category(ies):
Menus
Description:
Return the currently selected top-level menu item (only one may be
selected at a time) or
L
1 if none is selected.
Inputs:
MenuHandle
Handle returned from
MenuBegin
.
Outputs:
Top-level menu index (0 . . . number of top-level items – 1).
Assumptions:
MenuHandle
refers to a menu-draw handle returned from
MenuBegin
.
MenuTopSelect
is normally used with redefinable menus.
Side Effects:
None
Availability:
On AMS 2.00 and higher.
TI
-
89 / TI
-
92 Plus
Differences:
None
See Also: MenuBegin, MenuTopSelect
Example:
See
MenuTopRedef
for an example of using
MenuTopSelect
. Note that
QMenuTopSelect
just returns the value set by
MenuTopSelect
.

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Texas Instruments TI-89 Specifications

General IconGeneral
Display size (HxV)100 x 160 mm
Memory type639K FLASH ROM, 188K bytes RAM
Compatible operating systemsOperating System 2.09
Battery typeAAA

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