Texas Instruments TI-89 Developer's Guide

Appendix A: System Routines — Menus
885
TI
-
89 / TI
-
92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
MenuKey
Declaration:
WORD
MenuKey
(HANDLE
MenuHandle
, WORD
Key
)
Category(ies):
Menus
Description:
Handle a
Key
for a menu returning the menu item selected.
Inputs:
MenuHandle
— Menu-draw handle returned by
MenuBegin
.
Key
— KB_F1 . . . KB_F8
Outputs:
0 — Nothing selected (
N
pressed) or not enough
memory to display menu.
1 . . . 0xFFF — Menu ID of item selected.
M_NOTMENUKEY —
Key
is not in range for this menu.
Assumptions:
None
Side Effects:
May cause heap compression.
Availability:
All versions of the TI
-
89 / TI
-
92 Plus.
TI
-
89 / TI
-
92 Plus
Differences:
None
See Also: MenuBegin
Example:
See
MenuBegin
.

Texas Instruments TI-89 Specifications

General

Display size (HxV)	100 x 160 mm
Memory type	639K FLASH ROM, 188K bytes RAM
Compatible operating systems	Operating System 2.09
Battery type	AAA