Texas Instruments TI-89 Developer's Guide

880
Appendix A: System Routines — Menus
TI
-
89 / TI
-
92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
MenuCheck
Declaration:
short
MenuCheck
(HANDLE
MenuHandle
, SINT
MenuId
, short
Cmd
)
Category(ies):
Menus
Description:
Set, clear, flip, or return the status of a checkmark for a menu item.
Inputs:
MenuHandle
— Handle returned from
MenuBegin
.
MenuId
— ID of menu item.
Cmd
— For the menu item associated with
MenuId
.
MC_CHECK — Display a check-mark next to the
menu item.
MC_UNCHECK — Remove check-mark.
MC_STATUS — Return status of check-mark
(zero: not checked, nonzero:
checked).
MC_FLIP — Invert the status of the
checkmark.
Outputs:
For MC_STATUS return the current status of the checkmark. For the other
Cmd
s return TRUE if
MenuId
found, FALSE if not.
Assumptions:
MenuHandle
was created by
MenuBegin
.
Side Effects:
None
Availability:
All versions of the TI
-
89 / TI
-
92 Plus.
TI
-
89 / TI
-
92 Plus
Differences:
None
See Also: MenuBegin
Example:
See
MenuTopStat
.

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