Texas Instruments TI-89 - Oo_Prevacb

324
Appendix A: System Routines — Apps
TI
-
89 / TI
-
92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
OO_PrevACB
Declaration:
AppID
OO_PrevACB
(AppID
acb
)
Category(ies):
Apps
Description:
Gets the ID of the app before
acb
in the application control block list.
Inputs:
acb
— The ID of an app.
Outputs:
Returns the ID of the app before
acb
or H_NULL if
acb
is the first app in the
application control block list.
Assumptions:
The application control block list begins with all the built-in apps followed by
Flash apps sorted in alphabetical order.
Side Effects:
None
Availability:
On AMS 2.00 and higher.
TI-89 / TI-92 Plus
Differences:
None
See Also: OO_firstACB, OO_NextACB
Example:
AppID appid;
appid = OO_PrevACB(EV_runningApp); /* get ID of app before me */