Texas Instruments TI-89 Developer's Manual page 123

Chapter 9: Application Control Flow
0x708
0x709
0x70A
0x70B
0x70C
0x70D
0x70E
0x70F
0x710
TI-89 / TI-92 Plus Developer Guide
CM_RESTART
Notifies the current application that the user has chosen to start
the same application from the APPS menu. Applications may
choose to ignore this command and there is no default handling.
Reserved
Reserved
CM_ON
Sent to each application when the calculator is turned on after
being turned off with ( [ 2ND] [OFF]). This command is not sent if
the calculator is turned on after automatic power down.
CM_INSTALL
Sent to an application just after it has been installed in the
calculator. This message is sent to applications which are already
in Flash memory when batteries are inserted or when the
calculator is reset. This message is also sent to an application just
after it has been downloaded into Flash memory through the link
port.
CM_UNINSTALL
Sent to an application just before it is deleted from Flash memory.
CM_PACK
Informs an application that it is about to be moved to another
address in Flash memory. The OS sends this message before it
begins garbage collection after deleting another Flash application.
The application must save any state information it needs.
CM_UNPACK
Sent to an application after Flash memory garbage collection is
complete. The application uses this opportunity to restore state
information it saved when it received the CM_PACK message.
CM_KEY_PRESS
Sent when a key is pressed on the calculator keyboard. This
message tells the application which key was pressed. Keypresses
include ASCII characters (0x20 – 0x7E), extended ASCII
characters (0x80 – 0xFF), control characters and special symbols
(0x00 – 0x1F, and 0x7F), and extended key codes (>= 0x100)
such as function keys and the cursor arrow keys. The application
usually forwards extended key codes to the default event handler
for further processing.
Not for Distribution
81
Beta Version January 26, 2001