Metrologic Optimus S Programming Manual page 27

Example _KeepAlive__();
Description Whenever this routine is called, it will reset the counter governed by the global
variable AUTO_OFF, so that the user's application program will keep on
running without suffering from being automatically shut down by the system.
Return None
SetPwrKey
Purpose To set the POWER key as the wakeup event.
Syntax void SetPwrKey (int mode);
int mode;
Example SetPwrKey (1);
Description The parameter mode is set to one of the following values:
POWER_KEY_DISABLE (0)
POWER_KEY_ENABLE (1)
Return None
shut_down
To shut down the system.
Purpose
void shut_down (void);
Syntax
Example shut_down();
Description This routine shuts down the system. Upon powering on, the system will always
restart.
Return None
SysSuspend
Purpose To shut down the system.
Syntax void SysSuspend (void);
Example SysSuspend();
Description This routine shuts down the system. Upon powering on, the system may
resume or restart itself, depending on the system setting.
Return None
Chapter 3 Terminal Specific Function Library
/* enable or disable the POWER key */
/* enable the POWER key for waking up the terminal*/
The POWER key is disabled.
The POWER key is enabled.
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Optimus S