Intermec 6200 Reference Guide

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NORAPM.DLL can alert you to various system events either by issuing beeps or

by playing Windows 3.1 WAV" audio files through the system speaker.  If WAV

files are to be played, you must Install the Windows 3.1 multimedia extensions.

See Installing Windows Multimedia Extensions, page 3Ć28.
NORAPM.DLL can issue an audible alert whenever it detects a change in the ac

online status.  For example, this kind of status change occurs when the HHC is

inserted into or removed from the dock or when a wall charger is connected or

disconnected.  NORAPM debounces the status change for approximately two

seconds before issuing the alert.  Note that some systems delay notification of

power changes for up to ten seconds.  Alerts could therefore take up to about 12

seconds to sound on these systems.
If you want to attach multimedia audio alerts (WAV files) to ac status changes,

insert the following entries into the 

[Sounds]

 section of the WIN.INI

configuration file.

Valid values:

WAV filename path

Default values: None
These entries identify the WAV files that play when ac online status changes

occur.  If an entry is blank or missing, the default system beep is substituted.  If

WAV files are to play, Windows 3.1 multimedia extensions must be installed.

As the APM operating system driver, NORAPM.DLL cooperates with the APM

BIOS to save as much power as possible without application or driver

intervention.  This arrangement lets you build a system with reasonable power

consumption without having to create powerĆaware drivers and applications.

You can often achieve even better power management by cooperating with

applications and drivers.  See Power Management Programming Interface for

Windows, on page 3Ć17, for details.

Four power states are currently implemented in Windows by NORAPM.DLL.

Each state may see the system as a whole or to individual devices, such as a

LAN interface or a serial port.  However, unless otherwise specified, the terms

for these states see the entire system.

"

On

System or peripheral device is running at full speed.

"

Idle

System or device is placed in a lowĆpower state from which it returns when

activity occurs.  For example, the CPU is idled between hardware

interrupts.

"

Off

System or device is powered completely off.  It loses all volatile state

information and does not respond to any external events until power is

reapplied.  This state is not typically supported for the system itself in

NORAND products, because the Suspend state draws so little power.  Some

peripheral devices, however, may support this state.