Operation Manual

ProgrammingChapter —7
222 700 Series Color Mobile Computer User’s Manual
Parameters
nInfoId Integer specifying the information to return. These values are defined:
NLED_COUNT_INFO pOutput buffer specifies the number of LEDs on the device.
NLED_SUPPORTS_INFO_ID pOutput buffer specifies information about the capabilities
supported by the LED.
NLED_SETTINGS_INFO_ID pOutput buffer has information about LED current settings.
pOutput Pointer to the bu ffer to whi ch th e information is returne d. The buffer points to various structure
types defined in “nled.h”, depending on the value of nId, as detailed in the following table:
Value of nID Structure in pOutput
LED_COUNT_INFO NLED_COUNT_INFO
NLED_SUPPORTS_INFO NLED_SUPPORTS_INFO
NLED_SETTINGS_INFO NLED_SETTINGS_INFO
NLEDSetDevice
Usage
#include “nled.h”
Syntax
BOOL NLEDSetDevice ( UINT nDeviceId, void *pInput );
Parameters
nDeviceId Integer specifying the device identification. The following is defined:
NLED_SETTINGS_INFO_ID Contains information about the desired LED settings.
pInput Pointer to the buffer that contains the NLED_SETTINGS_INFO structure.
Reboot Functions
There are several methods, via Kernel I/O Control functions, that an ap-
plication program can use to force the 700 Color Computer to reboot.
You can also see the Device Resource Kit in the IDL for information
about these functions. The IDL is available as a download from the Inter-
mec web site at www.intermec.com/idl. Contact your Intermec representa-
tive for information.
S IOCTL_HAL_REBOOT
This perf orms a warm-boot (page 219). See note below.
S IOCTL_HAL_COLDBOOT
Forces a cold reboot. This resets the 700 Color Computer, reloads Win-
dows CE as if a power-up was performed, and discards the contents of
the Windows CE RAM-based object store (page 217).
S IOCTL_HAL_WARMBOOT
Performs a system warm-boot, preserving the object store (page 217).
Note: Using IOCTL_HAL_REBOOT is no longer re commended, use
either IOCTL_HAL_WARMBOOT or IOCTL_HAL_COLDBOOT.
IOCTL_HAL_REBOOT is still supported for backward-compatibility
but its use can lead to difficulties.