Intermec 751G 用户手册

#include “nled.h”

BOOL NLEDGetDeviceInfo ( UINT nInfoId, void *pOutput );

#include “nled.h”

BOOL NLEDSetDevice ( UINT nDeviceId, void *pInput );

There are several methods, via Kernel I/O Control functions, that an 
application program can use to force the 751G 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 Intermec web 
site at 

. Contact your Intermec representative for 

information.

• IOCTL_HAL_REBOOT

This performs a warm-boot (

). See note on the next page.

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 buffer to which the information is returned. The buffer points to various structure types 
defined in “nled.h”, depending on the value of nId, as detailed in the following table:

LED_COUNT_INFO

NLED_COUNT_INFO

NLED_SUPPORTS_INFO

NLED_SUPPORTS_INFO

NLED_SETTINGS_INFO

NLED_SETTINGS_INFO

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.