Intermec 751G - Manual (Page 82)

Chapter 3 — Configuring the Computer
68 751G Color Mobile Computer User’s Manual
IOCTL_HAL_ITC_READ_PARM
Usage
#include “oemioctl.h”
Syntax
BOOL KernelIoControl( IOCTL_HAL_ITC_READ_PARM,LPVOID
lpInBuf,DWORD nInBufSize,LPVOID lpOutBuf,DWORD
nOutBufSize,LPDWORD lpBytesReturned );
Parameters
Return Values
Returns TRUE if function succeeds. Returns FALSE if the function fails.
GetLastError() may be used to get the error value. Either
ERROR_INVALID_PARAMETER or
ERROR_INSUFFICIENT_BUFFER may be returned when this function
is used to get the error.
ID Field Values
The id field of the PARMS structure may be one of the following values:
lpInBuf Points to this structure. See “ID Field Values” below.
struct PARMS {
BYTE id;
BYTE ClassId;
};
nInBufSize Must be set to the size of the PARMS structure.
lpOutBuf Must point to a buffer large enough to hold the return data of the
function. If this field is set to NULL and nOutBufSize is set to zero
when the function is called the function will return the number
bytes required by the buffer.
nOutBufSize The size of lpOutBuf in bytes.
lpBytesReturned Number of bytes returned by the function for the data requested.
ID Field Values
ITC_NVPARM_ETHERNET_ID
Returns Ethernet 802.11b or 802.11b/g MAC Address. Six bytes returned in buffer pointed to by lpOutBuffer
ITC_NVPARM_SERIAL_NUM
Returns serial number of device in BCD format. Six bytes returned in buffer pointed to by lpOutBuffer
ITC_NVPARM_MANF_DATE
Returns device manufacture date in BCD YYYY/MM/DD format. 4 bytes sent in buffer pointed to by lpOutBuffer
ITC_NVPARM_SERVICE_DATE
Returns last device service date in BCD YYYY/MM/DD format. Four bytes sent in buffer pointed to by lpOutBuffer
ITC_NVPARM_DISPLAY_TYPE
Returns device display type. One byte returned in buffer pointed to by lpOutBuffer
ITC_NVPARM_EDG_IP
Returns device Ethernet debug IP address. Four bytes returned in buffer pointed to by lpOutBuffer