User's Manual

ProgrammingChapter —7
252 700 Series Color Mob ile Computer User’s Manual
IOCTL_HAL_ITC_WRITE_SYSPARM
Describes and enables the registry save location.
Usage
#include “oemioctl.h”
Syntax
BOOL KernelIoControl( IOCTL_HAL_ITC_WRITE_SYSPARM,LPVOID
lpInBuf,DWORD nInBufSize, LPVOID lpOutBuf, DWORD
nOutBufSize, LPDWORD lpBytesReturned );
Parameters
lpInBuf Asinglebytethatmaybeoneoftheid values. See “ID Field Values”
on the next page.
nInBufSize Must be set to the size of the lpInBuf in bytes.
lpOutBuf Mus t point to a bu ffer large enough to hold th e data to be written
to the non-volatile data store.
nOutBufSize ThesizeoflpOutBuf in bytes.
lpBytesReturned The number of bytes returne d by the function.
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 fu nction
is used to get the error.