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ProgrammingChapter —7
256 700 Series Color Mobile Computer User’sManual
ID Field Values
The id field of lpInBuf may be one of the following values:
ID Field Values
ITC_REGISTRY_SAVE_ENABLE
This function enables or disables the save registry to non-volatile media feature of the RegFlushKey() function.
lpOutBuf mustbesettozero(FALSE)ifthefeatureistobedisabledorone(TRUE)ifthefeatureistobeenabled.
ITC_ DOCK_SWITCH
This IOCTL sets a position of the dock switch. The dock switch may be set to either “modem” or “serial” positions.
lpOutBuf must point to a bu ffer that contains a byte value of e ither DOCK_MODEM or DOCK_SERIAL as
defined i n OEMIOCTL.H; the value specifies the position the switch is to be set. The call appears as follows:
// port = DOCK_MODEM or DOCK_SERIAL as defined in oemioctl.h
BOOL SetDockSwitch( BYTE port)
{
DWORD cmd = ITC_DOCK_SWITCH;
DWORD cbRet;
return KernelIoControl(IOCTL_HAL_ITC_WRITE_SYSPARM,&cmd, sizeof(cmd),
&port,sizeof(port),&cbRet)
}
ITC_ WAKEUP_MASK
This IOCTL sets a bit mask that represents the mask for the five programmable wakeup keys. The I/O key is not a
programmable wakeup key. By default it is always the system resume key and all other keys are set to disable key
wakeup. A zero in a bit position masks the wakeup for that key. A one in a bit position enables wakeup for that key.
lpOutBuf must point to a bu ffer that contains a byte value of a wakeup mask consisting of the OR’ed constants as
definedinOEMIOCTL.H.Onlythefollowingkeysareprogrammableaswakeupevents.
#define SCANNER_TRIGGER 1
#define SCANNER_LEFT 2
#define SCANNER_RIGHT 4
#define GOLD_A1 8
#define GOLD_A2 0x10
ITC_AMBIENT_KEYBOARD (does not apply to the 730 Computer)
This IOCTL sets the threshold for the keypad ambient sensor. This can be a value from 0 (always off) to 255 (always
on). lpOutBuf must point to a buffer that contains a byte value of the desired setting.
ITC_AMBIENT_FRONTLIGHT (does not apply t o the 730 Comput er)
This IOCTL sets the threshold for the frontlight ambient sensor. This can be a value from 0 (always off) to 255.
lpOutBuf must point to a bu ffer that contains a byte value of the desired setting.