// winbio_ioctl.h

typedef struct _WINBIO_SET_INDICATOR {
  DWORD                   PayloadSize;
  WINBIO_INDICATOR_STATUS IndicatorStatus;
} WINBIO_SET_INDICATOR, *PWINBIO_SET_INDICATOR;
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (ns-winbio_ioctl-_winbio_set_indicator)

_WINBIO_SET_INDICATOR structure

Description

The WINBIO_SET_INDICATOR structure is the IN payload for IOCTL_BIOMETRIC_SET_INDICATOR.

Members

`PayloadSize`

Specifies the total size of the payload, which includes the fixed length structure and any variable data at the end.

`IndicatorStatus`

Specifies a WINBIO_INDICATOR_STATUS that indicates whether the indicator light should be set on or off.

Possible values are shown in the following table.

Indicator status code	Description
WINBIO_INDICATOR_ON	The indicator light is on, and changes according to the sensor status. To be able to set WINBIO_INDICATOR_ON, you must set WINBIO_CAPABILITY_INDICATOR in the Capabilities member of the WINBIO_SENSOR_ATTRIBUTES structure.
WINBIO_INDICATOR_OFF	The sensor indicator light is off. Sensors that do not have an indicator light will always return this value in IOCTL_GET_SENSOR_STATUS.

WINBIO_SET_INDICATOR - NtDoc