KSPROPERTY_CAMERACONTROL_EXTENDED_ISO

Article
02/27/2023

This property selects the ISO setting for the camera. The ISO setting is chosen from a group of presets or set to automatic.

Usage Summary Table

Get	Set	Target	Property descriptor type	Property value type
Yes	Yes	Pin	KSPROPERTY	KSCAMERA_EXTENDEDPROP_HEADER

The property value (operation data) contains a KSCAMERA_EXTENDEDPROP_HEADER structure and a KSCAMERA_EXTENDEDPROP_VALUE structure. The KSCAMERA_EXTENDEDPROP_VALUE is required but not used.

The total property data size is sizeof(KSCAMERA_EXTENDEDPROP_HEADER) + sizeof(KSCAMERA_EXTENDEDPROP_VALUE). The Size member of KSCAMERA_EXTENDEDPROP_HEADER is set to this total property data size.

The Capability member of KSCAMERA_EXTENDEDPROP_HEADER contains a bitwise OR combination of one or more of the following ISO settings.

ISO	Description
KSCAMERA_EXTENDEDPROP_ISO_AUTO	The ISO setting is automatic.
KSCAMERA_EXTENDEDPROP_ISO_50	ISO 50
KSCAMERA_EXTENDEDPROP_ISO_80	ISO 80
KSCAMERA_EXTENDEDPROP_ISO_100	ISO 100
KSCAMERA_EXTENDEDPROP_ISO_200	ISO 200
KSCAMERA_EXTENDEDPROP_ISO_400	ISO 400
KSCAMERA_EXTENDEDPROP_ISO_800	ISO 800
KSCAMERA_EXTENDEDPROP_ISO_1600	ISO 1600
KSCAMERA_EXTENDEDPROP_ISO_3200	ISO 3200
KSCAMERA_EXTENDEDPROP_ISO_6400	ISO 6400
KSCAMERA_EXTENDEDPROP_ISO_12800	ISO 12800
KSCAMERA_EXTENDEDPROP_ISO_25600	ISO 25600

The Flags member of KSCAMERA_EXTENDEDPROP_HEADER contains the current ISO setting for the camera. The camera driver may support a subset of the ISO settings. If this property control is supported, the driver must support KSCAMERA_EXTENDEDPROP_ISO_AUTO.

This property control is asynchronous and not cancelable.

Remarks

Getting the property

When responding to a KSPROPERTY_TYPE_GET request, the driver sets the members of the KSCAMERA_EXTENDEDPROP_HEADER to the following.

Member	Value
Version	1
PinId	The pin ID for the photo pin.
Size	sizeof(KSCAMERA_EXTENDEDPROP_HEADER) + sizeof(KSCAMERA_EXTENDEDPROP_VALUE)
Result	0
Capability	KSCAMERA_EXTENDEDPROP_CAPS_ASYNCCONTROL \| (ISO settings supported).
Flags	The current ISO value setting (only one value).

If no ISO was previously set, then Flags is set to KSCAMERA_EXTENDEDPROP_ISO_AUTO (default).

Setting the property

When the property is set, a KSPROPERTY_TYPE_SET request, the Flags member of KSCAMERA_EXTENDEDPROP_HEADER will contain the ISO setting to enable.

Requirements

Version	Available starting with Windows 8.1.
Header	Ksmedia.h (include Ksmedia.h)