KSPROPERTY_CAMERACONTROL_IRIS_RELATIVE

The KSPROPERTY_CAMERACONTROL_IRIS_RELATIVE property specifies a camera's aperture setting.

Usage Summary Table

GetSetTargetProperty Descriptor TypeProperty Value Type

No

Yes

Filter or node

KSPROPERTY_CAMERACONTROL_S or KSPROPERTY_CAMERACONTROL_NODE_S

LONG

 

The property value (operation data) is a LONG that specifies a camera's relative iris setting. Note that both the iris step size and the iris step default value are implementation-specific.

ValueDescription

0

Set the iris to the default opening. This default value is implementation-specific and supplied in hardware.

Positive value

Open the iris one step.

Negative value

Close the iris one step.

 

Remarks

When making a set request, you should provide one of the values in the preceding table in the Value member of the KSPROPERTY_CAMERACONTROL_NODE_S structure.

Set requests will fail if the Auto-Exposure mode control is in Auto mode or Shutter Priority mode.

Requirements

Version

Available for Windows Vista and later versions of the Windows operating system.

Header

Ksmedia.h (include Ksmedia.h)

See also

KSPROPERTY_CAMERACONTROL_NODE_S

 

 

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