KSPROPERTY_CAMERACONTROL_IRIS_RELATIVE
The KSPROPERTY_CAMERACONTROL_IRIS_RELATIVE property specifies a camera's aperture setting.
Usage Summary Table
| Get | Set | Target | Property Descriptor Type | Property 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.
| Value | Description |
|---|---|
| 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
Header: ksmedia.h (include Ksmedia.h)