KSPROPERTY_CAMERACONTROL_ROLL
User-mode clients use the KSPROPERTY_CAMERACONTROL_ROLL property to get or set a camera's roll setting. This property is optional.
Usage Summary Table
| Get | Set | Target | Property descriptor type | Property value type |
|---|---|---|---|---|
| Yes | 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 roll setting. This value is expressed in degrees.
Positive values cause a clockwise rotation of the camera along the image-viewing axis. Negative values cause a counterclockwise rotation of the camera, as shown in the following illustration.
Every video capture minidriver that supports this property must define a range and default value for this property. The range for the device must be -180 through +180 and the default value must be 0.
Remarks
The Value member of the KSPROPERTY_CAMERACONTROL_S structure specifies the roll setting.
Requirements
Header: ksmedia.h (include Ksmedia.h)