KSPROPERTY_CAMERACONTROL_PAN_RELATIVE
The KSPROPERTY_CAMERACONTROL_PAN_RELATIVE property specifies a camera's rotation around the vertical axis.
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 relative pan setting. The size of the value represents the desired pan speed; a higher value represents a higher speed.
| Value | Description |
|---|---|
| 0 | Stop panning. |
| Positive value | Start panning to the right. |
| Negative value | Start panning to the left. |
Remarks
The Value member of the KSPROPERTY_CAMERACONTROL_NODE_S structure specifies the relative pan.
Note that a particular device might support only a certain speed range. To determine the range of speeds supported by the device, an application can issue a KSPROPERTY_TYPE_BASICSUPPORT request. You can specify KSPROPERTY_TYPE_BASICSUPPORT in the Flags member of the KSPROPERTY_ITEM structure.
Some devices support only a single pan speed. In this case, the sign of the Value member indicates which direction to pan.
When making a set request, the client should supply one of the values in the preceding table in the Value member of the KSPROPERTY_CAMERACONTROL_NODE_S structure.
When making a get request, the client receives one of the values in the preceding table in the Value member of the KSPROPERTY_CAMERACONTROL_NODE_S structure. The value indicates the current pan status of the camera.
Requirements
Header: ksmedia.h (include Ksmedia.h)
See also
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