KSPROPERTY_CAMERACONTROL_FOCAL_LENGTH_S structure

The KSPROPERTY_CAMERACONTROL_FOCAL_LENGTH_S structure returns filter-specific data requested using the KSPROPERTY_CAMERACONTROL_FOCAL_LENGTH property.

Syntax

typedef struct {
  KSPROPERTY Property;
  LONG       lOcularFocalLength;
  LONG       lObjectiveFocalLengthMin;
  LONG       lObjectiveFocalLengthMax;
} KSPROPERTY_CAMERACONTROL_FOCAL_LENGTH_S, *PKSPROPERTY_CAMERACONTROL_FOCAL_LENGTH_S;

Members

lObjectiveFocalLengthMax

Specifies a value of type LONG containing the maximum focal length of the lens closest to the camera subject.

lObjectiveFocalLengthMin

Specifies a value of type LONG containing the minimum focal length of the lens closest to the camera subject.

lOcularFocalLength

Specifies a value of type LONG containing the focal length of the lens closest to the camera user.

Property

Specifies an initialized KSPROPERTY structure that describes the property set, property ID, and request type.

Remarks

If the camera has only one lens, these values can be used to represent zoom ratios. See KSPROPERTY_CAMERACONTROL_FOCAL_LENGTH.

Requirements

   
Header ksmedia.h (include Ksmedia.h)

See Also

KSPROPERTY_CAMERACONTROL_FOCAL_LENGTH

KSPROPERTY_CAMERACONTROL_NODE_FOCAL_LENGTH_S

PROPSETID_VIDCAP_CAMERACONTROL

KSPROPERTY

KSPROPERTY_CAMERACONTROL_NODE_FOCAL_LENGTH_S

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