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4/8/2010

This enumeration provides values that identify types of camera settings.

Syntax 

typedef enum {
	CameraControl_Pan,
	CameraControl_Tilt,
	CameraControl_Roll,
	CameraControl_Zoom,
	CameraControl_Exposure,
	CameraControl_Iris,
	CameraControl_Focus
	CameraControl_Flash
} CameraControlProperty;

Elements

CameraControl_Pan

Identifies the camera's pan setting, in degrees. Values range from –180 to +180, with the default set to zero. Positive values are clockwise from the origin (the camera rotates clockwise when viewed from above), and negative values are counterclockwise from the origin.

CameraControl_Tilt

Identifies the camera's tilt setting, in degrees. Values range from –180 to +180, with the default set to zero. Positive values point the imaging plane up, and negative values point the imaging plane down.

CameraControl_Roll

Identifies the camera's roll setting, in degrees. Values range from –180 to +180, with the default set to zero. Positive values cause a clockwise rotation of the camera along the image-viewing axis, and negative values cause a counterclockwise rotation of the camera.

CameraControl_Zoom

Identifies the camera's zoom setting, in millimeters. Values range from 10 to 600, and the default is specific to the device.

CameraControl_Exposure

Identifies the exposure setting, in log base 2 seconds. In other words, for values less than zero, the exposure time is 1/2n seconds, and for values zero or above, the exposure time is 2n seconds. For example:

Value Seconds

-3

1/8

-2

1/4

-1

1/2

0

1

1

2

2

4
CameraControl_Iris

Specifies the camera's iris setting, in units of fstop * 10.

CameraControl_Focus

Specifies the camera's focus setting, as the distance to the optimally focused target, in millimeters. The range and default value are specific to the device.

CameraControl_Flash

Specifies if the flash is turned on or off.

Remarks

For a given property, a particular device might implement only a subset of the listed range.

Requirements

Windows Embedded CE Windows Embedded CE 6.0 and later
Windows Mobile Pocket PC for Windows Mobile Version 5.0 and later, Smartphone for Windows Mobile Version 5.0 and later
Note Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements
For more information, see Setting Up the Build Environment

See Also