KSPROPERTY_CAMERACONTROL_EXPOSURE

User-mode clients use the KSPROPERTY_CAMERACONTROL_EXPOSURE property to get or set a digital camera's exposure time. This property is optional.

Usage Summary Table

GetSetTargetProperty descriptor typeProperty 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 the length of exposure.

This value is expressed in log base 2 seconds, thus, for values less than zero, the exposure time is 1/2n seconds. For positive values and zero, the exposure time is 2n seconds. For example:

ValueSeconds

-7

1/128

-6

1/64

-5

1/32

-4

1/16

-3

1/8

-2

1/4

-1

1/2

0

1

1

2

 

Remarks

The Value member of the KSPROPERTY_CAMERACONTROL_S structure specifies the length of exposure.

Every video capture minidriver that supports this property must define its own range and default value for this property.

Requirements

Header

Ksmedia.h (include Ksmedia.h)

See also

KSPROPERTY
KSPROPERTY_CAMERACONTROL_S

 

 

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