WIA_DPC_EXPOSURE_METERING_MODE

The WIA_DPC_EXPOSURE_METERING_MODE property specifies the mode that a camera uses to automatically adjust the exposure setting.

Property Type: VT_I4

Valid Values: WIA_PROP_LIST

Access Rights: Read/write

Remarks

The following table describes the constants that are valid with the WIA_DPC_EXPOSURE_METERING_MODE property.

Value Definition

EXPOSUREMETERING_AVERAGE

Set the exposure based on an average of the entire scene.

EXPOSUREMETERING_CENTERSPOT

Set the exposure based on a center spot.

EXPOSUREMETERING_CENTERWEIGHT

Set the exposure based on a center-weighted average.

EXPOSUREMETERING_MULTISPOT

Set the exposure based on a multispot pattern.

Requirements

Version

Obsolete in Windows Vista and later operating systems and should no longer be used. However, this property is still defined in Windows Vista for compatibility with applications and devices designed for Windows Server 2003, Windows XP, and previous versions of Windows.

Header

Wiadef.h (include Wiadef.h)