ICAP_UNITS

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TWAIN Capability: ICAP_UNITS

ICAP_UNITS

Description

Unless a quantity is dimensionless or uses a specified unit of measure, ICAP_UNITS determines the unit of measure for all quantities.

Application

Applications should be able to handle TWUN_PIXELS if they want to support data transfers from “dimensionless” devices such as digital cameras.

Values

Type: TW_UINT

Value after MSG_OPENDS: TWUN_INCHES

After MSG_RESET/MSG_RESETALL: TWUN_INCHES Allowed Values: TWUN_INCHES TWUN_TWIPS TWUN_CENTIMETERS TWUN_PIXELS TWUN_PICAS TWUN_MILLIMETERS TWUN_POINTS

Containers

MSG_GET TW_ONEVALUE TW_ENUMERATION

MSG_GETCURRENT TW_ONEVALUE

MSG_GETDEFAULT TW_ONEVALUE

MSG_SET TW_ONEVALUE

MSG_SETCONSTRAINT TW_ONEVALUE

TW_ENUMERATION

MSG_RESET TW_ONEVALUE

MSG_QUERYSUPPORT TW_ONEVALUE

Required By

All Image Sources

TWAIN Version Introduced

Version 1.0

Related

ICAP_FRAMES

TWAIN Notice

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