DTWAIN_SetSourceUnit

The DTWAIN_SetSourceUnit sets the current unit of measure used by a Source.

DTWAIN_BOOL DTWAIN_SetSourceUnit (

DTWAIN_SOURCE	Source,
LONG	Unit );

Parameters

Source

Specifies a TWAIN Source.

Unit

Unit of measure to set the Source to.

Return Values

If the function succeeds, TRUE is returned. If unsuccessful, FALSE is returned.

Comments

The DTWAIN_SetSourceUnit function sets the current unit of measure to Unit for the Source Source.

The unit of measure determines which unit the Source is using when describing certain quantities such as image size. For more information on units of measure used by the Source, see Units of Measure and Image Acquisition.

TWAIN State Transitions

The Source must be in State 4 or higher.

Prerequisite Function Call(s)

DTWAIN_SysInitialize

DTWAIN Source Selection Function