DTWAIN_RangeSetValue

The DTWAIN_RangeSetValue function sets either the low, high, step, default, or current values in the DTWAIN_RANGE.

DTWAIN_BOOL DTWAIN_RangeSetValue (

DTWAIN_RANGE	Range,
LONG	WhichValue,
LPVOID	lpValue );

Parameters

Range

A valid DTWAIN_RANGE type.

WhichValue

Range value to set

lpValue

Address of the new value to set in the DTWAIN_RANGE

Return Values

TRUE if successful, FALSE otherwise. If the function returns FALSE, call DTWAIN_GetLastError() to get extended information.s

Comments

The DTWAIN_RangeSetValue function sets a value in the DTWAIN_RANGE Range. The WhichValue denotes the value in the DTWAIN_RANGE that is to be set. The WhichValue can be one of the following:

Constant	Value	Defintion
DTWAIN_RANGEMIN	1	Minimum value
DTWAIN_RANGEMAX	2	Maximum value
DTWAIN_RANGESTEP	3	Step size
DTWAIN_RANGEDEFAULT	4	Default value
DTWAIN_RANGECURRENT	5	Current value

The lpValue is the address of the value that is to be used to set in the DTWAIN_RANGE. Since DTWAIN_RANGEs can differ in data types, the caller to this function is responsible in seeing that the data type residing at lpValue matches the data type stored in Range.

TWAIN State Transitions

None.

Prerequisite Function Call(s)

DTWAIN_SysInitialize