See Also Examples Applies To
Returns an available contrast value which can be used by the opened source in its current configuation.
Syntax
object.TwainGetAvailableContrastNo (nNumber)
The TwainGetAvailableContrastNo syntax has these parts:
| Part | Description |
| object | Required. An object expression that evaluates to an object in the Applies To list. |
| nNumber | Required. Long. Index of the available contrast value. Must be a value between 1 and TwainGetAvailableContrastCount() returned value. |
Returns
Double. The selected contrast value.
Remarks
Before using this method check that the TWAIN state is >= 4 (TWAIN_SOURCE_OPEN)
To get the TWAIN state, use the TwainGetState() method.
Category
TWAIN Capability