Declaration
property Filter: TIETWFilter;
Description
Describes the color characteristic of the subtractive filter applied to the image data.
Specifying ietwUndefined unsets this property, while ietwNone sets the "none" value.
Twain Property: ICAP_FILTER
Note: Use
IsCapabilitySupported to detemine if this capability is supported by the current scanner
Default: ietwUndefined