Extended image information value classes encapsulate the value of the extended image information requested from the TWAIN data source. An instance of this class will be part of a collection of possibly other ImGearExtendedImageInfoContainerValue objects used to encapsulate the complete value of the requested extended image information. Extended image information is requested through a call to ImGearTWAIN.GetExtendedImageInformation.

This is an abstract class, and therefore you cannot create an ImGearExtendedImageInfoContainerValue object. This object is a member of the Values collection of the ImGearExtendedImageInfoContainer object which can be obtained by calling the ImGearTWAIN.GetExtendedImageInformation method. The ImGearExtendedImageInfoContainerValueFloat and ImGearExtendedImageInfoContainerValueString objects are inherited from this object, and to access the float or string value stored in this object you must cast this object to the appropriate child object.

System.Object
   ImageGear.TWAIN.ImGearExtendedImageInfoContainerValue
      ImageGear.TWAIN.ImGearExtendedImageInfoContainerValueFloat
      ImageGear.TWAIN.ImGearExtendedImageInfoContainerValueString

Reference