C++
virtual Units resolutionUnits() const;
Description
Retrieves the units in which the image resolution was specified in the source image file. If the image file doesn't contain resolution information, then a value of kNone is returned. Possible return values include: kNone, kMillimeter, kCentimeter, kMeter, kKilometer, kInch, kFoot, kYard, and kMile. In this release, only kNone, kInch, and kCentimeter are actually used.