Boulder, Colorado-based XVT Software Inc has introduced a new set of controls designed to enable developers of graphical user interfaces to build and provide sophisticated high-level functionality for applications running under the interface in much less time than has been possible until now. PowerObjects are portable to the seven graphical interfaces that XVT supports, and the company says that it has worked closely with the SunSoft Inc unit of Sun Microsystems Inc on the software. XVT observes that it can help provide an answer for the large end users and independent software vendors who have developed products and systems on Open Look using the XView toolkit. PowerObject for C will be out next month, and a C++ version is due to follow sometime in 1994, XVT says. Prices for the product will start at $500 on Unix workstations.