How much work is it to convert from my old DOS ScreenIO to GUI ScreenIO?
It’s actually quite easy. GUI ScreenIO includes a conversion utility that converts your COBOL source code as well as the panels. One user has converted a 1,200 panel/500 program application without unreasonable effort. We worked with a number of users to make the conversion as general as possible. Most developers do end up tweaking the look and feel of their converted application, however, because the Windows user interface is generally quite a bit different than the old character-mode interface, plus most developers want to take advantage of the additional functionality offered by GUI ScreenIO. The programming interface to GUI ScreenIO is similar to that of legacy ScreenIO, except that it’s simpler. As a result, conversion is usually quite easy.