Genero Business Development Language is designed to provide a real graphical look and feel. Compared to the text mode interface as with Informix® 4GL applications, this is a significant improvement for the end user. For example, with Genero, when using the graphical mode, you get real resizeable windows when executing an OPEN WINDOW instruction.
The graphical mode is enabled by default. When set to 1, the FGLGUI environment variable defines the graphical mode usage. In graphical mode, the application forms are displayed on the front-end workstation identified with the FGLSERVER environment variable. Application forms will be rendered with real graphical widgets providing a nice look-and-feel as shown.
Figure 1. Graphical mode rendering
To simplify migration from text mode to graphical mode with legacy applications, you can use the traditional GUI mode option to render application windows in a single front end GUI window.