The current, fourth generation is the easyGUI product, offered as a commercial product starting in March 2004. Initially it was basically the third generation modified for commercial use, with license system, a proper user manual, some user interface changes, etc.
The first major addition to the system was color support (and gray-scale, which to easyGUI is the same as color). This might at first sight look like an easy addition, but on closer inspection it is more complicated, with gray-scale, palette-based and direct RGB modes used by various display controller vendors, and an seemingly infinite ability of these vendors to create different ways of encoding the color information. So, a rather universal system for color handling had to be created.
Next up came Unicode support, simply a necessity for supporting some Asian languages using large number of characters, like e.g. Chinese, Japanese and Korean. But Unicode also opens up for a lot of other languages, handled only poorly if squeezed into the traditional 8 bit character encoding space, like e.g. Farsi (Arab), Greek, Thai, Hebrew, etc. Again, like for the color functionality, things turned out to be quite complex, as right-to-left writing ability, handling of fonts with tens of thousands of characters, and other things had to be implemented.
A multitude of smaller additions have continuously been added to the system during the years, many on the basis of specific customer requests.
This all goes to show that easyGUI is a mature system, but also a system that has kept pace with the present day embedded world, both technically and functionally. It is our intention to continue this development, and keep improving on the advanced level of functionality in the easyGUI system.