http://www.st.com/web/en/catalog/too...chtype=keyword
"Professional graphical stack library enabling the building up of Graphical User Interfaces (GUIs) (AN4323)"

"Thanks to a partnership with SEGGER Microcontroller GmbH, ST can provide the STemWin solution, based on SEGGER emWin one.
This library is a professional graphical stack library, enabling the building up of Graphical User Interfaces (GUIs) with any STM32, any LCD/TFT display and any LCD/TFT controller, taking advantage of STM32 hardware accelerations whenever possible.
STemWin is provided under binary form to any STM32 customer, for free.
STemWin Library is a comprehensive solution coming with rich features such as JPG, GIF and PNG decoding, many widgets (checkboxes, buttons…) and a VNC server allowing to display remotely a local display, but also professional development tools such as GUIBuilder to create GUIS with simple drag and drop."

"Free professional graphical stack library available in binary form
Able to handle many kinds of displays with optimized mechanisms
Memory-sparing features (memory pool, per band screen creation, refresh only changed portions, …)
Raw graphical renderer (Pixels, Shapes, Fonts, …)
Alpha blending, Antialiasing, Cursors
Window and overlap manager
Rich set of widgets (buttons, checkboxes, calendars, gauges, …)
VNC server to display remotely the display via VNC protocol (based on TCP/IP)
Full set of Development tools: GUIBuilder to create screens, Font converter, simulator, …"

Программа позволяет работать с графичесой библиотекой STemWin (урезанный бесплатный вариант библиотеки emWin).