- use demo strings in UTF-8 encoding rather than converting them
which also simplifies the code
- replace some hard-coded width and pos. values with constants
- enlarge width of text widgets (left column) of the main window
- replace display of Unicode range U+D800 ... U+DFFF with a text
explaining that this space is used by UTF-16 surrogate pairs to
prevent warning messages about invalid Unicode text.
The Fast Light Tool Kit (FLTK) is a cross-platform C++ GUI toolkit
for UNIX®/Linux® (X11 or Wayland), Microsoft® Windows®, and macOS®.
FLTK provides modern GUI functionality without bloat and supports
3D graphics via OpenGL® and its built-in GLUT emulation.
It was originally developed by Mr. Bill Spitzak and is currently
maintained by a small group of developers across the world with
a central repository on GitHub.
FLTK comes with complete free source code. FLTK is available
under the terms of the GNU Library General Public License with
exceptions (e.g. for static linking).
Contrary to popular belief, it can be used in commercial
software! (Even Bill Gates could use it.)
Online Documentation
The documentation in HTML and PDF forms can be created by
Doxygen from the source files. HTML and PDF versions of this
documentation are also available from the FLTK web site at:
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