
Text outside the 16-bit X11 coordinate space must be clipped before calling X11 draw functions, otherwise text might appear anywhere in the window because X11 would "truncate" the coordinates instead of proper clipping (X11 handles only 16-bit coordinates).
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README - Fast Light Tool Kit (FLTK) Version 1.4.0
** This FLTK repository is now our official source code repository. **
WHAT IS FLTK?
The Fast Light Tool Kit ("FLTK", pronounced "fulltick") is a
a cross-platform C++ GUI toolkit for UNIX(r)/Linux(r) (X11),
Microsoft(r) Windows(r), and MacOS(r) X. FLTK provides
modern GUI functionality without the bloat and supports 3D
graphics via OpenGL(r) 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 in the US.
For more information see file README.
Description
Languages
C++
50.9%
C
42.7%
Objective-C++
1.9%
Roff
1.8%
CMake
1.3%
Other
1.4%