GTK (GIMP Toolkit) is a library for creating graphical user interfaces. It's called the GIMP toolkit because it was originally written for developing the General Image Manipulation Program (GIMP), but GTK has now been used in a large number of software projects, including the GNU Network Object Model Environment (GNOME) project. GTK is built on top of GDK (GIMP Drawing Kit) which is basically a wrapper around the low-level functions for accessing the underlying windowing functions (Xlib in the case of X windows).
gtk+-1.2.10: description + notes
GTK is essentially an object oriented application programmers interface (API). Although written completely in C, it is implemented using the idea of classes and callback functions (pointers to functions).
There is also a third component called
glibthat contains a few replacements for some standard calls, as well as some additional functions for handling linked lists etc. The replacement functions are used to increase GTK's portability, as some of the functions implemented here are not available or are nonstandard on other unixes such as
g_strerror(). Some also contain enhancements to the libc versions, such as
g_mallocthat has enhanced debugging utilities.
The GTK+ home page has more information.
Developers intending to use this distribution for application development should be sure to read the information in FAQ 3.8.
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