Gtkdialog is an open source graphical user interface (GUI) development tool designed to be used with the GTK+ widget library. It can be used to quickly create user interfaces for applications and scripts in a cross-platform manner. Gtkdialog allows the user to create custom dialog boxes and other window elements, such as buttons, checkboxes, radio buttons and text entry fields. It also supports drag-and-drop as well as other common GUI development features. Gtkdialog is written in the C programming language and is available for Linux, Windows, MacOS, and other Unix-like operating systems. It is distributed under the GNU General Public License (GPL).
Discontinued The project is no longer being developed. The latest version, 7.4.2, released in June 2012, can still be downloaded from the official website.