Anjuta is a versatile Integrated Development Environment (IDE) for C and C++ on GNU/Linux. It has been written for GTK/GNOME and features a number of advanced programming facilities including project management, application wizards, an interactive debugger and a powerful source...
Yad (yet another dialog) is a fork of Zenity with many improvements, such as custom buttons, additional dialogs, pop-up menu in notification icon and more. It's useful for creating quick and easy GUIs for shell and batch scripting.
wxWidgets is an excellent framework that enables the creation of multi-platform applications with and without a graphical user interface. There are several applications that help create dialogs visually, even so, some practical problems have led me to start the development of a...
wxGlade is a GUI designer written in Python with the popular GUI toolkit wxPython, that helps you create wxWidgets/wxPython user interfaces. At the moment it can generate Python, C++, Perl, Lisp and XRC (wxWidgets' XML resources) code.
Visualwx aims to be the ultimate RAD tool, designed for c++, python, perl, ruby, lua and wxWidgets. Still there are many things to do, but we've achieved considerable progress.Discontinued
Last version seems to be VisualWx 0.87.6.0 Alfa April 13 2007, see http://visualwx.altervista.org/downloads.php. There is no version for Python 3.
wxDev-C++ is an extension of Bloodshed Dev-C++ by Colin Laplace et. al. This program helps you to create dialogs and frames for wxWidgets visually using a form designer.
The project is no longer developed. Last version, 7.4.2, released in June 2012, can be still downloaded from the official website.