🚀 go-pugleaf

We are looking for a new object-oriented GUI-Toolkit for one of our projects
(the one we are currently using was found to have some major inconveniences).
We are now considering
- XVT-GUI Developement System by Precision Software,
- GRITplus from GFT,
- ObjectInterface and ObjectBuilder by Parc Place Software,
- ILOG Views from ILOG and
- Fresco (part of the X11R6-distribution),
but other suggestions are welcome.

We would appreciate if those of you who have some experience with those tools
could tell us your opinions or give us some hints which one will suit our
requirements best. We have a lot of existing C++-code to be integrated and so
our requirements are:

- native C++ class library for GUI-design
- interactive graphical UI-builder preferred
- binaries availlable for SunOS 4.1.3 (Solaris 1.x) and SunOS 5.3/5.4 (Solaris 2.3/2.4)
- source code availability would be good
- lots of widget classes (buttons, scrollbars, listboxes, menus, entryfields, ...)
  and the ability to handle a huge amount of widget objects in a window 
- 2D-vectorgraphics-support with classes for polygons, circles, etc and zooming + panning
- it should be possible to use virtual methods for callbacks (not just C-functions), i.e.
  we must be able to associate custom objects with widgets and use methods of these
  objects to process events
- multithread-capabilities (using Solaris 2.x) would be great, but is not required.

A less-important feature would be portability to OS/2 or MS-Windows (win32/win32s).
Multimedia-support is _not_ needed. 

Thanks in advance,
         Joerg Friebe 

Please reply to Joerg.Friebe@informatik.uni-oldenburg.de