I use to write my code in FORTRAN and build GUI using 3rd party software named 'Winteracter' which is an amazing piece of software coded in 'C++' but designed to FORTRAN users. Now, I have to write some numerical code to CFD and I can't use FORTRAN, since there are no interfaces and it is not possible to write them, because the libraries are huge. So, what brings me to this forum is quit simple. Which toolkit is available to design GUI and also with capabilities to 2D and 3D graphics?
thanks in advance