Can programing programs that vex does not sell be used with vex?
For Vex Elevation Competition NO.
However for personal use YES.
I suggest MPLAB which is a is a free C compiler that works with the Vex System but requires a rather high level of skill in C programming.
Technic-R-C
I was wondering about software like Labview, which the Vex site does not even mention.
We use MPLab’s compiler with the WPILibrary with great success. All of the sensors and motors have API calls in the library that make things easy.
I started a post about using Labview with Vex a couple weeks ago, but I have not received any replies. However I can conclude that there might be a very small chance of programming Vex with Labview but the chance of this happening is very very low due to the differences between processing speeds/processors used/different architecture/etc.
Technic-R-C