gui - In tools development, what languages and technologies are currently in use?

I am an aspiring tools developer currently in university. Normally I use both C++ and C# to and from but as my time at university is coming to an end, what language and technologies are worth focusing on? With tools I'm not only thinking simple data-file editors, but level editors and such as well.

I have tried searching in numerous places but generally I only find questions regarding what language or tools to use for game development. As I want to create the tools rather than use them, the answers don't necessarily apply.

Seeing as C++ still seems to be the language of choice in the gaming industry, is it also still the primary language for tools? If so, what UI and core libraries are most prominent? wxWidgets and stl/boost? Plain Win32?

Or - if C++ is being phased out in favor of "easier" languages like C# - is WinForms the right pick, or is the industry moving towards WPF? Maybe scaleform internally as well?

In short, is there anything I absolutely need to know to not be just an expensive chair heater?

Answer

In short, is there anything I absolutely need to know to not be just an expensive chair heater?

Yes, that you are asking the wrong kinds of questions. Technology and requirements will change and you will be required to adapt. Don't worry too much about learning the "proper" language or technology. Learn to think and to solve problems. At best you will be minimally competent when you graduate anyhow.

That said, there are no industry standards for this sort of thing. In my experience, C# is gaining quite a lot of ground within the industry for tools work. But there are still tools written in C++, in pure Win32, in WxWidgets or some other GUI framework. Just as with C# you'll have teams writing tools in Windows Forms, WPF, GUI toolkits built on those (such as DevExpress). Many times you will be interfacing with the extensive existing game-side APIs as well. You may be using Python or Dephi.

Working in tools provides a wealth of options, even more than working in the game-side code itself (which, as you note, is almost exclusively C or C++ these days). Certainly exposing yourself to a broad array of languages and technologies while you are in school is a good idea, but I would strongly urge you to do so because you are interested in that language or technology for its own sake rather than because you're guessing that it will be the "right" thing to know come job application time. It's actually surprisingly easy to tell in an interview if a candidate was exploring a technology because he or she had a passion for it, or if he or she was just doing it to stick it on a resume.