minimal cross-platform gui lib? [closed]

Question

I'm looking for a minimal and easy to learn C or C++ cross platform gui library.

In a nutshell I only need the following functionality:

• application window
• menu bar
• some simple dialogs, File-open and save. Maybe a user-written one.
• user canvas where I can draw lines an circles on.
• some kind of message/event loop mechanism.

Target platforms would be Win32 and linux. MacOS would be nice to have but is not important at the moment.

Why am I looking for something minimal? I don't want to spend much time to learn a big and full blown abstraction system for a really small application. The easier and leaner, the better.

Any suggestions?

Answer 1

If you need something small, try FLTK libs: I used them at work (embedded development) and I think it's a valid option. Maybe apps are not as "cool" as QT-based ones, but developing with FLTK libs is fast and easy.

Answer 2

I don't know about minimal, but Qt is pretty easy to learn.

Its light-weight enough to run on embedded devices, so you be the judge.

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EDIT after seeing the comments:

Yes, Qt is a fullblown application framework, but here's my case: an app with cross platform GUI but other platform-dependent code is not really platform independent. I don't think moving existing C++ code into Qt entails any work at all. If anything, this would allow Nils to use his existing C++ code, and only use Qt for a GUI. But of course, I assume that the existing C++ code is portable.