c++ - A good (and free) VCL GUI alternative -


I found a project with a dirty VCL codebase built on Borland C ++ Builder 6. I want to rewrite most of the part since it is rarely in the current situation. I am looking for a good and free option for VCL. This is a Windows only closed source commercial project.

The main requirements are:

  1. Free for commercial off-source projects
  2. Manage Windows GUI. Other components (DB links and accessories) are not required
  3. Be flexible (hence can write an existing GUI component based on existing terms)
  4. Become STL Friendly.

Post your suggestions with pros and cons if possible.

Edit

Thanks for all the answers. I have decided to go with Qt because there are some good features like Qt Linguistic Translation Suits.

Try Its LGGL can be used in such closed source software, it provides widgets, web rendering through networking functions, database access, webkit, animation and much more. Its document is one of its best types.


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