Hi there. I'm taking a serious interest in porting Qt 4 to JavaScript using clang http://clang.llvm.org/ I know it sounds crazy, but you can write a clang plug-in that can visit the entire source code AST (abstract syntax tree) and output any information you need, including changing how Qt calls are made, and rewrapping those Q_OBJECT, Q_PROPERTY etc entries. It seems entirely possible to migrate most KDE 3.5 to use the QT 4 api automatically with relatively few hand-written parts - apart from the plug-in, that is! Any thoughts? Philip Ashmore P.S. I could have waited until I had completed the port to JavaScript before posting this, but that's going to take a while, and will involve a lot more hand-written parts - mostly stubbing out what html5 can't provide.