How do I tell on Mac OS X if I have the Carbon or Cocoa version of Qt installed?

Question

I installed the QtSDK, but I can't find any documentation anywhere that specifies whether it uses the Cocoa or Carbon version. Can I find out which got installed? If not, is it safe to install the Cocoa version from the Library only dmg? Qt version is 4.6.3, system version is 10.6.4.

Answer 1

When using qmake, the following should work:

There is QT_MAC_USE_COCOA, so a simple test would be:

...
#ifdef QT_MAC_USE_COCOA
    std::cout << "Cocoa!" << std::endl;
#else
    std::cout << "Carbon!" << std::endl;
#endif