How to include a .qrc in another .qrc file?
Is there any way to include a .qrc file into another .qrc file, just like the #include in C?
Nope. All you can do is to add rcc file to qrc and in run-time load it in some subtree.
A workaround may be to use .pri files instead. Those .pri files can then reference one or more resource files and/or include other .pri files. In your .pro file, you then include() the .pri file you want, and all the resources in the tree of resource .pri files will be added to your project.
Thanks, I will try that!