Qt signals are signals used by the Qt library and the IDE Qt Creator.
Always seperate classes with Qt signals/slots in a header (.h) file and an implementation (.cpp) file. If not, this will result in the link error undefined reference to 'vtable for MyClass'.
- Qt signal example 1: emitter and receiver, the Qt4 way
- Qt signal example 2: emitter and receiver, the Qt5 way
Signal pages
