Qt signals and slots pass custom type parameters (qRegisterMetaType)

1 #include <QMetaType>//Remember to include this header file
2 //my_type is my own defined type
3 qRegisterMetaType<my_type>("my_type");
4 connect(xx,SIGNAL(xx(my_type)),xx,SLOT(xx(my_type)));

 

https://blog.csdn.net/d_a_r_k/article/details/78414482