c++ - How to copy class variable and call in another file -

in main.cpp

void mainwindow::onfinish( imageresult* result ) m_imageidresult = *result; m_result = m_imageresult.allmetadata; 

now want use m_result in display.cpp file. how copy m_result can use in other file. tried following have m_display in header file of display.h

m_displaymodel->howtodefinethisfunction(m_result, asset-> ); 

i sorry basic question, have been unlucky , spent 2 days figuring out. lot time.

the easiest way pass function parameter:

some_func_in_display_cpp_file(m_result, /* other parms ... */); 

and define function as:

return_type some_func_in_display_cpp_file(const m_result_type&, /* ... */) {