Implemented entirely in the form of code, two windows, a child window of the main window, the window needs to add another child QWight class inheritance QWight be selected when adding such newly added cpp will be omitted in some
The main window class object need to include the sub-window, click on the button in the main window sub-window show () can, but need to use the sub-window signal transmission manner, to send information to implement the main window of the main window sub-window button press
.h affirmed the child window
signals:
void mysignal ();
groove subwindow button call:
emit mysignal (); signal is sent
in the constructor of the main window, binding:
QObject::connect(subw,SIGNAL(mysignal()),this,SLOT(doprocess2()));
在
doprocess2 implemented actions to receive signals
Note:
Parameters QObject :: connect the easy wrong, four parameters, some parameters of the function name wrong compiler will not complain