QT5 Add right-click menu Simple Test

1. Include the relevant header file in the. h file

#include <QMenu><QContextMenuEvent>

2. Define an Action object in the. h file

Qaction **del;

3. Declaring a private method in an. h file

void contextmenuevent (qcontextmenuevent *e);

4. Add right-click after action slot declaration in. h file

Private Slots:     void edit_line ();     void del_line ();

5. Instantiate an Action object in the build function of the CPP file

Edit =NewQaction (Qicon (":/icon/edit.png"), TR ("Edit"), ThisConnect (edit, SIGNAL (triggered)), This, SLOT (Edit_line ()));d El=NewQaction (Qicon (":/icon/delete.png"), TR ("Delete"), This), connect (Del, SIGNAL (triggered ()), This, SLOT (Del_line ()));

6. Implement right-click events in CPP files

void Mainwindow::contextmenuevent (qcontextmenuevent *e) {    new  qmenu ();
    menu->setfixedwidth (+);    Menu,addaction (edit);    Menu, Addaction (del);     Menu->exec (e->globalpos ());     Delete menu;}

Finally implement the post-click Processing in the CPP file

void Mainwindow::edit_line () {     //put your code}void  MainWindow:: Del_line () {     //put your code}

QT5 Add right-click menu Simple Test