Main menu set with submenu - triggering issue

[Anonymous_Banned275]

I have QMenu with sub QMenu
I can trigger on submenu OK.
I wanted to be able to trigger on maim menu to run all the submenu options.
I can attempt to set the check box - trigger - and it reacts ( turns grey ) but no connect is generated and no "check mark " either.

My question is - can that be even done in Qt?

   // build main menu TOK
                    subMenu[index]  = m_ui->menuWindow_cpntrol;
                    subMenu[index] = subMenu[index]
                            ->addMenu(list[index] + " # " + QString::number(index));
                    subAction[index] = subMenu[index]->addMenu(subMenu[index]);
                    subAction[index]->setVisible(true);
                    subAction[index]->setCheckable(true);
                    // TOK subAction[index]->setText("DEBUG test main menu ");


                    // connect to main submenu
                    connect(subMenu[index] , &QMenu::triggered, this ,
                            [=]() { this->processAction(index,index) ;});

[Axel Spoerl]

@AnneRanch
This has been answered at length in this post. The summary is: It's better to keep track of your QAction objects and connect to their triggered signal.
The connect statement is syntactically correct. It will call the lambda each time an action of subMenu[index] is triggered. The information, which action (i.e. which line of the menu) was selected, is lost. The code is unlikely to produce a meaningful result.

I think that you mix up actions and menus. That has lead to an architectural problem. It can be fixed by code refactoring,

[TomZ]

@AnneRanch said in Main menu set with submenu - triggering issue:

My question is - can that be even done in Qt?

No.

A menu either opens a submenu or it triggers an action on click.

[Anonymous_Banned275]

@TomZ Then I will have a submenu which will run all the tasks. Easy , and remove the check box on the main menu because it cannot work...Thanks

[JonB]

@AnneRanch
You may have been trying to do what I did some time ago, but discovered it does not work so is not allowed in Qt. If you have a sub-menu on a menu --- i.e. the menu has that > you click on to "slide out" the sub-menu --- then although Qt allows you also put a checkbox on the parent menu item which has the > slide-out it actually does not work correctly for checking the box, and cannot be made to do so. Do not try to put a checkbox on a menu item which has a child menu slide-out.