Implementing pointers to methods

Hi, I would like to write a function that pops up a dialog to allow the user to edit a certain variable. I would like the dialog to be able to make a call back to the original class (or any specified class) to notify that the value changed.

So now I have to define something like this:

And pass two extra parameters to my function: one for the method and one for the class. This seems a bit cumbersome, plus I’m now worried about inheritance problems, because what if the specified class is not simply a QObject?

So I was wondering perhaps there are some standard Qt way of doing this sorta thing? Perhaps some defined types so that I don’t have to reinvent?

Any help would be appreciated!