Just curious about one thing:
1) With this framework I can get information from the python program to affect the QML (and change the button to a blue colour). How do I get information to the python program? In other words, if I have a python function that's function(int) -> how do I provide the int argument for the python FROM the QML?
you simply declare the signal as: updateRequired(int number); and connect it to the slot that
accepts an integer.
It's a little hard for me to figure out because this stuff is all indirect - in the QML the signal is referred to as if it were a function. And the function gets the data from the signal, but it doesn't seem to make sense how that happens because there's no real link to it. I kinda understand what I'm doing, but not enough to figure out how to get the into to python.
the view.rootObject() is your qml's root item. when you declare a signal in qml, it gets created
as a normal Qt signal, which you can then connect to any c++ (or in this case, python) slot.
yes, the signal is a function (that optionally takes arguments), which calls all the slots that we
connect to the signal (and the arguments are passed to them, if any).