How is it that their is a dot here? What is this?

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QChart* chart = chartView().chart();

What I have tried:

I tried looking at it. I am having a hard time figuring out what this is.

Posted 5-Nov-20 11:16am

CodeProjectQuestions

Updated 5-Nov-20 20:12pm

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2 solutions

Solution 1

You need to learn the basics, not just ask questions about random parts of them: you aren't going to get far unless you do understand what it going on.

And "the dot here" is very, very definitely C++ basics!

:sigh:
Have a look here: What is the difference between the dot (.) operator and -> in C++?[^] but unless you understand quite a bit more than I suspect you do, even that isn't going to make a lot of sense ...

Posted 5-Nov-20 11:43am

OriginalGriff

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CPallini · Accepted Answer · 2020-11-05T20:13:00

The dot, roughly speaking, it is the 'member access operator', it allows your code to access an object member (a public variable or a method).

Quote:
QChart* chart = chartView().chart();

The above code looks 'strange' to the novice because the dot is chained to a function call. The interpretation however is rather simple: the chartView() call returns an object, then the method chart() of the object itself is called, eventually the result of the method call is assigned to the chart pointer variable.