What does this do/mean?

[HenriK]

Hello, it´s me here. I was trying to learn how to use DirectX and XInput when I accidentally found this kind of marking in a piece of code:

function().something

Now may I ask you what does this marking actually mean and/or do?

[webJose]

If the function returns an object that has the something method/field (as per its class definition), then the above is just doing that: Calling something on the returned object.