How do I know with libgit2 in a Qt program that a remote repository has changed?

Question

git

Good afternoon, please tell me how to get information about the state of a remote repository in a program written in Qt if libgit2 is used ? Let's say I have local and remote repositories, the remote has 1 more commit. If I use the console command git status , then I get the following in the console:

The result of running the git status command

On branch master
Your branch is behind 'origin/master' by 1 commit, and can be fast-forwarded.
(use "git pull" to update your local branch)
nothing to commit, working tree clean

However, things are not so simple with the C family of 'git_status _... '. There are a couple of examples, but they are for pure C, I would like to know how to implement this in relation to Qt