whats going on v5 = *(_Byte *)(this + 4)?

Programmer Question

Hi,

I am looking at a code dump from IDA pro. There is a function which as this layout:

garbled_name(int this...
    unsigned int v5 ;
    v5 = *(_Byte *)(this + 4);
    ...

What I am really curious about is what exactly the '+ 4' is doing? Is this an addition or something else?

Thanks

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