How to Identify if the process in User Interface Process?

Question

How can I get information from a process that it is UI(User Interface) process or non-ui?

With UI process I mean, Finder, Dock, System UI server, or any other mac a

Answer 1

On the lines of darvidsOn, below is the answer to your question.

  CFArrayRef UiProcesses()
    {
        CFArrayRef  orderedwindows = CGWindowListCopyWindowInfo(kCGWindowListOptionAll, kCGNullWindowID);
        CFIndex count = CFArrayGetCount (orderedwindows);
        CFMutableArrayRef uiProcess = CFArrayCreateMutable (kCFAllocatorDefault , count,  &kCFTypeArrayCallBacks);
        for (CFIndex i = 0; i < count; i++)
        {
            if (orderedwindows)
            {
                CFDictionaryRef windowsdescription = (CFDictionaryRef)CFArrayGetValueAtIndex(orderedwindows, i);
                CFNumberRef windowownerpid  = (CFNumberRef)CFDictionaryGetValue (windowsdescription, CFSTR("kCGWindowOwnerPID"));
                CFArrayAppendValue (uiProcess, windowownerpid);

            }
        }
        return uiProcess;
    }

Just compare the processid you have against the array items to get the desired result.