CGDisplayIOServicePort and SetFrontProcess deprecated on 10.9

[fatto]

Starting from Mavericks 'CGDisplayIOServicePort' and 'SetFrontProcess' are deprecated
the warnings are from:

• cocoa_monitor.m:48:42: info = IODisplayCreateInfoDictionary(CGDisplayIOServicePort(displayID)
• cocoa_window.m:823:5: SetFrontProcess(&psn);

[dmitshur]

What are the suggested replacements?

[elmindreda]

@shurcooL I think there's a replacement for SetFrontProcess in NSApplication. No idea about the other one.

[fatto]

from here seems that there's no replacement for CGDisplayIOServicePort
for SetFrontProcess there's this answer from SO that should do the work:

NSRunningApplication* app = [NSRunningApplication runningApplicationWithProcessIdentifier: PID];
[app activateWithOptions: NSApplicationActivateAllWindows];

[elmindreda]

There may not be a direct replacement for CGDisplayIOServicePort, but there must be some new way of retrieving the name of a display.

[elmindreda]

SetFrontProcess has been replaced with ec5cb9c.

[elmindreda]

• SetFrontProcess
• CGDisplayIOServicePort

[mhenr18]

You can create a matching dictionary for IO services of class "IODisplayConnect" and then use IOServiceGetMatchingServices to iterate over the services - they will map to the connected displays.

I've written an implementation (pull request #192) that then compares the product and vendor IDs between the info dictionary for each of those displays and what the CG APIs are returning for the one we're interested in - that should get things right most of the time. I'd use the serial number too but it doesn't appear to be present for all displays.

(sorry if that pull request isn't perfectly lining up with the project's coding style - I needed to implement it personally while working on some custom functionality and figured I'd share)

[elmindreda]

@mhenr18 Excellent. Will review.