GetProcessForPID is deprecated; what to use instead?

Question

I have been using GetProcessForPID to get the ProcessSerialNumber for the running application, as in

ProcessSerialNumber psn;

int pid = [[NSProcessInfo processInfo] processIdentifier];

OSStatus error = GetProcessForPID(pid, &psn);

I then use this ProcessSerialNumber to create an event tap with CGEventTapCreateForPSN.

As of OS X 10.9, GetProcessForPID is deprecated.

What is the recommended replacement function in Cocoa or in Core Foundation?

Best,

-Michiel.

Posted on Jan 11, 2014 12:22 AM

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Answer 1

Level 8

47,126 points

NSRunningApplication?

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Answer 2

NSRunningApplication can give you the process identifier (pid), not the process serial number.

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Answer 3

Level 8

47,126 points

Maybe find out what the modern way of doing CGEventTapCreateForPSN is these days..

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Answer 4

Observe the NSWorkspaceDidLaunchApplicationNotification notification.

In the callback, get the process serial number as follows:

NSDictionary* dictionary = [notification userInfo];

NSNumber* psnLow = [dictionary valueForKey: @"NSApplicationProcessSerialNumberLow"];

NSNumber* psnHigh = [dictionary valueForKey: @"NSApplicationProcessSerialNumberHigh"];

ProcessSerialNumber psn;

psn.highLongOfPSN = [psnHigh intValue];

psn.lowLongOfPSN = [psnLow intValue];

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Answer 5

What if the process is not an application (it's a background process) and may have been running before the application we are in started?

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Answer 6

To make use of CGEventTapCreateForPSN it has to be an application.

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