Some simple code to see if an application is running after being notified that a new application has launched.

• (void)awakeFromNib { NSNotificationCenter *notCenter; notCenter = [[NSWorkspace sharedWorkspace] notificationCenter]; [notCenter addObserver:self selector:@selector(iTunesOn) name:nil object:nil]; }

• (void)iTunesOn { int i, status; status = 0; for (i = 0; i < [[[NSWorkspace sharedWorkspace] launchedApplications] count]; i++) { if ([[[[[NSWorkspace sharedWorkspace] launchedApplications] objectAtIndex:i] objectForKey:@”NSApplicationName”] isEqualToString:@”iTunes”]) { status = 1; } } // Do something here with the status. }

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That seems a little un-Cocoa-like. How about:

• (void)iTunesOn { int status=0; NSEnumerator *e=[[[NSWorkspace sharedWorkspace] launchedApplications] objectEnumerator]; id *cur; while (cur=[e nextObject]) { if (cur objectForKey:@”[[NSApplicationName”] isEqualToString:@”iTunes”]) { status=1; } } //Do something here with the status }

Saves 2 lines of code too!

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If you can use a system with reasonable KVC (might require 10.3, I forget), then do this:

• (BOOL)iTunesOn { return [[[[NSWorkspace sharedWorkspace] launchedApplications] valueForKey:@”NSApplicationName”] containsObject:@”iTunes”]; }

I am tremendously incompetent. It took me four or five edits just to get the quotes on that code right. Sorry.

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Yeah, but you only have to do that once. If you observe the notification, you only have to do this from then on. –JediKnil

• (void)awakeFromNib { NSNotificationCenter *notCenter; notCenter = [[NSWorkspace sharedWorkspace] notificationCenter]; [notCenter addObserver:self selector:@selector(workspaceDidLaunchApplication:) name:NSWorkspaceDidLaunchApplicationNotification object:nil]; }

• (void)workspaceDidLaunchApplication:(NSNotification *)note { // Probably safer to use the bundle ID if ([note userInfo] objectForKey:@”[[NSApplicationBundleIdentifier”] isEqual:@”com.apple.iTunes”]) { // iTunes was activated } }