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copied!<p>I'm not an authority on Growl, but I have a pretty good hunch: When the Growl app is installed, a one-shot notification like this has a prayer to work, because the running app has a run loop and can drive UI from it. In the example you have here, there's no run loop, so there's no way for this one-shot app to ever draw any notifications -- it's dead before it even has a chance. I would guess if you made a boilerplate Cocoa app, and then called <code>showGrowlMessage</code> from <code>applicationDidFinishLaunching:</code>, but before you terminated/quit the app, I bet it would work. At the very least you should give that a try.</p> <p>EDIT: If you create a new Cocoa non-document application, and add the following methods to the appDelegate class, it will successfully display a notification using the Mist (i.e. in-app) Growl.</p> <pre><code>@implementation SOAppDelegate @synthesize window = _window; - (void)showGrowlMessageTitled: (NSString*)title description:(NSString*) desc { NSLog(@"[Growl] showGrowlMessage() called."); NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; [GrowlApplicationBridge notifyWithTitle: title description: desc notificationName: @"Upload" iconData: nil priority: 0 isSticky: NO clickContext: nil]; [pool drain]; } - (void)applicationDidFinishLaunching:(NSNotification *)aNotification { [GrowlApplicationBridge setGrowlDelegate: (NSObject<GrowlApplicationBridgeDelegate>*)self]; [self showGrowlMessageTitled: @"Foo" description: @"Bar"]; } - (NSDictionary *) registrationDictionaryForGrowl { return [NSDictionary dictionaryWithObjectsAndKeys: [NSArray arrayWithObject: @"Upload"], GROWL_NOTIFICATIONS_ALL, [NSArray arrayWithObject: @"Upload"], GROWL_NOTIFICATIONS_DEFAULT, nil]; } @end </code></pre> <p>So, in short, the problem with the original code was not only the runLoop problem, but that it was not passing a real delegate (i.e. object that implements the delegate methods described in the headers as required) to the GrowlApplicationBridge (it passes an empty string). You definitely still need a runLoop, but that's not all -- there's additional, non-optional setup for using this framework.</p>

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