NSApplication without Bundle

bundlelessApplication.m

// compile using: clang -fobjc-arc -framework AppKit bundlelessApplication.m -o bundleLess

// 
// opens a NSApplication with dock icon and menu bar. NSRunningApplication will return no bundleURL for it
// 
// via http://stackoverflow.com/questions/8137538/cocoa-applications-from-the-command-line
// and http://casperbhansen.wordpress.com/2010/08/15/dev-tip-nibless-development/

#import <Foundation/Foundation.h>
#import <Cocoa/Cocoa.h>

@interface AppDelegate : NSObject 

@property (retain)	NSWindow * window;
@property (retain)	NSView * view;

@end

@implementation AppDelegate

- (id)init {
	
	if ( self = [super init] ) {
		
		// create a reference rect
		NSRect contentSize = NSMakeRect(0.0f, 0.0f, 480.0f, 320.0f);
	
		// allocate window
		self.window = [[NSWindow alloc] initWithContentRect:contentSize styleMask:NSWindowStyleMaskTitled backing:NSBackingStoreBuffered defer:YES];
		
		// allocate view
		self.view = [[NSView alloc] initWithFrame:contentSize];
	}
	return self;
}


- (void)applicationWillFinishLaunching:(NSNotification *)notification {
	
	// attach the view to the window
	[self.window setContentView:self.view];
}

- (void)applicationDidFinishLaunching:(NSNotification *)notification {
	
	// make the window visible.
	[self.window makeKeyAndOrderFront:self];
}

@end

int main(int argc, char *argv[])
{
	// create an autorelease pool
	@autoreleasepool {
		// make sure the application singleton has been instantiated
		NSApplication * application = [NSApplication sharedApplication];
		
		// instantiate our application delegate
		AppDelegate * applicationDelegate = [[AppDelegate alloc] init];
		
		// assign our delegate to the NSApplication
		[application setDelegate:applicationDelegate];
		
		ProcessSerialNumber psn = { 0, kCurrentProcess }; 
		OSStatus returnCode = TransformProcessType(& psn, kProcessTransformToForegroundApplication);

		[NSApp activateIgnoringOtherApps:YES];
		// call the run method of our application
		[application run];
			
	}
	// execution never gets here ..
	return 0;
}