NSWindow Programmatically (Invisible :D!!)

// main.m!!!
#import <Cocoa/Cocoa.h>
#import <Foundation/Foundation.h>
int main(int argc, char *argv[])
{
    NSRect windowRect = NSMakeRect(10.0f, 10.0f, 800.0f, 600.0f);
    NSWindow *window = [[NSWindow alloc] initWithContentRect:windowRect
                                         styleMask:( NSResizableWindowMask | NSClosableWindowMask | NSTitledWindowMask)
                                         backing:NSBackingStoreBuffered defer:NO];



    [window makeKeyAndOrderFront:nil];
    [[window frame ]
//  NSPoint x = (window.screen.frame.size.width - window.size.width) / 2;
//  NSPoint y = (window.screen.frame.size.height - window.size.height) / 2;

    // Create a rect to send to the window
//  NSRect newFrame = NSMakeRect(x, y, window.size.width, window.size.height);

    // Send message to the window to resize/relocate
//  [window setFrame:windowRect display:YES animate:NO];
    [window setTitle:@"Youssef Gamil"];
    return NSApplicationMain(argc,  (const char **) argv);
}