Xcode IB Window Problem

Question

Hello,
im new to Xcode and have (i think) a simple question. I want to open a new window by pressing a simple push button. I know how to do that. My problem is, that i want to bind it to a condition. When i press a button, there should be a check: for example if textfield 1 = "test123" and textfield 2 = password, then open window x.
So im just missing the command for opening a window

Answer 1

This is for iOS but the idea should be similar for OS X:
.h
@interface myViewController : UIViewController <UITextFieldDelegate>
    UITextField *aTextField;
-(void)buttonPressed;
@property (nonatomic, retain) UITextField *state;
.m
@implementation myViewController
@synthesize aTextField;
-(void)loadView
    UIView *view = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"An Image.png"]];
    self.view = view;
    [view release];
    self.view.frame = CGRectMake(114, 212, 540, 620);
    aTextField = [[UITextField alloc] initWithFrame:CGRectMake(70, 230, 80, 22)];
   [self.view addSubview:aTextField];
   self.view.userInteractionEnabled = YES;