NSPanel transform using NSAffineTransform

Question

This is a rather simple question and I'm sure it's not to hard, but the question is...

I have a NSpanel that is centered and then after the centering I need to do a transform to move the window down on the Y coordinate while maintaining the centered X coordinate.

Is NSAffineTransform the correct way to go about this and does anyone have an example or idea of what I would need to do in order to move that nspanel down. Thanks again all.

  NSRect windowFrame = NSMakeRect(0, 0, 500, 100);

    NSRect windowFrame2 = NSMakeRect(0, 100, 500, 150);

    window = [[HUDWindow alloc] initWithContentRect:windowFrame 
                                          styleMask:NSBorderlessWindowMask 
                                            backing:NSBackingStoreBuffered 
                                              defer:NO];
    [window setLevel:kCGDesktopWindowLevel + 1];

    window2 = [[Mainbox alloc] initWithContentRect:windowFrame2 
                                          styleMask:NSBorderlessWindowMask 
                                            backing:NSBackingStoreBuffered 
                                              defer:NO];
    [window2 setLevel:kCGDesktopWindowLevel + 1];
    [window center];
    [window2 center];

^ piece of code I have in my project

Answer 1

No, just reset the frame.

- (void)setFrame:(NSRect)windowFrame display:(BOOL)displayViews animate:(BOOL)performAnimation