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NSWindowController

- (id)initWithWindow:(NSWindow *)window

或者使用 - (NSString *)windowNibName

NSWindowController *controller = [[c alloc] init];

    if (_windowControllers == nil) {

        _windowControllers = [NSMutableArray new];

    }

    [_windowControllers addObject:controller];

    [controller showWindow:self];//显示Window,self 为NSWindowController

    [controller release];

注册窗口关闭通知

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowClosed:) name:NSWindowWillCloseNotification object:nil];

处理关闭窗口通知，移出不需要的Window

- (void)_windowClosed:(NSNotification *)note {

    NSWindow *window = [note object];

    for (NSWindowController *winController in _windowControllers) {

        if (winController.window == window) {

            [[winController retain] autorelease]; // Keeps the instance alive a little longer so things can unbind from it

            [_windowControllers removeObject:winController];

            break;

        }

    }

}