How do I open an NSWindow and have the window selected and in focus?

I am trying to open a NSWindow using the following code:

NSWindowController *window = [[NSWindowController alloc] initWithWindowNibName:@"MainWindow"];
[window showWindow:nil];

The window opens okay but the previous window is still the mainWindow and in focus. I have tried the following code to force the main window and it doesn't work. The window still has a disabled title bar and isn't accepting开发者_开发技巧 key events etc.

[self.window makeKeyAndOrderFront:self];
[self.window makeMainWindow];

The only way I seem to be able to get the previous window to lose focus is if I close the window after calling showWindow: with [[NSApp mainWindow] close];

Any ideas?

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makeKeyAndOrderFront: is the way to go. Are you sure that self.window and window refer the same object?

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I resolved the issue by assigning the WindowController to the nib File Owner, instead of having a separate NSWindowController object within the nib.