mac下borderless的window(无标题栏)如何实现

子类化NSWindow:

- (void)awakeFromNib

{

[selfsetStyleMask:NSBorderlessWindowMask];

[selfsetAcceptsMouseMovedEvents:YES];

[selfsetMovableByWindowBackground:YES];

[selfsetLevel:NSNormalWindowLevel];

[self setOpaque:NO];

[selfsetBackgroundColor:[NSColorclearColor]];

}

- (BOOL) canBecomeKeyWindow { return YES; }

- (BOOL) canBecomeMainWindow { return YES; }

- (BOOL) acceptsFirstResponder { return YES; }

- (BOOL) becomeFirstResponder { return YES; }

- (BOOL) resignFirstResponder { return YES; }