NSWindow with round corners and shadow

Question

I\'m trying to crate a NSWindow without title bar (NSBorderlessWindowMask) with round corners and a shadow, similar to the below \"Welcome

Answer 1

Objective C example of @Eonil's answer:

[window setBackgroundColor:[NSColor whiteColor]];
[window setOpaque:NO];
[window setStyleMask:NSResizableWindowMask | NSTitledWindowMask | NSFullSizeContentViewWindowMask];
[window setMovableByWindowBackground:YES];
[window setTitlebarAppearsTransparent:YES];
[window setTitleVisibility:NSWindowTitleHidden];
[window setShowsToolbarButton:NO];
[window standardWindowButton:NSWindowFullScreenButton].hidden = YES;
[window standardWindowButton:NSWindowMiniaturizeButton].hidden = YES;
[window standardWindowButton:NSWindowCloseButton].hidden = YES;
[window standardWindowButton:NSWindowZoomButton].hidden = YES;
[window makeKeyWindow];