How do i display the modified dot in the red button of an NSWindow

Question

Can't find the Cocoa API call to set the modified marker of a window.

Answer 1

If you’re using the NSDocument architecture it should happen automatically.

If not, and you’re using NSWindowController, you should use its setDocumentEdited: method.

If you’re not using a window controller, use NSWindow’s setDocumentEdited: method.