Qt OSX system window close button state

1
votes

Usually, when user modified document the native OSX application draw close button on system window as button with point. Which is API in qt I should call for do the same? Thank you.

1
macosqt

1 Answers

3
votes

Call the setWindowModified(true) method for your window, and its content will be marked as modified. That means:

  • In OS X the close button will be drawn with a dot inside;
  • In Windows an asterisk sign will be printed in the window title (use the [*] placeholder).

Note that this method does not provide "Really Quit?", "Discard Changes?", "Save the Changes?" or similar dialogs. If you need to show such dialog before exit, you will have to write your own.