Creates a new message dialog, which is a simple dialog with an icon
indicating the dialog type (error, warning, etc.) and some text the
user may want to see. When the user clicks a button a "response"
signal is emitted with response IDs from GtkResponseType. See
GtkDialog for more details.
If you have an existing Pango markup string that you want to use
literally as the label, then you need to use setMarkup() instead.
Creates a new message dialog, which is a simple dialog with an icon indicating the dialog type (error, warning, etc.) and some text the user may want to see. When the user clicks a button a "response" signal is emitted with response IDs from GtkResponseType. See GtkDialog for more details.
If you have an existing Pango markup string that you want to use literally as the label, then you need to use setMarkup() instead.