transient parent, or NULL for none
flags
type of message
set of buttons to use
printf()-style format string, or NULL
the message - should be null, any formatting should be done prior to call this constructor arguments for message_format
a new GtkMessageDialog
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.