A convenient message window.
GtkMessageDialog presents a dialog with an image
representing the type of message (Error, Question, etc.) alongside some
message text. It's simply a convenience widget; you could construct the
equivalent of GtkMessageDialog from
GtkDialog without too much effort,
but GtkMessageDialog saves typing.
The easiest way to do a modal message dialog is to use
run() , though you can also pass in the
run() automatically makes the dialog
modal and waits for the user to respond to it. run() returns when any dialog button is clicked
or the dialog is closed.
Creates a new message dialog.
The image icon widget.
The label containing the text.