Button in Gtk

["Ajax John" <ajaxjohn gmail com>]

Hi All,

I want to know what is the difference does it make when a Button is
decleared as
GtkWidget *button;
GtkButton *button;

I'm confused which one to used in my program.
In simple words when should I declare my button as Gtkwidget * and as
GtkButton *.


Regards,
Ajax.