Gets the widget that is currenty set as the image of button. This may have been explicitly set by gtk.button.Button.setImage or constructed by gtk.button.Button.newFromStock.
a #GtkWidget or null in case there is no image
Gets the widget that is currenty set as the image of button. This may have been explicitly set by gtk.button.Button.setImage or constructed by gtk.button.Button.newFromStock.