A widget that displays a check-box.
This is a very common widget, used to display a check-box; optionally with a label beside it. It is generally used to get some input from the user (just like a button). This is actually a GtkToggleButton placed next to a widget (usually next to a GtkLabel) but displays a check mark to indicate that it is in a toggled state.
A group of check buttons are usually used when you require the user to select none or more of the given options. Note that this widget behaves exactly like a GtkToggleButton.
GtkCheckButton ([string label = null [, bool use_underline = false]]);-- Creates a new check-box toggle button.