A visual form component: checkbox with a text label. It can be in two states; <b>Checked</b> and <b>!Checked</b>. A state can be set programmatically (<b>Set_check</b>) or (if a component is not disabled) - by a user. Events <b>changed</b> and <b>click</b> allow do something on its state change. See also a definition of its ancestor <a href=Control.html>{Control}</a> and of a form: <a href=Form.html>{Form}</a>.

