# control::ConstBool

    sys::Obj
      sys::Virtual
        sys::Component
          control::ConstBool

`public class ConstBool` `[niagaraIcon="module://icons/x16/control/booleanPoint.png"]`

ConstBool: boolean constant

       out should never be a link destination.

out

  `public property bool out [summary, config]`

  out value is set by actions

setFalse

  `public action void setFalse()`

  action to set out to false

setNull

  `public action void setNull()`

  action to set out to null

setTrue

  `public action void setTrue()`

  action to set out to true