## Check Box

A check box widget which is able to read/write 0/1 to a single bit or the whole PV if `Bit` property is -1.

### Special Properties

- Bit (bit)
    Which bit of the PV value to read and write. If this is -1 or any negative number, it will read non-zero value as true and zero as false and it will write value 0/1 to the whole PV value.
- Auto Size (auto_size)
    Automatically adjust the size of the widget.
- Label (label)
    The text on the label.

### See Also

- Properties Common to PV Widgets
- Properties Common to All Widgets