constants VisibleEnum
The VisibleEnum type specifies whether the component displays the object. The AllowSpin, AllowCheckBox property specifies whether the control's label display the spin or a check-box. The VisibleEnum type supports the following values:

exHidden0 The object is hidden.
exVisible-1 The object is always visible.
exVisibleOnFocus1 The object is visible while the control gets the focus.