An option field appears as a drop-down list of values from which the end user can make one selection. Only the current value is displayed. In addition to selecting the current value, the end user can click the down arrow to select another value from the drop-down list.

An option field has an inner border and an external border. The inner border is either on or off depending on the setting of the InnerShadowWidth property. If the inner shadow width is LW_NOLINE, the inner border is turned off; otherwise it is on.

The external border depends on the outline width setting. When the outline width is set to LW_MINIMUM, the external border is identical to the inner border. The exception to this is when the TextLabel property contains a string. In this case, the external border encloses the text label also.