Ancestor (base) class of all edit controls in the suite with button (e.g. Combo-box, Date picker, Button-edit etc.) that is usually located on the right side of component.
Unit NxEdit6.pas (Sources)
ButtonStyle|Specifies visual style of the button (i.e. modern (flat), native or user customised.|
ButtonWidth|Specifies width of the button in points.|
ShowButton|Shows or hides the button.|
OnButtonClick|Called on mouse click on the button.|