TIWCGJQDatePickerOptions.OnClose Property
Allows you to define your own event when the datepicker is closed, whether or not a date is selected. The function receives the selected date as text ('' if none) and the datepicker instance as parameters. this refers to the associated input field.
published property OnClose: TIWCGJSonFunc index 51 read GetFuncValue write SetFuncValue stored IsFuncStored;