how to retrieve a date from DateField in libreoffice dialog

I have created a dialog form in a libre office calc spreadsheet. I have a DateField for a date input which, along with other data which I can retrieve, I want to write to several different cells.
I have been able to retrieve the other data from textboxes, listboxes etc to variables ready for writing to appropriate cells. eg.

Dim sVeh As String

oCtl = oDlg.getControl(“ListBox4”)

sVeh = oCtl.getSelectedItem()

How do I retrieve an inputed date from a DateField?

I’d assume oCtl.Day, oCtl.Month and oCtl.Year or oCtl.Text would give something if you had asked for your “DateControl” instead of the “ListBox4”.
See attached file.