GUICtrlCreateDate with blank Default value

[Jewtus]

If you use the command

GUICtrlCreateDate("",89, 280, 201, 21)

it creates a date box and defaults to today's date. Is there a way to make it so the default value is actually blank? I've already tried putting in Null, default, 0, and "0" but it doesn't seem to blank out the date.

I did find this:

GUICtrlCreateDate("",89, 280, 201, 21, 0x02)

will create a checkbox inside the date that can be unselected to blank out the box, but I want the box to be default disabled unless a date is selected.

Any ideas?