How to set "Rotate fill effect with shape" in Word by VBA

[VBOnly]

Gurus:
I use Word VBA routine to fill a shape with a picture file:
objShape.Fill.UserPicture FileNameString
In the Word dialog for Fill Effect for picture, two check boxes are available: Rotate fill effect with shape, and , Lock picture aspect ratio.
The question is how to set these two check boxes in VBA?

Thank,

 

[VBOnly]

Have not get any suggestion. So I will explain the problem more clearly.

In the Word, a drawing shape (e.g. rectangle) can be filled with a user specific image file. Word let you to keep aspect ratio of the picture if you click the "Lock picture aspect ratio" on the [Fill Effect] dialog box. Also if you rotate the shape, the picture will not turn if the checkbox "Rotate fill effect with shape" is unchecked.

I program a routine to fill shapes with different images according to user selection (with activedocument.shapes.addshape or equivalent, and with .Fill.UserPicture method). I need to have the fill-image rotate with the shapes, but could not figure out what method to use or property to set.

Help would be appreciated.