Can I specify the starting position of IFileDialog?

Question

I cannot find anything in the Microsoft documentation, so I just wonder if anyone knows if it is possible to specify the starting position for IFileDialog? In particular, I would like for the first time to open a dialog box to open it in the center of the parent window.

I do not see a direct way to do this otherwise than to somehow connect to the basic WM_* messages.

Is it possible to use something like SetWindowPos ? ( http://msdn.microsoft.com/en-us/library/windows/desktop/ms633545(v=vs.85).aspx )