Gets the distance, in pixels, that a document has scrolled vertically.
HRESULT value = object.get_pageYOffset(* p);
The distance the document has been scrolled.
When you scroll a document vertically, some content is moved outside the view of the display area. The IHTMLWindow7::pageYOffset property returns the difference between the first pixel in the content and the first pixel currently in view.
Build date: 11/12/2012