Impossible to click twice in an "off-screen" widget

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Create a emf diagram with some widget inside
2. Move the widget so you need to scroll to be able to click on it
3. use windows tester to click on it. (using widgetLocator) 
4. Use windows tester to click on it again (using widgetLocator)

Expected Output : The widget is clicked twice
Instead : The widget is clicked, and then, the second click is out of the 
widget. 

It seems that the click happen at the coordonates of the widget relatively to 
the visible part of the schema(after the first click), but the click is 
effectively done at these coordonate relatively to the top left corner of the 
diagram.

What version of the product are you using? On what operating system?


Please provide any additional information below.

Original issue reported on code.google.com by gm.ren...@gmail.com on 26 Mar 2013 at 9:42