AlumniGuillaume,
The HwndSource:FMConnexion object corresponds to the window that is used to display the contents of a WPF form. The FMConnexion object is a WPF object, it does not have a window in terms of the operating system. However, since TestComplete supports WPF applications, it should be able to highlight this object on the screen. The situation looks strange, and at the moment, I cannot say what causes the problem.
As far as I know, TestComplete can highlight only those objects whose Visible property is true. So, make sure that the tested form is visible on the screen, then look at the FMConnexion object in the Object Browser and check its Visible property. What value does it have, true or false?
