I think it’ll let you drag it anywhere as long as the mouse event can reach the background. Probably you’ve changed the components inside so that they’re getting in the way of the mouse clicks now?
Absolutely! Since I “componented” over the background I cannot move window.
So, It rules for me now, but I stay curious for knowing if it’s safety and easy to makle components transparent with mouse, in order to touch the background through a component (or give the illusion of it…)
Well, no, it won’t work for that. To do something like that you’d need to make the window attach mouselisteners in cunning ways to detect drags on subcomponents. I’ve never tried doing anything like that but imagine that it could be a can of worms - you’d need to be very careful about which events you intercept.