Wpf: Fix PointToScreen/PointFromScreen in system dpi aware mode #2336
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When you call PointToScreen/PointFromScreen on a control with a location that is offset from its root visual it would return the incorrect screen coordinates by the difference of the system dpi vs. the screen's actual dpi. The ScreenSection was updated to verify the mouse position and the PointToScreen/PointFromScreen APIs when the window is dragged to another screen.