DragDrop.PreviewQueryContinueDrag Attached Event
Occurs when there is a change in the keyboard or mouse button states during a drag-and-drop operation, and enables the drop source to cancel the drag-and-drop operation depending on the key/button states.
Assembly: PresentationCore (in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2