https://learn.microsoft.com/fr-fr/dotnet/api/system.windows.uielement.previewmousemoveevent?view=netframework-4.8.1&viewFallbackFrom=windowsdesktop-8.0
UIElement.PreviewMouseMoveEvent Field (System.Windows) | Microsoft Learn
Identifies the PreviewMouseMove routed event.
field systemwindowsmicrosoftlearn