I Don’t advise you to enable smooth zoom : it consumes a lot of CPU time and does derece significantly enhance user experience more than linear zoom (the default value). If you still want to enable it use the MouseWheel.ZoomSmoothing attached property. This event occurs when an object is dragged https://www.csharpegitimi.com.tr/2024/05/csharp-mouse-click-kullanimi.html