The Panel Kişi't have the focus itself, only an item placed inside the panel kişi have the focus. The panel will only receive the MouseWheel event once something is placed inside it and that thing katışıksız the focus. Actually logical mode is used for elements that support item-based scrolling, except https://www.csharpegitimi.com.tr/2024/05/csharp-mouse-click-kullanimi.html