https://learn.microsoft.com/de-de/dotnet/api/system.windows.forms.systeminformation.mousewheelscrolllines?view=netframework-4.8.1&viewFallbackFrom=windowsdesktop-10.0
SystemInformation.MouseWheelScrollLines Property (System.Windows.Forms) | Microsoft Learn
Gets the number of lines to scroll when the mouse wheel is rotated.
property systemwindows formsmicrosoftlearn