<PackageReference Include="System.Drawing.Common" Version="10.0.3" />

System.Private.Windows.Ole.DragDropHelper<TOleServices, TDataFormat>

static class DragDropHelper<TOleServices, TDataFormat> where TOleServices : IOleServices where TDataFormat : IDataFormat<TDataFormat>
Helper class for drop targets to display the drag image while the cursor is over the target window and allows the application to specify the drag image bitmap that will be displayed during a drag-and-drop operation.
namespace System.Private.Windows.Ole { }