/// <summary>Specifies an image list that contains button images for a toolbar embedded in a thumbnail image of a window in a taskbar button flyout.</summary> /// <param name="parent">The window whose thumbnail representation contains the toolbar to be updated. This window must belong to the calling process.</param> /// <param name="imageList">The image list that contains all button images to be used in the toolbar.</param> public static void ThumbBarSetImageList(IWin32Window parent, ImageList imageList) { Validate7OrLater(); if (parent == null) { throw new ArgumentNullException(nameof(parent)); } if (imageList == null) { throw new ArgumentNullException(nameof(imageList)); } taskbar4?.ThumbBarSetImageList(parent.Handle, imageList.Handle); }