Microsoft.WindowsAPICodePack.Taskbar.TaskbarWindow.SetTitle C# (CSharp) Method

        internal void SetTitle(string title)
        {
            if (TabbedThumbnailProxyWindow == null)
            {
                throw new InvalidOperationException(LocalizedMessages.TasbarWindowProxyWindowSet);
            }
            TabbedThumbnailProxyWindow.Text = title;
        }

        private static void ThumbnailPreview_TitleChanged(object sender, EventArgs e)
        {
            var preview = sender as TabbedThumbnail;

            TaskbarWindow taskbarWindow = preview.WindowHandle == IntPtr.Zero
                ? GetTaskbarWindow(preview.WindowsControl, TaskbarProxyWindowType.TabbedThumbnail)
                : GetTaskbarWindow(preview.WindowHandle, TaskbarProxyWindowType.TabbedThumbnail);

            // Update the proxy window for the tabbed thumbnail

            taskbarWindow?.SetTitle(preview.Title);
        }