Aleab.LoopbackAudioVisualizer.WinAPI.Shell32.SHAppBarMessage C# (CSharp) Method

        public static extern IntPtr SHAppBarMessage(AppBarMessage dwMessage, [In] ref APPBARDATA pData);
    }

        public Taskbar()
        {
            IntPtr taskbarHandle = User32.FindWindow(ClassName, null);

            APPBARDATA data = new APPBARDATA
            {
                cbSize = (uint)Marshal.SizeOf(typeof(APPBARDATA)),
                hWnd   = taskbarHandle
            };
            IntPtr result = Shell32.SHAppBarMessage(AppBarMessage.GetTaskbarPos, ref data);

            if (result == IntPtr.Zero)
            {
                throw new InvalidOperationException();
            }

            this.Position = (TaskbarPosition)data.uEdge;
            this.Bounds   = Rectangle.FromLTRB(data.rc.left, data.rc.top, data.rc.right, data.rc.bottom);

            data.cbSize = (uint)Marshal.SizeOf(typeof(APPBARDATA));
            result      = Shell32.SHAppBarMessage(AppBarMessage.GetState, ref data);
            int state = result.ToInt32();

            this.AlwaysOnTop = (state & AppBarState.AlwaysOnTop) == AppBarState.AlwaysOnTop;
            this.AutoHide    = (state & AppBarState.Autohide) == AppBarState.Autohide;
        }