Using screensavers inside the Windows Media Player

using System;
using System.Runtime.InteropServices;

namespace SheepWMP.NET
{
    class Win32
    {
        [DllImport("user32.dll")]
        public static extern bool GetClientRect(IntPtr hWnd, out RECT lpRect);

        [DllImport("user32.dll", SetLastError = true)]
        public static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId);

        [DllImport("user32.dll", SetLastError = true)]
        public static extern IntPtr GetWindow(IntPtr hWnd, GetWindowCmd uCmd);

        public enum GetWindowCmd : uint
        {
            GW_HWNDFIRST = 0,
            GW_HWNDLAST = 1,
            GW_HWNDNEXT = 2,
            GW_HWNDPREV = 3,
            GW_OWNER = 4,
            GW_CHILD = 5,
            GW_ENABLEDPOPUP = 6
        }

        [DllImport("user32.dll", SetLastError = true)]
        [return: MarshalAs(UnmanagedType.Bool)]
        public static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int x, int y, int cx, int cy, uint uFlags);

        public const int SWP_ASYNCWINDOWPOS = 0x4000;
        public const int SWP_DEFERERASE = 0x2000;
        public const int SWP_DRAWFRAME = 0x0020;
        public const int SWP_FRAMECHANGED = 0x0020;
        public const int SWP_HIDEWINDOW = 0x0080;
        public const int SWP_NOACTIVATE = 0x0010;
        public const int SWP_NOCOPYBITS = 0x0100;
        public const int SWP_NOMOVE = 0x0002;
        public const int SWP_NOOWNERZORDER = 0x0200;
        public const int SWP_NOREDRAW = 0x0008;
        public const int SWP_NOREPOSITION = 0x0200;
        public const int SWP_NOSENDCHANGING = 0x0400;
        public const int SWP_NOSIZE = 0x0001;
        public const int SWP_NOZORDER = 0x0004;
        public const int SWP_SHOWWINDOW = 0x0040;

        public const int HWND_TOP = 0;
        public const int HWND_BOTTOM = 1;
        public const int HWND_TOPMOST = -1;
        public const int HWND_NOTOPMOST = -2;
    }
}