explorer: Create desktop window hidden and only show it if it wins the race.

programs/explorer/desktop.c

@@ -302,7 +302,7 @@ void manage_desktop( WCHAR *arg )
 
     /* create the desktop window */
     hwnd = CreateWindowExW( 0, DESKTOP_CLASS_ATOM, NULL,
-                            WS_POPUP | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
+                            WS_POPUP | WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
                             GetSystemMetrics(SM_XVIRTUALSCREEN), GetSystemMetrics(SM_YVIRTUALSCREEN),
                             GetSystemMetrics(SM_CXVIRTUALSCREEN), GetSystemMetrics(SM_CYVIRTUALSCREEN),
                             0, 0, 0, NULL );
@@ -321,6 +321,7 @@ void manage_desktop( WCHAR *arg )
         SetWindowLongPtrW( hwnd, GWLP_WNDPROC, (LONG_PTR)desktop_wnd_proc );
         SendMessageW( hwnd, WM_SETICON, ICON_BIG, (LPARAM)LoadIconW( 0, MAKEINTRESOURCEW(OIC_WINLOGO)));
         if (name) set_desktop_window_title( hwnd, name );
+        ShowWindow( hwnd, SW_SHOW );
         SystemParametersInfoW( SPI_SETDESKWALLPAPER, 0, NULL, FALSE );
         ClipCursor( NULL );
         initialize_display_settings( hwnd );