diff --git a/panda/src/testbed/Sources.pp b/panda/src/testbed/Sources.pp
index 1c66567465..5c938bc895 100644
--- a/panda/src/testbed/Sources.pp
+++ b/panda/src/testbed/Sources.pp
@@ -26,6 +26,15 @@
 
 #end bin_target
 
+#begin test_bin_target
+  #define TARGET open_window
+
+  #define SOURCES \
+    open_window.cxx
+
+  #define LOCAL_LIBS $[LOCAL_LIBS] pandagl pandadx
+#end test_bin_target
+
 #begin test_bin_target
   #define TARGET downloader
 
diff --git a/panda/src/testbed/open_window.cxx b/panda/src/testbed/open_window.cxx
new file mode 100644
index 0000000000..be849ff0c5
--- /dev/null
+++ b/panda/src/testbed/open_window.cxx
@@ -0,0 +1,122 @@
+// Filename: dxwindow.cxx
+// Created by:  drose (09Jan02)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://www.panda3d.org/license.txt .
+//
+// To contact the maintainers of this program write to
+// panda3d@yahoogroups.com .
+//
+////////////////////////////////////////////////////////////////////
+
+#include "glxGraphicsPipe.h"
+#include "graphicsWindow.h"
+#include "graphicsChannel.h"
+#include "graphicsLayer.h"
+#include "displayRegion.h"
+#include "camera.h"
+#include "perspectiveLens.h"
+#include "namedNode.h"
+#include "renderRelation.h"
+#include "transformTransition.h"
+#include "loader.h"
+#include "clockObject.h"
+
+// This program demonstrates creating a graphics window in Panda
+// explicitly, without using ChanCfg as an interface wrapper.
+// Normally we use ChanCfg to create the window and automatically set
+// up many of its parameters.
+
+void
+get_models(Node *root, int argc, char *argv[]) {
+  Loader loader;
+
+  for (int i = 1; i < argc; i++) {
+    Filename filename = argv[i];
+
+    cerr << "Loading " << filename << "\n";
+    PT_Node node = loader.load_sync(filename);
+    if (node == (Node *)NULL) {
+      cerr << "Unable to load " << filename << "\n";
+    } else {
+      new RenderRelation(root, node);
+    }
+  }
+}
+
+
+int
+main(int argc, char *argv[]) {
+  // First, create a GraphicsPipe.  For this we need a PipeSpecifier
+  // to specify the parameters we want to pass to the pipe.  Yeah, I
+  // know it's a weird way to pass parameters to an object.
+
+  PipeSpecifier pipe_spec;
+  PT(GraphicsPipe) pipe = new glxGraphicsPipe(pipe_spec);
+
+  // Now create a window on that pipe.
+  GraphicsWindow::Properties window_prop;
+  window_prop._xorg = 0;
+  window_prop._yorg = 0;
+  window_prop._xsize = 640;
+  window_prop._ysize = 480;
+  window_prop._title = "Window";
+  //window_prop._fullscreen = true;
+
+  PT(GraphicsWindow) window = pipe->make_window(window_prop);
+
+  // Get the first channel on the window.  This will be the only
+  // channel on non-SGI hardware.
+  PT(GraphicsChannel) channel = window->get_channel(0);
+
+  // Make a layer on the channel to hold our display region.
+  PT(GraphicsLayer) layer = channel->make_layer();
+
+  // And create a display region that covers the entire window.
+  PT(DisplayRegion) dr = layer->make_display_region();
+
+  // Finally, we need a camera to associate with the display region.
+  PT(Camera) camera = new Camera;
+  PT(Lens) lens = new PerspectiveLens;
+  lens->set_film_size(640, 480);
+  camera->set_lens(lens);
+  dr->set_camera(camera);
+
+
+  // Window setup is complete.  Now we just need to make a scene graph
+  // for the camera to render.
+  PT_Node render_top = new NamedNode("render_top");
+  camera->set_scene(render_top);
+
+  PT_Node render = new NamedNode("render");
+  NodeRelation *render_arc = new RenderRelation(render_top, render);
+
+  // Put something in the scene graph to look at.
+  get_models(render, argc, argv);
+
+  // Put the scene a distance in front of our face so we can see it.
+  LMatrix4f mat = LMatrix4f::translate_mat(0, 20, 0);
+  TransformTransition *tt = new TransformTransition(mat);
+  render_arc->set_transition(tt);
+
+
+  // This is our main update loop.  Run for 5 seconds, then shut down.
+  ClockObject *clock = ClockObject::get_global_clock();
+  clock->tick();
+  double now = clock->get_frame_time();
+  while (clock->get_frame_time() - now < 5.0) {
+    clock->tick();
+    window->get_gsg()->render_frame();
+    window->update();
+  } 
+
+  cerr << "Exiting.\n";
+  return (0);
+}