diff --git a/src/osgViewer/Viewer.cpp b/src/osgViewer/Viewer.cpp
index 7908e7460..0eb63c586 100644
--- a/src/osgViewer/Viewer.cpp
+++ b/src/osgViewer/Viewer.cpp
@@ -33,6 +33,7 @@
 #include <osgViewer/config/SphericalDisplay>
 #include <osgViewer/config/PanoramicSphericalDisplay>
 #include <osgViewer/config/WoWVxDisplay>
+#include <osgViewer/config/SingleWindow>
 
 #include <osg/EnvVar>
 
@@ -63,6 +64,7 @@ Viewer::Viewer(osg::ArgumentParser& arguments)
     arguments.getApplicationUsage()->addCommandLineOption("--clear-color <color>","Set the background color of the viewer in the form \"r,g,b[,a]\".");
     arguments.getApplicationUsage()->addCommandLineOption("--screen <num>","Set the screen to use when multiple screens are present.");
     arguments.getApplicationUsage()->addCommandLineOption("--window <x y w h>","Set the position (x,y) and size (w,h) of the viewer window.");
+    arguments.getApplicationUsage()->addCommandLineOption("--borderless-window <x y w h>","Set the position (x,y) and size (w,h) of a borderless viewer window.");
 
     arguments.getApplicationUsage()->addCommandLineOption("--run-on-demand","Set the run methods frame rate management to only rendering frames when required.");
     arguments.getApplicationUsage()->addCommandLineOption("--run-continuous","Set the run methods frame rate management to rendering frames continuously.");
@@ -136,7 +138,14 @@ Viewer::Viewer(osg::ArgumentParser& arguments)
     bool ss3d = false;
     bool wowvx20 = false;
     bool wowvx42 = false;
-    if ((wowvx20=arguments.read("--wowvx-20")) || (wowvx42=arguments.read("--wowvx-42")) || arguments.read("--wowvx"))
+
+    if (arguments.read("--borderless-window",x,y,width,height))
+    {
+        osg::ref_ptr<osgViewer::SingleWindow> sw = new osgViewer::SingleWindow(x, y, width, height, screenNum);
+        sw->setWindowDecoration(false);
+        apply(sw.get());
+    }
+    else if ((wowvx20=arguments.read("--wowvx-20")) || (wowvx42=arguments.read("--wowvx-42")) || arguments.read("--wowvx"))
     {
         osg::ref_ptr<WoWVxDisplay> wow = new WoWVxDisplay;
 
@@ -510,7 +519,13 @@ void Viewer::realize()
             int x = -1, y = -1, width = -1, height = -1;
             osg::getEnvVar("OSG_WINDOW", x, y, width, height);
 
-            if (width>0 && height>0)
+            if (osg::getEnvVar("OSG_BORDERLESS_WINDOW", x, y, width, height))
+            {
+                osg::ref_ptr<osgViewer::SingleWindow> sw = new osgViewer::SingleWindow(x, y, width, height, screenNum);
+                sw->setWindowDecoration(false);
+                apply(sw.get());
+            }
+            else if (width>0 && height>0)
             {
                 if (screenNum>=0) setUpViewInWindow(x, y, width, height, screenNum);
                 else setUpViewInWindow(x,y,width,height);