diff --git a/effects.cpp b/effects.cpp
index c6873b27fa..753c7f87d3 100644
--- a/effects.cpp
+++ b/effects.cpp
@@ -560,8 +560,28 @@ KLibrary* EffectsHandlerImpl::findEffectLibrary( const QString& effectname )
     return library;
     }
 
+void EffectsHandlerImpl::toggleEffect( const QString& name )
+    {
+    assert( current_paint_screen == 0 );
+    assert( current_paint_window == 0 );
+    assert( current_draw_window == 0 );
+    assert( current_transform == 0 );
+
+    // Make sure a single effect won't be loaded multiple times
+    for(QVector< EffectPair >::const_iterator it = loaded_effects.constBegin(); it != loaded_effects.constEnd(); it++)
+        {
+        if( (*it).first == name )
+            {
+            unloadEffect( name );
+            return;
+            }
+        }
+    loadEffect( name );
+    }
+
 void EffectsHandlerImpl::loadEffect( const QString& name )
     {
+    Workspace::self()->addRepaintFull();
     assert( current_paint_screen == 0 );
     assert( current_paint_window == 0 );
     assert( current_draw_window == 0 );
@@ -617,6 +637,7 @@ void EffectsHandlerImpl::loadEffect( const QString& name )
 
 void EffectsHandlerImpl::unloadEffect( const QString& name )
     {
+    Workspace::self()->addRepaintFull();
     assert( current_paint_screen == 0 );
     assert( current_paint_window == 0 );
     assert( current_draw_window == 0 );
diff --git a/effects.h b/effects.h
index 51aec7659c..b5ecdedf72 100644
--- a/effects.h
+++ b/effects.h
@@ -101,6 +101,7 @@ class EffectsHandlerImpl : public EffectsHandler
         bool hasKeyboardGrab() const;
 
         void loadEffect( const QString& name );
+        void toggleEffect( const QString& name );
         void unloadEffect( const QString& name );
 
     protected:
diff --git a/org.kde.KWin.xml b/org.kde.KWin.xml
index dc4d4a6029..c86ce6fbee 100644
--- a/org.kde.KWin.xml
+++ b/org.kde.KWin.xml
@@ -1,7 +1,7 @@
 <!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object Introspection 1.0//EN"
 "http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd">
 <node>
-    <interface name="org.kde.KWin">
+  <interface name="org.kde.KWin">
     <method name="cascadeDesktop">
     <annotation name="org.freedesktop.DBus.Method.NoReply" value="true"/>
     </method>
@@ -23,6 +23,11 @@
     <arg name="x" type="i" direction="in"/>
     <arg name="y" type="i" direction="in"/>
     </method>
+    <method name="setDesktopLayout">
+    <arg name="orientation" type="i" direction="in"/>
+    <arg name="x" type="i" direction="in"/>
+    <arg name="y" type="i" direction="in"/>
+    </method>
     <method name="setCurrentDesktop">
     <arg name="desktop" type="i" direction="in"/>
     <arg type="b" direction="out"/>
@@ -33,6 +38,14 @@
     <method name="nextDesktop"/>
     <method name="previousDesktop"/>
     <method name="circulateDesktopApplications"/>
-    <signal name="reloadConfig"/>
+    <method name="loadEffect">
+    <arg name="name" type="s" direction="in"/>
+    </method>
+    <method name="unloadEffect">
+    <arg name="name" type="s" direction="in"/>
+    </method>
+    <method name="toggleEffect">
+    <arg name="name" type="s" direction="in"/>
+    </method>
   </interface>
 </node>
diff --git a/useractions.cpp b/useractions.cpp
index 4b98b4c4fb..de50bc27f4 100644
--- a/useractions.cpp
+++ b/useractions.cpp
@@ -700,6 +700,12 @@ void Workspace::loadEffect( const QString& name )
         static_cast<EffectsHandlerImpl*>(effects)->loadEffect( name );
     }
 
+void Workspace::toggleEffect( const QString& name )
+    {
+    if( effects )
+        static_cast<EffectsHandlerImpl*>(effects)->toggleEffect( name );
+    }
+
 void Workspace::unloadEffect( const QString& name )
     {
     if( effects )
diff --git a/workspace.h b/workspace.h
index 9047ce7a8c..5f5d3c46f3 100644
--- a/workspace.h
+++ b/workspace.h
@@ -210,6 +210,7 @@ class Workspace : public QObject, public KDecorationDefines
         void showWindowMenuAt( unsigned long id, int x, int y );
 
         void loadEffect( const QString& name );
+        void toggleEffect( const QString& name );
 
         void unloadEffect( const QString& name );