diff --git a/toplevel.h b/toplevel.h
index b3f3dec0d7..04240ca4cd 100644
--- a/toplevel.h
+++ b/toplevel.h
@@ -56,6 +56,12 @@ class Toplevel
         bool isDialog() const;
         bool isSplash() const;
         bool isUtility() const;
+        bool isDropdownMenu() const;
+        bool isPopupMenu() const; // a context popup, not dropdown, not torn-off
+        bool isTooltip() const;
+        bool isNotification() const;
+        bool isComboBox() const;
+        bool isDNDIcon() const;
 
         virtual int desktop() const = 0;
         bool isOnDesktop( int d ) const;
@@ -250,6 +256,36 @@ inline bool Toplevel::isNormalWindow() const
     return windowType() == NET::Normal;
     }
 
+inline bool Toplevel::isDropdownMenu() const
+    {
+    return windowType() == NET::DropdownMenu;
+    }
+
+inline bool Toplevel::isPopupMenu() const
+    {
+    return windowType() == NET::PopupMenu;
+    }
+
+inline bool Toplevel::isTooltip() const
+    {
+    return windowType() == NET::Tooltip;
+    }
+
+inline bool Toplevel::isNotification() const
+    {
+    return windowType() == NET::Notification;
+    }
+
+inline bool Toplevel::isComboBox() const
+    {
+    return windowType() == NET::ComboBox;
+    }
+
+inline bool Toplevel::isDNDIcon() const
+    {
+    return windowType() == NET::DNDIcon;
+    }
+
 inline Pixmap Toplevel::windowPixmap( bool allow_create )
     {
     if( window_pix == None && allow_create )
diff --git a/utils.h b/utils.h
index b7114b240c..83c6aec136 100644
--- a/utils.h
+++ b/utils.h
@@ -58,7 +58,8 @@ struct XDamageNotifyEvent
 
 const int SUPPORTED_WINDOW_TYPES_MASK = NET::NormalMask | NET::DesktopMask | NET::DockMask
     | NET::ToolbarMask | NET::MenuMask | NET::DialogMask /*| NET::OverrideMask*/ | NET::TopMenuMask
-    | NET::UtilityMask | NET::SplashMask;
+    | NET::UtilityMask | NET::SplashMask | NET::DropdownMenuMask | NET::PopupMenuMask
+    | NET::TooltipMask | NET::NotificationMask | NET::ComboBoxMask | NET::DNDIconMask;
 
 const long ClientWinMask = KeyPressMask | KeyReleaseMask |
                           ButtonPressMask | ButtonReleaseMask |