Added key state tracking

Author: sadko4u

include/lsp-plug.in/tk/widgets/containers/Window.h

@@ -291,6 +291,9 @@ namespace lsp
                 // Get last surface type used
                 ws::surface_type_t      surface_type() const;
 
+                // Get active keys
+                const lltl::darray<ws::code_t> *active_keys() const;
+
             //---------------------------------------------------------------------------------
             // Event handling
             public:

src/main/widgets/containers/Window.cpp

@@ -1621,5 +1621,10 @@ namespace lsp
             return enSurfaceType;
         }
 
+        const lltl::darray<ws::code_t> *Window::active_keys() const
+        {
+            return &hKeys.vKeys;
+        }
+
     } /* namespace tk */
 } /* namespace lsp */