+//#define isNode(p) _isNode(p, NULL)
+
+/*!
+ * Checks if the given node is attribute node.
+ * Attribute node represents a widget, that is able to store/restore
+ * values from the model. Actually it's every widget, displayed
+ * in the XGUI_PropertyPanel, except paged containers (toolbox, switch/case).
+ */
+CONFIG_EXPORT bool isAttributeNode(xmlNodePtr theNode);
+