wxVListBox: add GetCurrent()/SetCurrent() accessors

interface/wx/vlbox.h

@@ -183,6 +183,23 @@ public:
     */
     bool IsCurrent(size_t item) const;
 
+    /**
+        Get the current item or @c wxNOT_FOUND if there is no
+        current item.
+
+        @since 3.2.5
+    */
+    int GetCurrent() const;
+
+    /**
+        Set the specified item as the current item, if it is wxNOT_FOUND
+        the current item is unset. The current item will be automatically
+        scrolled into view if it isn't currently visible.
+
+        @since 3.2.5
+    */
+    void SetCurrent(int current);
+
     /**
         Returns @true if this item is selected, @false otherwise.
     */