+ There are several different types of tools you can add to a toolbar.
+ These types are controlled by the ::wxItemKind enumeration.
+
+ Note that many methods in wxToolBar such as wxToolBar::AddTool return a
+ @c wxToolBarToolBase* object.
+ This should be regarded as an opaque handle representing the newly added
+ toolbar item, providing access to its id and position within the toolbar.
+ Changes to the item's state should be made through calls to wxToolBar methods,
+ for example wxToolBar::EnableTool.
+ Calls to @c wxToolBarToolBase methods (undocumented by purpose) will not change
+ the visible state of the item within the the tool bar.