wx: Add wxTreeCtrl:isTreeItemIdOk/1

Since I have replaced the wxTreeItemIdClass with integers, there
is no way to verify that it is a valid wxTreeItemId that is returned
from the wxTreeCtrl:getItem* functions.

Still the check is that is non null so beware don't construct your own id's.

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/wx/api_gen/wx_extra/bugs.h b/lib/wx/api_gen/wx_extra/bugs.h
index b8f3dfcb00..e3a4fa200b 100644
--- a/lib/wx/api_gen/wx_extra/bugs.h
+++ b/lib/wx/api_gen/wx_extra/bugs.h
@@ -34,3 +34,9 @@ class WXDLLIMPEXP_ADV wxGridCellNumberRenderer : public wxGridCellStringRenderer
    wxGridCellNumberRenderer();
 };
 
+// Enable test for valid wxTreeItemId's
+class WXDLLIMPEXP_ADV wxTreeCtrlBase : public wxControl
+{
+ public:
+    static bool IsTreeItemIdOk(wxTreeItemId id);
+}