X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/93b87dd910cadc9d20b4a5b2a17e1bee5e60e2bc..ab67e8874db324fab5223cc8d5dff8a8de3e2b77:/include/wx/sizer.h

diff --git a/include/wx/sizer.h b/include/wx/sizer.h
index ff462469b2..7e01ff8ad9 100644
--- a/include/wx/sizer.h
+++ b/include/wx/sizer.h
@@ -125,6 +125,10 @@ public:
 
     wxSizerFlags& Border(int direction, int borderInPixels)
     {
+        wxCHECK_MSG( !(direction & ~wxALL), *this,
+                     wxS("direction must be a combination of wxDirection ")
+                     wxS("enum values.") );
+
         m_flags &= ~wxALL;
         m_flags |= direction;