Some more demo tweaks

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@25935 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/demo/ContextHelp.py

@@ -89,8 +89,17 @@ class TestPanel(wx.Panel):
 #----------------------------------------------------------------------
 
 def runTest(frame, nb, log):
-    win = TestPanel(nb, log)
-    return win
+    if wx.Platform == "__WXMAC__":
+        dlg = wx.MessageDialog(
+                frame, 'The ContextHelp sample does not currently work well on this platform.',
+                'Sorry', wx.OK | wx.ICON_INFORMATION
+                )
+        dlg.ShowModal()
+        dlg.Destroy()
+        
+    else:
+        win = TestPanel(nb, log)
+        return win
 
 
 #----------------------------------------------------------------------