Minor fixes for crashes under wxMotif when setting attributes before the grid has been first painted. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5920 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Minor fixes for crashes under wxMotif when setting attributes before the grid has been first painted. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5920 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775