2. wxNotebook event now derives from it under wxGTK too - fixing the
PAGE_CHANGING event handling bug
3. the controls sample demonstrates PAGE_CHANGING in action
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2562 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
types in wxCHECK_MSG); compiles again for 16-bit Windows, though dialogs don't work;
added generic notebook implementation (copied from wxMotif); fixed event handler
arg in wxDirDialog; added preliminary wxImage reference; removed some constructors from documentation; fixed wxIniConfig compilation
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1247 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
