Allow marking wxTreeBook nodes to expand initially in XRC.

[wxWidgets.git] / docs / doxygen / overviews / changes_since28.h

diff --git a/docs/doxygen/overviews/changes_since28.h b/docs/doxygen/overviews/changes_since28.h
index f7dc4dffb25fa28689f5f8e72a70a03d606918a6..8ec1c9fc1e467464e7e057cb6d1490bfc4684b3f 100644 (file)
--- a/docs/doxygen/overviews/changes_since28.h
+++ b/docs/doxygen/overviews/changes_since28.h
@@ -4,7 +4,7 @@
 // Author:      Vadim Zeitlin
 // Created:     2008-05-08
 // RCS-ID:      $Id$
-// Licence:     wxWindows license
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 /**
@@ -61,6 +61,24 @@ to use, e.g.:
     OpenLogFile(s.mb_str());    // OK: always calls narrow string overload
     OpenLogFile(s.wc_str());    // OK: always calls wide string overload
 @endcode
+A common example of such problem arises with @c std::fstream class constructor
+in Microsoft Visual C++ standard library implementation. In addition to a
+constructor from @c const @c char * which this class must have, it also
+provides a constructor taking a wide character file name. Because of this, code
+like the following
+@code
+    #include <fstream>
+
+    void MyFunc(const wxString& filename)
+    {
+        std::ifstream ifs(filename.c_str());
+        ...
+    }
+@endcode
+does not compile when using Microsoft Visual C++ and needs to be changed to use
+mb_str() (which will not work for file names containing Unicode characters,
+consider using wxWidgets classes and functions to work with such file names as
+they are not supported by standard C++ library).
 
 The other class of incompatible changes is due to modifying some virtual
 methods to use @c wxString parameters instead of @c const @c wxChar* ones to
@@ -158,5 +176,11 @@ Finally, a few structure fields, notable @c wxCmdLineEntryDesc::shortName,
   wxScrolled<T>::GetSizeAvailableForScrollTarget() method to compute the size
   available for the scroll target as function of the main window size, please
   see the documentation of this method for more details.
+
+- Signatures of wxDataViewCustomRenderer::Activate(),
+  wxDataViewCustomRenderer::LeftClick() and
+  wxDataViewCustomRenderer::StartDrag() virtual methods changed.  You will need
+  to change them in your derived renderer class too if you override them.
+
 */