Fixed wxTextCtrl::SetMaxLength for rich edit controls

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@28565 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -216,6 +216,7 @@ wxMSW:
 - wxLongLong formatting with MinGW corrected
 - wxFileDialog now returns correct filter index for multiple-file dialogs
 - Fixed a bug in wxSpinCtrl::DoGetBestSize that would make wxSpinCtrl too tall
+- Fixed wxTextCtrl::SetMaxLength for rich edit controls
 
 wxGTK:
 

docs/latex/wx/text.tex

@@ -846,7 +846,7 @@ already is filled up to the maximal length, a
 (giving it the possibility to show an explanatory message, for example) and the
 extra input is discarded.
 
-Note that this function may only be used with single line text controls.
+Note that under GTK+, this function may only be used with single line text controls.
 
 \wxheading{Compatibility}
 

src/msw/textctrl.cpp

@@ -1247,6 +1247,11 @@ wxString wxTextCtrl::GetLineText(long lineNo) const
 
 void wxTextCtrl::SetMaxLength(unsigned long len)
 {
+#if wxUSE_RICHEDIT
+    if (IsRich())
+        ::SendMessage(GetHwnd(), EM_EXLIMITTEXT, 0, (LPARAM) (DWORD) len);
+    else
+#endif
     ::SendMessage(GetHwnd(), EM_LIMITTEXT, len, 0);
 }