* wxMemoryStreams updates

* Various fixes about wxGTK and Unicode
* Various fixes in wxStreams


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3010 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk1/choicdlg.cpp

@@ -138,7 +138,7 @@ wxChar *wxGetSingleChoiceData( const wxString& message, const wxString& caption,
 {
     wxSingleChoiceDialog dialog(parent, message, caption, n, choices, client_data);
     if ( dialog.ShowModal() == wxID_OK )
-        return dialog.GetSelectionClientData();
+        return (wxChar *)dialog.GetSelectionClientData();
     else
         return NULL;
 }

src/gtk1/menu.cpp

@@ -212,10 +212,13 @@ void wxMenuBar::Append( wxMenu *menu, const wxString &title )
 
     /* local buffer in multibyte form */
     wxString buf;
-    buf << '/' << str.mb_str();
+    buf << _T('/') << str.c_str();
+
     char *cbuf = new char[buf.Length()];
+    strcpy(cbuf, buf.mbc_str());
+
     GtkItemFactoryEntry entry;
-    entry.path = (gchar *)buf.c_str();  // const_cast
+    entry.path = (gchar *)cbuf;  // const_cast
     entry.accelerator = (gchar*) NULL;
     entry.callback = (GtkItemFactoryCallback) NULL;
     entry.callback_action = 0;

src/gtk1/textctrl.cpp

@@ -390,7 +390,7 @@ void wxTextCtrl::AppendText( const wxString &text )
                               m_font.GetInternalFont(),
                               m_foregroundColour.GetColor(),
                               m_backgroundColour.GetColor(),
-                              text, text.length());
+                              text.mbc_str(), text.length());
 
         }
         else