first phase of transition to unified Unicode build:

1. changed c_str() to return wxCStrData (implicitly convertible to wxChar*)
2. added template type-safe wrappers for vararg functions
3. added wxUniChar class representing single Unicode character
4. changed wxString::operator[] and wxString::iterator to return wxUniChar


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@44865 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/window.cpp

@@ -3450,7 +3450,7 @@ bool wxWindowMSW::MSWCreate(const wxChar *wclass,
                        (
                         extendedStyle,
                         className,
-                        title ? title : m_windowName.c_str(),
+                        title ? title : (const wxChar*)m_windowName.c_str(),
                         style,
                         x, y, w, h,
                         (HWND)MSWGetParent(),