changing ES_LEFT/CENTER/RIGHT styles only works for plain (not rich) controls and only under XP, recreate the control in SetWindowStyleFlag() if it's a richedit one or if the system is earlier than XP

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@44021 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/textctrl.h

@@ -207,6 +207,15 @@ protected:
     // common part of all ctors
     void Init();
 
+    // creates the control of appropriate class (plain or rich edit) with the
+    // styles corresponding to m_windowStyle
+    //
+    // this is used by ctor/Create() and when we need to recreate the control
+    // later
+    bool MSWCreateText(const wxString& value,
+                       const wxPoint& pos,
+                       const wxSize& size);
+
     virtual void DoSetValue(const wxString &value, int flags = 0);
 
     // return true if this control has a user-set limit on amount of text (i.e.