Applied patch [ 1845819 ] wxMSW Top level window freeze fix for trunk

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@50681 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/toplevel.h

@@ -75,6 +75,12 @@ public:
     virtual bool SetTransparent(wxByte alpha);
     virtual bool CanSetTransparent();
 
+    //Top level windows have different freeze semantics on Windows
+    virtual void Freeze();
+    virtual void Thaw();
+
+    virtual void AddChild( wxWindowBase *child );
+
 
     // implementation from now on
     // --------------------------

include/wx/msw/window.h

@@ -555,8 +555,7 @@ private:
     bool HandleNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
 
 
-    // number of calls to Freeze() minus number of calls to Thaw()
-    unsigned int m_frozenness;
+    
 
     // current defer window position operation handle (may be NULL)
     WXHANDLE m_hDWP;
@@ -568,6 +567,10 @@ protected:
     wxPoint     m_pendingPosition;
     wxSize      m_pendingSize;
 
+    // number of calls to Freeze() minus number of calls to Thaw()
+    // protected so that wxTopLevelWindowMSW can access it
+    unsigned int m_frozenness;
+
 private:
 #ifdef __POCKETPC__
     bool        m_contextMenuEnabled;