changed/centralized window creation code to allow wxTLW work in wxUniv

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11880 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/winundef.h

@@ -25,6 +25,24 @@
 // elsewhere because the functions, unlike the macros, respect the scope.
 // ----------------------------------------------------------------------------
 
+// CreateDialog
+
+#ifdef CreateDialog
+    #undef CreateDialog
+
+    inline HWND CreateDialog(HINSTANCE hInstance,
+                             LPCTSTR pTemplate,
+                             HWND hwndParent,
+                             DLGPROC pDlgProc)
+    {
+        #ifdef _UNICODE
+            return CreateDialogW(hInstance, pTemplate, hwndParent, pDlgProc);
+        #else
+            return CreateDialogA(hInstance, pTemplate, hwndParent, pDlgProc);
+        #endif
+    }
+#endif
+
 // GetCharWidth
 
 #ifdef GetCharWidth