Index: /trunk/include/VBox/hgcmsvc.h
===================================================================
--- /trunk/include/VBox/hgcmsvc.h	(revision 55586)
+++ /trunk/include/VBox/hgcmsvc.h	(revision 55587)
@@ -248,4 +248,14 @@
         u.pointer.size = (uint32_t)strlen(psz) + 1;
     }
+
+#ifdef ___iprt_cpp_ministring_h
+    /** Set a const string value to an HGCM parameter structure */
+    void setCppString(const RTCString &rString)
+    {
+        type = VBOX_HGCM_SVC_PARM_PTR;
+        u.pointer.addr = (void *)rString.c_str();
+        u.pointer.size = (uint32_t)rString.length() + 1;
+    }
+#endif
 
 #ifdef VBOX_TEST_HGCM_PARMS