public long f5Fun(IntPtr es) { long obj = ltf.GetJsParameter(es, 0); IntPtr exec = ltf.GetGlobalExecState(); long v = ltf.GetJsObjectAttribute(exec, obj, "a"); long xc = ltf.GetJsObjectAttribute(exec, obj, "b"); int i1 = ltf.JsValue2Int(exec, v); int i2 = ltf.JsValue2Int(exec, xc); string str = string.Format("alert('a:{0},b:{1}')", i1, i2); ltf.RunJavaScript(str); return(ltf.JsUndefined()); }