- if ((!driver_name.IsNull() && driver_name != "") &&
- (!device_name.IsNull() && device_name != "") &&
- (!file.IsNull() && file != ""))
+ if ((!driver_name.IsNull() && driver_name != T("")) &&
+ (!device_name.IsNull() && device_name != T("")) &&
+ (!file.IsNull() && file != T("")))