Virtual test system based on Visual C++

At present, although most of the literatures about Virtual Instruments (VI) are based on LabVIEW, it lacks of flexibility and expansibility as a graphical development environment. In order to program a short cycle, friendly interface, easy-to-use and easy-to-repot application, the paper uses Visual C++. Net and Measurement Studio instead of LabVIEW as the platform. Measurement Studio includes a Visual C++ application wizard and a full set of C++ class libraries for creating measurement applications. Measurement Studio defines data types that simplify C++ programming for measurement applications and uses these data types across the various class libraries, from acquisition, to analysis, to visualization. Furthermore, the Measurement Studio class libraries work in combination with the proven Microsoft Foundation Class libraries so we can easily build standard Windows applications. In addition, the program adopts multithreading technique, ActiveX Data Object (ADO) database access technique and Visual C++ Extensions for ADO data binding technique to improve the speed of data acquisition and storage and reduce the complexity of data type convert.