Object-oriented Windows Message Handling Mechanism And Its Application In The Pos

With computer technology, multimedia and network technology and the rapid development of the Internet and multimedia technology in the wide field of commercial applications. That construct of a modern commercial sales of a new environment - POS machine network marketing environment. Sales of computer networks as the traditional sales model added that sales suffered from the traditional constraints of time and space, so that resources are more fully commercial use, has become the modern business system in a popular marketing model of network-based environment for the sale of goods modalities and means of achieving in the business community and has caused more and more attention.POS System now becomes a mainstream part of a sales network. In this paper, WINDOWS communication mechanism for a POS software, communications systems research and development.Based on the general needs of the distribution system and is aimed at the sales of POS features WINDWOS Construction of a communication mechanism based on the multi-media advertising system with the sale of POS systems, and use a variety of technologies in the system design and implementation, on the one involved in a series of key technology for detail.POS machines multimedia advertising sales network communication system is in the pipeline to the main means of communication, involving the main server communication module in the database module, modules and network file transfer and server-to-end system control function modules, providing a salespersons-centric, client and server interaction platform for the sale of the entire system of space-based services platform, and thus enhance the sale of land sales activities flexibility and initiative at the same time the whole system can be commercially through telephone lines or Internet connectivity, and better for business services, with the expansion of a good performance.POS-system sales in the various modules are used mature technologies to design, the main screen of the window module through the use of communications between the trough means to resolve the Post, a process of communication through SENDMESSAGE to carry out, the main source flexibility in the use of the WM_COPYDATA to the data transmission and network transmission module communication is through the pipeline to carry out technology, which also include the client and server data transmission between; POS machines used advertising system module MFC programming, in System there are a four - a media player module and a media settings of the modules XML document literacy, and sales are subject to the same main program POS monitor program monitoring.In this paper, POS systems and advertising sales system described in detail, and also presented the final part of the implementation of the two main classes and outline communication process.