At present, the Visual Basic (hereinafter referred to as VB) has become the main language WINDOWS system development, with its high efficiency, easy to operate and powerful features for the program design more and more personnel and user place favour. VB support object-oriented program design, have structured event-driven programming model and can use unlimited expansion of the control. In VB application It can call WINDOWS API functions, makes programming improving efficiency, application functions strengthened. Provide these functions with VB, can we have three methods to complete serial interface communication. With VB to provide with strong function of the communication control Another way is to call WINDOWS API functions, using the WINDOWS of written communication function provide portability strong applications The third is to use file input/output finish, this method is simple, convenient and feasible, but there are some limitations.

VB串口通信.doc

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