【摘要】 介绍了在非实时性操作系统 Ｗｉｎｄｏｗｓ ９８环境下，用 Ｖｉｓｕａｌ Ｂａｓｉｃ ５．０开发实时数据采集程序的方法．所用的Ｆ－５１０６数据采集控制器是利用并行口（ＬＰＴＩ）采集数据，而Ｖｉｓｕａｌ Ｂａｓｉｃ ５．０并不具备直接对硬件并行 Ｉ／Ｏ口进行访问的函数．本程序利用了 ＶｉｓｕａｌＣ＋＋ ５．０设计动态连接库 ＤＬＬ（内嵌汇编语言），在 Ｖｉｓｕａｌ Ｂａｓｉｃ ５．０中通过调用 ＤＬＬ实现实时数据采集．更多还原

【Abstract】 This paper recommends a way in which we used visual Basic 5.0 to develope the Program of Realtime Data Acquisition under the nonReal-time system Windows 98. The F-5106 Data Acquisition and Control System we used to collect data takes up the parallel port (LPT1), but Visual Basic 5.0 doesn’t have the functions which visit the parallel I/O port directly, thus we faced the most difficult problem in the project. In solving this problem we used the DLL (including asm in it) to achieve the Real-time Data Acquisition which was designed using the Visual C ++ 5.0.更多还原