vb_opc_tread
代码说明：
用vb写的一个opc的客户端控件，用于工控组态中的趋势图(Using vb to write a opc client control, industrial control configuration for the trend)
文件列表：
支持opc的趋势图控件
...................\dlgAbout.frm
...................\dlgAbout.frx
...................\Form1.frm
...................\MSSCCPRJ.SCC
...................\OPCGeneral.pag
...................\OPCTrend.vbg
...................\OPCTrend.vbp
...................\OPCTrend.vbw
...................\OPCTrend_TGGeneral.pag
...................\Project1.exe
...................\TestTrendGraph.vbp
...................\TestTrendGraph.vbw
...................\TestTrendGraph_Form1.frm
...................\TestTrendGraph_Form1.log
...................\TrendGraph.ctl
...................\TrendGraph.ctx
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