QueryGeo

VB与软PLC数据交换的例程，很难的的。(VB and soft PLC data exchange routines, it is difficult for the.)

Exercise 5 SSD4 Icarnegie. All documents submited

数据采集例程suju cjsuju cj据采集例程据采集例程(suju cj suju cj suju cj suju cj suju cj suju cjsuju cjsuju cjsuju cj)

使用wintab开发的例子，VB开发环境，经过验证可以(Wintab32.dll Demo in VB6 ReadMe notes ******************************************************* ******************************************************* A few notes on this before you play with it: 1) You cannot debug through much of the code! The reason for this is that the routine performs a Windows message hook for the window messages that normally go to the window. So when the user moves the mouse over a window, Windows generates all the messages and sends them to the window to respond. (examples are "MouseEnterWindow, MouseMove, MouseLeaveWindow"). Note these are different from the VB events which are similarly named but operate within VB, they are instead the actual messages Windows OS uses to respond. This is how windows does all of its GUI. Since a hook has been placed in the code, those messages go to the callback routine and thus get intercepted in the application. In debug, all code execution halts in the VB app. But windows keeps sending the messages to the cal)

一个GIS制图综合的示例程序，具有GIS软件的基本框架，可进行扩展成为完整的GIS软件。(Example of a GIS mapping program integrated with the basic framework of GIS software, can be expanded into a complete GIS software.)

usb tool for get a code of usb and serial dongles . it′s necessary run the original program to get it

说明：  vb.net编写的 家庭财务程序开发.rar 可以做课程设计用哦(vb.net prepared by the family financial development. Rar curriculum design can be done with oh)

测量平差中的坐标方位角的转换可以方便广大的测量工作者()

测试vb与PLC通讯，目前测试已经成功，但是有部分代码需要修改(test vb communacation with plc)

一个VB系统托盘提示控件程序,有需要的就下载吧。(A VB system tray prompt control procedures, there is a need to download it.)