方位投影的坐标转换，既可单点计算，也可批量计算，转换的结果既用列表显示，用可以用文件保存，同时还可以打开查看...

一个基于对话框的应用程序，有20几个颜色不同形状各异的按钮。值得下载！-a dialog-based applications, several are 20 different colors of different shapes button. Worth downloading!

在按钮上贴上位图，使按钮变得更漂亮。-posted in the upper map button, the button becomes more beautiful.

一个可以用来可以作为仪表开关的控件（旋转开关）- May use for to be allowed to control as the meter switch (turn switch)

在delphi7.0中经常会因为没有通信控件而弄得很麻烦，SPCOMM是DELPHI7.0中较为实用的通讯控件-in delphi7.0 often because of the absence of communication control, and most of a lot of trouble, SPCOMM DELPHI7.0 is the more practical Communication Control

vector control file convert three phase to two phase and control asychronous engine

本程序实现了分形图形的显示，根据代码，可以研究绘制分形图形的方法。-realized by the fractal graphics, based code can study fractal graphics rendering method.

实现如何重绘DialogBar和Bar上的控件 背景色-realize how refresh DialogBar Bar and the background color controls

获取ip地址,控件，只需点击即可获取ip地址，简单易操作！-To obtain ip address, control, simply click away to obtain ip address, easy to operate!

可以模拟交通红绿灯效果，很好用的一个类；可以模拟交通红绿灯效果，很好用的一个类-Can simulate the effect of traffic lights, with a very good category can simulate the effect of traffic lights, very good use of a class

计算机图形学的圆形虚线算法的源程序，对于本学科的初学者很有帮助-computer graphics algorithms dotted round the source, the subject of helpful beginners