Create an application ChangeBallColor that displays a panel. This panel will contain two buttons (one for red and one for blue). It will also display a filled in circle. When the user clicks on a button, the circle should change to that color. So

支持Delphi和C++Builder开发环境。FlexGraphics Lib能够用于创建地区图、绘制、电子线路、原理和记忆的图表，以及创建带有高级说明的交互式的面板，如设备、建筑物等等。此外，在运行时，开发者还能通过ID或名字够完全控制以及访问所有的对象。每个对象能够指明，用户定义域和值以及通用或多行提示，并能够保存在文档体中。-Support for Delphi and C++ Builder development environment. FlexGraphics Lib can b

写了一个磁罗盘的java版界面，用于画一个可以实时显示的仪表盘-Write a java version of the magnetic compass interface can be used to draw a real-time display of the instrument panel

4-wire resistive touch panel driver