图表设计好的类包，可以生成各种科学统计…

　笔者在开发县级电网调度自动化系统的过程中，碰到一个要绘制电力系统一次接线图的问题。由于电力系统一次接线图比较复杂，图上有一 些特殊的符号，象变压器符号、开关符号等等，用一般的编程方法来绘制比较困难，因此，笔者用C语言开发了一个手工绘制电力系统一次接线图 的键盘绘图程序，使用该程序绘制的一次接线图符合用户需求，效果良好。 2.使用方法 　程序中定义了几个特殊键： "Ｖ”：画笔提起 "Ｗ”：开始画图 "Ｒ”：开始擦图 "Ｓ”：当前图形存入文件 "Ｅ”：调出已有文件 "Ｃ”：画圆 　 程序一运行，屏幕上出现一个黄色的边框来设定画图的区域，区域中间出现提起的画笔符号 ，当按下”Ｗ“键时，画笔符号变为 ，此时可移动方向键（上、下、左、右、左上、左下、右上、右下）来画图；当按下”Ｒ“键时，画笔符号变为 ，此时可移动方向键来擦图；在画图过程中，按下“Ｃ”键，可画出一个半径为20个象素点的圆；当结束画图时，按下“Ｓ”键，将画好的图形存盘；按下“Ｅ”键可调出已有的图形进行编辑。-c

最近在做一个图片查看器，由于使用一般的PctureBox，在性能和缩放控制上都无法满足预期的要求，因此所有组件的呈现均是通过重写控件的OnPaint事件来绘制。在查看gif图片时发现Graphics.DrawImage只呈现第一帧，无法满足预期要求，因此经过摸索寻找到了解决自绘gif的较好办法。-At a recent picture viewer, because of the use of general PctureBox, at performance and zoom control are unable to meet expectations, all components are a rewrite control through case OnPaint to draw. Gif picture in view Graphics.DrawImage found only show the first frame, unable to meet expected requirements, therefore, after groping to find a solution since the better way to draw gif.

实现把页面的局部保存为图像，用户可以在原有基础上继续扩展-Partial realization of the page saved as images, users can continue to expand based on the original

一个GPS补点软件，用于导航测速电子狗补点，有需要的下-A GPS complement point software for navigation speed electronic dog fill point, there is a need for the next

不用JFREECHART做的饼图。可用在网页上显示。效果不是很好，不过可以用- Does not use the cake chart which JFREECHART does. May use on the homepage demonstrated. The effect is not very good, but may use

从windows系统上抓取图片-from windows system crawls Photo

关于OpenGL 3D编程，实现摄像机漫游。实现以鼠标的转向来使整个场景旋转漫游，对3D游戏编程者有很好的借鉴作用。-About OpenGL 3D programming, realize roaming camera. In order to realize the mouse turned to rotate the entire scene roaming, on the 3D game programmers have a very good reference.

自己写的双缓存例子程序，实现屏幕快速刷新无闪烁。-write their own examples of the double procedure cache to achieve the rapid refresh the screen without blinking.

可以捕获整个屏幕、活动窗口、延时捕获窗口、捕获包含标题的窗口、用户窗口、滚动窗口等,捕获的图片并可以保存为BMP、JPGE图片,可以用微软画图工具编辑,可以保存位墙纸.具有打印图片功能.这个小工具还支持多国语言(简体中文、英文)-can capture the entire screen, window activity, delay capture window, capturing the title contains the window, users window, scroll window, and capture images can be saved as BMP, stylish photographs, can be used paint tools editing, wallpaper spaces can be preserved. With Photo Print function . this small tool also supports multiple languages (English, English)

实现对AVI视频的单帧截图，也可修改为按所需帧截图，截图可保存为BMP、JPEG等常见格式-AVI video to realize the single-frame shots, but also could be modified as necessary according to frame shots, screenshots can be saved as BMP, JPEG and other common formats