调用dll文件截取最前端窗口的图像

说明：  一本很不错的英文LabVIEW书籍，详细阐述了labview的设计思想和范例。(a very nice book talking about how to design a good LabVIEW program.)

通过user32.dll获取窗口句柄， 并模拟软件上的按钮操作(through user32.dll to acquire window api)

labview产生波形并显示，对波形图表的曲线控制(Labview generates waveform and displays it, and controls the curve of waveform chart)

演示了一个包含光伏、风机、储能及负荷的微电网系统仿真演示(Microgrid system demo)

Labview，数据采集例程，带子VI，(Labview, data acquisition routines, have SubVI)

使用labview实现数码管数字的显示，压缩包中包括需要安装的字体(Labview Led )

XY图做时间做X轴，Labview程序（紫薯布丁）(X, y graph time X axis)

使用labview实现了FFT的变换，此方法更为简单快捷，同时简单明了(Labview achieved using FFT transform, this method is more simple and quick, and simple)

利用NIUSRP 和LABVIEW数字通信实验平台，进行信道估计和信道均衡，实践均衡器的原型设计和性能评测。(Use LABVIEW and NIUSRP digital communications test platform for channel estimation and channel equalization, practice equalizer prototyping and performance evaluation.)

Labview基于声卡的频谱分析 声卡采集声音数据,显示其波形,通过滤波器和加窗处理进行功率谱分析(Labview based sound card spectrum analysis Sound card data collection, display its waveform, through the filter and window processing power spectrum analysis)