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bushanshuohuizhiboxing
- 在信号处理中,通常需要把采集信号的实时波形显示出来。 如果直接在屏幕上动态绘图的话,会出现闪烁现象,为了克服这个问题,本文采用的就是先在内存绘图,然后再拷贝到屏幕,从而实现动态绘图而不闪烁 -in signal processing, usually need to collect real-time signal waveform displayed. If directly on the screen dynamic mapping, would arise scintillation ph
getpicture
- 实现对屏幕的任一位置实时截取的功能,并可以设置截取的图片显示在界面中的位置.-screen realization of the real-time position as a function of the interception, and the setting up of interception of the pictures displayed on the interface position.
