DirectShow实现相机预览和抓图
关键概念 filter filter graph filter graph manager filter interface (COM interface) filter Pin(输入输出端子)Pin Property及Pin MediaType 系统设备枚举用于选择设备 GraphEdit工具使用 Video Capture及ICaptur
关键概念 filter filter graph filter graph manager filter interface (COM interface) filter Pin(输入输出端子)Pin Property及Pin MediaType 系统设备枚举用于选择设备 GraphEdit工具使用 Video Capture及ICaptur