1、首先在halcon通过相机助手生成以下代码

* Image Acquisition 01: Code generated by Image Acquisition 01
open_framegrabber ('DirectShow', 1, 1, 0, 0, 0, 0, 'default', 8, 'rgb', -1, 'false', 'default', '[0] U2B300C_1', 0, -1, AcqHandle)
grab_image_start (AcqHandle, -1)
while (true)
    grab_image_async (Image, AcqHandle, -1)
    * Image Acquisition 01: Do something
endwhile
close_framegrabber (AcqHandle)

        2、导出为C#语言

  private void action()
  {
    // Local iconic variables 
    HObject ho_Image=null;
    // Local control variables 
    HTuple hv_Acq