WM_CAP_DRIVER_CONNECT

WM_CAP_DRIVER_CONNECT  

//ActiveX ---->OnCreate

m_pit.Create(IDD_CAM_DIALOG,this);
  CRect rc;
  this->GetClientRect(&rc);
  m_pit.m_cam.MoveWindow(&rc);
  m_pit.ShowWindow(SW_SHOW);
  pThread_Cam = AfxBeginThread((AFX_THREADPROC)CamThreadProc,this);
  CloseHandle(m_pit.pThread_Cam);

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WM_CAP_DRIVER_CONNECT

原文：http://www.cnblogs.com/dengpeng1004/p/3737233.html