MFC OpenCV.cpp

void CHowOldDlg::OnBnClickedButton1()
{
	cv::Mat img = cv::imread("res/Test.jpeg");
	CDC *pDC = GetDlgItem(IDC_Pic)->GetDC();
	HDC hDC = pDC->GetSafeHdc();
	CRect rect;
	GetDlgItem(IDC_Pic)->GetClientRect(&rect);
	int rw = rect.right - rect.left;     //the width of your picture control
	int rh = rect.bottom - rect.top;
	if (!img.data){
		MessageBox(_T("read picture fail！"));
		cout << GetTime() << " [Error] " << "read picture fail!" << endl;
		return;
	}
	cv::resize(img, img, cv::Size(rw, rh));
	IplImage iplimg = img;
	m_CVvImageObj.CopyOf(&iplimg);
	UpdateData();
	if (m_CVvImageObj.GetImage()){
		m_CVvImageObj.Show(pDC->GetSafeHdc(), 0, 0, rw, rh);
	}
}