C / C++ / MFC

void CIPMDlg::OnBnClickedBrefreshdevices()
{
	// TODO: Add your control notification handler code here
	int field0 = 0, field1 = 0, field2 = 0, field3 = 0;
	int c=0, nIndex=0;
	CString ips = _T("");

	for (field0 = 192; field0 <= 192; field0++)
	{
		for (field1 = 168; field1 <= 168; field1++)
		{
			for (field2 = 0; field2 <= 255; field2++)
			{
				for (field3 = 0; field3 <= 255; field3++)
				{
					ips.Format(_T("192.168.%u.%u"), field2, field3);

					nIndex = m_ctlDeviceList.InsertItem(c, ips);
					m_ctlDeviceList.SetItemText(nIndex, 1, _T("Testing"));

					c++;
				}
			}
		}

	}
}