helpme08

How to write a program the detect the input switches(SW2-0 & SW2-1) Value?
SW2-1(OFF) & SW2-0(OFF), all the LED'S light are blinking . What are the codes to fill in. Thanks for the help


#include "stdafx.h"
#include "Test8255Dll.h"
#include "Test8255DllDlg.h"
#include "decdio.h"


#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif



void CTest8255DllDlg::test8255loopback()
{

static int loop = 0;
unsigned char z1 = 0;
CString str;

if (!m_hDevice)
return;


// *****Type your code here******



// *********End your code here *********

str.Format("Loop: %3d Input Switch:%02X",loop + 1, z1);

m_display8255.SetWindowText(str);

loop++;
if(loop > 1000) loop = 0;

}