scsampledlg.cpp

SIM 卡读卡器的VC 原码

		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CSCSampleDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CSCSampleDlg::OnConnect() 
{
	DWORD	ActiveProtocol = 0;

	ProtocolType = SCARD_PROTOCOL_T0 | SCARD_PROTOCOL_T1;

	ret = SCardConnect(ContextHandle, ReaderName[act_Name], SCARD_SHARE_EXCLUSIVE, ProtocolType, &CardHandle, &ActiveProtocol);

	if (ret != SCARD_S_SUCCESS){
		GetErrorCode(ret);
		return;
	}

	ProtocolType = ActiveProtocol;

	switch (ProtocolType) {
		case SCARD_PROTOCOL_T0: 
								SetDlgItemText(IDC_OUT, "Function SCardConnect ok\nProtocoltype = T0");
								break;
		case SCARD_PROTOCOL_T1: 
								SetDlgItemText(IDC_OUT, "Function SCardConnect ok\nProtocoltype = T1");
								break;
		default:
								sprintf((char *) pOutBuffer, "Function SCardConnect ok\n%.8x", ActiveProtocol);
								SetDlgItemText(IDC_OUT, (char *) pOutBuffer);
								break;
	}

	OutBufferLine = 0;

   	(CButton *)GetDlgItem(IDC_CONNECT)->EnableWindow(FALSE);                  
   	(CButton *)GetDlgItem(IDCANCEL)->EnableWindow(FALSE);                  
   	(CButton *)GetDlgItem(IDC_CARD_DISCONNECT)->EnableWindow(TRUE);                  
  	(CButton *)GetDlgItem(IDC_TRANSMIT)->EnableWindow(TRUE);                  

}

void CSCSampleDlg::OnTransmit() 
{
	char	mhstr[MAX_INPUT];
	char	buf[MAX_INPUT/2];

	PBYTE	pInBuffer;

	memset(mhstr, 0, MAX_INPUT);

	CString	com;
	((CComboBox*)GetDlgItem(IDC_IN))->GetWindowText(com);
	sprintf(mhstr , "%s", LPCTSTR(com));
	
	if (!AToHex((char *) &mhstr, (BYTE *) &buf))  {
		return;
	}

	IO_Request.dwProtocol = ProtocolType;
	IO_Request.cbPciLength = (DWORD) sizeof(SCARD_IO_REQUEST);

	pInBuffer = (PBYTE) malloc( MAX_INPUT );
	ASSERT( pInBuffer );

	memcpy(pInBuffer, buf, InBufferLength);
	
	ResponseLength = MAX_RESPONSE;

	ret = SCardTransmit(CardHandle, &IO_Request, pInBuffer, InBufferLength, 0, pResponseBuffer, &ResponseLength);
	
	if (ret != SCARD_S_SUCCESS){
		GetErrorCode(ret);
		free(pInBuffer);
		return;
	}

	PBYTE	pStartAddress = pOutBuffer;

	for (unsigned long i=0; i<ResponseLength; i++) {
		sprintf((char *) pOutBuffer, "%.2x ",(BYTE) pResponseBuffer[i]);
		pOutBuffer += 3;
		if (i > MAX_RESPONSE-3)
			break;
	}

	pOutBuffer = pStartAddress;

	OutBufferLine = (ResponseLength * 3)/35;
	OutBufferLine++;
	if (OutBufferLine > 5) {
		((CScrollBar *)GetDlgItem(IDC_SCROLLBAR))->SetScrollRange(0, OutBufferLine, FALSE);
		line = 0;             
		((CScrollBar *)GetDlgItem(IDC_SCROLLBAR))->SetScrollPos(line, TRUE);
	}	

	SetDlgItemText(IDC_OUT, (const char *) pOutBuffer);
	
	free(pInBuffer);
}


void CSCSampleDlg::OnCardDisconnect() 
{
	ret = SCardDisconnect(CardHandle, SCARD_EJECT_CARD);

	if (ret != SCARD_S_SUCCESS){
		GetErrorCode(ret);
	}
	else
		SetDlgItemText(IDC_OUT, "Function SCardDisconnect ok");
	
   	(CButton *)GetDlgItem(IDC_CONNECT)->EnableWindow(TRUE);                  
   	(CButton *)GetDlgItem(IDCANCEL)->EnableWindow(TRUE);                  
   	(CButton *)GetDlgItem(IDC_CARD_DISCONNECT)->EnableWindow(FALSE);                  
  	(CButton *)GetDlgItem(IDC_TRANSMIT)->EnableWindow(FALSE);                  	
}

void CSCSampleDlg::OnCancel() 
{
	ret = SCardReleaseContext(ContextHandle);

	if (ret != SCARD_S_SUCCESS){
		GetErrorCode(ret);
	}

	free(pOutBuffer);
	free(pResponseBuffer);

	CDialog::OnCancel();
}

void CSCSampleDlg::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{
	switch (nSBCode) {
		case SB_LINEDOWN:   ++line;
							break;
		case SB_PAGEDOWN:   ++line;
							break;
		case SB_LINEUP:     --line;
							break;
		case SB_PAGEUP:     --line;
							break;
		case SB_THUMBPOSITION:
		case SB_THUMBTRACK:
		     				line = ((short) ResponseLength) - nPos;
							break;           
	}						
	UpdateMouseDisplay();
}

void CSCSampleDlg::UpdateMouseDisplay()
{                   
   	if (pOutBuffer != NULL)	{
   	    if (OutBufferLine > 5) {
			if (line < 0 )  {                            
   				((CScrollBar *)GetDlgItem(IDC_SCROLLBAR))->SetScrollPos(0, TRUE);
   				line = 0;
   			}	
   			else if (line > OutBufferLine)	{
   				((CScrollBar *)GetDlgItem(IDC_SCROLLBAR))->SetScrollPos(OutBufferLine, TRUE);
   				line = OutBufferLine;
   			}	
   			else {	
	   			((CScrollBar *)GetDlgItem(IDC_SCROLLBAR))->SetScrollPos(line, TRUE);
   			}
   		}		
   	    if ((OutBufferLine >= line+4) && (OutBufferLine > 5))
			SetDlgItemText(IDC_OUT, (const char *) pOutBuffer+(line*35));  
   	}
   		
	UpdateWindow();
} 

short CSCSampleDlg::AToHex(char *mhstr, BYTE *buf)
{

	InBufferLength = strlen(mhstr);                   
	if (InBufferLength < 3) {
		MessageBox("Input not complete!", "SCSample", MB_ICONSTOP);
		GetDlgItem(IDC_IN)->SetFocus();
		return(0);
	}
	for (short i=0; i<InBufferLength; i++) {
		if (mhstr[i] == '\n') {
			mhstr[i] = 0;
		}
		else if (((mhstr[i] < '0') || (mhstr[i] > '9')) &&			
				((mhstr[i] != ' ') && (mhstr[i] != ',')) &&
				((mhstr[i] < 'a') || (mhstr[i] > 'f')) && 
				((mhstr[i] < 'A') || (mhstr[i] > 'F'))) { 
			MessageBox("Only hex. input allowed!", "SCSample", MB_ICONSTOP);
			GetDlgItem(IDC_IN)->SetFocus();
			return(0);
		}	    
	}

	char *s;
	if (mhstr[1] == ',') {
		InBufferLength = (InBufferLength - 4)/2;
		s = mhstr+4;
	}
	else {
		InBufferLength = InBufferLength/2;
		s = mhstr;
	}
	memset(buf, 0, sizeof (buf));
	i = 0;

	while (isspace(*s))  s++;

	short k = FALSE;
	while (*s) {
		if (isxdigit(*s))  {
			buf[i] <<= 4;                 
			if (isalpha(*s))              
				buf[i] |= (tolower(*s) - 0x57); 
			else
				buf[i] |= (*s - 0x30);

			if (k) {
				i++; 
				k= FALSE;
			}
			else {	
				k= TRUE;
			}	
			s++;
		}
		else  break;
	}   
	return(1);
}
		

void CSCSampleDlg::GetErrorCode(long ret)
{
	switch (ret) {
		case SCARD_E_CANCELLED:
							SetDlgItemText(IDC_OUT,"The action was cancelled by an SCardCancel request.");
							break;

		case SCARD_E_CANT_DISPOSE:
							SetDlgItemText(IDC_OUT,"The system could not dispose of the media in the requested manner.");
							break;
		case SCARD_E_CARD_UNSUPPORTED:
							SetDlgItemText(IDC_OUT,"The smart card does not meet minimal requirements for support.");
							break;
		case SCARD_E_DUPLICATE_READER:
							SetDlgItemText(IDC_OUT,"The reader driver didn't produce a unique reader name.");
							break;
		case SCARD_E_INSUFFICIENT_BUFFER:
							SetDlgItemText(IDC_OUT,"The data buffer to receive returned data is too small for the returned data.");
							break;
		case SCARD_E_INVALID_ATR:
							SetDlgItemText(IDC_OUT,"An ATR obtained from the registry is not a valid ATR string.");
							break;
		case SCARD_E_INVALID_HANDLE:
							SetDlgItemText(IDC_OUT,"The supplied handle was invalid.");
							break;
		case SCARD_E_INVALID_PARAMETER:
							SetDlgItemText(IDC_OUT,"One or more of the supplied parameters could not be properly interpreted.");
							break;
		case SCARD_E_INVALID_TARGET:
							SetDlgItemText(IDC_OUT,"Registry startup information is missing or invalid.");
							break;
		case SCARD_E_INVALID_VALUE:
							SetDlgItemText(IDC_OUT,"One or more of the supplied parameters