Gemalto Prox–DU - Page 45

PC/SC Guide
Prox–DU & Prox–SU
www.gemalto.com
DOC119811A Public Use Page 45/129
break;
rgscState[dwI].szReader = szRdr;
rgscState[dwI].dwCurrentState = SCARD_STATE_UNAWARE;
szRdr += lstrlen(szRdr) + 1;
}
dwRdrCount = dwI;
// If any readers are available, proceed.
if ( 0 != dwRdrCount )
{
for (;;)
{
// Look for the card.
lReturn = SCardLocateCards(hSC,
szCard,
rgscState,
dwRdrCount );
if ( SCARD_S_SUCCESS != lReturn )
{
printf("Failed SCardLocateCards\n");
exit(1);
}
// Look through the array of readers.
for ( dwI=0; dwI < dwRdrCount; dwI++)
{
if ( 0 != ( SCARD_STATE_ATRMATCH &
rgscState[dwI].dwEventState))
{
_tprintf( TEXT("Card '%s' found in reader '%s'.\n"),
szCard,
rgscState[dwI].szReader );
SCardFreeMemory( hSC,
szReaders );
return 0; // Context will be release automatically.
}
// Update the state.
rgscState[dwI].dwCurrentState = rgscState[dwI].dwEventState;
}
// Card not found yet; wait until there is a change.
lReturn = SCardGetStatusChange(hSC,