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.\"Generated by db2man.xsl. Don't modify this, modify the source.
.de Sh \" Subsection
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\fB\\$1\fR
.PP
..
.de Sp \" Vertical space (when we can't use .PP)
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.de Ip \" List item
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..
.TH "SC_DETECT_CARD_PR" 3 "" "" "OpenSC API Reference"
.SH NAME
sc_detect_card_presence \- Detect presence of smart card in a reader
.SH "SYNOPSIS"
.PP
.nf
#include <opensc\&.h>
int sc_detect_card_presence(sc_reader_t *reader, int slot_id);
.fi
.SH "DESCRIPTION"
.PP
This function checks whether \fIreader\fR has a card present in\fIslot_id\fR\&.
.SH "RETURN VALUE"
.PP
If an error occurred, the return value is a a negative OpenSC error code\&. If no card is present, 0 is returned\&. Otherwise, a positive value is returned, which is a combination of flags\&. The flag SC_SLOT_CARD_PRESENT is always set\&. In addition, if the card was exchanged, the SC_SLOT_CARD_CHANGED flag is set\&.
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