.\"Copyright 2010 (c) EPFL
.TH XDF_GET_CHANNEL 3 2010 "EPFL" "xdffileio library manual"
.SH NAME
xdf_get_channel - Get the channel descriptor handle of a particular index
.SH SYNOPSIS
.LP
.B #include <xdfio.h>
.sp
.BI "struct xdfch* xdf_get_channel(const struct xdf* " xdf ","
.br
.BI "                              unsigned int " index ");"
.br
.SH DESCRIPTION
.LP
\fBxdf_get_channel\fP() gets the channel descriptor of the channel stored at
index \fIindex\fP in the XDF file referenced by the handle \fIxdf\fP.
.SH "RETURN VALUE"
.LP
\fBxdf_get_channel\fP() returns the handle to requested channel descriptor in
case of success, NULL otherwise.
.SH ERRORS
.TP
.B EINVAL
\fIxdf\fP is NULL or \fIindex\fP is bigger than the number of channel.
.SH "SEE ALSO"
.BR xdf_add_channel (3)