.\" $Id: TIFFFieldPassCount.3tiff,v 1.1 2012-07-29 15:45:29 tgl Exp $
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.\" Copyright (c) 2012, Tom Lane <tgl@sss.pgh.pa.us>
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.if n .po 0
.TH TIFFFieldPassCount 3TIFF "July 26, 2012" "libtiff"
.SH NAME
TIFFFieldPassCount \- Get whether to pass a count to TIFFGet/SetField
.SH SYNOPSIS
.B "#include <tiffio.h>"
.sp
.BI "int TIFFFieldPassCount(const TIFFField* " fip ")"
.SH DESCRIPTION
.BR TIFFFieldPassCount
returns true (nonzero) if
.BR TIFFGetField
and
.BR TIFFSetField
expect a
.I count
value to be passed before the actual data pointer.
.P
.I fip
is a field information pointer previously returned by
.BR TIFFFindField ,
.BR TIFFFieldWithTag ,
or
.BR TIFFFieldWithName .
.P
When a
.I count
is required, it will be of type
.BR uint32
when
.BR TIFFFieldReadCount
reports
.BR TIFF_VARIABLE2 ,
and of type
.BR uint16
otherwise.  (This distinction is critical for use of
.BR TIFFGetField ,
but normally not so for use of
.BR TIFFSetField .)
.br
.SH "RETURN VALUES"
.br
.BR TIFFFieldPassCount
returns an integer that is always 1 (true) or 0 (false).
.br
.SH "SEE ALSO"
.BR libtiff (3TIFF),
.PP
Libtiff library home page:
.BR http://www.remotesensing.org/libtiff/