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.TH "TIFFFIELDPASSCOUNT" "3tiff" "Nov 26, 2023" "4.6" "LibTIFF"
.SH NAME
TIFFFieldPassCount \- get whether to pass a count to TIFFGetField/TIFFSetField
.SH SYNOPSIS
.INDENT 0.0
.INDENT 3.5
.sp
.EX
#include <tiffio.h>
.EE
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B int TIFFFieldPassCount(const TIFFField *fip) 
.UNINDENT
.SH DESCRIPTION
.sp
\fI\%TIFFFieldPassCount()\fP returns true (nonzero) if
\fI\%TIFFGetField()\fP and \fI\%TIFFSetField()\fP
expect a \fBcount\fP value to be passed before the actual data pointer.
.sp
\fBfip\fP is a field information pointer previously returned by
\fI\%TIFFFindField()\fP,
\fI\%TIFFFieldWithTag()\fP,
\fI\%TIFFFieldWithName()\fP\&.
.sp
When a \fBcount\fP is required, it will be of type \fBuint32_t\fP
if \fI\%TIFFFieldReadCount()\fP reports \fBTIFF_VARIABLE2\fP,
and of type \fBuint16_t\fP otherwise.  Use \fI\%TIFFFieldWriteCount()\fP
for \fI\%TIFFSetField()\fP, respectively. (This distinction is
critical for use of \fI\%TIFFGetField()\fP, but normally not so for
use of \fI\%TIFFSetField()\fP\&.)
.sp
An alternative function for the \fBcount\fP value determination
is \fI\%TIFFFieldSetGetCountSize()\fP\&.
.SH RETURN VALUES
.sp
\fI\%TIFFFieldPassCount()\fP returns an integer that is always 1 (true)
or 0 (false).
.SH SEE ALSO
.sp
\fI\%TIFFFieldDataType\fP (3tiff),
\fI\%TIFFFieldName\fP (3tiff),
\fI\%TIFFFieldQuery\fP (3tiff),
\fI\%TIFFFieldReadCount\fP (3tiff),
\fI\%TIFFFieldTag\fP (3tiff),
\fI\%TIFFFieldWriteCount\fP (3tiff),
\fI\%libtiff\fP
.SH AUTHOR
LibTIFF contributors
.SH COPYRIGHT
1988-2023, LibTIFF contributors
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