TIFFFieldWriteCount(3TIFF) TIFFFieldWriteCount(3TIFF)
NAME
TIFFFieldWriteCount - Get number of values to be written to field
SYNOPSIS
#include <tiffio.h>
int TIFFFieldWriteCount(const TIFFField* fip)
DESCRIPTION
TIFFFieldWriteCount returns the number of values to be written into the
specified TIFF field; that is, the number of arguments that should be
supplied to TIFFSetField. For most field types this is a small posi-
tive integer, typically 1 or 2, but there are some special values:
TIFF_VARIABLE indicates that a variable number of values is possible;
then, a uint16_t count argument and a pointer data argument must be
supplied to TIFFSetField.
TIFF_VARIABLE2 is the same as TIFF_VARIABLE except that the count argu-
ment must have type uint32_t. (On most modern machines, this makes no
practical difference, and the count argument can simply be an int in
either case.)
TIFF_SPP indicates that the number of arguments must be equal to the
image's number of samples per pixel.
fip is a field information pointer previously returned by TIFFFind-
Field, TIFFFieldWithTag, or TIFFFieldWithName.
For most field types, TIFFFieldWriteCount returns the same value as
TIFFFieldReadCount, but there are some exceptions.
RETURN VALUES
TIFFFieldWriteCount returns an integer.
SEE ALSO
libtiff(3TIFF),
Libtiff library home page: http://www.simplesystems.org/libtiff/
libtiff July 26, 2012 TIFFFieldWriteCount(3TIFF)
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