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 positive 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
argument 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
TIFFFindField, 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)