NAME¶
TIFFFieldReadCount - Get number of values to be read from field
SYNOPSIS¶
#include <tiffio.h>
int TIFFFieldReadCount(const TIFFField* fip)
DESCRIPTION¶
TIFFFieldReadCount returns the number of values available to be read from
the specified TIFF field; that is, the number of arguments that should be
supplied to
TIFFGetField. 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 count argument and a pointer
data argument
must be supplied to
TIFFGetField.
TIFF_VARIABLE2 is the same as
TIFF_VARIABLE except that the
count argument must have type
uint32.
TIFF_SPP indicates that the number of arguments is equal to the image's
number of samples per pixel.
fip is a field information pointer previously returned by
TIFFFindField,
TIFFFieldWithTag, or
TIFFFieldWithName.
RETURN VALUES¶
TIFFFieldReadCount returns an integer.
SEE ALSO¶
libtiff(3TIFF),
Libtiff library home page:
http://www.remotesensing.org/libtiff/