TIFFFieldReadCount − Get number of values to be read from field
#include <tiffio.h>
int TIFFFieldReadCount(const TIFFField* fip)
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.
TIFFFieldReadCount returns an integer.
libtiff(3TIFF),
Libtiff library home page: http://www.remotesensing.org/libtiff/