TIFFFIELDREADCOUNT(3tiff) LibTIFF TIFFFIELDREADCOUNT(3tiff)
NAME
TIFFFieldReadCount - get number of values to be read from field
SYNOPSIS
#include <tiffio.h>
TIFFFieldReadCount(3) 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:
o TIFF_VARIABLE = -1 indicates that a variable number of values is
possible; then, a uint16_t count argument and a pointer data argument
must be supplied to TIFFGetField().
o TIFF_VARIABLE2 = -3 is the same as TIFF_VARIABLE except that the
count argument must have type uint32_t.
o TIFF_SPP = -2 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
TIFFFieldDataType(3), TIFFFieldName(3), TIFFFieldPassCount(3),
TIFFFieldQuery(3), TIFFFieldTag(3), TIFFFieldWriteCount(3), libtiff(3)
AUTHOR
LibTIFF contributors
COPYRIGHT
1988-2022, LibTIFF contributors
4.6 October 9, 2023 TIFFFIELDREADCOUNT(3tiff)
tiff 4.6.0 - Generated Sat Oct 14 15:30:31 CDT 2023