TIFFFIELDPASSCOUNT(3tiff)           LibTIFF          TIFFFIELDPASSCOUNT(3tiff)

NAME
       TIFFFieldPassCount - get whether to pass a count to
       TIFFGetField/TIFFSetField

SYNOPSIS

          #include <tiffio.h>

       int TIFFFieldPassCount(const TIFFField *fip)

DESCRIPTION
       TIFFFieldPassCount() returns true (nonzero) if TIFFGetField() and
       TIFFSetField() expect a count value to be passed before the actual data
       pointer.

       fip is a field information pointer previously returned by
       TIFFFindField(), TIFFFieldWithTag(), TIFFFieldWithName().

       When a count is required, it will be of type uint32_t if
       TIFFFieldReadCount() reports TIFF_VARIABLE2, and of type uint16_t
       otherwise.  Use TIFFFieldWriteCount() for TIFFSetField(), respectively.
       (This distinction is critical for use of TIFFGetField(), but normally
       not so for use of TIFFSetField().)

       An alternative function for the count value determination is
       TIFFFieldSetGetCountSize().

RETURN VALUES
       TIFFFieldPassCount() returns an integer that is always 1 (true) or 0
       (false).

SEE ALSO
       TIFFFieldDataType (3tiff), TIFFFieldName (3tiff), TIFFFieldQuery
       (3tiff), TIFFFieldReadCount (3tiff), TIFFFieldTag (3tiff),
       TIFFFieldWriteCount (3tiff), libtiff

AUTHOR
       LibTIFF contributors

COPYRIGHT
       1988-2022, LibTIFF contributors

4.6                            September 8, 2023     TIFFFIELDPASSCOUNT(3tiff)