TIFFGETFIELD(3tiff)                 LibTIFF                TIFFGETFIELD(3tiff)

NAME
       TIFFGetField - get the value(s) of a tag in an open TIFF file

SYNOPSIS
          #include <tiffio.h>
          #include <stdarg.h>

       int TIFFGetField(TIFF *tif, ttag_t tag, ...)

       int TIFFVGetField(TIFF *tif, ttag_t tag, va_list ap)

       int TIFFGetFieldDefaulted(TIFF *tif, ttag_t tag, ...)

       int TIFFVGetFieldDefaulted(TIFF *tif, ttag_t tag, va_list ap)

DESCRIPTION
       TIFFGetField() returns the value of a tag or pseudo-tag associated with
       the the current directory of the opened TIFF file tif.   (A  pseudo-tag
       is  a  parameter  that is used to control the operation of the TIFF li-
       brary but whose value is not read or written to the  underlying  file.)
       The  file must have been previously opened with TIFFOpen().  The tag is
       identified by tag, one of the values defined in the include file tiff.h
       (see  also  the table below). The type and number of values returned is
       dependent on the tag being requested. The programming interface uses  a
       variable argument list as prescribed by the stdarg.h interface. The re-
       turned values should only be interpreted if TIFFGetField() returns 1.

       TIFFVGetField() is functionally  equivalent  to  TIFFGetField()  except
       that  it  takes a pointer to a variable argument list.  TIFFVGetField()
       is useful for layering interfaces on top of the functionality  provided
       by TIFFGetField().

       TIFFGetFieldDefaulted()  and  TIFFVGetFieldDefaulted() are identical to
       TIFFGetField() and TIFFVGetField(), respectively, except that if a  tag
       is  not  defined  in  the current directory and it has a default value,
       then the default value is returned.

       The tags understood by libtiff the number of parameter values, and  the
       types for the returned values are shown below. The data types are spec-
       ified as in C and correspond to the types used to specify tag values to
       TIFFSetField().  Remember that TIFFGetField() returns parameter values,
       so all the listed data types  are  pointers  to  storage  where  values
       should be returned.  Consult the TIFF specification (or relevant indus-
       try specification) for information on the meaning of each tag and their
       possible values.

TAG PROPERTIES
4.5                              Jan 03, 2025              TIFFGETFIELD(3tiff)

Czas wygenerowania: 0.00031 sek.

Created with the man page lookup class by Andrew Collington.
Based on a C man page viewer by Vadim Pavlov
Unicode soft-hyphen fix (as used by RedHat) by Dan Edwards
Some optimisations by Eli Argon
Caching idea and code contribution by James Richardson

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