1TIFFFieldWriteCount(3TIFF)                          TIFFFieldWriteCount(3TIFF)
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NAME

6       TIFFFieldWriteCount - Get number of values to be written to field
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SYNOPSIS

9       #include <tiffio.h>
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11       int TIFFFieldWriteCount(const TIFFField* fip)
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DESCRIPTION

14       TIFFFieldWriteCount returns the number of values to be written into the
15       specified TIFF field; that is, the number of arguments that  should  be
16       supplied  to  TIFFSetField.  For most field types this is a small posi‐
17       tive integer, typically 1 or 2, but there are some special values:
18       TIFF_VARIABLE indicates that a variable number of values  is  possible;
19       then,  a  uint16_t  count  argument and a pointer data argument must be
20       supplied to TIFFSetField.
21       TIFF_VARIABLE2 is the same as TIFF_VARIABLE except that the count argu‐
22       ment  must have type uint32_t.  (On most modern machines, this makes no
23       practical difference, and the count argument can simply be  an  int  in
24       either case.)
25       TIFF_SPP  indicates  that  the number of arguments must be equal to the
26       image's number of samples per pixel.
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28       fip is a field information pointer  previously  returned  by  TIFFFind‐
29       Field, TIFFFieldWithTag, or TIFFFieldWithName.
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31       For  most  field  types,  TIFFFieldWriteCount returns the same value as
32       TIFFFieldReadCount, but there are some exceptions.
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RETURN VALUES

35       TIFFFieldWriteCount returns an integer.
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SEE ALSO

38       libtiff(3TIFF),
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40       Libtiff library home page: http://www.simplesystems.org/libtiff/
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44libtiff                          July 26, 2012      TIFFFieldWriteCount(3TIFF)
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