NAME

       TIFFFieldWriteCount - get number of values to be written to field

SYNOPSIS

          #include <tiffio.h>

       int TIFFFieldWriteCount(const TIFFField *fip)

DESCRIPTION

       TIFFFieldWriteCount()  returns the number of values to be written into the specified TIFF field; that is,
       the number of arguments that should be supplied to TIFFSetField(). 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_t count argument
         and a pointer data argument must be supplied to TIFFSetField().

       • TIFF_VARIABLE2 is the same as TIFF_VARIABLE except that the count argument must have type uint32_t. (On
         most modern machines, this makes no practical difference, and the count argument can simply be  an  int
         in either case.)

       • TIFF_SPP  indicates  that  the  number  of arguments must be equal to the image's number of samples per
         pixel.

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

       For most field types, TIFFFieldWriteCount() returns the same value as TIFFFieldReadCount(), but there are
       some exceptions.

RETURN VALUES

       TIFFFieldWriteCount() returns an integer.

SEE ALSO

       libtiff (3tiff)

AUTHOR

       LibTIFF contributors

COPYRIGHT

       1988-2024, LibTIFF contributors

4.5                                               Sep 05, 2024                        TIFFFIELDWRITECOUNT(3tiff)