TIFFFieldPassCount¶
Synopsis¶
#include <tiffio.h>
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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