---
name: "TIFFFieldPassCount"
section: "3tiff"
platform: "linux"
package: "libtiff-dev"
version: "4.7.0-3+deb13u3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/TIFFFieldPassCount"
---

# TIFFFieldPassCount(3tiff)

get whether to pass a count to TIFFGetField/TIFFSetField

## 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