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download PDF document: TIFFquery.3.pdf

QUERY(3TIFF) QUERY(3TIFF)
NAME TIFFCurrentRow, TIFFCurrentStrip, TIFFCurrentTile, TIFFCurrentDirectory, TIFFLastDirectory, TIFFFileno, TIFFFileName, TIFFGetMode, TIFFIsTiled, TIFFIsByteSwapped, TIFFIsUpSampled, TIFFIsMSB2LSB, TIFFGetVersion - query routines
SYNOPSIS #include <tiffio.h>
uint32_t TIFFCurrentRow(TIFF* tif) tstrip_t TIFFCurrentStrip(TIFF* tif) ttile_t TIFFCurrentTile(TIFF* tif) tdir_t TIFFCurrentDirectory(TIFF* tif) int TIFFLastDirectory(TIFF* tif) int TIFFFileno(TIFF* tif) char* TIFFFileName(TIFF* tif) int TIFFGetMode(TIFF* tif) int TIFFIsTiled(TIFF* tif) int TIFFIsByteSwapped(TIFF* tif) int TIFFIsUpSampled(TIFF* tif) int TIFFIsMSB2LSB(TIFF* tif) const char* TIFFGetVersion(void)
DESCRIPTION The following routines return status information about an open TIFF file.
TIFFCurrentDirectory returns the index of the current directory (directories are numbered starting at 0). This number is suitable for use with the TIFFSetDirectory routine.
TIFFLastDirectory returns a non-zero value if the current directory is the last directory in the file; otherwise zero is returned.
TIFFCurrentRow, TIFFCurrentStrip, and TIFFCurrentTile, return the current row, strip, and tile, respectively, that is being read or written. These values are updated each time a read or write is done.
TIFFFileno returns the underlying file descriptor used to access the TIFF image in the filesystem.
TIFFFileName returns the pathname argument passed to TIFFOpen or TIFFFdOpen.
TIFFGetMode returns the mode with which the underlying file was opened. On UNIX systems, this is the value passed to the open(2) system call.
TIFFIsTiled returns a non-zero value if the image data has a tiled organization. Zero is returned if the image data is organized in strips.
TIFFIsByteSwapped returns a non-zero value if the image data was in a different byte-order than the host machine. Zero is returned if the TIFF file and local host byte-orders are the same. Note that TIFFReadTile(), TIFFReadEncodedStrip() and TIFFReadScanline() functions already normally perform byte swapping to local host order if needed.

TIFFGetVersion returns an ASCII string that has a version stamp for the TIFF library software.
DIAGNOSTICS None.
SEE ALSO libtiff(3TIFF), TIFFOpen(3TIFF), TIFFFdOpen(3TIFF)
libtiff October 29, 2004 QUERY(3TIFF)