IM_MMAPINRW
Section: C Library Functions (3)
Updated: 22 April 1991
Index
Return to Main Contents
NAME
im_mmapinrw - memory maps a VASARI image file with read and write access
SYNOPSIS
#include <vips/vips.h>
IMAGE *im_mmapinrw(file_name)
char *file_name;
DESCRIPTION
im_mmapinrw(3)
works exactly as im_mmapin but the entered file_name is memory mapped
with read and write permissions. This is useful for some applications,
like writing lines onto an existing file. Since
the user might change accidentally the context of the original file,
great care should taken when handling a file with this routine.
im_open(3) is generally more convenient.
RETURN VALUE
The function returns the image descriptor on success and NULL on error.
SEE ALSO
im_close(3), im_open(3), im_makerw(3).
COPYRIGHT
N. Dessipris
AUTHOR
N. Dessipris - 11/04/1990