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IM_MMAPINRW

IM_MMAPINRW

Section: C Library Functions (3) Updated: 22 April 1991
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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


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
SEE ALSO
COPYRIGHT
AUTHOR

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Time: 21:48:23 GMT, April 16, 2011