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IM_IOCHECK

IM_IOCHECK

Section: C Library Functions (3) Updated: 11 April 1990
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NAME

im_pincheck, im_poutcheck, im_piocheck - checks image descriptors for PIO  

SYNOPSIS

#include <vips/vips.h>

int im_pincheck( in )
IMAGE *in;

int im_poutcheck( out )
IMAGE *out;

int im_piocheck( in, out)
IMAGE *in, *out;  

DESCRIPTION

im_pincheck(3) checks that an image descriptor is suitable for PIO input. If the descriptor is IM_OPENOUT and the descriptor has been written to, it is automatically `rewound,' that is, it is closed and reopened as an IM_MMAPIN descriptor.

im_poutcheck(3) checks that a descriptor is suitable for PIO output.

im_piocheck(3) simply calls in_pincheck(3) for image in and im_poutcheck(3) for image out.  

RETURN VALUE

All functions returns 0 on success and -1 on error.  

SEE ALSO

im_generate(3), im_open(3).  

COPYRIGHT

National Gallery  

AUTHOR

J. Cupitt - 23/7/93


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
SEE ALSO
COPYRIGHT
AUTHOR

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Time: 21:48:24 GMT, April 16, 2011