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im_makerw(3)                                                      im_makerw(3)




NAME

       im_makerw - make an IMAGE writeable


SYNOPSIS

       #include <vips/vips.h>

       int im_makerw( image )
       IMAGE *image;


DESCRIPTION

       im_makerw(3)  attempts  to  make image writeable, ready for an in-place
       operation.  Its actions are just as  those  for  im_incheck(3),  except
       that descriptors which after im_incheck(3) end up as IM_MMAPIN descrip-
       tors, magically become IM_MMAPINRW descriptors.

       Extreme caution is urged! You can permanently damage valuable data with
       this call.


RETURN VALUE

       The function returns 0 on success and -1 on error.


SEE ALSO

       im_mmapin(3), im_mmapinrw(3), im_fastlineuser(3).


COPYRIGHT

       National Gallery, 1992


AUTHOR

       J. Cupitt



                                 22 April 1992                    im_makerw(3)

im_makerw 7.14.5 - Generated Sun Sep 7 19:15:05 CDT 2008
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