im_makerw(3) - Linux man page

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 descriptors, 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

Referenced By

im_iocheck(3)