60 lines
2.3 KiB
C
60 lines
2.3 KiB
C
/* @(#) Useful macros for appending one line in the History field of the
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* @(#) output image descriptor when a function is called
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* @(#) The main program should use im_updatehist()
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* @(#) The added line corresponds to the command relevant to the function
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* @(#) for instance
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* @(#) for the function: im_add(in1, in2, out) the following lines of code can
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* @(#) be used to add a line of history in the Hist member
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* @(#) of the out image descriptor
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* @(#) ....
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* @(#) IMAGE *in1, *in2, *out;
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* @(#) ....
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* @(#) if ( im_add(in1, in2, out) == -1 ) return(-1);
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* @(#) if ( IM_ADD(in1, in2, out) == -1 ) return(-1);
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* @(#) ....
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* @(#)
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* @(#) The first function will add the two images in1 and in2,
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* @(#) whereas the second call will append
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* @(#) at the history descriptor of out the line:
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* @(#) add infile outfile # date
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* @(#) where infile is in.filename and outfile is out.filename
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* @(#) The history line has been prepared in such a way that the first
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* @(#) argument is the UNIX command which corresponds to the function
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* @(#) As a general rule, all functions in im_funcs directory which
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* @(#) have a correponding command in src directory are listed here
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* @(#)
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* @(#) Since the macros presented in this file correspond to the function
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* @(#) im_histlin() the returned value is 0 on success and -1 on error.
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* @(#)
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*/
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/*
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This file is part of VIPS.
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VIPS is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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*/
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/* Made obsolete by the function database stuff ... just here in case anyone
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* still includes it.
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*/
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