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KDE Image I/O library
---------------------
This library allows applications that use the Qt library to read and
write images in extra formats. Current formats include:
JPEG <read>
XV <read> <write>
EPS <read> <write>
NETPBM <incomplete>
PNG <read> <write, only with newer libraries>
TIFF <read>
KRL <read>
To use these formats, you must
1. link the application with the libkimgio library
2. Include the <kimageio.h> header
3. call KImageIO::registerFormats() once, somewhere in your code
before you load an image.
Writing handlers
----------------
Please read the documentation for the QImageIO class in the Qt
documentation.
1. When writing handlers, there is a function naming convention;
suppose, for example, we were writing PNG read and write handlers,
we would name them
void kimgio_png_read ( QImageIO * );
void kimgio_png_write( QImageIO * );
ie
kimgio_<format>_<read/write>
This should reduce the chance of identifier clashes with other code.
2. If you only have either a reader or the writer for a particular
format, don't use NULL in QImageIO::defineIOHandler. Instead, write
a stub function for the unimplemented handler which displays a message
on standard output. This prevents kimgio-using programs dumping core
when attempting to call the unimplemented handler.
Yours in good faith and pedantry,
Sirtaj Singh Kang <taj@kde.org>, 23 September 1998.
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