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Programming
- A description on how to use and modify libpng (version 1.5.X)
- This file describes how to use and modify the PNG reference library
(known as libpng) for your own use. There are five sections to this
file: introduction, structures, reading, writing, and modification and
configuration notes for various special platforms. In addition to this
file, example.c is a good starting point for using the library, as
it is heavily commented and should include everything most people
will need. We assume that libpng is already installed; see the
INSTALL file for instructions on how to install libpng.
Libpng was written as a companion to the PNG specification, as a way
of reducing the amount of time and effort it takes to support the PNG
file format in application programs. The PNG specification is available
as RFC 2083 <http://www.ietf.org/rfc/rfc2083.txt> and as a
W3C Recommendation <http://www.w3.org/TR/REC-png-multi.html>. Some
additional chunks are described in the special-purpose public chunks
documents at <ftp://ftp.uu.net/graphics/png/documents/>. Other information
about PNG, and the latest version of libpng, can be found at the PNG home
page, <http://www.libpng.org/pub/png/>.
- The GNU time Command
(package: time)
- The GNU 'time' command runs another program,
then displays information about the resources used by that
program, collected by the system while the program was
running. You can select which information is reported
and the format in which it is shown, or have `time' save
the information in a file instead of display it on the screen.
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