png codec can be embedded under the VC under linux and compiled by

PNG编解码\libpng-1.2.50\aclocal.m4
.........\.............\ANNOUNCE
.........\.............\autogen.sh
.........\.............\CHANGES
.........\.............\CMakeLists.txt
.........\.............\config.guess
.........\.............\config.h.in
.........\.............\config.sub
.........\.............\configure
.........\.............\configure.ac
.........\.............\...trib\gregbook\COPYING
.........\.............\.......\........\LICENSE
.........\.............\.......\........\Makefile.mingw32
.........\.............\.......\........\Makefile.sgi
.........\.............\.......\........\Makefile.unx
.........\.............\.......\........\Makefile.w32
.........\.............\.......\........\README
.........\.............\.......\........\readpng.c
.........\.............\.......\........\readpng.h
.........\.............\.......\........\readpng2.c
.........\.............\.......\........\readpng2.h
.........\.............\.......\........\readppm.c
.........\.............\.......\........\rpng-win.c
.........\.............\.......\........\rpng-x.c
.........\.............\.......\........\rpng2-win.c
.........\.............\.......\........\rpng2-x.c
.........\.............\.......\........\toucan.png
.........\.............\.......\........\wpng.c
.........\.............\.......\........\writepng.c
.........\.............\.......\........\writepng.h
.........\.............\.......\pngminim\decoder\gather.sh
.........\.............\.......\........\.......\makefile
.........\.............\.......\........\.......\pngusr.h
.........\.............\.......\........\.......\README
.........\.............\.......\........\encoder\dummy_inflate.c
.........\.............\.......\........\.......\gather.sh
.........\.............\.......\........\.......\makefile
.........\.............\.......\........\.......\pngusr.h
.........\.............\.......\........\.......\README
.........\.............\.......\........\preader\gather.sh
.........\.............\.......\........\.......\makefile
.........\.............\.......\........\.......\pngusr.h
.........\.............\.......\........\.......\README
.........\.............\.......\......us\makefile.std
.........\.............\.......\........\makefile.tc3
.........\.............\.......\........\png2pnm.bat
.........\.............\.......\........\png2pnm.c
.........\.............\.......\........\png2pnm.sh
.........\.............\.......\........\pngminus.bat
.........\.............\.......\........\pngminus.sh
.........\.............\.......\........\pnm2png.bat
.........\.............\.......\........\pnm2png.c
.........\.............\.......\........\pnm2png.sh
.........\.............\.......\........\README
.........\.............\.......\...suite\basn0g01.png
.........\.............\.......\........\basn0g02.png
.........\.............\.......\........\basn0g04.png
.........\.............\.......\........\basn0g08.png
.........\.............\.......\........\basn0g16.png
.........\.............\.......\........\basn2c08.png
.........\.............\.......\........\basn2c16.png
.........\.............\.......\........\basn3p01.png
.........\.............\.......\........\basn3p02.png
.........\.............\.......\........\basn3p04.png
.........\.............\.......\........\basn3p08.png
.........\.............\.......\........\basn4a08.png
.........\.............\.......\........\basn4a16.png
.........\.............\.......\........\basn6a08.png
.........\.............\.......\........\basn6a16.png
.........\.............\.......\........\README
.........\.............\.......\visupng\cexcept.h
.........\.............\.......\.......\PngFile.c
.........\.............\.......\.......\PngFile.h
.........\.............\.......\.......\README.txt
.........\.............\.......\.......\resource.h
.........\.............\.......\.......\VisualPng.c
.........\.............\.......\.......\VisualPng.dsp
.........\.............\.......\.......\VisualPng.dsw
.........\.............\.......\.......\VisualPng.ico
.........\.............\.......\.......\VisualPng

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