glxsample\main.cpp .........\makefile .........\readme.txt glxsample win32sample\Debug ...........\.....\pngview.exe ...........\icon1.ico ...........\makefile ...........\pngview.cpp ...........\pngview.dsp ...........\pngview.dsw ...........\pngview.rc ...........\resource.h win32sample sample.cpp yspng.cpp yspng.h