lots of opengl trials

Just copying over all the links I used as such, not bothering to format it:

http://forum.doom9.org/showthread.php?t=145266

points to

http://youka.de/archives/182

http://forums.animesuki.com/showthread.php?t=52757

For the youka.de link,

http://fr.openclassrooms.com/forum/sujet/error-c2440-encore-vc-express-2005-55168?page=1

and
http://stackoverflow.com/questions/5643172/glfw-failed-to-open-a-window

and

http://stackoverflow.com/questions/4845410/error-lnk2019-unresolved-external-symbol-main-referenced-in-function-tmainc

http://stackoverflow.com/questions/6222509/getting-many-opengl-errors

says add windows.h before every include of gl related h file - that worked for fbo test from http://www.songho.ca/opengl/gl_fbo.html

For making a test with Youka's window.h - wait for keypress on Windows,
https://www.google.co.in/search?q=c%2B%2B+wait+for+keypress

http://www.cplusplus.com/forum/beginner/4533/