glReadPixels Source code

[asimov03]

Hi Guys,

I need some help.  I am trying to find the source code of the glReadPixels(...).  I have looked and looked but not sure which file contains this.  I did find the .h with the function declaration but not the code itself.  I am using visual studio 2005 on winXP.  Any help will be appreciated in locating this function.