Microsoft as part of its academic alliance with UW provides Visual Studio (2015 edition) at no cost to students. You can get it by going here. You will need to login using your CSE account, i.e., full @cs email address. You can request a password reminder via that webpage if need be.
Do you have the windows SDK too? If the visual studio install did not install the SDK, then you might run into errors of the sort gl.h ot glut.h not found. Installing the Windows SDK will help.
Installing FLTK
FLTK home page
FLTK Programming Manual
FLTK Demo for NT and its sources
FLTK Demo for Linux and its sources
HelpSession: FLTK
Intro to OpenGL
Some OpenGL examples
HelpSession: OpenGL Topics
OpenGL Programming Guide ("The Red Book")
OpenGL Reference Manual ("The Blue Book")