Mouse movement&light problem

OpenGL OpenGL: Basic Coding
1

  1. I’m using GLUT how do I set mouse coordinates ? is that possible?I want to set the coordinates in center of screen(or anywhere on screen-doen’t matter) and rotate the screen by using deltax and deltay.

  2. Light in my project doesn’t reflect from the wall(when i move to the wall it gets darker(FRONT)and on the other side its bright) How do I correct this ?

Thanks