Capture mouse movement

OpenGL OpenGL: Basic Coding
1

I am using GLUT lib to do programming on Windows XP. I know there is a function ‘glutMotionFunc’ can catch mouse movement, but it just can catch the movement when some button is holding.

Is there someone know how I can capture the mouse movement without holding anying button?

2

You mean like this glut function:

glutPassiveMotionFunc( func )

Originally posted by JenniferHu:
[b]I am using GLUT lib to do programming on Windows XP. I know there is a function ‘glutMotionFunc’ can catch mouse movement, but it just can catch the movement when some button is holding.

Is there someone know how I can capture the mouse movement without holding anying button?[/b]