How to get current mouse position in C ++ / OpenGL?

Question

I know that I can use the Mouse callback function when the user clicks on the mouse, but what if I want to know the current x / y position without clicking the user?

Will I have to use another callback that gets called with any mouse movement and tracks x / y itself, or is there a function that I can call in GLUT / OpenGL to get it?

Answer 1

Register glutPassiveMotionFunc callback function

See information about callbacks

Answer 2

glutMotionFunc/glutPassiveMotionFunc .

7.6 glutMotionFunc, glutPassiveMotionFunc