glutMotionFunc(3) freeglut glutMotionFunc(3) NAME glutMotionFunc, glutPassiveMotionFunc - set the motion and passive motion callbacks respectively for the current window. SYNTAX void glutMotionFunc(void (*func)(int x, int y)); void glutPassiveMotionFunc(void (*func)(int x, int y)); ARGUMENTS func The new motion or passive motion callback function. DESCRIPTION glutMotionFunc and glutPassiveMotionFunc set the motion and passive motion callback respectively for the current window. The motion callback for a window is called when the mouse moves within the window while one or more mouse buttons are pressed. The passive motion callback for a window is called when the mouse moves within the window while no mouse buttons are pressed. The x and y callback parameters indicate the mouse location in window rela- tive coordinates. Passing NULL to glutMotionFunc or glutPassiveMotionFunc disables the gener- ation of the mouse or passive motion callback respectively. SEE ALSO glutMouseFunc, glutSpaceballMotionFunc, glutTabletMotionFunc AUTHOR Mark J. Kilgard (mjk@nvidia.com) freeglut April 2025 glutMotionFunc(3)