GLUT_SPACEBALLBUTTON_CALLBACK 1158 php_opengl/glut/php_glut.c call_user_callback(call_backs,GLUT_SPACEBALLBUTTON_CALLBACK,2,params); GLUT_SPACEBALLBUTTON_CALLBACK 1167 php_opengl/glut/php_glut.c HASH_CALLBACK(callback, 1, GLUT_SPACEBALLBUTTON_CALLBACK);