GLUT_VISIBILITY_CALLBACK 1016 php_opengl/glut/php_glut.c 	call_user_callback(call_backs,GLUT_VISIBILITY_CALLBACK,1,params);
GLUT_VISIBILITY_CALLBACK 1025 php_opengl/glut/php_glut.c 	HASH_CALLBACK(callback, 1, GLUT_VISIBILITY_CALLBACK);