glutspaceballbuttonfunc(3) - Linux man page

Name

glutSpaceballButtonFunc - Sets a spaceball button callback.

Library

OpenGLUT - input

Synopsis

#include <openglut.h>

void

glutSpaceballButtonFunc(void( *callback )( int button, int state ));

Parameters

callback Client spaceball button hook.

Description

This function registers a callback for a spaceball to report buttons. A spaceball has six axes of freedom (three of motion and three of orientation), plus buttons. The spaceball has glutDeviceGet( GLUT_NUM_SPACEBALL_BUTTONS) and numbers them from 1. Button state is either GLUT_UP or GLUT_DOWN.

The callback is bound to the current window .

Caveats

OpenGLUT does not implement spaceball support.

In contrast, mouse buttons are numbered from 0 in the GLUT API. This is a wrinkle.