Glut Interaction

• Keyboard information
  • glutGetModifiers() returns information about the meta keys that were pressed.
    • This is a bitmask
    • GLUT_ACTIVE_SHIFT
    • GLUT_ACTIVE_CTRL
    • GLUT_ACTIVE_ALT
  • glutSpecialFunc() returns information about special keyboard keys.
    • Too numerous to mention here, but
    • GLUT_KEY_F1
    • GLUT_KEY_F12
    • GLUT_KEY_LEFT
    • GLUT_KEY_HOME
    • escape, backspace and delete generate ascii
• Mouse Interaction
  • Like the keyboard function, we need to register a mouse interaction function.
  • glutMouseFunc
    • This points to a function with the following parameters
      • int button
        • GLUT_LEFT_BUTTON
        • GLUT_MIDDLE_BUTTON
        • GLUT_RIGHT_BUTTON
        • On a single button mouse system, only a GLUT_LEFT_BUTTON is generated.
      • int state
        • GLUT_DOWN
        • GLUT_UP
      • int x
      • int y
  • glutMotionFunc
    • parameters x, and y locations
    • Returns when there is mouse motion in the window with the button down.
  • glutPassiveMotionFunc
    • As above but no button is pressed.
• There are calls to deal with a spaceball
• And to deal with a tablet, button box , and a dial box.
• And some Example Code