glutMouseFunc

glutMouseFunc(3GLUT)                 GLUT                 glutMouseFunc(3GLUT)



NAME
       glutMouseFunc - sets the mouse callback for the current window.

SYNTAX
       void glutMouseFunc(void (*func)(int button, int state,
                          int x, int y));

ARGUMENTS
       func      The new mouse callback function.

DESCRIPTION
       glutMouseFunc sets the mouse callback for the current window. When a
       user presses and releases mouse buttons in the window, each press and
       each release generates a mouse callback. The button parameter is one of
       GLUT_LEFT_BUTTON, GLUT_MIDDLE_BUTTON, or GLUT_RIGHT_BUTTON. For systems
       with only two mouse buttons, it may not be possible to generate
       GLUT_MIDDLE_BUTTON callback. For systems with a single mouse button, it
       may be possible to generate only a GLUT_LEFT_BUTTON callback. The state
       parameter is either GLUT_UP or GLUT_DOWN indicating whether the
       callback was due to a release or press respectively. The x and y
       callback parameters indicate the window relative coordinates when the
       mouse button state changed. If a GLUT_DOWN callback for a specific
       button is triggered, the program can assume a GLUT_UP callback for the
       same button will be generated (assuming the window still has a mouse
       callback registered) when the mouse button is released even if the
       mouse has moved outside the window.

       If a menu is attached to a button for a window, mouse callbacks will
       not be generated for that button.

       During a mouse callback, glutGetModifiers may be called to determine
       the state of modifier keys when the mouse event generating the callback
       occurred.

       Passing NULL to glutMouseFunc disables the generation of mouse
       callbacks.

SEE ALSO
       glutKeyboardFunc, glutMotionFunc, glutSpaceballButtonFunc,
       glutButtonBoxFunc, glutTabletButtonFunc, glutGetModifiers

AUTHOR
       Mark J. Kilgard (mjk@sgi.com)



GLUT                                  3.2                 glutMouseFunc(3GLUT)