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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  respec-tively. respectively.
       tively.  The x and y callback parameters indicate the window relative coordinates when the mouse but-ton button
       ton 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 call-back callback
       back 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  but-ton. button.
       ton.

       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(3G), glutMotionFunc(3G), glutSpaceballButtonFunc(3G),  glutButtonBoxFunc(3G),  glutTabletButtonFunc(3G),
       glutGetModifiers(3G)


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



GLUT                                                 3.7                                glutMouseFunc(3GLUT)