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 call-
back was due to a release or press respectively. The x and y callback
parameters indicate the window relative coordinates when the mouse but-
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 but-
ton 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 call-
backs.
SEE ALSO
glutKeyboardFunc(3), glutMotionFunc(3), glutSpaceballButtonFunc(3),
glutButtonBoxFunc(3), glutTabletButtonFunc(3), glutGetModifiers(3)
AUTHOR
Mark J. Kilgard (mjk@nvidia.com)
GLUT 3.7 glutMouseFunc(3GLUT)
Mac OS X 10.6 - Generated Thu Sep 17 20:20:41 CDT 2009