glutMouseFunc(3GLUT) GLUT glutMouseFunc(3GLUT)
NAME
glutMouseFunc - sets the mouse callback for the current window.
SYNTAX
#include <GLUT/glut.h>
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 but-
ton, 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 call-
back occurred.
Passing NULL to glutMouseFunc disables the generation of mouse callbacks.
SEE ALSO
glutKeyboardFunc, glutMotionFunc, glutSpaceballButtonFunc, glutButtonBoxFunc, glutTabletButtonFunc, glutGetModifiers
AUTHOR
Mark J. Kilgard (mjk@nvidia.com)
GLUT
3.7 glutMouseFunc(3GLUT)
