glutMouseFunc(3GLUT) GLUT glutMouseFunc(3GLUT)NAMEglutMouseFunc - 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.
DESCRIPTIONglutMouseFunc sets the mouse callback for the current win
dow. 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 call
back parameters indicate the window relative coordinates
when the mouse button state changed. If a GLUT_DOWN call
back for a specific button is triggered, the program can
assume a GLUT_UP callback for the same button will be gen
erated (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@nvidia.com)
GLUT 3.7 1
