glutMouseFunc.man
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上传日期:2007-05-28
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- ."
- ." Copyright (c) Mark J. Kilgard, 1996.
- ."
- .TH glutMouseFunc 3GLUT "3.7" "GLUT" "GLUT"
- .SH NAME
- glutMouseFunc - sets the mouse callback for the current window.
- .SH SYNTAX
- .nf
- .LP
- void glutMouseFunc(void (*func)(int button, int state,
- int x, int y));
- .fi
- .SH ARGUMENTS
- .IP fIfuncfP 1i
- The new mouse callback function.
- .SH 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.
- .SH SEE ALSO
- glutKeyboardFunc, glutMotionFunc, glutSpaceballButtonFunc, glutButtonBoxFunc, glutTabletButtonFunc, glutGetModifiers
- .SH AUTHOR
- Mark J. Kilgard (mjk@nvidia.com)