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Man Pages


Manual Reference Pages  -  GLUTMOUSEFUNC (3)

NAME

glutMouseFunc - sets the mouse callback for the current window.

CONTENTS

Syntax
Arguments
Description
See Also
Author

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 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.

SEE ALSO

glutKeyboardFunc, glutMotionFunc, glutSpaceballButtonFunc, glutButtonBoxFunc, glutTabletButtonFunc, glutGetModifiers

AUTHOR

Mark J. Kilgard (mjk@nvidia.com)
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GLUT GLUTMOUSEFUNC (3GLUT) 3.7

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