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Man Pages


Manual Reference Pages  -  GLUTBUTTONBOXFUNC (3)

NAME

glutButtonBoxFunc - sets the dial & button box button callback for the current window.

CONTENTS

Syntax
Arguments
Description
See Also
Author

SYNTAX


void glutButtonBoxFunc(void (*func)(int button, int state));

ARGUMENTS

func The new button box callback function.

DESCRIPTION

glutButtonBoxFunc sets the dial & button box button callback for the current window. The dial & button box button callback for a window is called when the window has dial & button box input focus (normally, when the mouse is in the window) and the user generates dial & button box button presses. The button parameter will be the button number (starting at one). The number of available dial & button box buttons can be determined with glutDeviceGet(GLUT_NUM_BUTTON_BOX_BUTTONS). The state is either GLUT_UP or GLUT_DOWN indicating whether the callback was due to a release or press respectively.
Registering a dial & button box button callback when a dial & button box device is not available is ineffectual and not an error. In this case, no dial & button box button callbacks will be generated.
Passing NULL to glutButtonBoxFunc disables the generation of dial & button box button callbacks. When a new window is created, no dial & button box button callback is initially registered.

SEE ALSO

glutDialsFunc, glutDeviceGet, glutSpaceballButtonFunc, glutTabletButtonFunc

AUTHOR

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

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