glutKeyboardFunc(3)                freeglut                glutKeyboardFunc(3)

NAME
       glutKeyboardFunc - sets the keyboard callback for the current window.

SYNTAX

       void glutKeyboardFunc(void (*func)(unsigned char key,
                             int x, int y));

ARGUMENTS
       func      The new keyboard callback function.

DESCRIPTION
       glutKeyboardFunc sets the keyboard callback for the current window.
       When a user types into the window, each key press generating an ASCII
       character will generate a keyboard callback. The key callback parameter
       is the generated ASCII character. The state of modifier keys such as
       Shift cannot be determined directly; their only effect will be on the
       returned ASCII data. The x and y callback parameters indicate the mouse
       location in window relative coordinates when the key was pressed. When
       a new window is created, no keyboard callback is initially registered,
       and ASCII key strokes in the window are ignored. Passing NULL to
       glutKeyboardFunc disables the generation of keyboard callbacks.

       During a keyboard callback, glutGetModifiers may be called to determine
       the state of modifier keys when the keystroke generating the callback
       occurred.

       Use glutSpecialFunc for a means to detect non-ASCII key strokes.

SEE ALSO
       glutKeyboardUpFunc, glutSpecialFunc, glutCreateWindow, glutMouseFunc,
       glutSpaceballButtonFunc, glutButtonBoxFunc, glutTabletButtonFunc,
       glutGetModifiers

AUTHOR
       Mark J. Kilgard (mjk@nvidia.com)

freeglut                          April 2025               glutKeyboardFunc(3)