---
name: "glutKeyboardFunc"
section: "3x"
platform: "linux"
package: "glut-dev"
version: "3.3-2"
release: "Debian 1.3 (Bo)"
platforms: ["linux"]
url: "https://new.carta.tech/glutKeyboardFunc/3x"
---

# glutKeyboardFunc(3x)

sets the keyboard callback for the current window.

## 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

glutSpecialFunc, glutCreateWindow, glutMouseFunc, glutSpaceballButtonFunc, glutButtonBoxFunc, glutTabletButtonFunc, glutGetModifiers

## AUTHOR

Mark J. Kilgard (mjk@sgi.com)