glutKeyboardUpFunc(3GLUT)					       GLUT						 glutKeyboardUpFunc(3GLUT)

NAME

       glutKeyboardUpFunc - sets the keyboard up (key release) callback for the current window.

SYNTAX

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

ARGUMENTS

       func	 The new keyboard up callback function.

DESCRIPTION

       glutKeyboardFunc  sets  the keyboard up (key release) callback for the current window.  When a user types into the window, each key release
       matching an ASCII character will generate a keyboard up 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 up callback, glutGetModifiers may be called to determine the state of modifier keys when  the	keystroke  generating  the
       callback occurred.

       To avoid the reporting of key release/press pairs due to auto repeat, use glutIgnoreKeyRepeat to ignore auto repeated keystrokes.

       There  is no guarantee that the keyboard press callback will match the exact ASCII character as the keyboard up callback.  For example, the
       key down may be for a lowercase b, but the key release may report an uppercase B if the shift state has changed.  The same applies to  sym-
       bols and control characters.  The precise behavior is window system dependent.

       Use glutSpecialUpFunc for a means to detect non-ASCII key releases.

SEE ALSO

       glutKeyboardFunc,  glutSpecialUpFunc,  glutSpecialFunc,	glutCreateWindow, glutMouseFunc, glutSpaceballButtonFunc, glutButtonBoxFunc, glut-
       TabletButtonFunc, glutGetModifiers, glutIgnoreKeyRepeat

AUTHOR

       Mark J. Kilgard (mjk@nvidia.com)

GLUT
									3.7						 glutKeyboardUpFunc(3GLUT)