glutSpecialUpFunc(3GLUT)             GLUT             glutSpecialUpFunc(3GLUT)



NAME
       glutSpecialUpFunc - sets the special keyboard up (key release) callback
       for the current window.

SYNTAX
       void glutSpecialUpFunc(void (*func)(int key, int x, int y));

ARGUMENTS
       func      The new special callback function.

DESCRIPTION
       glutSpecialUpFunc sets the special keyboard up (key  release)  callback
       for  the  current window. The special keyboard up callback is triggered
       when keyboard function or directional keys are released. The key  call-
       back  parameter  is  a GLUTKEY* constant for the special key pressed.
       The x and y callback parameters indicate the mouse in  window  relative
       coordinates  when the key was pressed. When a new window is created, no
       special up callback is initially registered and special key releases in
       the window are ignored.  Passing NUL to glutSpecialUpFunc disables the
       generation of special up callbacks.

       During a special up callback, glutGetModifiers may be called to  deter-
       mine  the  state  of  modifier keys when the key release generating the
       callback occurred.

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

       An  implementation  should  do its best to provide ways to generate all
       the GLUTKEY* special keys. The available GLUTKEY* values are:

       GLUTKEYF1
               F1 function key.

       GLUTKEYF2
               F2 function key.

       GLUTKEYF3
               F3 function key.

       GLUTKEYF4
               F4 function key.

       GLUTKEYF5
               F5 function key.

       GLUTKEYF6
               F6 function key.

       GLUTKEYF7
               F7 function key.

       GLUTKEYF8
               F8 function key.

       GLUTKEYF9
               F9 function key.

       GLUTKEYF100
               F10 function key.

       GLUTKEYF11
               F11 function key.

       GLUTKEYF12
               F12 function key.

       GLUTKEYLEFT
               Left directional key.

       GLUTKEYUP
               Up directional key.

       GLUTKEYRIGHT
               Right directional key.

       GLUTKEYDOWN
               Down directional key.

       GLUTKEYPAGEUP
               Page up directional key.

       GLUTKEYPAGEDOWN
               Page down directional key.

       GLUTKEYHOME
               Home directional key.

       GLUTKEYEND
               End directional key.

       GLUTKEYINSERT
               Inset directional key.

       Note that the escape, backspace, and delete keys are  generated  as  an
       ASCI character.

SEE ALSO
       glutSpecialFunc,  glutKeyboardFunc,  glutKeyboardUpFunc, glutMouseFunc,
       glutSpaceballButtonFunc, glutButtonBoxFunc, glutTabletButtonFunc, glut-
       GetModifiers, glutIgnoreKeyRepeat

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



GLUT                                  3.7             glutSpecialUpFunc(3GLUT)