glutUseLayer  -  changes  the layer in use for the current
       window.

SYNTAX

       void glutUseLayer(GLenum layer);

ARGUMENTS

       layer     Either GLUT_NORMAL  or  GLUT_OVERLAY,  selecting
                 the normal plane or overlay respectively.

DESCRIPTION

       glutUseLayer  changes  the per-window layer in use for the
       current window, selecting either the normal plane or over-
       lay.  The  overlay  should only be specified if an overlay
       exists, however windows without an overlay may still  call
       glutUseLayer(GLUT_NORMAL).  OpenGL commands for the window
       are directed to the current layer in use.

       To query the layer in use for a  window,  call  glutLayer-
       Get(GLUT_LAYER_IN_USE).

SEE ALSO

       glutEstablishOverlay, glutSetWindow

AUTHOR

       Mark J. Kilgard (mjk@nvidia.com)