.\"
.\" Copyright (c) Mark J. Kilgard, 1996.
.\"
.\" See the file "man/LICENSE" for information on usage and redistribution
.\"
.TH glutUseLayer 3 "November 2025" "freeglut" "freeglut"
.SH NAME
glutUseLayer - changes the layer in use for the current window.
.SH WARNING
Not yet implemented in freeglut.
.SH SYNTAX
.nf
.LP
void glutUseLayer(GLenum layer);
.fi
.SH ARGUMENTS
.IP \fIlayer\fP 1i
Either GLUT_NORMAL or GLUT_OVERLAY, selecting the normal
plane or overlay respectively.
.SH DESCRIPTION
glutUseLayer changes the per-window layer in use for the current
window, selecting either the normal plane or overlay. 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
glutLayerGet(GLUT_LAYER_IN_USE).
.SH SEE ALSO
glutEstablishOverlay, glutSetWindow
.SH AUTHOR
Mark J. Kilgard (mjk@nvidia.com)