glutLayerGet(3GLUT) GLUT glutLayerGet(3GLUT)NAMEglutLayerGet - retrieves GLUT state pertaining to the lay
ers of the current window.
SYNTAX
int glutLayerGet(GLenum info);
ARGUMENTS
info Name of device information to retrieve.
GLUT_OVERLAY_POSSIBLE
Whether an overlay could be established for the
current window given the current initial display
mode. If false, glutEstablishOverlay will fail
with a fatal error if called.
GLUT_LAYER_IN_USE
Either GLUT_NORMAL or GLUT_OVERLAY depending on
whether the normal plane or overlay is the layer
in use.
GLUT_HAS_OVERLAY
If the current window has an overlay established.
GLUT_TRANSPARENT_INDEX
The transparent color index of the overlay of the
current window; negative one is returned if no
overlay is in use.
GLUT_NORMAL_DAMAGED
True if the normal plane of the current window has
damaged (by window system activity) since the last
display callback was triggered. Calling glut
PostRedisplay will not set this true.
GLUT_OVERLAY_DAMAGED
True if the overlay plane of the current window
has damaged (by window system activity) since the
last display callback was triggered. Calling glut
PostRedisplay or glutPostOverlayRedisplay will not
set this true. Negative one is returned if no
overlay is in use.
DESCRIPTIONglutLayerGet retrieves GLUT layer information for the cur
rent window represented by integers. The info parameter
determines what type of layer information to return.
SEE ALSO
glutEstablishOverlay, glutUseOverlay, glutCreateWindow,
glutSetColor
AUTHOR
Mark J. Kilgard (mjk@nvidia.com)
GLUT 3.7 1
