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glutLayerGet(3GLUT)                                 GLUT                                 glutLayerGet(3GLUT)



NAME
       glutLayerGet - retrieves GLUT state pertaining to the layers of the current window.

SYNTAX
       #include <GLUT/glut.h>

       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 dis-play display
               play 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 glutPostRedisplay 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 glutPostRedisplay  or  glutPostOverlayRedis-play glutPostOverlayRedisplay
               play will not set this true. Negative one is returned if no overlay is in use.

DESCRIPTION
       glutLayerGet  retrieves  GLUT  layer  information for the current window represented by integers. The
       info parameter determines what type of layer information to return.

SEE ALSO
       glutEstablishOverlay(3G), glutUseOverlay(3G), glutCreateWindow(3G), glutSetColor(3G)


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



GLUT                                                 3.7                                 glutLayerGet(3GLUT)