centos man page for glutlayerget

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NAME
     glutLayerGet -- Allows you to get some overlay state/option variables.

LIBRARY
     OpenGLUT - overlays

SYNOPSIS
     #include <openglut.h>

     int
     glutLayerGet(GLenum eWhat);

PARAMETERS
      eWhat	Enumerated parameter ID.

DESCRIPTION
     Returns some useful information about layers.  Or, it would be useful if layers were implemented...   eWhat  may be given any of the follow-
     ing values:

      -  GLUT_HAS_OVERLAY

      -  GLUT_LAYER_IN_USE

      -  GLUT_NORMAL_DAMAGED
     0 unless the window system has told us that the normal layer is damaged (glutPostRedisplay() does not affect this).

      -  GLUT_OVERLAY_DAMAGED
      -1 if no layer in use.

      -  GLUT_OVERLAY_POSSIBLE

      -  GLUT_TRANSPARENT_INDEX
      -1 if no layer in use.

     All information relates to the  current window  and any overlay that it may have.

SEE ALSO
     glutSetOption(3) glutGet(3) glutDeviceGet(3) glutGetModifiers(3)

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