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glutCopyColormap(3GLUT)                             GLUT                             glutCopyColormap(3GLUT)



NAME
       glutCopyColormap  -  copies  the logical colormap for the layer in use from a specified window to the
       current window.

SYNTAX
       void glutCopyColormap(int win);

ARGUMENTS
       win       The identifier of the window to copy the logical colormap from.

DESCRIPTION
       glutCopyColormap copies (lazily if possible to promote sharing) the logical colormap from a specified
       window  to  the  current  window's layer in use. The copy will be from the normal plane to the normal
       plane; or from the overlay to the overlay (never across different layers). Once a colormap  has  been
       copied, avoid setting cells in the colormap with glutSetColor since that will force an actual copy of
       the colormap if it was previously copied by reference. glutCopyColormap should only  be  called  when
       both the current window and the win window are color index windows.

EXAMPLE
       Here  is an example of how to create two color index GLUT windows with their colormaps loaded identi-cally identically
       cally and so that the windows are likely to share the same colormap:

         int win1, win2;

         glutInitDisplayMode(GLUT_INDEX);
         win1 = glutCreateWindow("first color index win");
         glutSetColor(0, 0.0, 0.0, 0.0);  /* black */
         glutSetColor(1, 0.5, 0.5, 0.5);  /* gray */
         glutSetColor(2, 1.0, 1.0, 1.0);  /* black */
         glutSetColor(3, 1.0, 0.0, 0.0);  /* red */
         win2 = glutCreateWindow("second color index win");
         glutCopyColormap(win1);


SEE ALSO
       glutSetColor(3G), glutGetColor(3G), glutCreateWindow(3G)


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



GLUT                                                 3.7                             glutCopyColormap(3GLUT)