glutcopycolormap(3glut) [suse man page]

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 identically 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, glutGetColor, glutCreateWindow

AUTHOR

       Mark J. Kilgard (mjk@nvidia.com)

GLUT
									3.7						   glutCopyColormap(3GLUT)

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 display mode. If false, glutEstablishOver-
	       lay 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  trig-
	       gered. 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 trig-
	       gered. Calling glutPostRedisplay or glutPostOverlayRedisplay 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, glutUseOverlay, glutCreateWindow, glutSetColor

AUTHOR

       Mark J. Kilgard (mjk@nvidia.com)

GLUT
									3.7						       glutLayerGet(3GLUT)