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+/*
+ * tk3d.h --
+ *
+ *	Declarations of types and functions shared by the 3d border
+ *	module.
+ *
+ * Copyright (c) 1996 by Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ *
+ * SCCS: @(#) tk3d.h 1.1 96/11/04 13:52:59
+ */
+
+#ifndef _TK3D
+#define _TK3D
+
+#include <tkInt.h>
+
+/*
+ * One of the following data structures is allocated for
+ * each 3-D border currently in use.  Structures of this
+ * type are indexed by borderTable, so that a single
+ * structure can be shared for several uses.
+ */
+
+typedef struct {
+    Screen *screen;		/* Screen on which the border will be used. */
+    Visual *visual;		/* Visual for all windows and pixmaps using
+				 * the border. */
+    int depth;			/* Number of bits per pixel of drawables where
+				 * the border will be used. */
+    Colormap colormap;		/* Colormap out of which pixels are
+				 * allocated. */
+    int refCount;		/* Number of different users of
+				 * this border.  */
+    XColor *bgColorPtr;		/* Background color (intensity
+				 * between lightColorPtr and
+				 * darkColorPtr). */
+    XColor *darkColorPtr;	/* Color for darker areas (must free when
+				 * deleting structure). NULL means shadows
+				 * haven't been allocated yet.*/
+    XColor *lightColorPtr;	/* Color used for lighter areas of border
+				 * (must free this when deleting structure).
+				 * NULL means shadows haven't been allocated
+				 * yet. */
+    Pixmap shadow;		/* Stipple pattern to use for drawing
+				 * shadows areas.  Used for displays with
+				 * <= 64 colors or where colormap has filled
+				 * up. */
+    GC bgGC;			/* Used (if necessary) to draw areas in
+				 * the background color. */
+    GC darkGC;			/* Used to draw darker parts of the
+				 * border. None means the shadow colors
+				 * haven't been allocated yet.*/
+    GC lightGC;			/* Used to draw lighter parts of
+				 * the border. None means the shadow colors
+				 * haven't been allocated yet. */
+    Tcl_HashEntry *hashPtr;	/* Entry in borderTable (needed in
+				 * order to delete structure). */
+} TkBorder;
+
+
+/*
+ * Maximum intensity for a color:
+ */
+
+#define MAX_INTENSITY 65535
+
+/*
+ * Declarations for platform specific interfaces used by this module.
+ */
+
+EXTERN TkBorder *	TkpGetBorder _ANSI_ARGS_((void));
+EXTERN void		TkpGetShadows _ANSI_ARGS_((TkBorder *borderPtr,
+			    Tk_Window tkwin));
+EXTERN void		TkpFreeBorder _ANSI_ARGS_((TkBorder *borderPtr));
+
+#endif /* _TK3D */