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+/* $XFree86: xc/include/extensions/xtraplib.h,v 1.1 2001/11/02 23:29:26 dawes Exp $ */
+#ifndef __XTRAPLIB__
+#define __XTRAPLIB__ 
+
+
+/*****************************************************************************
+Copyright 1987, 1988, 1989, 1990, 1991, 1994 by Digital Equipment Corp., 
+Maynard, MA
+
+Permission to use, copy, modify, and distribute this software and its 
+documentation for any purpose and without fee is hereby granted, 
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in 
+supporting documentation, and that the name of Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.  
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+*****************************************************************************/
+/*
+ *
+ *  CONTRIBUTORS:
+ *
+ *      Dick Annicchiarico
+ *      Robert Chesler
+ *      Dan Coutu
+ *      Gene Durso
+ *      Marc Evans
+ *      Alan Jamison
+ *      Mark Henry
+ *      Ken Miller
+ *
+ *  DESCRIPTION:
+ *      This header file describes all the structures/constants required
+ *      for interfacing with the client toolkit *except* the common
+ *      client/extension definitions in xtrapdi.h.  Namely, *no* extension-
+ *      only information or client/extension information can be found here.
+ */
+#ifdef SMT
+#define NEED_EVENTS
+#define NEED_REPLIES
+#endif
+#include <X11/Xlib.h>
+#include <X11/Intrinsic.h>
+#include <X11/extensions/xtrapdi.h>
+#include <X11/extensions/xtrapemacros.h>
+
+typedef struct  /* Callback structure */
+{
+    void_function func;
+    BYTE          *data;
+} XETrapCB;
+
+/* Data structure for setting trap context */
+typedef struct
+{
+    CARD8       tc_flags[2L];  /* Toolkit-side specific flags */
+    XETrapCfg   v;             /* XTrap configuration values */
+    XETrapCB    *req_cb;       /* Pointer to Request Callbacks */
+    XETrapCB    *evt_cb;       /* Pointer to Event Callbacks (starting at 2) */
+    CARD32      last_time B32; /* Last (delta) timestamp */
+} XETCValues;
+
+    /* bits 0 thru 6 are formerly "families" (now obsolete) */
+#define XETCDeltaTimes             7
+#define XETCTrapActive             8
+    /* bits 9 thru 15 are reserved for future expansion */
+
+/* Values bit masks (used when determining what's dirty */
+#define TCStatistics               (1L<<0L)
+#define TCRequests                 (1L<<1L)
+#define TCEvents                   (1L<<2L)
+#define TCMaxPacket                (1L<<3L)
+#define TCCmdKey                   (1L<<4L)
+#define TCTimeStamps               (1L<<5L)
+#define TCWinXY                    (1L<<6L)
+#define TCXInput                   (1L<<7L)
+#define TCReqCBs                   (1L<<8L)
+#define TCEvtCBs                   (1L<<9L)
+#define TCCursor                   (1L<<10L)
+#define TCColorReplies             (1L<<11L)
+#define TCGrabServer               (1L<<12L)
+
+/* This is the representation we use in the library code for XLib transport */
+typedef struct {
+    int type;
+    unsigned long serial;
+    Bool synthetic;
+    Display *display;
+    int detail;
+    unsigned long idx;
+    unsigned char data[sz_EventData];
+} XETrapDataEvent;
+
+/* Trap Context structure for maintaining XTrap State for client */
+typedef struct _XETC 
+{
+    struct _XETC *next;         /* Ptr to next linked-listed TC */
+    Display      *dpy;          /* Display ptr of current TC */
+    INT32        eventBase /*B32*/; /* First event value */
+    INT32        errorBase /*B32*/; /* First error value */
+    INT32        extOpcode /*B32*/; /* Major opcode of the extension */
+    BYTE         *xbuff;        /* Pointer to buffer for XLib Communications */
+    CARD16       xmax_size /*B16*/; /* Max Size of a request */
+    XExtData     *ext_data;     /* hook for extension to hang data */
+    /* 
+     *  The following are initialized with the client-side version number
+     *  However, when either a GetAvailable or GetVersion reply is received,
+     *  these values are updated with the *oldest* version numbers.
+     */
+    CARD16       release /*B16*/;   /* The extension release number */
+    CARD16       version /*B16*/;   /* The xtrap extension version number */
+    CARD16       revision /*B16*/;  /* The xtrap extension revision number */
+    CARD16       protocol /*B16*/;  /* The xtrap extension protocol number */
+    unsigned     dirty /*B32*/;     /* cache dirty bits */
+    XETCValues   values;        /* shadow structure of values */
+    Boolean      (*eventFunc[XETrapNumberEvents])(XETrapDataEvent *event, struct _XETC *tc);
+} XETC;
+
+
+#endif /* __XTRAPLIB__ */