XOrg/headers/native/src/X11/CallbackI.h

   1 /* $Xorg: CallbackI.h,v 1.4 2001/02/09 02:03:54 xorgcvs Exp $ */
   2 /***********************************************************
   3
   4 Copyright 1987, 1988, 1998  The Open Group
   5
   6 Permission to use, copy, modify, distribute, and sell this software and its
   7 documentation for any purpose is hereby granted without fee, provided that
   8 the above copyright notice appear in all copies and that both that
   9 copyright notice and this permission notice appear in supporting
  10 documentation.
  11
  12 The above copyright notice and this permission notice shall be included in
  13 all copies or substantial portions of the Software.
  14
  15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  18 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  19 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  20 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  21
  22 Except as contained in this notice, the name of The Open Group shall not be
  23 used in advertising or otherwise to promote the sale, use or other dealings
  24 in this Software without prior written authorization from The Open Group.
  25
  26
  27 Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
  28
  29                         All Rights Reserved
  30
  31 Permission to use, copy, modify, and distribute this software and its
  32 documentation for any purpose and without fee is hereby granted,
  33 provided that the above copyright notice appear in all copies and that
  34 both that copyright notice and this permission notice appear in
  35 supporting documentation, and that the name of Digital not be
  36 used in advertising or publicity pertaining to distribution of the
  37 software without specific, written prior permission.
  38
  39 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  40 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  41 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  42 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  43 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  44 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  45 SOFTWARE.
  46
  47 ******************************************************************/
  48 /* $XFree86$ */
  49
  50 /****************************************************************
  51  *
  52  * Callbacks
  53  *
  54  ****************************************************************/
  55
  56 typedef XrmResource **CallbackTable;
  57
  58 #define _XtCBCalling 1
  59 #define _XtCBFreeAfterCalling 2
  60
  61 typedef struct internalCallbackRec {
  62     unsigned short count;
  63     char           is_padded;   /* contains NULL padding for external form */
  64     char           call_state;  /* combination of _XtCB{FreeAfter}Calling */
  65 #ifdef LONG64
  66     unsigned int   align_pad;   /* padding to align callback list */
  67 #endif
  68     /* XtCallbackList */
  69 } InternalCallbackRec, *InternalCallbackList;
  70
  71 typedef Boolean (*_XtConditionProc)(
  72     XtPointer   /* data */
  73 );
  74
  75 extern void _XtAddCallback(
  76     InternalCallbackList*       /* callbacks */,
  77     XtCallbackProc              /* callback */,
  78     XtPointer                   /* closure */
  79 );
  80
  81 extern void _XtAddCallbackOnce(
  82     InternalCallbackList*       /* callbacks */,
  83     XtCallbackProc              /* callback */,
  84     XtPointer                   /* closure */
  85 );
  86
  87 extern InternalCallbackList _XtCompileCallbackList(
  88     XtCallbackList              /* xtcallbacks */
  89 );
  90
  91 extern XtCallbackList _XtGetCallbackList(
  92     InternalCallbackList*       /* callbacks */
  93 );
  94
  95 extern void _XtRemoveAllCallbacks(
  96     InternalCallbackList*       /* callbacks */
  97 );
  98
  99 extern void _XtRemoveCallback(
 100     InternalCallbackList*       /* callbacks */,
 101     XtCallbackProc              /* callback */,
 102     XtPointer                   /* closure */
 103 );
 104
 105 extern void _XtPeekCallback(
 106     Widget                      /* widget */,
 107     XtCallbackList              /* callbacks */,
 108     XtCallbackProc *            /* callback */,
 109     XtPointer *                 /* closure */
 110 );
 111
 112 extern void _XtCallConditionalCallbackList(
 113     Widget                      /* widget */,
 114     XtCallbackList              /* callbacks */,
 115     XtPointer                   /* call_data */,
 116     _XtConditionProc            /* cond_proc */
 117 );