| 1 | /***********************************************************
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| 2 |
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| 3 | Copyright 1987, 1998 The Open Group
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| 4 |
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| 5 | Permission to use, copy, modify, distribute, and sell this software and its
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| 6 | documentation for any purpose is hereby granted without fee, provided that
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| 7 | the above copyright notice appear in all copies and that both that
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| 8 | copyright notice and this permission notice appear in supporting
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| 9 | documentation.
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| 10 |
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| 11 | The above copyright notice and this permission notice shall be included in
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| 12 | all copies or substantial portions of the Software.
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| 13 |
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| 14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 15 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 16 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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| 17 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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| 18 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| 19 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 20 |
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| 21 | Except as contained in this notice, the name of The Open Group shall not be
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| 22 | used in advertising or otherwise to promote the sale, use or other dealings
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| 23 | in this Software without prior written authorization from The Open Group.
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| 24 |
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| 25 |
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| 26 | Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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| 27 |
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| 28 | All Rights Reserved
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| 29 |
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| 30 | Permission to use, copy, modify, and distribute this software and its
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| 31 | documentation for any purpose and without fee is hereby granted,
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| 32 | provided that the above copyright notice appear in all copies and that
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| 33 | both that copyright notice and this permission notice appear in
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| 34 | supporting documentation, and that the name of Digital not be
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| 35 | used in advertising or publicity pertaining to distribution of the
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| 36 | software without specific, written prior permission.
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| 37 |
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| 38 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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| 39 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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| 40 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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| 41 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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| 42 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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| 43 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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| 44 | SOFTWARE.
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| 45 |
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| 46 | ******************************************************************/
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| 47 |
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| 48 | #ifndef CALLBACK_H
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| 49 | #define CALLBACK_H
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| 50 |
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| 51 | #include <X11/X.h> /* for GContext, Mask */
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| 52 | #include <X11/Xdefs.h> /* for Bool */
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| 53 | #include <X11/Xproto.h>
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| 54 | #include <X11/Xfuncproto.h>
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| 55 |
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| 56 | /*
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| 57 | * callback manager stuff
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| 58 | */
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| 59 |
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| 60 | #ifndef _XTYPEDEF_CALLBACKLISTPTR
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| 61 | typedef struct _CallbackList *CallbackListPtr; /* also in misc.h */
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| 62 | #define _XTYPEDEF_CALLBACKLISTPTR
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| 63 | #endif
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| 64 |
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| 65 | typedef void (*CallbackProcPtr) (
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| 66 | CallbackListPtr *, pointer, pointer);
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| 67 |
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| 68 | extern _X_EXPORT Bool AddCallback(
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| 69 | CallbackListPtr * /*pcbl*/,
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| 70 | CallbackProcPtr /*callback*/,
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| 71 | pointer /*data*/);
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| 72 |
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| 73 | extern _X_EXPORT Bool DeleteCallback(
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| 74 | CallbackListPtr * /*pcbl*/,
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| 75 | CallbackProcPtr /*callback*/,
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| 76 | pointer /*data*/);
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| 77 |
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| 78 | extern _X_EXPORT void _CallCallbacks(
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| 79 | CallbackListPtr * /*pcbl*/,
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| 80 | pointer /*call_data*/);
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| 81 |
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| 82 | static inline void
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| 83 | CallCallbacks(CallbackListPtr *pcbl, pointer call_data)
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| 84 | {
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| 85 | if (!pcbl || !*pcbl) return;
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| 86 | _CallCallbacks(pcbl, call_data);
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| 87 | }
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| 88 |
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| 89 | extern _X_EXPORT void DeleteCallbackList(
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| 90 | CallbackListPtr * /*pcbl*/);
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| 91 |
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| 92 | extern _X_EXPORT void InitCallbackManager(void);
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| 93 |
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| 94 | #endif /* CALLBACK_H */
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