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