1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
/*
* $Xorg: XLbx.c,v 1.3 2000/08/17 19:45:51 cpqbld Exp $
*
* Copyright 1992 Network Computing Devices
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, 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 NCD. not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. NCD. makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* NCD. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL NCD.
* 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.
*
* Author: Keith Packard, Network Computing Devices
*/
/* $XFree86: xc/lib/Xext/XLbx.c,v 1.4 2002/10/16 00:37:27 dawes Exp $ */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <X11/Xlibint.h>
#include <X11/extensions/XLbx.h>
#include <X11/extensions/lbxproto.h>
#include <X11/extensions/Xext.h>
#include <X11/extensions/extutil.h>
static XExtensionInfo _lbx_info_data;
static XExtensionInfo *lbx_info = &_lbx_info_data;
static /* const */ char *lbx_extension_name = LBXNAME;
#define LbxCheckExtension(dpy,i,val) \
XextCheckExtension (dpy, i, lbx_extension_name, val)
static int close_display(Display *dpy, XExtCodes *codes);
static char *error_string(Display *dpy, int code, XExtCodes *codes,
char *buf, int n);
static /* const */ XExtensionHooks lbx_extension_hooks = {
NULL, /* create_gc */
NULL, /* copy_gc */
NULL, /* flush_gc */
NULL, /* free_gc */
NULL, /* create_font */
NULL, /* free_font */
close_display, /* close_display */
NULL, /* wire_to_event */
NULL, /* event_to_wire */
NULL, /* error */
error_string, /* error_string */
};
static /* const */ char *lbx_error_list[] = {
"BadLbxClient", /* BadLbxClient */
};
static XEXT_GENERATE_FIND_DISPLAY (find_display, lbx_info, lbx_extension_name,
&lbx_extension_hooks, LbxNumberEvents, NULL)
static XEXT_GENERATE_CLOSE_DISPLAY (close_display, lbx_info)
static XEXT_GENERATE_ERROR_STRING (error_string, lbx_extension_name,
LbxNumberErrors, lbx_error_list)
Bool XLbxQueryExtension (
Display *dpy,
int *requestp, int *event_basep, int *error_basep)
{
XExtDisplayInfo *info = find_display (dpy);
if (XextHasExtension(info)) {
*requestp = info->codes->major_opcode;
*event_basep = info->codes->first_event;
*error_basep = info->codes->first_error;
return True;
} else {
return False;
}
}
int XLbxGetEventBase(Display *dpy)
{
XExtDisplayInfo *info = find_display (dpy);
if (XextHasExtension(info)) {
return info->codes->first_event;
} else {
return -1;
}
}
Bool XLbxQueryVersion(Display *dpy, int *majorVersion, int *minorVersion)
{
XExtDisplayInfo *info = find_display (dpy);
xLbxQueryVersionReply rep;
register xLbxQueryVersionReq *req;
LbxCheckExtension (dpy, info, False);
LockDisplay(dpy);
GetReq(LbxQueryVersion, req);
req->reqType = info->codes->major_opcode;
req->lbxReqType = X_LbxQueryVersion;
if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
UnlockDisplay(dpy);
SyncHandle();
return False;
}
*majorVersion = rep.majorVersion;
*minorVersion = rep.minorVersion;
UnlockDisplay(dpy);
SyncHandle();
return True;
}
/* all other requests will run after Xlib has lost the wire ... */
|
