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Diffstat (limited to 'src/XLbx.c')
| -rw-r--r-- | src/XLbx.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/src/XLbx.c b/src/XLbx.c new file mode 100644 index 0000000..cf4ee16 --- /dev/null +++ b/src/XLbx.c @@ -0,0 +1,127 @@ +/* + * $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 + */ +#define NEED_EVENTS +#define NEED_REPLIES +#include "Xlibint.h" +#include "XLbx.h" +#include "lbxstr.h" +#include "Xext.h" +#include "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(); +static char *error_string(); +static Bool wire_to_event(); +static Status event_to_wire(); +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 (dpy, requestp, event_basep, error_basep) + Display *dpy; + int *requestp, *event_basep, *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(dpy) + Display *dpy; +{ + XExtDisplayInfo *info = find_display (dpy); + + if (XextHasExtension(info)) { + return info->codes->first_event; + } else { + return -1; + } +} + + +Bool XLbxQueryVersion(dpy, majorVersion, minorVersion) + Display *dpy; + int *majorVersion, *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 ... */ |