X Record Extension кто-нибудь пользовал?

    ctrl_disp = XOpenDisplay(NULL);
    data_disp = XOpenDisplay(NULL);

    if (!ctrl_disp || !data_disp) {
        exit(1);
    }

    /*
     * we must set the ctrl_disp to sync mode, or, when we the enalbe
     * context in data_disp, there will be a fatal X error !!!
     */
    XSynchronize(ctrl_disp, True);

    int major, minor;
    if (!XRecordQueryVersion(ctrl_disp, &major, &minor)) {
        exit(2);
    }

    // здесь версия 1.13
    printf("RECORD extension is version is %d.%d\n", major, minor);

    XRecordRange *rr;
    XRecordClientSpec rcs;
    XRecordContext rc;

    if ( (rr = XRecordAllocRange()) == NULL ) {
        exit(3);
    }

    rr->device_events.first = KeyPress;
    rr->device_events.last = MotionNotify;
    rcs = XRecordAllClients;

    if ( (rc = XRecordCreateContext(ctrl_disp, 0, &rcs, 1, &rr, 1)) == NULL ) {
        exit(4);
    }
/*
Здесь падает с такой ошибкой:
RECORD extension for local server is version is 1.13
X Error of failed request:  XRecordBadContext
  Major opcode of failed request:  128 (RECORD)
  Minor opcode of failed request:  5 (XRecordEnableContext)
*/
    if (!XRecordEnableContextAsync(data_disp, rc, event_callback, NULL)) {
        exit(5);
    }

XRecordEnableContextAsync(dpy, context, callback, closure)
    Display 		*dpy;
    XRecordContext 	 context;
    XRecordInterceptProc callback;
    XPointer		 closure;
{
    XExtDisplayInfo *info = find_display (dpy);
    register xRecordEnableContextReq *req;

    xRecordEnableContextReply rep = {};
    struct reply_buffer *reply;
    enum parser_return status;
    _XAsyncHandler *async;
    record_async_state *async_state;

    XRecordCheckExtension (dpy, info, 0);
    async = (_XAsyncHandler *)Xmalloc(sizeof(_XAsyncHandler) +
        sizeof(record_async_state));
    if (!async)
        return 0;
    async_state = (record_async_state *)(async + 1);

    LockDisplay(dpy);
    GetReq(RecordEnableContext, req);

    req->reqType = info->codes->major_opcode;
    req->recordReqType = X_RecordEnableContext;
    req->context = context;

    /* Get the StartOfData reply. */
    /* This code should match that in XRecordEnableContext */
    _XReply (dpy, (xReply *)&rep, 0, xFalse);
/*
Падает на _XReply
*/

// ...
}