tesseract/viewer/evntlst.h
2007-03-07 20:03:40 +00:00

52 lines
2.1 KiB
C

/**********************************************************************
* File: evntlst.h (Formerly eventlst.h)
* Description: Code to manipulate lists of events.
* Author: Ray Smith
* Created: Fri Nov 01 11:02:52 GMT 1991
*
* (C) Copyright 1991, Hewlett-Packard Ltd.
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
** http://www.apache.org/licenses/LICENSE-2.0
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*
**********************************************************************/
#ifndef EVNTLST_H
#define EVNTLST_H
#include "sbgtypes.h"
extern BOOL8 event_waiting; //anything new in queue
#ifdef __UNIX__
#include "varable.h"
extern BOOL8 handler_set; //true if signal handler on
extern STRING_VAR_H (events_logfile, "", "File to log events to");
extern STRING_VAR_H (events_playback, "", "File to read events from");
void event_handler( //signal handler
int, //signal
int, //code
struct sigcontext *scp //info for sigvector
);
BOOL8 check_event( /*test for event */
INT16 fd, /*window to wait on */
BOOL8 wait /*set if waiting */
);
#else /* */
extern HANDLE event_sem; //event lock
void event_reader( /*read events */
void *param /*file descriptor */
);
#endif
void add_event( /*add an event */
GRAPHICS_EVENT *event /*event to add */
);
void lock_events(); //lock
void unlock_events(); //lock
#endif