heading_update.h
Go to the documentation of this file.
/*
* Copyright © 2013 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Thomas Voß <thomas.voss@canonical.com>
*/
#ifndef UBUNTU_APPLICATION_LOCATION_HEADING_UPDATE_H_
#define UBUNTU_APPLICATION_LOCATION_HEADING_UPDATE_H_
#include <ubuntu/visibility.h>
#include <stdbool.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C"
{
#endif
typedef struct UbuntuApplicationLocationHeadingUpdate UALocationHeadingUpdate;
UBUNTU_DLL_PUBLIC void
ua_location_heading_update_ref(
UALocationHeadingUpdate *update);
UBUNTU_DLL_PUBLIC void
ua_location_heading_update_unref(
UALocationHeadingUpdate *update);
UBUNTU_DLL_PUBLIC uint64_t
ua_location_heading_update_get_timestamp(
UALocationHeadingUpdate *update);
UBUNTU_DLL_PUBLIC double
ua_location_heading_update_get_heading_in_degree(
UALocationHeadingUpdate *update);
#ifdef __cplusplus
}
#endif
#endif // UBUNTU_APPLICATION_LOCATION_HEADING_UPDATE_H_
ua_location_heading_update_ref
UBUNTU_DLL_PUBLIC void ua_location_heading_update_ref(UALocationHeadingUpdate *update)
Increments the reference count of the heading update instance.
ua_location_heading_update_unref
UBUNTU_DLL_PUBLIC void ua_location_heading_update_unref(UALocationHeadingUpdate *update)
Decrements the reference count of the heading update instance.
ua_location_heading_update_get_heading_in_degree
UBUNTU_DLL_PUBLIC double ua_location_heading_update_get_heading_in_degree(UALocationHeadingUpdate *update)
Queries the new heading from the update.
visibility.h
UALocationHeadingUpdate
struct UbuntuApplicationLocationHeadingUpdate UALocationHeadingUpdate
Opaque type encapsulating a heading update.
Definition: heading_update.h:36
UBUNTU_DLL_PUBLIC
#define UBUNTU_DLL_PUBLIC
Definition: visibility.h:26
ua_location_heading_update_get_timestamp
UBUNTU_DLL_PUBLIC uint64_t ua_location_heading_update_get_timestamp(UALocationHeadingUpdate *update)
Queries the timestamp of the heading update.