ApertureDeviceManager

ApertureDeviceManager — Finds and monitors camera devices

Functions

Properties

int num-cameras Read

Signals

void camera-added Run First
void camera-removed Run First

Types and Values

Object Hierarchy

    GObject
    ╰── ApertureDeviceManager

Description

ApertureDeviceManager finds and monitors camera devices that can be used in Aperture. It provides functions for listing cameras, and signals for detecting when cameras are plugged in or unplugged.

Functions

aperture_device_manager_get_instance ()

ApertureDeviceManager *
aperture_device_manager_get_instance (void);

Gets an ApertureDeviceManager.

Returns

an ApertureDeviceManager.

[transfer full]

Since: 0.1


aperture_device_manager_get_num_cameras ()

int
aperture_device_manager_get_num_cameras
                               (ApertureDeviceManager *self);

Gets the number of available cameras.

Parameters

Returns

the number of available cameras

Since: 0.1


aperture_device_manager_next_camera ()

ApertureCamera *
aperture_device_manager_next_camera (ApertureDeviceManager *self,
                                     ApertureCamera *camera);

Gets the next camera index after camera . If there are no cameras available, returns NULL.

If camera is NULL, the first camera will be returned.

Parameters

self

an ApertureDeviceManager

 

camera

an ApertureCamera.

[nullable]

Returns

the next camera, or NULL if there are no cameras.

[transfer full]

Since: 0.1


aperture_device_manager_get_camera ()

ApertureCamera *
aperture_device_manager_get_camera (ApertureDeviceManager *self,
                                    int idx);

Gets an ApertureCamera object for the given camera index.

Parameters

self

an ApertureDeviceManager

 

idx

a camera index

 

Returns

the ApertureCamera at idx .

[transfer full]

Types and Values

APERTURE_TYPE_DEVICE_MANAGER

#define APERTURE_TYPE_DEVICE_MANAGER (aperture_device_manager_get_type())

ApertureDeviceManager

typedef struct _ApertureDeviceManager ApertureDeviceManager;

Property Details

The “num-cameras” property

  “num-cameras”              int

The number of cameras available.

Owner: ApertureDeviceManager

Flags: Read

Allowed values: >= 0

Default value: 0

Signal Details

The “camera-added” signal

void
user_function (ApertureDeviceManager *self,
               ApertureCamera        *camera_index,
               gpointer               user_data)

Emitted when a camera is discovered.

Parameters

self

the ApertureDeviceManager

 

camera_index

the new camera

 

user_data

user data set when the signal handler was connected.

 

Flags: Run First

Since: 0.1


The “camera-removed” signal

void
user_function (ApertureDeviceManager *self,
               ApertureCamera        *camera_index,
               gpointer               user_data)

Emitted when a camera is removed (typically because it has been unplugged).

Parameters

self

the ApertureDeviceManager

 

camera_index

the (now removed) camera

 

user_data

user data set when the signal handler was connected.

 

Flags: Run First

Since: 0.1