## GUPnPDeviceInfo

GUPnPDeviceInfo — Base abstract class for querying device information.

## Synopsis

    struct              GUPnPDeviceInfo;
    GUPnPResourceFactory * gupnp_device_info_get_resource_factory
                                                            (GUPnPDeviceInfo *device_info);
    GUPnPContext *      gupnp_device_info_get_context       (GUPnPDeviceInfo *info);
    const char *        gupnp_device_info_get_location      (GUPnPDeviceInfo *info);
    const SoupURI *     gupnp_device_info_get_url_base      (GUPnPDeviceInfo *info);
    const char *        gupnp_device_info_get_udn           (GUPnPDeviceInfo *info);
    const char *        gupnp_device_info_get_device_type   (GUPnPDeviceInfo *info);
    char *              gupnp_device_info_get_friendly_name (GUPnPDeviceInfo *info);
    char *              gupnp_device_info_get_manufacturer  (GUPnPDeviceInfo *info);
    char *              gupnp_device_info_get_manufacturer_url
                                                            (GUPnPDeviceInfo *info);
    char *              gupnp_device_info_get_model_description
                                                            (GUPnPDeviceInfo *info);
    char *              gupnp_device_info_get_model_name    (GUPnPDeviceInfo *info);
    char *              gupnp_device_info_get_model_number  (GUPnPDeviceInfo *info);
    char *              gupnp_device_info_get_model_url     (GUPnPDeviceInfo *info);
    char *              gupnp_device_info_get_serial_number (GUPnPDeviceInfo *info);
    char *              gupnp_device_info_get_presentation_url
                                                            (GUPnPDeviceInfo *info);
    char *              gupnp_device_info_get_upc           (GUPnPDeviceInfo *info);
    char *              gupnp_device_info_get_icon_url      (GUPnPDeviceInfo *info,
                                                             const char *requested_mime_type,
                                                             int requested_depth,
                                                             int requested_width,
                                                             int requested_height,
                                                             gboolean prefer_bigger,
                                                             char **mime_type,
                                                             int *depth,
                                                             int *width,
                                                             int *height);
    GList *             gupnp_device_info_list_dlna_capabilities
                                                            (GUPnPDeviceInfo *info);
    char *              gupnp_device_info_get_description_value
                                                            (GUPnPDeviceInfo *info,
                                                             const char *element);
    GList *             gupnp_device_info_list_devices      (GUPnPDeviceInfo *info);
    GList *             gupnp_device_info_list_device_types (GUPnPDeviceInfo *info);
    GUPnPDeviceInfo *   gupnp_device_info_get_device        (GUPnPDeviceInfo *info,
                                                             const char *type);
    GList *             gupnp_device_info_list_services     (GUPnPDeviceInfo *info);
    GList *             gupnp_device_info_list_service_types
                                                            (GUPnPDeviceInfo *info);
    GUPnPServiceInfo *  gupnp_device_info_get_service       (GUPnPDeviceInfo *info,
                                                             const char *type);

## Object Hierarchy

      GObject
       +----GUPnPDeviceInfo
             +----GUPnPDevice
             +----GUPnPDeviceProxy

## Properties

      "context"                  GUPnPContext*         : Read / Write / Construct Only
      "device-type"              gchar*                : Read / Write / Construct Only
      "document"                 GUPnPXMLDoc*          : Write / Construct Only
      "element"                  gpointer              : Write / Construct Only
      "location"                 gchar*                : Read / Write / Construct Only
      "resource-factory"         GUPnPResourceFactory*  : Read / Write / Construct Only
      "udn"                      gchar*                : Read / Write / Construct Only
      "url-base"                 gpointer              : Read / Write / Construct Only

## Description

The GUPnPDeviceInfo base abstract class provides methods for querying device information.

## Details

### struct GUPnPDeviceInfo

    struct GUPnPDeviceInfo;

This struct contains private data only, and should be accessed using the functions below.

### gupnp_device_info_get_resource_factory ()

    GUPnPResourceFactory * gupnp_device_info_get_resource_factory
                                                            (GUPnPDeviceInfo *device_info);

Get the GUPnPResourceFactory used by the `device_info`.

`device_info` : | A GUPnPDeviceInfo
Returns : | A GUPnPResourceFactory. [transfer none]

### gupnp_device_info_get_context ()

    GUPnPContext *      gupnp_device_info_get_context       (GUPnPDeviceInfo *info);

Get the associated GUPnPContext.

`info` : | A GUPnPDeviceInfo
Returns : | A GUPnPContext. [transfer none]

### gupnp_device_info_get_location ()

    const char *        gupnp_device_info_get_location      (GUPnPDeviceInfo *info);

Get the location of the device description file.

`info` : | A GUPnPDeviceInfo
Returns : | A constant string.

### gupnp_device_info_get_url_base ()

    const SoupURI *     gupnp_device_info_get_url_base      (GUPnPDeviceInfo *info);

Get the URL base of this device.

`info` : | A GUPnPDeviceInfo
Returns : | A SoupURI.

### gupnp_device_info_get_udn ()

    const char *        gupnp_device_info_get_udn           (GUPnPDeviceInfo *info);

Get the Unique Device Name of the device.

`info` : | A GUPnPDeviceInfo
Returns : | A constant string.

### gupnp_device_info_get_device_type ()

    const char *        gupnp_device_info_get_device_type   (GUPnPDeviceInfo *info);

Get the UPnP device type.

`info` : | A GUPnPDeviceInfo
Returns : | A constant string, or `NULL`.

### gupnp_device_info_get_friendly_name ()

    char *              gupnp_device_info_get_friendly_name (GUPnPDeviceInfo *info);

Get the friendly name of the device.

`info` : | A GUPnPDeviceInfo
Returns : | A string, or `NULL`. `g_free()` after use.

### gupnp_device_info_get_manufacturer ()

    char *              gupnp_device_info_get_manufacturer  (GUPnPDeviceInfo *info);

Get the manufacturer of the device.

`info` : | A GUPnPDeviceInfo
Returns : | A string, or `NULL`. `g_free()` after use.

### gupnp_device_info_get_manufacturer_url ()

    char *              gupnp_device_info_get_manufacturer_url
                                                            (GUPnPDeviceInfo *info);

Get a URL pointing to the manufacturer's website.

`info` : | A GUPnPDeviceInfo
Returns : | A string, or `NULL`. `g_free()` after use.

### gupnp_device_info_get_model_description ()

    char *              gupnp_device_info_get_model_description
                                                            (GUPnPDeviceInfo *info);

Get the description of the device model.

`info` : | A GUPnPDeviceInfo
Returns : | A string, or `NULL`. `g_free()` after use.

### gupnp_device_info_get_model_name ()

    char *              gupnp_device_info_get_model_name    (GUPnPDeviceInfo *info);

Get the model name of the device.

`info` : | A GUPnPDeviceInfo
Returns : | A string, or `NULL`. `g_free()` after use.

### gupnp_device_info_get_model_number ()

    char *              gupnp_device_info_get_model_number  (GUPnPDeviceInfo *info);

Get the model number of the device.

`info` : | A GUPnPDeviceInfo
Returns : | A string, or `NULL`. `g_free()` after use.

### gupnp_device_info_get_model_url ()

    char *              gupnp_device_info_get_model_url     (GUPnPDeviceInfo *info);

Get a URL pointing to the device model's website.

`info` : | A GUPnPDeviceInfo
Returns : | A string, or `NULL`. `g_free()` after use.

### gupnp_device_info_get_serial_number ()

    char *              gupnp_device_info_get_serial_number (GUPnPDeviceInfo *info);

Get the serial number of the device.

`info` : | A GUPnPDeviceInfo
Returns : | A string, or `NULL`. `g_free()` after use.

### gupnp_device_info_get_presentation_url ()

    char *              gupnp_device_info_get_presentation_url
                                                            (GUPnPDeviceInfo *info);

Get a URL pointing to the device's presentation page, for web-based administration.

`info` : | A GUPnPDeviceInfo
Returns : | A string, or `NULL`. `g_free()` after use.

### gupnp_device_info_get_upc ()

    char *              gupnp_device_info_get_upc           (GUPnPDeviceInfo *info);

Get the Universal Product Code of the device.

`info` : | A GUPnPDeviceInfo
Returns : | A string, or `NULL`. `g_free()` after use.

### gupnp_device_info_get_icon_url ()

    char *              gupnp_device_info_get_icon_url      (GUPnPDeviceInfo *info,
                                                             const char *requested_mime_type,
                                                             int requested_depth,
                                                             int requested_width,
                                                             int requested_height,
                                                             gboolean prefer_bigger,
                                                             char **mime_type,
                                                             int *depth,
                                                             int *width,
                                                             int *height);

Get a URL pointing to the icon most closely matching the given criteria, or `NULL`. If `requested_mime_type` is set, only icons with this mime type will be returned. If `requested_depth` is set, only icons with this or lower depth will be returned. If `requested_width` and/or `requested_height` are set, only icons that are this size or smaller are returned, unless `prefer_bigger` is set, in which case the next biggest icon will be returned. The returned strings should be freed.

`info` : | A GUPnPDeviceInfo
`requested_mime_type` : | The requested file format, or `NULL` for any. [allow-none][transfer none]
`requested_depth` : | The requested color depth, or -1 for any
`requested_width` : | The requested width, or -1 for any
`requested_height` : | The requested height, or -1 for any
`prefer_bigger` : | `TRUE` if a bigger, rather than a smaller icon should be returned if no exact match could be found
`mime_type` : | The location where to store the the format of the returned icon, or `NULL`. The returned string should be freed after use. [out][allow-none]
`depth` : | (out) (allow-none) : The location where to store the depth of the returned icon, or `NULL`
`width` : | (out) (allow-none) : The location where to store the width of the returned icon, or `NULL`
`height` : | (out) (allow-none) : The location where to store the height of the returned icon, or `NULL`
Returns : | a string, or `NULL`. `g_free()` after use. [transfer full]

### gupnp_device_info_list_dlna_capabilities ()

    GList *             gupnp_device_info_list_dlna_capabilities
                                                            (GUPnPDeviceInfo *info);

Get a GList of strings that represent the device capabilities as announced in the device description file using the <dlna:X_DLNACAP> element.

`info` : | A GUPnPDeviceInfo
Returns : | a GList of newly allocated strings or `NULL` if the device description doesn't contain the <dlna:X_DLNACAP> element. [transfer full][element-type utf8]

### gupnp_device_info_get_description_value ()

    char *              gupnp_device_info_get_description_value
                                                            (GUPnPDeviceInfo *info,
                                                             const char *element);

This function provides generic access to the contents of arbitrary elements in the device description file.

`info` : | A GUPnPDeviceInfo
`element` : | Name of the description element to retrieve
Returns : | a newly allocated string or `NULL` if the device description doesn't contain the given `element`

### gupnp_device_info_list_devices ()

    GList *             gupnp_device_info_list_devices      (GUPnPDeviceInfo *info);

Get a GList of new objects implementing GUPnPDeviceInfo representing the devices directly contained in `info`. The returned list should be `g_list_free()`'d and the elements should be `g_object_unref()`'d.

Note that devices are not cached internally, so that every time you call this function new objects are created. The application must cache any used devices if it wishes to keep them around and re-use them.

`info` : | A GUPnPDeviceInfo
Returns : | a GList of new GUPnPDeviceInfo objects. [element-type GUPnP.DeviceInfo][transfer full]

### gupnp_device_info_list_device_types ()

    GList *             gupnp_device_info_list_device_types (GUPnPDeviceInfo *info);

Get a GList of strings representing the types of the devices directly contained in `info`.

`info` : | A GUPnPDeviceInfo
Returns : | A GList of strings. The elements should be `g_free()`'d and the list should be `g_list_free()`'d. [element-type utf8][transfer full]

### gupnp_device_info_get_device ()

    GUPnPDeviceInfo *   gupnp_device_info_get_device        (GUPnPDeviceInfo *info,
                                                             const char *type);

Get the service with type `type` directly contained in `info` as a new object implementing GUPnPDeviceInfo, or `NULL` if no such device was found. The returned object should be unreffed when done.

Note that devices are not cached internally, so that every time you call this function a new object is created. The application must cache any used devices if it wishes to keep them around and re-use them.

`info` : | A GUPnPDeviceInfo
`type` : | The type of the device to be retrieved.
Returns : | A new GUPnPDeviceInfo. [transfer full]

### gupnp_device_info_list_services ()

    GList *             gupnp_device_info_list_services     (GUPnPDeviceInfo *info);

Get a GList of new objects implementing GUPnPServiceInfo representing the services directly contained in `info`. The returned list should be `g_list_free()`'d and the elements should be `g_object_unref()`'d.

Note that services are not cached internally, so that every time you call function new objects are created. The application must cache any used services if it wishes to keep them around and re-use them.

`info` : | A GUPnPDeviceInfo
Returns : | (element-type GUPnP.ServiceInfo) (transfer full) : A GList of new GUPnPServiceInfo objects.

### gupnp_device_info_list_service_types ()

    GList *             gupnp_device_info_list_service_types
                                                            (GUPnPDeviceInfo *info);

Get a GList of strings representing the types of the services directly contained in `info`.

`info` : | A GUPnPDeviceInfo
Returns : | A GList of strings. The elements should be `g_free()`'d and the list should be `g_list_free()`'d. [element-type utf8][transfer full]

### gupnp_device_info_get_service ()

    GUPnPServiceInfo *  gupnp_device_info_get_service       (GUPnPDeviceInfo *info,
                                                             const char *type);

Get the service with type `type` directly contained in `info` as a new object implementing GUPnPServiceInfo, or `NULL` if no such device was found. The returned object should be unreffed when done.

Note that services are not cached internally, so that every time you call this function a new object is created. The application must cache any used services if it wishes to keep them around and re-use them.

`info` : | A GUPnPDeviceInfo
`type` : | The type of the service to be retrieved.
Returns : | A GUPnPServiceInfo. [transfer full]

## Property Details

### The `"context"` property

      "context"                  GUPnPContext*         : Read / Write / Construct Only

The GUPnPContext to use.

### The `"device-type"` property

      "device-type"              gchar*                : Read / Write / Construct Only

The device type.

Default value: NULL

### The `"document"` property

      "document"                 GUPnPXMLDoc*          : Write / Construct Only

Private property.

Stability Level: Private

### The `"element"` property

      "element"                  gpointer              : Write / Construct Only

Private property.

Stability Level: Private

### The `"location"` property

      "location"                 gchar*                : Read / Write / Construct Only

The location of the device description file.

Default value: NULL

### The `"resource-factory"` property

      "resource-factory"         GUPnPResourceFactory*  : Read / Write / Construct Only

The resource factory to use. Set to NULL for default factory.

### The `"udn"` property

      "udn"                      gchar*                : Read / Write / Construct Only

The UDN of this device.

Default value: NULL

### The `"url-base"` property

      "url-base"                 gpointer              : Read / Write / Construct Only

The URL base (SoupURI).