|  |  |  | Flickcurl Flickr API Manual |  | 
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Search results can be made to return additional fields in the
photo results by using the extras configuration
of the search API.
(This applies to both results returning the 
flickcurl_photo struct as
well as syntax formats described in the next section.)
This is done by configuring the field extras in the
flickcurl_photos_list_params
structure containing a , (comma) separated list of the extra names
like name1,name2.
The known search 'extras' names and what they fields they return are as follows (at the time this documentation was built):
| date_taken | Date item was taken | 
| date_upload | Date item was uploaded | 
| geo | Geotagging latitude, longitude and accuracy | 
| icon_server | Item owner icon fields | 
| last_update | Date item was last updated | 
| license | Item License | 
| machine_tags | Machine tags | 
| media | Item Format: photo or video | 
| o_dims | Original item dimensions | 
| original_format | Original item secret and format | 
| owner_name | Item owner ID | 
| path_alias | Path alias for owner like /photos/USERNAME | 
| tags | Item clean tags (safe for HTML, URLs) | 
| url_c | URL of medium 800, 800 on longest size image | 
| url_m | URL of small, medium size image | 
| url_n | URL of small, 320 on longest side size image | 
| url_o | URL of original size image | 
| url_q | URL of large square 150x150 size image | 
| url_s | URL of small suqare 75x75 size image | 
| url_sq | URL of square size image | 
| url_t | URL of thumbnail, 100 on longest side size image | 
| views | Number of times item has been viewed | 
Use
flickcurl_get_extras_format_info()
to get the known extra names and descriptions at runtime.  
The following code fragment sets the extras field to the single
extra name original_format which adds to the the search results
flickcurl_photo objects
fields for the original item secret and original item format
(like "jpg").
flickcurl_photos_list_params list_params; flickcurl_photos_list_params_init(&list_params); list_params.extras = "original_format";