Clapper.Extractable.extract
Description: Reference for Clapper.Extractable.extract

### Virtual Method

# Clapper Extractableextract

since: 0.8

#### Declaration [src]

    gboolean
    extract (
      ClapperExtractable* extractable,
      GUri* uri,
      ClapperHarvest* harvest,
      GCancellable* cancellable,
      GError** error
    )

#### Description [src]

Extract data and fill harvest.

Available since: 0.8

#### Parameters

`uri`

  Type: `GUri`

  A `GUri`.

  The data is owned by the caller of the method.

`harvest`

  Type: `ClapperHarvest`

  A `ClapperHarvest` to be filled.

  The data is owned by the caller of the method.

`cancellable`

  Type: `GCancellable`

  A `GCancellable` object.

  The data is owned by the caller of the method.

`error`

  Type: `GError **`

  The return location for a recoverable error.

  The argument can be `NULL`.
  If the return location is not `NULL`, then you must initialize it to a `NULL` `GError*`.
  The argument will be left initialized to `NULL` by the virtual function if there are no errors.
  In case of error, the argument will be set to a newly allocated `GError`; the caller will take ownership of the data, and be responsible for freeing it.

#### Return value

Type: `gboolean`

Whether extraction was successful.