EBook.BookClient.modify_contacts_sync

### Method

# EBook BookClientmodify_contacts_sync

since: 3.4

#### Declaration [src]

    gboolean
    e_book_client_modify_contacts_sync (
      EBookClient* client,
      GSList* contacts,
      guint32 opflags,
      GCancellable* cancellable,
      GError** error
    )

#### Description [src]

Applies the changes made to `contacts` to the stored versions in `client`.

Available since: 3.4

#### Parameters

`contacts`

  Type: A list of `EContact*`

  A `GSList` of `EContact` objects.

  The data is owned by the caller of the method.

`opflags`

  Type: `EBookOperationFlags`

  Bit-or of `EBookOperationFlags`.

`cancellable`

  Type: `GCancellable`

  A `GCancellable`; can be `NULL`.

  The argument can be `NULL`.
  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 method 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`

`TRUE` if successful, `FALSE` otherwise.