GLib.KeyFile.has_key

### Method

# GLib KeyFilehas_key

since: 2.6

#### Declaration [src]

    gboolean
    g_key_file_has_key (
      GKeyFile* key_file,
      const gchar* group_name,
      const gchar* key,
      GError** error
    )

#### Description [src]

Looks whether the key file has the key `key` in the group `group_name`.

Note that this function does not follow the rules for `GError` strictly; the return value both carries meaning and signals an error. To use this function, you must pass a `GError` pointer in `error`, and check whether it is not `NULL` to see if an error occurred.

Language bindings should use `g_key_file_get_value()` to test whether a key exists.

Available since: 2.6

This method is not directly available to language bindings.

#### Parameters

`group_name`

  Type: `const gchar*`

  A group name.

  The data is owned by the caller of the method.
  The value is a NUL terminated UTF-8 string.

`key`

  Type: `const gchar*`

  A key name.

  The data is owned by the caller of the method.
  The value is a NUL terminated UTF-8 string.

`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 `key` is a part of `group_name`, false otherwise.