Gio.Settings.set_double

### Method

# Gio Settingsset_double

since: 2.26

#### Declaration

    gboolean
    g_settings_set_double (
      GSettings* settings,
      const gchar* key,
      gdouble value
    )

#### Description

Sets `key` in `settings` to `value`.

A convenience variant of `g_settings_set()` for doubles.

It is a programmer error to give a `key` that isn’t specified as having a ‘double’ type in the schema for `settings`.

Available since: 2.26

#### Parameters

`key`

  Type: `const gchar*`

  The name of the key to set.

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

`value`

  Type: `gdouble`

  The value to set it to.

#### Return value

Type: `gboolean`

`TRUE` if setting the key succeeded, `FALSE` if the key was not writable.