Gtk.PrintSettings.get_length

### Method

# Gtk PrintSettingsget_length

#### Declaration [src]

    double
    gtk_print_settings_get_length (
      GtkPrintSettings* settings,
      const char* key,
      GtkUnit unit
    )

#### Description [src]

Returns the value associated with `key`, interpreted as a length.

The returned value is converted to `units`.

#### Parameters

`key` | `const char*`
| A key.
| The data is owned by the caller of the function.
| The string is a NUL terminated UTF-8 string.
`unit` | `GtkUnit`
| The unit of the return value.

#### Return value

Returns: | `double`
| The length value of `key`, converted to `unit`.