This is the value that would be read if g_settings_reset() were to be
called on the key.
Note that this may be a different value than returned by
g_settings_schema_key_get_default_value() if the system administrator
has provided a default value.
Comparing the return values of g_settings_get_default_value() and
g_settings_get_value() is not sufficient for determining if a value
has been set because the user may have explicitly set the value to
something that happens to be equal to the default. The difference
here is that if the default changes in the future, the user's key
will still be set.
This function may be useful for adding an indication to a UI of what
the default value was before the user set it.
It is a programmer error to give a @key that isn't contained in the
schema for @settings.
Gets the "default value" of a key.
This is the value that would be read if g_settings_reset() were to be called on the key.
Note that this may be a different value than returned by g_settings_schema_key_get_default_value() if the system administrator has provided a default value.
Comparing the return values of g_settings_get_default_value() and g_settings_get_value() is not sufficient for determining if a value has been set because the user may have explicitly set the value to something that happens to be equal to the default. The difference here is that if the default changes in the future, the user's key will still be set.
This function may be useful for adding an indication to a UI of what the default value was before the user set it.
It is a programmer error to give a @key that isn't contained in the schema for @settings.