Obtain a pointer to a #GdaDataHandler which can manage #GValue values of type for_type. The returned
data handler will be adapted to use the current locale information (for example dates will be formatted
taking into account the locale).
The returned pointer is null if there is no default data handler available for the for_type data type
Obtain a pointer to a #GdaDataHandler which can manage #GValue values of type for_type. The returned data handler will be adapted to use the current locale information (for example dates will be formatted taking into account the locale).
The returned pointer is null if there is no default data handler available for the for_type data type