get_date_time

Sets the datetime pointed to by value corresponding to the datetime of the given field.

Caller is responsible for making sure the field exists and has the correct type.

On success value will point to a reference of the datetime which should be unreffed with unref when no longer needed (note: this is inconsistent with e.g. get_string which doesn't return a copy of the string).

Parameters:

this	a Structure
fieldname	the name of a field
value	a pointer to a DateTime to set

Returns:

true if the value could be set correctly. If there was no field with fieldname or the existing field did not contain a data, this function returns false.