Function SQLGetInfo 

pub unsafe extern "system" fn SQLGetInfo(
    connection_handle: HDbc,
    info_type: InfoType,
    info_value_ptr: Pointer,
    buffer_length: i16,
    string_length_ptr: *mut i16,
) -> SqlReturn

Returns general information about the driver and data source associated with a connection

Returns

SUCCESS, SUCCESS_WITH_INFO, ERROR, or INVALID_HANDLE