Read from MTA pin.conf files

Hi,

I have a business requirement to read an integer value from MTAs pin.conf file and  use it in the MTA processing:

The documentation gives three helper functions for the same:

1)pin_mta_get_decimal_from_pinconf

2)pin_mta_get_integer_from_pinconf

3)pin_mta_get_string_from_pinconf

However, its not clear how to use them. Can an example be given for these?

In the pin_mta_get_integer_from_pinconf function, what should be the values for these function arguments?

          char            *pinconf_name,

          int32            field,

          int32            flag,

Please give examples to use these helper functions to read values from pin.conf file.