snmp ... mib2c.scalar.conf, how manipulate variables

[snmp4az]

Hi,

I'm reading net-snmp, using Unix (Solaries) and C language ...

- using mib2c.scalar.conf to get the .c and .h code ... I want to manipulate variable ( managed object which already defined in MIB file ) but there is no such variable declared in the generated .c code only handler for each variable?
how can I manipulate variable outside snmpset ... and to get modified value when I request snmpget ?

-(The mib2c.int-watch.conf declare only integer and I want to declare string so I use mib2c.scalar.conf, am I right ?)

Thank you in advance ..