snmpset("1.3.6.1.4.1.9.9.68.1.2.2.1.2.22","1.1.1.1","mystring",INTEGER,1);
Outputs:
Inside snmpset OID:1.3.6.1.4.1.9.9.68.1.2.2.1.2.22, HOST:1.1.1.1, STRING:mystring, TYPE:2, VALUE:1