my $snmp_version1 = $right_frame->Checkbutton( -text => 'SNMPv1', -indicatoron => 'false', -selectcolor => 'green', -command => sub {$version = 1;}, ); $snmp_version1->pack(-padx => 5, -pady => 5,-anchor => 'w'); &BIND_MESSAGE($snmp_version1, "Send SNMP version 1 Traps"); my $snmp_version2 = $right_frame->Checkbutton( -text => 'SNMPv2', -indicatoron => 'false', -selectcolor => 'green', -command => sub {$version = 2; $snmp_version1->{'normal'}}, ); $snmp_version2->pack(-padx => 5, -pady => 5,-anchor => 'w'); &BIND_MESSAGE($snmp_version2, "Send SNMP version 2 Traps");