[Alan Anderson]

You just need to turn

if (limit_switch_active)
{
    activate_solenoid_6;
    activate_solenoid_7;
}

into real code that compiles.

Replace limit_switch_active with whatever it takes to read your limit switch. That's something like Clamplimit->Get(), right? Replace the activate_solenoid_# with whatever it takes to put your solenoids in the desired state. I don't know how you've instantiated your limit switch or your solenoids, and I don't know how they are wired, so I can't give you working code to copy and paste.

I assume you'll want some way to open the claw later, right?