VHPI for simulation interaction

Hello

I have a SystemC-AMS and VHDL cosimulation running in automated mode.
For this I developed a C interface and wrote a shared DLL using VHPI
to access scopes and objects of VHDL design. I like to advance the
simulation at specific time steps and then stop and read the values
off. I don't see any argument in vhpi_control() for this. How can I
accomplish this? Alternatively is there a way to pass commands to TCl
interpreter from within VHPI bootstrap functions?

Thanks,

Yaseen