Reset parameter using the SDK

Is it possible to reset a specific parameter, like PF_Param_FLOAT_SLIDER or PF_Param_POINT_3D, using the SDK, just as if the user have done it through the UI?

I'm currently doing a workaround by copying the default value to the normal value like this:

paramDef->u.fs_d.value = paramDef->u.fs_d.dephault;

But this approach doesn't work for PF_Param_ARBITRARY_DATA, nor for the special case with PF_Param_POINT_3D initialized in the center with (50, 50, 0).

Is there any other way?