How do I change/update the parameter actual value to UI parameter value? (after effects sdk, c++)

Question

How do I change/update the parameter actual value to UI parameter value? (after effects sdk). When I go test the plugin, I change value of AUDIOSLIDER1 to a number higher than 5. Then, the AUDIOSLIDER2 actual value changes (inside the code) but not on the user interface.

RUNTIME AUDIOSLIDER2 ACTUAL VALUE IS 45

RUNTIME USER INTERFACE AUDIOSLIDER2 VALUE DID NOT CHANGE and should be 45

AFTER EFFECT SDK: https://ae-plugins.docsforadobe.dev/index.html

static PF_Err
paramChanged(
    PF_InData* in_data,
    PF_OutData* out_data,
    PF_ParamDef* params[],
    PF_SmartRenderExtra* extra)
{
    PF_Err  err = PF_Err_NONE;

    int test = 100;

    if (params[SKELETON_AUDIOSLIDER1]->u.fs_d.value > 5.0f) {

        //the slider value will be set to 45.2
        params[SKELETON_AUDIOSLIDER2]->u.fs_d.value = 45.2f;

    
        //how to change the slider UI to reflect this change
        

    }


    return err;

}

Answer 1

Have a look at the example project "Supervisor":

params[SUPER_SLIDER]->u.sd.value = INT2FIX(50);
params[SUPER_SLIDER]->uu.change_flags = PF_ChangeFlag_CHANGED_VALUE;

You have to pass a flag that tells AE the UI has been modified