Accessing child component methods/functions

Hi guys! I’m using the ResizableCornerComponent as a child of my draggable component. Being draggable, the component has its own mouseDrag, but I would like to access the mouseDrag of the child ResizableCornerComponent and not only the parent one. Here my code snippets:

#pragma once

#include <JuceHeader.h>
#include "Config.h"

class Pad  : public juce::Component,
                    public juce::ComponentDragger
    ~Pad() override;

    void paint (juce::Graphics&) override;
    void resized() override;
    // parent (draggable) mouse events:
    void mouseDrag(const juce::MouseEvent& event) override;
    void mouseDown(const juce::MouseEvent& event) override;

    juce::ComponentBoundsConstrainer movableConstraints;
    juce::ComponentBoundsConstrainer resizableConstraints;

     // instance of the child (resizable corner component):
    // how can I access the mousDrag of the resizableCorner ??
    juce::ResizableCornerComponent resizableCorner = juce::ResizableCornerComponent(this, &resizableConstraints);
    juce::TextButton button;
    void init(juce::String name);

Can you help me please?