Como desenvolver aplicação de um calculadora wxDev c++

Boa noite fiz uma pesquisa acabei descobrindo uma versão Dev c++ lida justamente com interface grafica do wxWidgets, conhecido como wxDev c++ numa tentativa criar uma calculdora claramente programação orientação objeto.
ai esta interface pronta porem ando tendo problemas com codigo, diferente do java implementações do metodo é fora da classe.

interface

Meus codigo:

\\Calculadora.h
//-----------------------------------------------------------------
///
/// @file      Calculadora.h
/// @author    LeonardoPc
/// Created:   05/09/2022 22:12:28
/// @section   DESCRIPTION
///            Calculadora class declaration
///
///------------------------------------------------------------------

#ifndef __CALCULADORA_H__
#define __CALCULADORA_H__

#ifdef __BORLANDC__
	#pragma hdrstop
#endif

#ifndef WX_PRECOMP
	#include <wx/wx.h>
	#include <wx/frame.h>
#else
	#include <wx/wxprec.h>
#endif

//Do not add custom headers between 
//Header Include Start and Header Include End.
//wxDev-C++ designer will remove them. Add custom headers after the block.
////Header Include Start
#include <wx/xrc/xmlres.h>
#include <wx/xrc/xh_all.h>
#include <wx/button.h>
#include <wx/stattext.h>
#include <wx/panel.h>
////Header Include End

////Dialog Style Start
#undef Calculadora_STYLE
#define Calculadora_STYLE wxCAPTION | wxSYSTEM_MENU | wxMINIMIZE_BOX | wxCLOSE_BOX
////Dialog Style End

class Calculadora : public wxFrame
{
	private:
		DECLARE_EVENT_TABLE();
		
	public:
		Calculadora(wxWindow *parent, wxWindowID id = 1, const wxString &title = wxT("Calculadora"), const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = Calculadora_STYLE);
		virtual ~Calculadora();
		void WxButton2Click(wxCommandEvent& event);
		void CalculadoraActivate(wxActivateEvent& event);
		void WxEdit1Updated(wxCommandEvent& event);
		void Wxnum8Click(wxCommandEvent& event);
		void Wxnum1Click(wxCommandEvent& event);
		void WxPanel1UpdateUI(wxUpdateUIEvent& event);
		void WxButton1Click(wxCommandEvent& event);
		
	public:
		//Do not add custom control declarations between
		//GUI Control Declaration Start and GUI Control Declaration End.
		//wxDev-C++ will remove them. Add custom code after the block.
		////GUI Control Declaration Start
		wxButton *WxButton2;
		wxButton *WxButton3;
		wxButton *wxsomar;
		wxButton *WxButton1;
		wxButton *Wxmultiplicar;
		wxButton *Wxvingular;
		wxButton *Wxnum0;
		wxButton *Wxponto;
		wxButton *Wxnum3;
		wxButton *Wxnum2;
		wxButton *Wxnum1;
		wxButton *wxnum6;
		wxButton *Wxnum5;
		wxButton *WXnum4;
		wxButton *Wxnum9;
		wxButton *Wxnum8;
		wxButton *Wxnum7;
		wxStaticText *WxStaticText1;
		wxPanel *WxPanel1;
		////GUI Control Declaration End
		
	private:
		//Note: if you receive any error with these enum IDs, then you need to
		//change your old form code that are based on the #define control IDs.
		//#defines may replace a numeric value for the enum names.
		//Try copy and pasting the below block in your old form header files.
		enum
		{
			////GUI Enum Control ID Start
			ID_WXBUTTON2 = 1024,
			ID_WXBUTTON3 = 1023,
			ID_WXBUTTON2 = 1022,
			ID_WXBUTTON1 = 1021,
			ID_WXBUTTON1 = 1019,
			ID_WXBUTTON1 = 1018,
			ID_WXBUTTON1 = 1014,
			ID_WXBUTTON1 = 1013,
			ID_WXBUTTON2 = 1010,
			ID_WXNUM9 = 1009,
			ID_WXSTATICTEXT1 = 1006,
			ID_WXPANEL1 = 1005,
			////GUI Enum Control ID End
			ID_DUMMY_VALUE_ //don't remove this value unless you have other enum values
		};
		
	private:
		void OnClose(wxCloseEvent& event);
		void CreateGUIControls();
};
#endif

//Calculadora.cpp
///-----------------------------------------------------------------
///
/// @file      Calculadora.cpp
/// @author    LeonardoPc
/// Created:   05/09/2022 22:12:28
/// @section   DESCRIPTION
///            Calculadora class implementation
///
///------------------------------------------------------------------

#include "Calculadora.h"

//Do not add custom headers between
//Header Include Start and Header Include End
//wxDev-C++ designer will remove them
////Header Include Start
////Header Include End

//----------------------------------------------------------------------------
// Calculadora
//----------------------------------------------------------------------------
//Add Custom Events only in the appropriate block.
//Code added in other places will be removed by wxDev-C++
////Event Table Start
BEGIN_EVENT_TABLE(Calculadora,wxFrame)
	////Manual Code Start
	////Manual Code End
	
	EVT_CLOSE(Calculadora::OnClose)
	EVT_ACTIVATE(Calculadora::CalculadoraActivate)
	EVT_BUTTON(XRCID(wxT("Wxmultiplicar")),Calculadora::WxButton1Click)
	EVT_BUTTON(XRCID(wxT("Wxvingular")),Calculadora::Wxnum1Click)
	EVT_BUTTON(XRCID(wxT("Wxnum0")),Calculadora::Wxnum1Click)
	EVT_BUTTON(XRCID(wxT("Wxponto")),Calculadora::Wxnum1Click)
	EVT_BUTTON(XRCID(wxT("Wxnum1")),Calculadora::Wxnum1Click)
	EVT_BUTTON(XRCID(wxT("Wxnum8")),Calculadora::Wxnum8Click)
	
	EVT_UPDATE_UI(XRCID(wxT("WxPanel1")),Calculadora::WxPanel1UpdateUI)
END_EVENT_TABLE()
////Event Table End

Calculadora::Calculadora(wxWindow *parent, wxWindowID id, const wxString &title, const wxPoint &position, const wxSize& size, long style)
: wxFrame(parent, id, title, position, size, style)
{
	CreateGUIControls();
}

Calculadora::~Calculadora()
{
}

void Calculadora::CreateGUIControls()
{
	//Do not add custom code between
	//GUI Items Creation Start and GUI Items Creation End
	//wxDev-C++ designer will remove them.
	//Add the custom code before or after the blocks
	////GUI Items Creation Start

	WxPanel1 = wxXmlResource::Get()->LoadPanel(this,wxT("WxPanel1"));

	WxStaticText1 = XRCCTRL(*WxPanel1, wxT("WxStaticText1"), wxStaticText);

	Wxnum7 = XRCCTRL(*WxPanel1, wxT("Wxnum7"), wxButton);
	Wxnum7->SetForegroundColour(wxColour(wxT("WHITE")));
	Wxnum7->SetBackgroundColour(wxColour(wxT("BLACK")));

	Wxnum8 = XRCCTRL(*WxPanel1, wxT("Wxnum8"), wxButton);
	Wxnum8->SetForegroundColour(wxColour(wxT("WHITE")));
	Wxnum8->SetBackgroundColour(wxColour(wxT("BLACK")));

	Wxnum9 = XRCCTRL(*WxPanel1, wxT("Wxnum9"), wxButton);
	Wxnum9->SetBackgroundColour(wxColour(wxT("BLACK")));

	WXnum4 = XRCCTRL(*WxPanel1, wxT("WXnum4"), wxButton);
	WXnum4->SetBackgroundColour(wxColour(wxT("BLACK")));

	Wxnum5 = XRCCTRL(*WxPanel1, wxT("Wxnum5"), wxButton);
	Wxnum5->SetBackgroundColour(wxColour(wxT("BLACK")));

	wxnum6 = XRCCTRL(*WxPanel1, wxT("wxnum6"), wxButton);
	wxnum6->SetBackgroundColour(wxColour(wxT("BLACK")));

	Wxnum1 = XRCCTRL(*WxPanel1, wxT("Wxnum1"), wxButton);
	Wxnum1->SetForegroundColour(wxColour(wxT("WHITE")));
	Wxnum1->SetBackgroundColour(wxColour(wxT("BLACK")));

	Wxnum2 = XRCCTRL(*WxPanel1, wxT("Wxnum2"), wxButton);
	Wxnum2->SetBackgroundColour(wxColour(wxT("BLACK")));

	Wxnum3 = XRCCTRL(*WxPanel1, wxT("Wxnum3"), wxButton);
	Wxnum3->SetBackgroundColour(wxColour(wxT("BLACK")));

	Wxponto = XRCCTRL(*WxPanel1, wxT("Wxponto"), wxButton);
	Wxponto->SetForegroundColour(wxColour(wxT("WHITE")));
	Wxponto->SetBackgroundColour(wxColour(wxT("BLACK")));

	Wxnum0 = XRCCTRL(*WxPanel1, wxT("Wxnum0"), wxButton);
	Wxnum0->SetForegroundColour(wxColour(wxT("WHITE")));
	Wxnum0->SetBackgroundColour(wxColour(wxT("BLACK")));

	Wxvingular = XRCCTRL(*WxPanel1, wxT("Wxvingular"), wxButton);
	Wxvingular->SetForegroundColour(wxColour(wxT("WHITE")));
	Wxvingular->SetBackgroundColour(wxColour(wxT("BLACK")));

	Wxmultiplicar = XRCCTRL(*WxPanel1, wxT("Wxmultiplicar"), wxButton);
	Wxmultiplicar->SetForegroundColour(wxColour(wxT("WHITE")));
	Wxmultiplicar->SetBackgroundColour(wxColour(wxT("BLACK")));
	Wxmultiplicar->SetFont(wxFont(14, wxSWISS, wxNORMAL, wxNORMAL, false));

	WxButton1 = XRCCTRL(*WxPanel1, wxT("WxButton1"), wxButton);
	WxButton1->SetForegroundColour(wxColour(wxT("WHITE")));
	WxButton1->SetBackgroundColour(wxColour(000,000,000));
	WxButton1->SetFont(wxFont(9, wxSWISS, wxNORMAL, wxNORMAL, false, wxT("Arial Narrow")));

	wxsomar = XRCCTRL(*WxPanel1, wxT("wxsomar"), wxButton);
	wxsomar->SetForegroundColour(wxColour(wxT("WHITE")));
	wxsomar->SetBackgroundColour(wxColour(wxT("BLACK")));

	WxButton3 = XRCCTRL(*WxPanel1, wxT("WxButton3"), wxButton);
	WxButton3->SetForegroundColour(wxColour(wxT("WHITE")));
	WxButton3->SetBackgroundColour(wxColour(wxT("BLACK")));

	WxButton2 = XRCCTRL(*WxPanel1, wxT("WxButton2"), wxButton);
	WxButton2->SetForegroundColour(wxColour(wxT("WHITE")));
	WxButton2->SetBackgroundColour(wxColour(wxT("BLACK")));

	SetTitle(wxT("Calculadora"));
	SetIcon(wxNullIcon);
	SetSize(8,8,210,289);
	Center();
	
	////GUI Items Creation End
}

void  Calculadora::OnClose(wxCloseEvent& event)
{
	Destroy();
}

/*
 * WxButton2Click
 

/*
 * WxEdit1Updated
 */
void Calculadora::WxEdit1Updated(wxCommandEvent& event)
{
	// insert your code here
}

/*
 * Wxnum8Click
 */
void Calculadora::Wxnum8Click(wxCommandEvent& event)
{
	// insert your code here
}

/*
 * Wxnum1Click
 */
void Calculadora::Wxnum1Click(wxCommandEvent& event)
{
	// insert your code here
}

/*
 * WxPanel1UpdateUI
 */
void Calculadora::WxPanel1UpdateUI(wxUpdateUIEvent& event)
{
	// insert your code here
}

/*
 * WxButton1Click
 */
void Calculadora::WxButton1Click(wxCommandEvent& event)
{
	// insert your code here
}

sem conta tbm utiliza recurso html.