main.cpp

//Example of how to create a minimal MFC application
//1. Create a new Win32 project, select empty project
//2. Go to project options > Use MFC in a shared library (.dll)
//3. Make a new resource file with an empty dialog
//4. Give the dialog the name "INTERFACE1"
//5. Build and run.
//---------------------------------------
#include <afxwin.h>
#include "resource.h"
//---------------------------------------
// Globals
CEdit * pINPUT;
CEdit * pOUTPUT;
CButton * pSTART;

class GAME_FORM : public CDialog
{
public:
	GAME_FORM(CWnd* pParent = NULL) : CDialog(GAME_FORM::IDD, pParent) {};
	//Dialog data, name of dialog here
	enum { IDD = INTERFACE1 };

protected:
	virtual void DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); };
	//Called right after constructor. Initialize things here
	virtual BOOL OnInitDialog()
	{
		CDialog::OnInitDialog();

		pINPUT = (CEdit *)GetDlgItem(CE_INPUT);
		pOUTPUT = (CEdit *)GetDlgItem(CE_OUTPUT);
		pSTART = (CButton *)GetDlgItem(CB_START);

		pINPUT->SetWindowText(L"Type HERE!");
		pOUTPUT->SetWindowText(L"Click \"START\" to begin!");
		return true;
	}

public:
	//---------------------------------------------
	afx_msg void start() { STARTBUTTON(); }
	//---------------------------------------------
	void STARTBUTTON()
	{
		MessageBox(L"BYE!");
		pSTART->EnableWindow(false);
	}
	DECLARE_MESSAGE_MAP()
};
//--------------------------------------------------

//Actual App
class TheGame : public CWinApp
{
public:
	TheGame() {};
	virtual BOOL InitInstance()
	{
		CWinApp::InitInstance();
		GAME_FORM dlg;
		m_pMainWnd = &dlg;
		INT_PTR nResponse = dlg.DoModal();
		return false;
	}
};

//---------------------------------------------
//Need a Message Map Macro for both CDialog and CWinApp
BEGIN_MESSAGE_MAP(GAME_FORM, CDialog)
	ON_COMMAND(CB_START, start)	
END_MESSAGE_MAP()
//---------------------------------------------

//Start application
TheGame theApp;