text: 
  // GDI.h : main header file for the GDI application
  //
  #pragma once
  
  #ifndef __AFXWIN_H__
  	#error "include 'pch.h' before including this file for PCH"
  #endif
  
  #include "resource.h"       // main symbols
  
  
  // CGDIApp:
  // See GDI.cpp for the implementation of this class
  //
  
  class CGDIApp : public CWinApp
  {
  public:
  	CGDIApp() noexcept;
  
  
  // Overrides
  public:
  	virtual BOOL InitInstance();
  	virtual int ExitInstance();
  
  // Implementation
  	UINT  m_nAppLook;
  	afx_msg void OnAppAbout();
  	DECLARE_MESSAGE_MAP()
  };
  
  extern CGDIApp theApp;
  