[MFC] 4대 Class간 참조

//각각 헤더파일 include

#include "MainFrm.h" //메인프레임 헤더파일

#include "ClassDoc.h"   //Doc클래스 헤더파일

#include "ClassView.h" //View를 include 할때는 반드시 Doc 헤더파일이 위에잇어야한다

#include "Class.h" //APP Class 의 헤더파일

void CClassView::OnMenuView() //뷰클래스

        CClassApp *pApp=(CClassApp *)AfxGetApp();   //View -> App
        CMainFrame *pMain=(CMainFrame *)AfxGetMainWnd();  //View -> MainFrm

        CClassDoc *pDoc=(CClassDoc *)pMain->GetActiveDocument(); //View -> MainFrm -> Doc

        CClassDoc *pDoc=(CClassDoc *)GetDocument();                     //View -> Doc

 //MainFrame 클래스

        CClassView *pView=(CClassView *)GetActiveView();  //MainFrm -> View

        CClassDoc *pDoc=(CClassDoc *)GetActiveDocument();  //MainFrm -> Doc

        CClassApp *pApp=(CClassApp *)AfxGetApp(); //MainFrm -> App

//Doc 클래스

        CClassApp *pApp=(CClassApp *)AfxGetApp(); //Doc -> App

        CMainFrame *pMain=(CMainFrame *)AfxGetMainWnd(); //Doc -> MainFrm

        CClassView *pView=(CClassView *)pMain->GetActiveView(); // Doc -> MainFrm -> View

        CClassView *pView=(CClassView *)m_viewList.GetHead();      // Doc -> View

//App 클래스

        CMainFrame *pMain=(CMainFrame *)AfxGetMainWnd(); //App -> MainFrm

        CClassView *pView=(CClassView *)pMain->GetActiveView(); //App -> MainFrm -> View

        CClassDoc *pDoc=(CClassDoc *)pMain->GetActiveDocument(); //App -> MainFrm -> Doc

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