imageoperationdlg.cpp

这是书上的代码

// ImageOperationDlg.cpp : implementation file
//

#include "stdafx.h"
#include "ImageOperation.h"
#include "ImageOperationDlg.h"

#include "ImageOperationDoc.h"
#include "ImageOperationView.h"
#include "MainFrm.h"
#include "ChildFrm.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CImageOperationDlg dialog


CImageOperationDlg::CImageOperationDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CImageOperationDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CImageOperationDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	m_nID=IDD;
	m_pParent=pParent;
}


void CImageOperationDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);

}


BEGIN_MESSAGE_MAP(CImageOperationDlg, CDialog)
	//{{AFX_MSG_MAP(CImageOperationDlg)
	ON_WM_CANCELMODE()
//	ON_BN_CLICKED(ID_MODELESS_CANCEL, OnModelessCancel)
	ON_WM_PAINT()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CImageOperationDlg message handlers



void CImageOperationDlg::OnCancelMode() 
{
	CDialog::OnCancelMode();
	
	// TODO: Add your message handler code here
	
}



BOOL CImageOperationDlg::Create()
{
	// draw a picture on the modeless dialoge

	return CDialog::Create(m_nID, m_pParent);
}

void CImageOperationDlg::OnModelessCancel() 
{
	// TODO: Add your control notification handler code here
    CWnd::DestroyWindow();
}

void CImageOperationDlg::OnPaint() 
{
	CPaintDC dc(this); // device context for painting

	CMainFrame * pFrame = (CMainFrame*)AfxGetMainWnd();

	if(!pFrame->MDIGetActive())
	{
	 dc.TextOut(10,10,"No picture is opened");
	}
	else
	{
	 CChildFrame * pChild = (CChildFrame*)pFrame->MDIGetActive();
	 if(pChild->m_pImageObject)
	 {
		 m_pImageObject = pChild->m_pImageObject;
	     m_pImageObject->Draw( &dc );
	 }
	}

}

BOOL CImageOperationDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	// TODO: Add extra initialization here

//	CMainFrame * pFrame = (CMainFrame*)AfxGetMainWnd();
//    pFrame->pDlg = this;
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}