demodlg.cpp

这是MFC经典问答书的光盘内容

// DemoDlg.cpp : implementation file
//

#include "stdafx.h"
#include "initialposition.h"
#include "DemoDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CDemoDlg dialog


CDemoDlg::CDemoDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDemoDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDemoDlg)
	m_nX = 0;
	m_nY = 0;
	m_nShape = -1;
	//}}AFX_DATA_INIT
}


void CDemoDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDemoDlg)
	DDX_Control(pDX, IDC_SHAPE, m_cmbShape);
	DDX_Control(pDX, IDC_Y, m_edtY);
	DDX_Control(pDX, IDC_X, m_edtX);
	DDX_Text(pDX, IDC_X, m_nX);
	DDX_Text(pDX, IDC_Y, m_nY);
	DDX_CBIndex(pDX, IDC_SHAPE, m_nShape);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CDemoDlg, CDialog)
	//{{AFX_MSG_MAP(CDemoDlg)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

///////////////////////////////////////////////////////////
// EkGetActiveView : function implementation
//
// Return the active view window or NULL

CView* EkGetActiveView()
{
	CWnd* pMainWnd = AfxGetMainWnd();
	ASSERT_VALID( pMainWnd );

	if( !pMainWnd->IsKindOf( RUNTIME_CLASS( CFrameWnd ) ) )
	{
		return NULL;
	}

	return static_cast<CFrameWnd*>( pMainWnd )
						->GetActiveFrame()->GetActiveView();
}

/////////////////////////////////////////////////////////////////////////////
// CDemoDlg message handlers

BOOL CDemoDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();

	// Move dialog top-left corner to current point
	// in active frame window

	// 1 - Get active view window rectangle in
	// screen coordinates
	CWnd* pActiveView = EkGetActiveView();
	ASSERT_VALID( pActiveView );

    CRect rcActiveView;
    pActiveView->GetWindowRect( &rcActiveView );

	// 2 - Move the dialog to the desired position
    SetWindowPos(	NULL,
					rcActiveView.left + m_nX,
					rcActiveView.top + m_nY,
					0, 0,
					SWP_NOSIZE | SWP_NOZORDER );
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}