sdi_bmpbkgview.cpp

改变单文档背景的VC源代码

// SDI_BMPBKGView.cpp : implementation of the CSDI_BMPBKGView class
//

#include "stdafx.h"
#include "SDI_BMPBKG.h"

#include "SDI_BMPBKGDoc.h"
#include "SDI_BMPBKGView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CSDI_BMPBKGView

IMPLEMENT_DYNCREATE(CSDI_BMPBKGView, CView)

BEGIN_MESSAGE_MAP(CSDI_BMPBKGView, CView)
	//{{AFX_MSG_MAP(CSDI_BMPBKGView)
	ON_WM_ERASEBKGND()
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSDI_BMPBKGView construction/destruction

CSDI_BMPBKGView::CSDI_BMPBKGView()
{
	m_bmpBackground.LoadResource(IDB_BKGBMP);

}

CSDI_BMPBKGView::~CSDI_BMPBKGView()
{
}

BOOL CSDI_BMPBKGView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CSDI_BMPBKGView drawing

void CSDI_BMPBKGView::OnDraw(CDC* pDC)
{
	CSDI_BMPBKGDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CSDI_BMPBKGView printing

BOOL CSDI_BMPBKGView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CSDI_BMPBKGView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CSDI_BMPBKGView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CSDI_BMPBKGView diagnostics

#ifdef _DEBUG
void CSDI_BMPBKGView::AssertValid() const
{
	CView::AssertValid();
}

void CSDI_BMPBKGView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CSDI_BMPBKGDoc* CSDI_BMPBKGView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CSDI_BMPBKGDoc)));
	return (CSDI_BMPBKGDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CSDI_BMPBKGView message handlers

BOOL CSDI_BMPBKGView::OnEraseBkgnd(CDC* pDC) 
{
    int x,y;
	CRect rc;

	GetClientRect(&rc);
	x=0;y=0;
	while(y < rc.Height()) 
	 {  //rc表示对话框的大小尺寸
			while(x < rc.Width()) 
			{
                m_bmpBackground.DrawBMP(pDC, x, y); 
				x += m_bmpBackground.GetWidth(); //得到位图的宽度
			}
					x = 0;
					y += m_bmpBackground.GetHeight();  //得到位图的高度
	 }
	 return TRUE;
}