打开并显示位图 mfc view

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头文件中

CBitmap m_bitmap1;
CRect rect;

ondraw中

//////////////////////////打开位图文件
    if(m_bitmap1.m_hObject)
{
  CDC dcImage;
  if(!dcImage.CreateCompatibleDC(pDC))
   MessageBox(NULL,"wrong",NULL);
  BITMAP bm;

  m_bitmap1.GetBitmap(&bm);
  dcImage.SelectObject(&m_bitmap1);
  pDC->BitBlt(0,50,bm.bmWidth,bm.bmHeight,&dcImage,0,0,SRCCOPY);

}

void CMyBView::OnFileOpen()
{
// TODO: Add your command handler code here
      CFileDialog filedlg1(TRUE,"*.bmp","位图文件",OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,"(*.bmp)|*.bmp|(*.*)|*.*||",NULL);

        if(filedlg1.DoModal()==IDOK)
  {
      CString filename;//filename!=NULL&&
     filename= filedlg1.GetFileName();

   if(filedlg1.GetFileExt( )=="bmp")
   {
      HBITMAP hBitmap=(HBITMAP)LoadImage(NULL,_T(filename),IMAGE_BITMAP,
      0,0,LR_CREATEDIBSECTION|LR_DEFAULTSIZE|LR_LOADFROMFILE);
            if(m_bitmap1.m_hObject)m_bitmap1.DeleteObject();
      m_bitmap1.Attach(hBitmap);
         Invalidate(TRUE );
   }
   else MessageBox("Not BMP files!");

  }

}

在文件中点击打开

弹出一个文件对话框打开bmp位图文件并在视图中显示的程序段