MFC 对话框添加背景图片

1.插入一个Bitmap的资源图片，假设资源名称为：IDC_BITMAP1
2.在CXXXDialog::OnPaint()中实现：

     
     
     
     

      
      
      
      void
      
      
      
       CMyDialogDlg::OnPaint()
{
    
      
      
      
      if
      
      
      
       (IsIconic())
    {
        CPaintDC dc(
      
      
      
      this
      
      
      
      ); 
      
      
      
      //
      
      
      
       用于绘制的设备上下文
      
      
      
      

      
      
      
      
        SendMessage(WM_ICONERASEBKGND, reinterpret_cast
      
      
      
      <
      
      
      
      WPARAM
      
      
      
      >
      
      
      
      (dc.GetSafeHdc()), 
      
      
      
      0
      
      
      
      );

        
      
      
      
      //
      
      
      
       使图标在工作区矩形中居中
      
      
      
      

      
      
      
              
      
      
      
      int
      
      
      
       cxIcon 
      
      
      
      =
      
      
      
       GetSystemMetrics(SM_CXICON);
        
      
      
      
      int
      
      
      
       cyIcon 
      
      
      
      =
      
      
      
       GetSystemMetrics(SM_CYICON);
        CRect rect;
        GetClientRect(
      
      
      
      &
      
      
      
      rect);
        
      
      
      
      int
      
      
      
       x 
      
      
      
      =
      
      
      
       (rect.Width() 
      
      
      
      -
      
      
      
       cxIcon 
      
      
      
      +
      
      
      
       
      
      
      
      1
      
      
      
      ) 
      
      
      
      /
      
      
      
       
      
      
      
      2
      
      
      
      ;
        
      
      
      
      int
      
      
      
       y 
      
      
      
      =
      
      
      
       (rect.Height() 
      
      
      
      -
      
      
      
       cyIcon 
      
      
      
      +
      
      
      
       
      
      
      
      1
      
      
      
      ) 
      
      
      
      /
      
      
      
       
      
      
      
      2
      
      
      
      ;

        
      
      
      
      //
      
      
      
       绘制图标
      
      
      
      

      
      
      
              dc.DrawIcon(x, y, m_hIcon);
    }
    
      
      
      
      else
      
      
      
      
    {
        
      
      
      
      //
      
      
      
      
        
      
      
      
      //
      
      
      
       给窗体添加背景
        
      
      
      
      //

      
      
      
              CPaintDC dc(
      
      
      
      this
      
      
      
      );
        CRect rc;
        GetClientRect(
      
      
      
      &
      
      
      
      rc);
        CDC dcMem;
        dcMem.CreateCompatibleDC(
      
      
      
      &
      
      
      
      dc);
        CBitmap bmpBackground;
        bmpBackground.LoadBitmap(IDB_BITMAP1);

        BITMAP bitmap;
        bmpBackground.GetBitmap(
      
      
      
      &
      
      
      
      bitmap);
        CBitmap
      
      
      
      *
      
      
      
       pbmpPri 
      
      
      
      =
      
      
      
       dcMem.SelectObject(
      
      
      
      &
      
      
      
      bmpBackground);
        dc.StretchBlt(
      
      
      
      0
      
      
      
      ,
      
      
      
      0
      
      
      
      ,rc.Width(), rc.Height(), 
      
      
      
      &
      
      
      
      dcMem,
      
      
      
      0
      
      
      
      ,
      
      
      
      0
      
      
      
      ,bitmap.bmWidth, bitmap.bmHeight, SRCCOPY);
    }
}
     
     
     
     

转载于：http://www.cnblogs.com/emyueguang/archive/2011/05/26/2057903.html