picture control

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DDX_Control(pDX, IDC_STATIC_PICTURE, m_picture);

// TODO: 在此添加控件通知处理程序代码
HBITMAP hBmp = LoadBitmap(AfxGetApp()->m_hInstance,MAKEINTRESOURCE(IDB_BITMAP2) );

BITMAP bmp;
GetObject(hBmp,sizeof(bmp),&bmp);
CRect rc;
GetClientRect(&rc);

if (bmp.bmHeight>rc.Height() )
{
  rc.bottom = rc.top + bmp.bmHeight;
  MoveWindow(&rc);
  m_picture.MoveWindow(&rc);
}

if (bmp.bmWidth>rc.Width() )
{
  rc.right = rc.left + bmp.bmWidth;
  MoveWindow(&rc);
  m_picture.MoveWindow(&rc);
}
m_picture.SetBitmap(hBmp);

void CpictureDlg::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
{
  CDialog::OnPaint();
}
}