鼠标放置在控件上，onpaint（）里双缓存的图片就不显示了，急求高手指点

Question

MFC Dialog做的一个小游戏，在onpaint（）函数里用双缓存来显示图片，添加了一个Edit控件来显示时间，当鼠标移动到控件上得时候，图片就没了，求解释！！！！

Answer 1

说清楚了 就这些东西鼠标移动到Edit控件上，OnPaint（）里绘制的图片就消失了

Answer 2

不会吧，edit是你自己写的？还是对edit做了什么处理？

Answer 3

就工具栏新建了Edit
然后调用GetDlgItem(IDC_EDIT1)->SetWindowTextW(str)输入信息
没做其他处理

Answer 4

void CCreatePlayerDlg::OnPaint()
{
CPaintDC dc(this); // device context for painting
// TODO: 在此处添加消息处理程序代码
// 不为绘图消息调用 CDialog::OnPaint()
CDC *pDC;
pDC=GetDC();
Bitmap CatchImage(1024,768);
Graphics g(pDC->m_hDC)
    ,buffer(&CatchImage);
buffer.Clear(Color::Transparent);
buffer.DrawImage(m_ImRole1,m_RectClient.left+100,m_RectClient.top+350,180,200);
    buffer.DrawImage(m_ImRole2,m_RectClient.left+350,m_RectClient.top+350,180,200);
buffer.DrawImage(m_ImRole3,m_RectClient.left+600,m_RectClient.top+350,180,200);
buffer.DrawImage(m_ImRolePlayer,m_RectClient.left+100,m_RectClient.top+30,0,0,180,200,UnitPixel);
switch  (m_statslect)
{
case 1:
buffer.DrawImage(m_ImRoleSelect,m_RectClient.left+100,m_RectClient.top+350,180,200);
break;
case 2:
buffer.DrawImage(m_ImRoleSelect,m_RectClient.left+350,m_RectClient.top+350,180,200);
break;
case 3:
buffer.DrawImage(m_ImRoleSelect,m_RectClient.left+600,m_RectClient.top+350,180,200);
break;
default:
break;
}
g.DrawImage(&CatchImage,0,0);
}

Answer 5

对，我在OnEraseBkgnd()函数中已经绘制背景图了