如下释放DC，有问题没？

Question

CDC* pDisplayMemDC=new CDC;
pDisplayMemDC->CreateCompatibleDC(pDC);
        .......................
        ReleaseDC(pDisplayMemDC);如上代码，释放DC的时候是ReleaseDC还是用DeleteDC？上面那样释放有问题没？谢谢  

Answer 1

或者这样释放可以吗？    CDC* pDisplayMemDC=new CDC;
pDisplayMemDC->CreateCompatibleDC(pDC);
        ...................
ReleaseDC(pDisplayMemDC);
delete pDisplayMemDC;

Answer 2

GetDC 与 ReleaseDC 配对使用。
CreateDC 与 DeleteDC 配对使用。

Answer 3

pDisplayMemDC->SelectObject(pOldObject);
pDisplayMemDC->DeleteDC();
delete pDisplayMemDC;

Answer 4

pDisplayMemDC->DeleteDC();
delete pDisplayMemDC;

Answer 5

恩CDC* pDisplayMemDC=new CDC;应该是delete pDisplayMemDC;吧。

Answer 6

析构时会调用 ::DeleteDC所以 delete pDisplayMemDC; 就可以了CDC::~CDC()
{
if (m_hDC != NULL)
::DeleteDC(Detach());
}

Answer 7

应该是pDisplayMemDC->DeleteDC();