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CreateCompatibleDC and Memory leak question

Last Modified: 2013-12-21
I am investigating a memory leak in my Windows Mobile application (Program just freezes from time to time).  I have read that when you no longer need a memory device context (such as CreateCompatibleDC) then  call the DeleteDC function to delete it.

I have an OnPaint function as follows:
void CMyClass::OnPaint()
      CBitmap bmp;
       BITMAP bi;
       CClientDC dc(this);
       CDC bmDC;

       CBitmap *pOldbmp = bmDC.SelectObject(&bmp);
       dc.BitBlt(xPos, yPos, bi.bmWidth, bi.bmHeight, &bmDC, 0, 0, SRCCOPY);


I do not have any DeleteDC function here, where should it go and do you think the above could cause my app to crash due to memory leak over a period of time?
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