为什么内存占用越来越大??

Question

在CView里现实一些图片
可是在刷新的过程中内存越来越大, 不知如何解决.void CZYFloatView::PrintBMP(CDC * pDC,CString bmppath, CRect rect)
{
hDesDC = pDC->m_hDC;
hSrcDC = CreateCompatibleDC(hDesDC);
hBitmap=(HBITMAP)LoadImage(AfxGetInstanceHandle(),bmppath,IMAGE_BITMAP,0,0,LR_LOADFROMFILE|LR_CREATEDIBSECTION);
GetObject(hBitmap, sizeof BITMAP , &bm);
SelectObject(hSrcDC, hBitmap);
::SetStretchBltMode(hDesDC,COLORONCOLOR);  
//::StretchBlt(hDesDC, rect.left, rect.top, 222,222, hSrcDC, 0, 0, bm.bmWidth, bm.bmHeight,+SRCCOPY);
::StretchBlt(hDesDC, rect.left, rect.top, rect.right-rect.left, rect.bottom-rect.top, hSrcDC, 0, 0, bm.bmWidth, bm.bmHeight,+SRCCOPY);}

Answer 1

Read a book on Win32 API, carefuly.         hDesDC = pDC->m_hDC;
hSrcDC = CreateCompatibleDC(hDesDC);
hBitmap=(HBITMAP)LoadImage(AfxGetInstanceHandle(),bmppath,IMAGE_BITMAP,0,0,LR_LOADFROMFILE|LR_CREATEDIBSECTION);
GetObject(hBitmap, sizeof BITMAP , &bm);
HGDIOBJ hOld = SelectObject(hSrcDC, hBitmap);
::SetStretchBltMode(hDesDC,COLORONCOLOR);  
//::StretchBlt(hDesDC, rect.left, rect.top, 222,222, hSrcDC, 0, 0, bm.bmWidth, bm.bmHeight,+SRCCOPY);
::StretchBlt(hDesDC, rect.left, rect.top, rect.right-rect.left, rect.bottom-rect.top, hSrcDC, 0, 0, bm.bmWidth, bm.bmHeight,+SRCCOPY);         SelectObject(hSrcDC, hOld);
         DeleteObject(hBitmap);
         DeleteDC(hSrcDC);

Answer 2

DeleteObject(hBitmap);
DeleteDC(hSrcDC);

Answer 3

同意袁的，加了现场还原
申请了资源没释放
DeleteObject(hBitmap);
DeleteDC(hSrcDC);

Answer 4

袁与虫说的没错.
申请了的资源一定要释放.
另外在编写代码的过程中,要养成成对编写的习惯
当你写了SelectObject后,就要马上写对应的DeleteObject语句;
用了new后,就要马上编写对应得delete语句
这样就可以减少很多不必要的资源泄漏