求助，wince6.0+MFC内存泄漏问题

梁阿狸 2015-04-08 09:18:13

怀疑是GDI内存泄漏。程序运行两到三天就提示系统内存严重不足。请帮忙看一下哪里有问题，谢谢!
为了避免界面刷新闪烁，重写了OnEraseBkgnd函数。



//OnEraseBkgnd

BOOL CdamonDlg::OnEraseBkgnd(CDC *pDC)

{

       if (!bCreate)// CDC hDCMem。防止频繁申请释放造成内存碎片，所以只创建一次

	{

		bCreate = TRUE;

	  	hDCMem.CreateCompatibleDC(NULL);  //创建虚拟DC

	  	::GetClientRect(this->m_hWnd,&rc);         //得到窗口矩形

	  	hBm=CreateCompatibleBitmap(*pDC,rc.right-rc.left,rc.bottom -rc.top);//将窗口矩形存入位图

	  	

	}

	SelectObject(hDCMem,hBm);

	hDCMem.FillSolidRect(&rc,BACKCOL);

	DrawInfo1(&hDCMem,this,_T(""));//顶部状态栏绘制

	

	DrawTextSelf1(&hDCMem,_T("警报发放"),CRect(45,307,130,330),25,1000,FONTCOL);

	DrawTextSelf1(&hDCMem,_T("语音广播"),CRect(170,307,255,330),25,1000,FONTCOL);

	DrawTextSelf1(&hDCMem,_T("短信收发"),CRect(295,307,380,330),25,1000,FONTCOL);

	DrawTextSelf1(&hDCMem,_T("设备状态"),CRect(420,307,505,330),25,1000,FONTCOL);

	DrawTextSelf1(&hDCMem,_T("系统设置"),CRect(545,307,630,330),25,1000,FONTCOL);

	DrawTextSelf1(&hDCMem,_T("用户登录"),CRect(670,307,755,330),25,1000,FONTCOL);

	

	DrawTextSelf1_L(&hDCMem,_T("浙江圆融科技有限公司"),CRect(550,380,780,410),25,1000,WHITECOL,DT_RIGHT);

	DrawTextSelf1_L(&hDCMem,_T("浙江省人民防空办公室"),CRect(550,410,780,440),25,1000,WHITECOL,DT_RIGHT);

	DrawTextSelf1_L(&hDCMem,_T("中国人民解放军理工大学"),CRect(470,440,780,470),25,1000,WHITECOL,DT_RIGHT);

	pDC->BitBlt(0,0,rc.right-rc.left,rc.bottom-rc.top,&hDCMem,0,0,SRCCOPY);



	return TRUE;

}



//DrawTextSelf1

void DrawTextSelf1(CDC* mdc,CString Text,CRect &Rect,int lfHeight,int lfWeight,COLORREF lfColor,DWORD dwStyle)

{



	CFont font;

	LOGFONT lf;

 	memset(&lf, 0, sizeof(LOGFONT));

 	lf.lfHeight = lfHeight;

 	lf.lfWeight = lfWeight;	

 	lstrcpy(lf.lfFaceName,_T("微软雅黑"));

	lf.lfQuality = CLEARTYPE_QUALITY;

	//lf.lfCharSet = GB2312_CHARSET;

 	font.CreateFontIndirect(&lf);



	CFont* pOldFont = mdc->SelectObject(&font);

	mdc->SetBkMode(TRANSPARENT);

	mdc->SetTextColor(lfColor);

	mdc->DrawText(Text,-1,Rect,(dwStyle==DT_CENTER | DT_WORDBREAK)?dwStyle:(dwStyle | DT_WORDBREAK));

	mdc->SelectObject(pOldFont);

	if (!DeleteObject(font))

	{

		RETAILMSG(LFT_DEBUG_MSG_OUT,(_T("delete font failed!\n")));

	}

}

//DrawTextSelf1_L。其实这个函数和上一个函数基本一样，是可以替换掉的，暂时没有做这个工作

void DrawTextSelf1_L(CDC* mdc,CString Text,CRect &Rect,int lfHeight,int lfWeight,COLORREF lfColor,DWORD dwStyle)

{

	CFont font;

	LOGFONT lf;

	memset(&lf, 0, sizeof(LOGFONT));

	lf.lfHeight = lfHeight;

	lf.lfWeight = lfWeight;	

	lstrcpy(lf.lfFaceName,_T("微软雅黑"));

	lf.lfQuality = CLEARTYPE_QUALITY;

	//lf.lfCharSet = GB2312_CHARSET;

	font.CreateFontIndirect(&lf);



	CFont* pOldFont = mdc->SelectObject(&font);

	//mdc->SelectObject(&font);

	//mdc->SelectObject(&font);

	mdc->SetBkMode(TRANSPARENT);

	mdc->SetTextColor(lfColor);

	mdc->DrawText(Text,-1,Rect,(dwStyle==DT_LEFT | DT_WORDBREAK)?dwStyle:(dwStyle | DT_WORDBREAK));

	mdc->SelectObject(pOldFont);

	if (!DeleteObject(font))

	{

		RETAILMSG(LFT_DEBUG_MSG_OUT,(_T("delete font failed!\n")));

	}

}