由ＧＤＩ＋　中Bitmap 得到HBITMAP 时遇到一个内存泄漏问题

int COrcDlg::GetBmp()

{

	HINTERNET internetopen =NULL;

	internetopen=InternetOpen("User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; InfoPath.1)",INTERNET_OPEN_TYPE_PRECONFIG,NULL,NULL,0);



	if (internetopen==NULL)

	{		

		if(NULL != internetopen) InternetCloseHandle(internetopen);

		return -1;

	}

	HINTERNET hConnection;	

	hConnection= InternetConnect(internetopen,SERVER,INTERNET_DEFAULT_HTTP_PORT,NULL,"HTTP/1.1",INTERNET_SERVICE_HTTP,0,0);

	if (NULL == hConnection)

	{

		if(NULL != hConnection) InternetCloseHandle(hConnection);

		return -1;

	}

	HINTERNET internetopenurl = NULL;

	char szHeader[]= "Content-Type: application/x-www-form-urlencoded\r\n";

	char cookie[] = "Cookie: ASP.NET_SessionId=yclxwe55xyfzwi453brbrv55";

	internetopenurl = HttpOpenRequest(hConnection,"GET","/xxx/xxx/ValidateCodeImgShow0.3201143178969629.aspx","HTTP/1.1",NULL,0,INTERNET_FLAG_RELOAD| INTERNET_FLAG_NO_COOKIES,0);

	if (NULL != internetopenurl)

	{

		

		if (TRUE == HttpAddRequestHeaders (internetopenurl,szHeader,strlen(szHeader),HTTP_ADDREQ_FLAG_REPLACE | HTTP_ADDREQ_FLAG_ADD))

		{

			if(TRUE ==HttpAddRequestHeaders (internetopenurl,cookie,strlen(cookie),HTTP_ADDREQ_FLAG_REPLACE | HTTP_ADDREQ_FLAG_ADD))						

			if(TRUE == HttpSendRequest(internetopenurl,NULL,0,NULL,NULL))

			{



				IStream* pStmBmp = NULL;

				HGLOBAL hMemBmp = GlobalAlloc(GMEM_FIXED, 1024);

				if (hMemBmp != NULL) 

				{

					CreateStreamOnHGlobal(hMemBmp, FALSE, &pStmBmp);

					if (pStmBmp == NULL) 

					{

						GlobalFree(hMemBmp);

						return FALSE;

					}



				}



				while(1)

				{

					DWORD byteread=0;

					BOOL internetreadfile;

					char buffer[1024];

					memset(buffer,0,sizeof(buffer));

					internetreadfile=InternetReadFile(internetopenurl,buffer,sizeof(buffer),&byteread);

					if(byteread==0)

						break;

					ULONG  pcbWritten;

					pStmBmp->Write(buffer,sizeof(buffer),&pcbWritten);

				}

	

				Bitmap pic(pStmBmp,NULL);

				Gdiplus::Color clr(0xFF,0xFF,0xFF); // (only blue component gets used)

				

				HBITMAP bmp;

				if (Gdiplus::Ok == pic.GetHBITMAP(clr, &bmp))

				{

					m_bmp.SetBitmap(bmp);

					::DeleteObject((HGDIOBJ)bmp);	／／这个地方必须要，不然就会内存泄漏				

				}

				



 

	

				pStmBmp->Release();

				GlobalUnlock(hMemBmp);

				GlobalFree(hMemBmp);



				//AfxMessageBox(strsn.c_str());

				InternetCloseHandle(internetopenurl);

				InternetCloseHandle(internetopen);

				//

					

			}

			

			

		}

	}

	else

	{

		if(NULL != internetopenurl) InternetCloseHandle(internetopenurl);

		if(NULL != internetopen) InternetCloseHandle(internetopen);

		return -1;

	}



	return 1;

}