C++中使用CAtlHttpClient显示网络图片的方法,支持png,bmp,gif图片格式

来源：互联网发布：单片机与传感器编辑：程序博客网时间：2024/05/21 18:32

示例程序下载地址: http://download.csdn.net/detail/mnorst/4186550

void CShowNetImageView::OnDraw(CDC* pDC){CShowNetImageDoc* pDoc = GetDocument();ASSERT_VALID(pDoc);if (!pDoc)return;// TODO: 在此处为本机数据添加绘制代码CAtlHttpClient* client = new CAtlHttpClient();if (client->Navigate( _T("http://www.baidu.com/img/baidu_sylogo1.gif") )){if (client->GetStatus() == 200) // 200 = successful HTTP transaction{HGLOBAL hGlobal  =  GlobalAlloc(GMEM_MOVEABLE, client->GetBodyLength());void *  pData  =  GlobalLock(hGlobal);memcpy(pData, client->GetBody(), client->GetBodyLength());GlobalUnlock(hGlobal);IStream *  pStream  =  NULL;if (CreateStreamOnHGlobal(hGlobal, TRUE,  & pStream)  ==  S_OK){CImage image;if (SUCCEEDED(image.Load(pStream))){image.Draw(pDC->GetSafeHdc(), 0, 0);}pStream -> Release();    }GlobalFree(hGlobal);CFile file;file.Open(_T("D:\\ab.gif"), CFile::modeCreate | CFile::modeWrite );file.Write(client->GetBody(), client->GetBodyLength());file.Flush();file.Close();}}}