MFC实现下载网络图片缓存到本地

来源：互联网发布：ubuntu chrome 编辑：程序博客网时间：2024/06/13 12:03

#include <afxinet.h>
新建一个基于对话框的工程，然后给确定按钮添加如下处理事件！【引入头文件afxinet.h】void CTestDlg::OnOK() {const int dwBufSize = 1024;CInternetSession * Session = new CInternetSession; CHttpFile* pHttpFile = NULL; CStdioFile pLocalFile; DWORD dwlen; try{ LPBYTE lpBuf = new byte[dwBufSize]; // 把这个szPath置为D://test.jpg就行了pLocalFile.Open( "D://test.jpg", CFile::modeCreate | CFile::modeWrite | CFile::typeBinary ); pHttpFile =(CHttpFile*)Session->OpenURL( "http://hiphotos.baidu.com/q252061160/pic/item/e4a5a9f010c6502bb17ec59d.jpg", 1, INTERNET_FLAG_TRANSFER_BINARY | INTERNET_FLAG_RELOAD | INTERNET_FLAG_DONT_CACHE, NULL, 0); while(dwlen = pHttpFile-> Read(lpBuf, dwBufSize-1 )) { pLocalFile.Write(lpBuf,dwlen); } pLocalFile.Close(); pHttpFile->Close(); pHttpFile=NULL; delete[] lpBuf; }catch(CInternetException eInt) { eInt.Delete();} catch(CMemoryException eMem) { eMem.Delete(); } catch(CFileException eFile) { eFile.Delete(); } CDialog::OnOK();}http://blog.csdn.net/ccjjyy/article/details/6098104

0 0